./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2d06ab5-64ca-4f70-b7ab-87a835767d82/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2d06ab5-64ca-4f70-b7ab-87a835767d82/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_a2d06ab5-64ca-4f70-b7ab-87a835767d82/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2d06ab5-64ca-4f70-b7ab-87a835767d82/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2d06ab5-64ca-4f70-b7ab-87a835767d82/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_a2d06ab5-64ca-4f70-b7ab-87a835767d82/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 f299e5c87ef8b927f907740b52cd3b6a05ddc6197a3b61da31c7c3837813d6c6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:09:55,585 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:09:55,685 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2d06ab5-64ca-4f70-b7ab-87a835767d82/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:09:55,689 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:09:55,691 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:09:55,724 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:09:55,727 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:09:55,728 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:09:55,729 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:09:55,731 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:09:55,732 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:09:55,732 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:09:55,733 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:09:55,734 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:09:55,738 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:09:55,738 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:09:55,739 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:09:55,739 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:09:55,739 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:09:55,740 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:09:55,740 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:09:55,741 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:09:55,741 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:09:55,741 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:09:55,742 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:09:55,744 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:09:55,744 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:09:55,745 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:09:55,745 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:09:55,745 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:09:55,746 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:09:55,746 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:09:55,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:09:55,747 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:09:55,748 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:09:55,748 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:09:55,749 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:09:55,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:09:55,750 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:09:55,750 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:09:55,751 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:09:55,751 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:09:55,751 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_a2d06ab5-64ca-4f70-b7ab-87a835767d82/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2d06ab5-64ca-4f70-b7ab-87a835767d82/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f299e5c87ef8b927f907740b52cd3b6a05ddc6197a3b61da31c7c3837813d6c6 [2024-10-31 22:09:56,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:09:56,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:09:56,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:09:56,100 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:09:56,100 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:09:56,102 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2d06ab5-64ca-4f70-b7ab-87a835767d82/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c Unable to find full path for "g++" [2024-10-31 22:09:58,141 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:09:58,400 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:09:58,400 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2d06ab5-64ca-4f70-b7ab-87a835767d82/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-31 22:09:58,418 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2d06ab5-64ca-4f70-b7ab-87a835767d82/bin/uautomizer-verify-4GaUIPS5ZU/data/966d25e85/a2560508f3bf41949415fbef34d4d947/FLAG6ed4cb394 [2024-10-31 22:09:58,436 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2d06ab5-64ca-4f70-b7ab-87a835767d82/bin/uautomizer-verify-4GaUIPS5ZU/data/966d25e85/a2560508f3bf41949415fbef34d4d947 [2024-10-31 22:09:58,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:09:58,440 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:09:58,442 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:09:58,442 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:09:58,448 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:09:58,449 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:09:58" (1/1) ... [2024-10-31 22:09:58,450 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45573777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:58, skipping insertion in model container [2024-10-31 22:09:58,451 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:09:58" (1/1) ... [2024-10-31 22:09:58,524 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:09:58,940 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_a2d06ab5-64ca-4f70-b7ab-87a835767d82/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[9868,9881] [2024-10-31 22:09:59,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:09:59,094 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:09:59,184 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_a2d06ab5-64ca-4f70-b7ab-87a835767d82/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[9868,9881] [2024-10-31 22:09:59,236 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:09:59,276 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:09:59,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:59 WrapperNode [2024-10-31 22:09:59,277 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:09:59,278 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:09:59,278 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:09:59,278 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:09:59,284 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:59" (1/1) ... [2024-10-31 22:09:59,298 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:59" (1/1) ... [2024-10-31 22:09:59,357 INFO L138 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1006 [2024-10-31 22:09:59,357 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:09:59,358 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:09:59,358 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:09:59,358 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:09:59,370 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:59" (1/1) ... [2024-10-31 22:09:59,371 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:59" (1/1) ... [2024-10-31 22:09:59,378 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:59" (1/1) ... [2024-10-31 22:09:59,399 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 22:09:59,400 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:59" (1/1) ... [2024-10-31 22:09:59,400 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:59" (1/1) ... [2024-10-31 22:09:59,413 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:59" (1/1) ... [2024-10-31 22:09:59,426 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:59" (1/1) ... [2024-10-31 22:09:59,429 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:59" (1/1) ... [2024-10-31 22:09:59,433 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:59" (1/1) ... [2024-10-31 22:09:59,442 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:09:59,442 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:09:59,443 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:09:59,443 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:09:59,450 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:59" (1/1) ... [2024-10-31 22:09:59,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:09:59,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2d06ab5-64ca-4f70-b7ab-87a835767d82/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:09:59,487 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2d06ab5-64ca-4f70-b7ab-87a835767d82/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:09:59,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2d06ab5-64ca-4f70-b7ab-87a835767d82/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:09:59,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:09:59,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:09:59,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:09:59,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:09:59,718 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:09:59,720 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:10:00,947 INFO L? ?]: Removed 110 outVars from TransFormulas that were not future-live. [2024-10-31 22:10:00,947 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:10:00,968 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:10:00,968 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:10:00,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:10:00 BoogieIcfgContainer [2024-10-31 22:10:00,969 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:10:00,975 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:10:00,975 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:10:00,979 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:10:00,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:09:58" (1/3) ... [2024-10-31 22:10:00,980 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1742be16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:10:00, skipping insertion in model container [2024-10-31 22:10:00,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:59" (2/3) ... [2024-10-31 22:10:00,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1742be16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:10:00, skipping insertion in model container [2024-10-31 22:10:00,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:10:00" (3/3) ... [2024-10-31 22:10:00,982 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-31 22:10:00,999 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:10:00,999 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:10:01,084 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:10:01,094 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;@71e10c8e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:10:01,094 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:10:01,103 INFO L276 IsEmpty]: Start isEmpty. Operand has 249 states, 247 states have (on average 1.7246963562753037) internal successors, (426), 248 states have internal predecessors, (426), 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 22:10:01,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-31 22:10:01,119 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:10:01,121 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] [2024-10-31 22:10:01,122 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:10:01,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:01,131 INFO L85 PathProgramCache]: Analyzing trace with hash -678392844, now seen corresponding path program 1 times [2024-10-31 22:10:01,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:01,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724287333] [2024-10-31 22:10:01,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:01,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:01,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:02,184 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 22:10:02,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:02,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724287333] [2024-10-31 22:10:02,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724287333] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:02,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:02,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 22:10:02,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726084108] [2024-10-31 22:10:02,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:02,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:10:02,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:02,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:10:02,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:10:02,234 INFO L87 Difference]: Start difference. First operand has 249 states, 247 states have (on average 1.7246963562753037) internal successors, (426), 248 states have internal predecessors, (426), 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 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 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 22:10:02,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:10:02,766 INFO L93 Difference]: Finished difference Result 1119 states and 1815 transitions. [2024-10-31 22:10:02,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:10:02,769 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 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 95 [2024-10-31 22:10:02,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:10:02,787 INFO L225 Difference]: With dead ends: 1119 [2024-10-31 22:10:02,787 INFO L226 Difference]: Without dead ends: 983 [2024-10-31 22:10:02,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-10-31 22:10:02,800 INFO L432 NwaCegarLoop]: 433 mSDtfsCounter, 4169 mSDsluCounter, 3265 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4169 SdHoareTripleChecker+Valid, 3698 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:10:02,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4169 Valid, 3698 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:10:02,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983 states. [2024-10-31 22:10:02,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 983 to 381. [2024-10-31 22:10:02,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 380 states have (on average 1.5052631578947369) internal successors, (572), 380 states have internal predecessors, (572), 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 22:10:02,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 572 transitions. [2024-10-31 22:10:02,894 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 572 transitions. Word has length 95 [2024-10-31 22:10:02,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:10:02,896 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 572 transitions. [2024-10-31 22:10:02,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 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 22:10:02,896 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 572 transitions. [2024-10-31 22:10:02,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-31 22:10:02,900 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:10:02,900 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] [2024-10-31 22:10:02,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:10:02,902 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:10:02,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:02,903 INFO L85 PathProgramCache]: Analyzing trace with hash 118593259, now seen corresponding path program 1 times [2024-10-31 22:10:02,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:02,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822649331] [2024-10-31 22:10:02,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:02,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:02,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:03,543 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 22:10:03,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:03,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822649331] [2024-10-31 22:10:03,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822649331] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:03,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:03,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 22:10:03,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852941312] [2024-10-31 22:10:03,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:03,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:10:03,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:03,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:10:03,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:10:03,551 INFO L87 Difference]: Start difference. First operand 381 states and 572 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 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 22:10:04,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:10:04,015 INFO L93 Difference]: Finished difference Result 1908 states and 2968 transitions. [2024-10-31 22:10:04,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:10:04,016 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 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 22:10:04,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:10:04,022 INFO L225 Difference]: With dead ends: 1908 [2024-10-31 22:10:04,023 INFO L226 Difference]: Without dead ends: 1622 [2024-10-31 22:10:04,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:10:04,029 INFO L432 NwaCegarLoop]: 728 mSDtfsCounter, 1735 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1735 SdHoareTripleChecker+Valid, 1974 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 22:10:04,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1735 Valid, 1974 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 22:10:04,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2024-10-31 22:10:04,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 1612. [2024-10-31 22:10:04,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1612 states, 1611 states have (on average 1.5524518932340161) internal successors, (2501), 1611 states have internal predecessors, (2501), 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 22:10:04,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 2501 transitions. [2024-10-31 22:10:04,086 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 2501 transitions. Word has length 96 [2024-10-31 22:10:04,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:10:04,087 INFO L471 AbstractCegarLoop]: Abstraction has 1612 states and 2501 transitions. [2024-10-31 22:10:04,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 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 22:10:04,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 2501 transitions. [2024-10-31 22:10:04,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-31 22:10:04,091 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:10:04,092 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] [2024-10-31 22:10:04,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:10:04,092 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:10:04,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:04,093 INFO L85 PathProgramCache]: Analyzing trace with hash 372250457, now seen corresponding path program 1 times [2024-10-31 22:10:04,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:04,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296060583] [2024-10-31 22:10:04,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:04,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:04,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:04,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:04,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:04,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296060583] [2024-10-31 22:10:04,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296060583] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:04,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:04,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:10:04,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665423997] [2024-10-31 22:10:04,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:04,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:10:04,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:04,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:10:04,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:10:04,418 INFO L87 Difference]: Start difference. First operand 1612 states and 2501 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 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 22:10:04,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:10:04,895 INFO L93 Difference]: Finished difference Result 4340 states and 6808 transitions. [2024-10-31 22:10:04,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:10:04,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 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 97 [2024-10-31 22:10:04,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:10:04,911 INFO L225 Difference]: With dead ends: 4340 [2024-10-31 22:10:04,912 INFO L226 Difference]: Without dead ends: 2814 [2024-10-31 22:10:04,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:10:04,919 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 1370 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 22:10:04,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1370 Valid, 346 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 22:10:04,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2814 states. [2024-10-31 22:10:04,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2814 to 2812. [2024-10-31 22:10:04,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2812 states, 2811 states have (on average 1.5613660618996799) internal successors, (4389), 2811 states have internal predecessors, (4389), 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 22:10:04,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2812 states to 2812 states and 4389 transitions. [2024-10-31 22:10:04,992 INFO L78 Accepts]: Start accepts. Automaton has 2812 states and 4389 transitions. Word has length 97 [2024-10-31 22:10:04,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:10:04,993 INFO L471 AbstractCegarLoop]: Abstraction has 2812 states and 4389 transitions. [2024-10-31 22:10:04,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 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 22:10:04,994 INFO L276 IsEmpty]: Start isEmpty. Operand 2812 states and 4389 transitions. [2024-10-31 22:10:05,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-31 22:10:05,002 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:10:05,003 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] [2024-10-31 22:10:05,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:10:05,003 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:10:05,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:05,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1864730935, now seen corresponding path program 1 times [2024-10-31 22:10:05,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:05,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49233215] [2024-10-31 22:10:05,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:05,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:05,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:05,275 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 22:10:05,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:05,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49233215] [2024-10-31 22:10:05,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49233215] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:05,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:05,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:10:05,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793871386] [2024-10-31 22:10:05,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:05,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:10:05,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:05,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:10:05,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:10:05,282 INFO L87 Difference]: Start difference. First operand 2812 states and 4389 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 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 22:10:05,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:10:05,749 INFO L93 Difference]: Finished difference Result 7671 states and 12062 transitions. [2024-10-31 22:10:05,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:10:05,750 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 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 97 [2024-10-31 22:10:05,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:10:05,766 INFO L225 Difference]: With dead ends: 7671 [2024-10-31 22:10:05,766 INFO L226 Difference]: Without dead ends: 5012 [2024-10-31 22:10:05,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:10:05,771 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 1300 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1300 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 22:10:05,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1300 Valid, 350 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 22:10:05,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5012 states. [2024-10-31 22:10:05,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5012 to 5010. [2024-10-31 22:10:05,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5010 states, 5009 states have (on average 1.5641844679576762) internal successors, (7835), 5009 states have internal predecessors, (7835), 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 22:10:05,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5010 states to 5010 states and 7835 transitions. [2024-10-31 22:10:05,883 INFO L78 Accepts]: Start accepts. Automaton has 5010 states and 7835 transitions. Word has length 97 [2024-10-31 22:10:05,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:10:05,883 INFO L471 AbstractCegarLoop]: Abstraction has 5010 states and 7835 transitions. [2024-10-31 22:10:05,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 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 22:10:05,884 INFO L276 IsEmpty]: Start isEmpty. Operand 5010 states and 7835 transitions. [2024-10-31 22:10:05,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-31 22:10:05,887 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:10:05,887 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] [2024-10-31 22:10:05,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:10:05,887 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:10:05,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:05,888 INFO L85 PathProgramCache]: Analyzing trace with hash -196878970, now seen corresponding path program 1 times [2024-10-31 22:10:05,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:05,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61185552] [2024-10-31 22:10:05,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:05,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:05,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:06,078 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 22:10:06,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:06,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61185552] [2024-10-31 22:10:06,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61185552] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:06,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:06,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:10:06,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456456459] [2024-10-31 22:10:06,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:06,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:10:06,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:06,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:10:06,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:10:06,081 INFO L87 Difference]: Start difference. First operand 5010 states and 7835 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 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 22:10:06,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:10:06,541 INFO L93 Difference]: Finished difference Result 14188 states and 22319 transitions. [2024-10-31 22:10:06,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:10:06,541 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 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 97 [2024-10-31 22:10:06,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:10:06,571 INFO L225 Difference]: With dead ends: 14188 [2024-10-31 22:10:06,572 INFO L226 Difference]: Without dead ends: 9372 [2024-10-31 22:10:06,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:10:06,579 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 1282 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1282 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 22:10:06,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1282 Valid, 361 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 22:10:06,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9372 states. [2024-10-31 22:10:06,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9372 to 9370. [2024-10-31 22:10:06,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9370 states, 9369 states have (on average 1.5665492581919096) internal successors, (14677), 9369 states have internal predecessors, (14677), 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 22:10:06,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9370 states to 9370 states and 14677 transitions. [2024-10-31 22:10:06,778 INFO L78 Accepts]: Start accepts. Automaton has 9370 states and 14677 transitions. Word has length 97 [2024-10-31 22:10:06,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:10:06,779 INFO L471 AbstractCegarLoop]: Abstraction has 9370 states and 14677 transitions. [2024-10-31 22:10:06,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 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 22:10:06,779 INFO L276 IsEmpty]: Start isEmpty. Operand 9370 states and 14677 transitions. [2024-10-31 22:10:06,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-31 22:10:06,782 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:10:06,782 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] [2024-10-31 22:10:06,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:10:06,783 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:10:06,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:06,783 INFO L85 PathProgramCache]: Analyzing trace with hash -133707992, now seen corresponding path program 1 times [2024-10-31 22:10:06,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:06,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822479191] [2024-10-31 22:10:06,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:06,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:06,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:07,015 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 22:10:07,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:07,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822479191] [2024-10-31 22:10:07,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822479191] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:07,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:07,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:10:07,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877504352] [2024-10-31 22:10:07,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:07,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:10:07,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:07,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:10:07,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:10:07,017 INFO L87 Difference]: Start difference. First operand 9370 states and 14677 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 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 22:10:07,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:10:07,483 INFO L93 Difference]: Finished difference Result 27466 states and 43127 transitions. [2024-10-31 22:10:07,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:10:07,484 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 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 97 [2024-10-31 22:10:07,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:10:07,536 INFO L225 Difference]: With dead ends: 27466 [2024-10-31 22:10:07,536 INFO L226 Difference]: Without dead ends: 18212 [2024-10-31 22:10:07,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:10:07,550 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 1320 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1320 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 22:10:07,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1320 Valid, 348 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 22:10:07,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18212 states. [2024-10-31 22:10:07,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18212 to 18210. [2024-10-31 22:10:07,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18210 states, 18209 states have (on average 1.5629633697622054) internal successors, (28460), 18209 states have internal predecessors, (28460), 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 22:10:08,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18210 states to 18210 states and 28460 transitions. [2024-10-31 22:10:08,007 INFO L78 Accepts]: Start accepts. Automaton has 18210 states and 28460 transitions. Word has length 97 [2024-10-31 22:10:08,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:10:08,007 INFO L471 AbstractCegarLoop]: Abstraction has 18210 states and 28460 transitions. [2024-10-31 22:10:08,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 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 22:10:08,008 INFO L276 IsEmpty]: Start isEmpty. Operand 18210 states and 28460 transitions. [2024-10-31 22:10:08,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-31 22:10:08,012 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:10:08,012 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] [2024-10-31 22:10:08,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:10:08,012 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:10:08,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:08,013 INFO L85 PathProgramCache]: Analyzing trace with hash 349436362, now seen corresponding path program 1 times [2024-10-31 22:10:08,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:08,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657653408] [2024-10-31 22:10:08,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:08,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:08,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:08,267 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 22:10:08,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:08,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657653408] [2024-10-31 22:10:08,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657653408] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:08,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:08,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:10:08,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67165005] [2024-10-31 22:10:08,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:08,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:10:08,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:08,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:10:08,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:10:08,270 INFO L87 Difference]: Start difference. First operand 18210 states and 28460 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 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 22:10:08,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:10:08,835 INFO L93 Difference]: Finished difference Result 54167 states and 84769 transitions. [2024-10-31 22:10:08,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:10:08,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 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 97 [2024-10-31 22:10:08,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:10:08,915 INFO L225 Difference]: With dead ends: 54167 [2024-10-31 22:10:08,915 INFO L226 Difference]: Without dead ends: 36020 [2024-10-31 22:10:08,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:10:08,929 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 1374 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1374 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:10:08,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1374 Valid, 346 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:10:08,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36020 states. [2024-10-31 22:10:09,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36020 to 36018. [2024-10-31 22:10:09,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36018 states, 36017 states have (on average 1.556403920370936) internal successors, (56057), 36017 states have internal predecessors, (56057), 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 22:10:09,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36018 states to 36018 states and 56057 transitions. [2024-10-31 22:10:09,750 INFO L78 Accepts]: Start accepts. Automaton has 36018 states and 56057 transitions. Word has length 97 [2024-10-31 22:10:09,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:10:09,751 INFO L471 AbstractCegarLoop]: Abstraction has 36018 states and 56057 transitions. [2024-10-31 22:10:09,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 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 22:10:09,752 INFO L276 IsEmpty]: Start isEmpty. Operand 36018 states and 56057 transitions. [2024-10-31 22:10:09,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-31 22:10:09,763 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:10:09,763 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] [2024-10-31 22:10:09,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:10:09,764 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:10:09,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:09,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1386186639, now seen corresponding path program 1 times [2024-10-31 22:10:09,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:09,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514984719] [2024-10-31 22:10:09,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:09,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:09,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:10,170 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 22:10:10,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:10,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514984719] [2024-10-31 22:10:10,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514984719] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:10,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:10,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:10:10,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444226436] [2024-10-31 22:10:10,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:10,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:10:10,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:10,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:10:10,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:10:10,176 INFO L87 Difference]: Start difference. First operand 36018 states and 56057 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 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 22:10:11,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:10:11,005 INFO L93 Difference]: Finished difference Result 102358 states and 159437 transitions. [2024-10-31 22:10:11,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:10:11,006 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 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 98 [2024-10-31 22:10:11,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:10:11,141 INFO L225 Difference]: With dead ends: 102358 [2024-10-31 22:10:11,141 INFO L226 Difference]: Without dead ends: 66419 [2024-10-31 22:10:11,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:10:11,169 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 1407 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1407 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 22:10:11,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1407 Valid, 349 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 22:10:11,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66419 states. [2024-10-31 22:10:12,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66419 to 66417. [2024-10-31 22:10:12,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66417 states, 66416 states have (on average 1.5520808238978558) internal successors, (103083), 66416 states have internal predecessors, (103083), 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 22:10:12,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66417 states to 66417 states and 103083 transitions. [2024-10-31 22:10:12,465 INFO L78 Accepts]: Start accepts. Automaton has 66417 states and 103083 transitions. Word has length 98 [2024-10-31 22:10:12,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:10:12,465 INFO L471 AbstractCegarLoop]: Abstraction has 66417 states and 103083 transitions. [2024-10-31 22:10:12,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 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 22:10:12,466 INFO L276 IsEmpty]: Start isEmpty. Operand 66417 states and 103083 transitions. [2024-10-31 22:10:12,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-31 22:10:12,479 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:10:12,480 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] [2024-10-31 22:10:12,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:10:12,480 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:10:12,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:12,480 INFO L85 PathProgramCache]: Analyzing trace with hash -508006273, now seen corresponding path program 1 times [2024-10-31 22:10:12,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:12,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528945008] [2024-10-31 22:10:12,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:12,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:12,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:13,467 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 22:10:13,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:13,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528945008] [2024-10-31 22:10:13,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528945008] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:13,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:13,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:10:13,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516641826] [2024-10-31 22:10:13,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:13,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:10:13,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:13,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:10:13,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:10:13,471 INFO L87 Difference]: Start difference. First operand 66417 states and 103083 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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 22:10:13,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:10:13,851 INFO L93 Difference]: Finished difference Result 67827 states and 105196 transitions. [2024-10-31 22:10:13,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:10:13,852 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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 98 [2024-10-31 22:10:13,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:10:13,999 INFO L225 Difference]: With dead ends: 67827 [2024-10-31 22:10:14,000 INFO L226 Difference]: Without dead ends: 67825 [2024-10-31 22:10:14,011 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:10:14,018 INFO L432 NwaCegarLoop]: 341 mSDtfsCounter, 0 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:10:14,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1354 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:10:14,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67825 states. [2024-10-31 22:10:14,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67825 to 67825. [2024-10-31 22:10:14,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67825 states, 67824 states have (on average 1.5406198395848076) internal successors, (104491), 67824 states have internal predecessors, (104491), 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 22:10:15,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67825 states to 67825 states and 104491 transitions. [2024-10-31 22:10:15,329 INFO L78 Accepts]: Start accepts. Automaton has 67825 states and 104491 transitions. Word has length 98 [2024-10-31 22:10:15,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:10:15,330 INFO L471 AbstractCegarLoop]: Abstraction has 67825 states and 104491 transitions. [2024-10-31 22:10:15,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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 22:10:15,330 INFO L276 IsEmpty]: Start isEmpty. Operand 67825 states and 104491 transitions. [2024-10-31 22:10:15,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-31 22:10:15,370 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:10:15,370 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] [2024-10-31 22:10:15,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:10:15,371 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:10:15,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:15,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1758747548, now seen corresponding path program 1 times [2024-10-31 22:10:15,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:15,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026705583] [2024-10-31 22:10:15,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:15,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:15,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:16,012 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 22:10:16,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:16,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026705583] [2024-10-31 22:10:16,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026705583] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:16,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:16,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-31 22:10:16,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754635770] [2024-10-31 22:10:16,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:16,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:10:16,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:16,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:10:16,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:10:16,019 INFO L87 Difference]: Start difference. First operand 67825 states and 104491 transitions. Second operand has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 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 22:10:17,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:10:17,703 INFO L93 Difference]: Finished difference Result 140864 states and 215731 transitions. [2024-10-31 22:10:17,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-31 22:10:17,704 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 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 22:10:17,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:10:17,844 INFO L225 Difference]: With dead ends: 140864 [2024-10-31 22:10:17,844 INFO L226 Difference]: Without dead ends: 96017 [2024-10-31 22:10:17,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-10-31 22:10:17,876 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 2146 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2146 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-31 22:10:17,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2146 Valid, 1124 Invalid, 874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-31 22:10:17,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96017 states. [2024-10-31 22:10:19,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96017 to 68250. [2024-10-31 22:10:19,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68250 states, 68249 states have (on average 1.539568345323741) internal successors, (105074), 68249 states have internal predecessors, (105074), 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 22:10:19,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68250 states to 68250 states and 105074 transitions. [2024-10-31 22:10:19,479 INFO L78 Accepts]: Start accepts. Automaton has 68250 states and 105074 transitions. Word has length 99 [2024-10-31 22:10:19,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:10:19,480 INFO L471 AbstractCegarLoop]: Abstraction has 68250 states and 105074 transitions. [2024-10-31 22:10:19,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 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 22:10:19,480 INFO L276 IsEmpty]: Start isEmpty. Operand 68250 states and 105074 transitions. [2024-10-31 22:10:19,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-31 22:10:19,496 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:10:19,496 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] [2024-10-31 22:10:19,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:10:19,496 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:10:19,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:19,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1890386908, now seen corresponding path program 1 times [2024-10-31 22:10:19,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:19,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422418854] [2024-10-31 22:10:19,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:19,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:19,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:20,590 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 22:10:20,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:20,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422418854] [2024-10-31 22:10:20,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422418854] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:20,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:20,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-31 22:10:20,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599426722] [2024-10-31 22:10:20,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:20,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:10:20,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:20,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:10:20,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:10:20,595 INFO L87 Difference]: Start difference. First operand 68250 states and 105074 transitions. Second operand has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 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 22:10:22,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:10:22,202 INFO L93 Difference]: Finished difference Result 125543 states and 191838 transitions. [2024-10-31 22:10:22,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-31 22:10:22,202 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 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 22:10:22,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:10:22,448 INFO L225 Difference]: With dead ends: 125543 [2024-10-31 22:10:22,451 INFO L226 Difference]: Without dead ends: 105381 [2024-10-31 22:10:22,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-10-31 22:10:22,496 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 1729 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1729 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-31 22:10:22,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1729 Valid, 1419 Invalid, 1082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1071 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-31 22:10:22,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105381 states. [2024-10-31 22:10:23,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105381 to 69219. [2024-10-31 22:10:23,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69219 states, 69218 states have (on average 1.538646016932012) internal successors, (106502), 69218 states have internal predecessors, (106502), 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 22:10:24,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69219 states to 69219 states and 106502 transitions. [2024-10-31 22:10:24,427 INFO L78 Accepts]: Start accepts. Automaton has 69219 states and 106502 transitions. Word has length 99 [2024-10-31 22:10:24,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:10:24,427 INFO L471 AbstractCegarLoop]: Abstraction has 69219 states and 106502 transitions. [2024-10-31 22:10:24,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 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 22:10:24,427 INFO L276 IsEmpty]: Start isEmpty. Operand 69219 states and 106502 transitions. [2024-10-31 22:10:24,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-31 22:10:24,440 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:10:24,440 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] [2024-10-31 22:10:24,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:10:24,441 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:10:24,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:24,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1637618692, now seen corresponding path program 1 times [2024-10-31 22:10:24,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:24,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000540530] [2024-10-31 22:10:24,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:24,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:24,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:24,870 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 22:10:24,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:24,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000540530] [2024-10-31 22:10:24,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000540530] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:24,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:24,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-31 22:10:24,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262614572] [2024-10-31 22:10:24,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:24,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:10:24,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:24,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:10:24,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:10:24,872 INFO L87 Difference]: Start difference. First operand 69219 states and 106502 transitions. Second operand has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 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)