./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_6ed468f9-1659-44e2-9db7-5169fc055a0e/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ed468f9-1659-44e2-9db7-5169fc055a0e/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ed468f9-1659-44e2-9db7-5169fc055a0e/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ed468f9-1659-44e2-9db7-5169fc055a0e/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ed468f9-1659-44e2-9db7-5169fc055a0e/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ed468f9-1659-44e2-9db7-5169fc055a0e/bin/uautomizer-verify-jihMAELWvX --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 a6374c4e2c0297c3123cfdf0954bdc9362f3fda9d9942785abd7924d756030a0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:47:11,337 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:47:11,423 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ed468f9-1659-44e2-9db7-5169fc055a0e/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 16:47:11,428 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:47:11,428 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:47:11,464 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:47:11,467 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:47:11,468 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:47:11,469 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:47:11,471 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:47:11,471 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:47:11,471 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:47:11,472 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:47:11,476 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:47:11,476 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:47:11,477 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:47:11,477 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:47:11,477 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:47:11,478 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:47:11,478 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:47:11,478 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:47:11,482 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:47:11,483 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:47:11,483 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:47:11,483 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:47:11,484 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:47:11,484 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:47:11,484 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:47:11,485 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:47:11,485 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:47:11,486 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:47:11,487 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:47:11,487 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:47:11,488 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:47:11,489 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:47:11,489 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:47:11,489 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:47:11,489 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:47:11,490 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:47:11,490 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:47:11,490 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:47:11,491 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:47:11,491 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_6ed468f9-1659-44e2-9db7-5169fc055a0e/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ed468f9-1659-44e2-9db7-5169fc055a0e/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6374c4e2c0297c3123cfdf0954bdc9362f3fda9d9942785abd7924d756030a0 [2024-11-08 16:47:11,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:47:11,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:47:11,782 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:47:11,784 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:47:11,785 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:47:11,787 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ed468f9-1659-44e2-9db7-5169fc055a0e/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c Unable to find full path for "g++" [2024-11-08 16:47:13,814 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:47:14,038 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:47:14,039 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ed468f9-1659-44e2-9db7-5169fc055a0e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-08 16:47:14,053 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ed468f9-1659-44e2-9db7-5169fc055a0e/bin/uautomizer-verify-jihMAELWvX/data/aa31152e6/54cefae2788a4ed3924c42adf2045bd2/FLAGab42c710b [2024-11-08 16:47:14,066 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ed468f9-1659-44e2-9db7-5169fc055a0e/bin/uautomizer-verify-jihMAELWvX/data/aa31152e6/54cefae2788a4ed3924c42adf2045bd2 [2024-11-08 16:47:14,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:47:14,070 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:47:14,071 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:47:14,072 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:47:14,078 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:47:14,079 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:47:14" (1/1) ... [2024-11-08 16:47:14,081 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e58fdd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:47:14, skipping insertion in model container [2024-11-08 16:47:14,081 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:47:14" (1/1) ... [2024-11-08 16:47:14,135 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:47:14,558 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ed468f9-1659-44e2-9db7-5169fc055a0e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[9092,9105] [2024-11-08 16:47:14,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:47:14,644 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:47:14,727 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ed468f9-1659-44e2-9db7-5169fc055a0e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[9092,9105] [2024-11-08 16:47:14,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:47:14,797 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:47:14,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:47:14 WrapperNode [2024-11-08 16:47:14,798 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:47:14,799 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:47:14,799 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:47:14,800 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:47:14,808 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:47:14" (1/1) ... [2024-11-08 16:47:14,820 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:47:14" (1/1) ... [2024-11-08 16:47:14,882 INFO L138 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 794 [2024-11-08 16:47:14,883 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:47:14,883 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:47:14,884 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:47:14,884 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:47:14,897 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:47:14" (1/1) ... [2024-11-08 16:47:14,897 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:47:14" (1/1) ... [2024-11-08 16:47:14,901 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:47:14" (1/1) ... [2024-11-08 16:47:14,924 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 16:47:14,925 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:47:14" (1/1) ... [2024-11-08 16:47:14,925 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:47:14" (1/1) ... [2024-11-08 16:47:14,945 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:47:14" (1/1) ... [2024-11-08 16:47:14,962 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:47:14" (1/1) ... [2024-11-08 16:47:14,964 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:47:14" (1/1) ... [2024-11-08 16:47:14,967 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:47:14" (1/1) ... [2024-11-08 16:47:14,976 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:47:14,977 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:47:14,977 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:47:14,977 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:47:14,978 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:47:14" (1/1) ... [2024-11-08 16:47:14,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:47:14,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ed468f9-1659-44e2-9db7-5169fc055a0e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:47:15,014 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ed468f9-1659-44e2-9db7-5169fc055a0e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:47:15,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ed468f9-1659-44e2-9db7-5169fc055a0e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:47:15,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:47:15,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:47:15,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:47:15,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:47:15,246 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:47:15,248 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:47:16,244 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2024-11-08 16:47:16,244 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:47:16,270 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:47:16,270 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 16:47:16,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:47:16 BoogieIcfgContainer [2024-11-08 16:47:16,271 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:47:16,273 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:47:16,273 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:47:16,277 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:47:16,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:47:14" (1/3) ... [2024-11-08 16:47:16,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@396e7c4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:47:16, skipping insertion in model container [2024-11-08 16:47:16,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:47:14" (2/3) ... [2024-11-08 16:47:16,279 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@396e7c4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:47:16, skipping insertion in model container [2024-11-08 16:47:16,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:47:16" (3/3) ... [2024-11-08 16:47:16,281 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-08 16:47:16,306 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:47:16,306 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 16:47:16,408 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:47:16,418 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;@58a2747e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:47:16,418 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 16:47:16,425 INFO L276 IsEmpty]: Start isEmpty. Operand has 177 states, 175 states have (on average 1.76) internal successors, (308), 176 states have internal predecessors, (308), 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) [2024-11-08 16:47:16,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-08 16:47:16,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:16,439 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] [2024-11-08 16:47:16,440 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:47:16,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:16,447 INFO L85 PathProgramCache]: Analyzing trace with hash -822713823, now seen corresponding path program 1 times [2024-11-08 16:47:16,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:16,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264619607] [2024-11-08 16:47:16,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:16,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:16,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:17,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:17,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:17,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264619607] [2024-11-08 16:47:17,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264619607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:17,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:17,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:47:17,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035818401] [2024-11-08 16:47:17,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:17,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:47:17,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:17,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:47:17,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:47:17,428 INFO L87 Difference]: Start difference. First operand has 177 states, 175 states have (on average 1.76) internal successors, (308), 176 states have internal predecessors, (308), 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 11.25) internal successors, (90), 8 states have internal predecessors, (90), 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) [2024-11-08 16:47:18,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:18,147 INFO L93 Difference]: Finished difference Result 1131 states and 1831 transitions. [2024-11-08 16:47:18,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 16:47:18,151 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 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 90 [2024-11-08 16:47:18,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:18,181 INFO L225 Difference]: With dead ends: 1131 [2024-11-08 16:47:18,181 INFO L226 Difference]: Without dead ends: 1036 [2024-11-08 16:47:18,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-11-08 16:47:18,191 INFO L432 NwaCegarLoop]: 615 mSDtfsCounter, 2265 mSDsluCounter, 2485 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2265 SdHoareTripleChecker+Valid, 3100 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:18,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2265 Valid, 3100 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 16:47:18,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2024-11-08 16:47:18,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 269. [2024-11-08 16:47:18,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 268 states have (on average 1.458955223880597) internal successors, (391), 268 states have internal predecessors, (391), 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) [2024-11-08 16:47:18,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 391 transitions. [2024-11-08 16:47:18,281 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 391 transitions. Word has length 90 [2024-11-08 16:47:18,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:18,282 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 391 transitions. [2024-11-08 16:47:18,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 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) [2024-11-08 16:47:18,282 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 391 transitions. [2024-11-08 16:47:18,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 16:47:18,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:18,287 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] [2024-11-08 16:47:18,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:47:18,287 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:47:18,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:18,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1483332975, now seen corresponding path program 1 times [2024-11-08 16:47:18,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:18,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819735082] [2024-11-08 16:47:18,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:18,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:18,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:18,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:18,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:18,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819735082] [2024-11-08 16:47:18,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819735082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:18,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:18,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:47:18,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617677413] [2024-11-08 16:47:18,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:18,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:47:18,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:18,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:47:18,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:47:18,785 INFO L87 Difference]: Start difference. First operand 269 states and 391 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2024-11-08 16:47:19,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:19,159 INFO L93 Difference]: Finished difference Result 1235 states and 1925 transitions. [2024-11-08 16:47:19,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:47:19,161 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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 92 [2024-11-08 16:47:19,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:19,168 INFO L225 Difference]: With dead ends: 1235 [2024-11-08 16:47:19,169 INFO L226 Difference]: Without dead ends: 1095 [2024-11-08 16:47:19,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:47:19,173 INFO L432 NwaCegarLoop]: 576 mSDtfsCounter, 1604 mSDsluCounter, 1278 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1604 SdHoareTripleChecker+Valid, 1854 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:19,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1604 Valid, 1854 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:47:19,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2024-11-08 16:47:19,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 428. [2024-11-08 16:47:19,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 427 states have (on average 1.5105386416861826) internal successors, (645), 427 states have internal predecessors, (645), 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) [2024-11-08 16:47:19,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 645 transitions. [2024-11-08 16:47:19,219 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 645 transitions. Word has length 92 [2024-11-08 16:47:19,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:19,220 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 645 transitions. [2024-11-08 16:47:19,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2024-11-08 16:47:19,221 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 645 transitions. [2024-11-08 16:47:19,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 16:47:19,224 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:19,224 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] [2024-11-08 16:47:19,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:47:19,225 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:47:19,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:19,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1617802447, now seen corresponding path program 1 times [2024-11-08 16:47:19,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:19,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11763200] [2024-11-08 16:47:19,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:19,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:19,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:19,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:19,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11763200] [2024-11-08 16:47:19,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11763200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:19,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:19,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:47:19,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873765355] [2024-11-08 16:47:19,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:19,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:47:19,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:19,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:47:19,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:47:19,561 INFO L87 Difference]: Start difference. First operand 428 states and 645 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2024-11-08 16:47:19,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:19,845 INFO L93 Difference]: Finished difference Result 1389 states and 2171 transitions. [2024-11-08 16:47:19,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:47:19,846 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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 92 [2024-11-08 16:47:19,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:19,850 INFO L225 Difference]: With dead ends: 1389 [2024-11-08 16:47:19,851 INFO L226 Difference]: Without dead ends: 1249 [2024-11-08 16:47:19,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:47:19,853 INFO L432 NwaCegarLoop]: 450 mSDtfsCounter, 1907 mSDsluCounter, 1141 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1907 SdHoareTripleChecker+Valid, 1591 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:19,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1907 Valid, 1591 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:47:19,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2024-11-08 16:47:19,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 641. [2024-11-08 16:47:19,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 640 states have (on average 1.5390625) internal successors, (985), 640 states have internal predecessors, (985), 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) [2024-11-08 16:47:19,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 985 transitions. [2024-11-08 16:47:19,873 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 985 transitions. Word has length 92 [2024-11-08 16:47:19,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:19,873 INFO L471 AbstractCegarLoop]: Abstraction has 641 states and 985 transitions. [2024-11-08 16:47:19,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2024-11-08 16:47:19,874 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 985 transitions. [2024-11-08 16:47:19,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 16:47:19,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:19,875 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] [2024-11-08 16:47:19,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:47:19,876 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:47:19,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:19,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1906062023, now seen corresponding path program 1 times [2024-11-08 16:47:19,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:19,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572140137] [2024-11-08 16:47:19,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:19,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:19,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:20,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:20,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:20,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572140137] [2024-11-08 16:47:20,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572140137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:20,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:20,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:47:20,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307399232] [2024-11-08 16:47:20,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:20,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:47:20,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:20,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:47:20,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:47:20,178 INFO L87 Difference]: Start difference. First operand 641 states and 985 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2024-11-08 16:47:20,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:20,435 INFO L93 Difference]: Finished difference Result 1528 states and 2393 transitions. [2024-11-08 16:47:20,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:47:20,435 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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 92 [2024-11-08 16:47:20,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:20,440 INFO L225 Difference]: With dead ends: 1528 [2024-11-08 16:47:20,440 INFO L226 Difference]: Without dead ends: 1388 [2024-11-08 16:47:20,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:47:20,443 INFO L432 NwaCegarLoop]: 340 mSDtfsCounter, 2020 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2020 SdHoareTripleChecker+Valid, 1577 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:20,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2020 Valid, 1577 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:47:20,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2024-11-08 16:47:20,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 780. [2024-11-08 16:47:20,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 779 states have (on average 1.5494223363286264) internal successors, (1207), 779 states have internal predecessors, (1207), 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) [2024-11-08 16:47:20,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1207 transitions. [2024-11-08 16:47:20,464 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1207 transitions. Word has length 92 [2024-11-08 16:47:20,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:20,465 INFO L471 AbstractCegarLoop]: Abstraction has 780 states and 1207 transitions. [2024-11-08 16:47:20,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2024-11-08 16:47:20,465 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1207 transitions. [2024-11-08 16:47:20,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 16:47:20,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:20,467 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] [2024-11-08 16:47:20,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:47:20,468 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:47:20,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:20,469 INFO L85 PathProgramCache]: Analyzing trace with hash 614894983, now seen corresponding path program 1 times [2024-11-08 16:47:20,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:20,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544662215] [2024-11-08 16:47:20,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:20,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:20,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:20,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:20,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544662215] [2024-11-08 16:47:20,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544662215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:20,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:20,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:47:20,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242832130] [2024-11-08 16:47:20,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:20,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:47:20,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:20,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:47:20,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:47:20,570 INFO L87 Difference]: Start difference. First operand 780 states and 1207 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2024-11-08 16:47:20,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:20,621 INFO L93 Difference]: Finished difference Result 1968 states and 3097 transitions. [2024-11-08 16:47:20,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:47:20,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 92 [2024-11-08 16:47:20,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:20,627 INFO L225 Difference]: With dead ends: 1968 [2024-11-08 16:47:20,627 INFO L226 Difference]: Without dead ends: 1345 [2024-11-08 16:47:20,628 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:47:20,629 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 99 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:20,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 559 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:47:20,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1345 states. [2024-11-08 16:47:20,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1345 to 1325. [2024-11-08 16:47:20,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1325 states, 1324 states have (on average 1.5521148036253776) internal successors, (2055), 1324 states have internal predecessors, (2055), 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) [2024-11-08 16:47:20,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 2055 transitions. [2024-11-08 16:47:20,661 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 2055 transitions. Word has length 92 [2024-11-08 16:47:20,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:20,661 INFO L471 AbstractCegarLoop]: Abstraction has 1325 states and 2055 transitions. [2024-11-08 16:47:20,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2024-11-08 16:47:20,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 2055 transitions. [2024-11-08 16:47:20,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 16:47:20,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:20,663 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] [2024-11-08 16:47:20,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:47:20,664 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:47:20,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:20,664 INFO L85 PathProgramCache]: Analyzing trace with hash 858972646, now seen corresponding path program 1 times [2024-11-08 16:47:20,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:20,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362258542] [2024-11-08 16:47:20,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:20,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:20,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:20,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:20,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:20,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362258542] [2024-11-08 16:47:20,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362258542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:20,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:20,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:47:20,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928328225] [2024-11-08 16:47:20,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:20,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:47:20,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:20,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:47:20,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:47:20,771 INFO L87 Difference]: Start difference. First operand 1325 states and 2055 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2024-11-08 16:47:20,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:20,862 INFO L93 Difference]: Finished difference Result 2495 states and 3900 transitions. [2024-11-08 16:47:20,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:47:20,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 92 [2024-11-08 16:47:20,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:20,868 INFO L225 Difference]: With dead ends: 2495 [2024-11-08 16:47:20,868 INFO L226 Difference]: Without dead ends: 1327 [2024-11-08 16:47:20,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:47:20,870 INFO L432 NwaCegarLoop]: 339 mSDtfsCounter, 125 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:20,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 541 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:47:20,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1327 states. [2024-11-08 16:47:20,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1327 to 1325. [2024-11-08 16:47:20,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1325 states, 1324 states have (on average 1.5483383685800605) internal successors, (2050), 1324 states have internal predecessors, (2050), 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) [2024-11-08 16:47:20,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 2050 transitions. [2024-11-08 16:47:20,900 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 2050 transitions. Word has length 92 [2024-11-08 16:47:20,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:20,901 INFO L471 AbstractCegarLoop]: Abstraction has 1325 states and 2050 transitions. [2024-11-08 16:47:20,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2024-11-08 16:47:20,901 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 2050 transitions. [2024-11-08 16:47:20,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 16:47:20,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:20,902 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:47:20,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:47:20,903 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:47:20,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:20,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1799043301, now seen corresponding path program 1 times [2024-11-08 16:47:20,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:20,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308499310] [2024-11-08 16:47:20,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:20,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:20,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:21,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:21,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:21,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308499310] [2024-11-08 16:47:21,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308499310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:21,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:21,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:47:21,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410523211] [2024-11-08 16:47:21,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:21,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:47:21,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:21,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:47:21,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:47:21,158 INFO L87 Difference]: Start difference. First operand 1325 states and 2050 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2024-11-08 16:47:21,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:21,481 INFO L93 Difference]: Finished difference Result 2943 states and 4594 transitions. [2024-11-08 16:47:21,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:47:21,482 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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 92 [2024-11-08 16:47:21,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:21,490 INFO L225 Difference]: With dead ends: 2943 [2024-11-08 16:47:21,490 INFO L226 Difference]: Without dead ends: 2682 [2024-11-08 16:47:21,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:47:21,492 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 1553 mSDsluCounter, 1556 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1553 SdHoareTripleChecker+Valid, 2014 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:21,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1553 Valid, 2014 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:47:21,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2682 states. [2024-11-08 16:47:21,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2682 to 1595. [2024-11-08 16:47:21,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1595 states, 1594 states have (on average 1.552697616060226) internal successors, (2475), 1594 states have internal predecessors, (2475), 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) [2024-11-08 16:47:21,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1595 states to 1595 states and 2475 transitions. [2024-11-08 16:47:21,537 INFO L78 Accepts]: Start accepts. Automaton has 1595 states and 2475 transitions. Word has length 92 [2024-11-08 16:47:21,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:21,537 INFO L471 AbstractCegarLoop]: Abstraction has 1595 states and 2475 transitions. [2024-11-08 16:47:21,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2024-11-08 16:47:21,538 INFO L276 IsEmpty]: Start isEmpty. Operand 1595 states and 2475 transitions. [2024-11-08 16:47:21,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 16:47:21,539 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:21,539 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] [2024-11-08 16:47:21,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 16:47:21,540 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:47:21,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:21,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1982868957, now seen corresponding path program 1 times [2024-11-08 16:47:21,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:21,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132890883] [2024-11-08 16:47:21,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:21,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:21,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:21,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:21,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:21,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132890883] [2024-11-08 16:47:21,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132890883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:21,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:21,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:47:21,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14314311] [2024-11-08 16:47:21,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:21,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:47:21,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:21,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:47:21,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:47:21,801 INFO L87 Difference]: Start difference. First operand 1595 states and 2475 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2024-11-08 16:47:22,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:22,091 INFO L93 Difference]: Finished difference Result 3213 states and 5019 transitions. [2024-11-08 16:47:22,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:47:22,092 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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 92 [2024-11-08 16:47:22,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:22,101 INFO L225 Difference]: With dead ends: 3213 [2024-11-08 16:47:22,101 INFO L226 Difference]: Without dead ends: 2952 [2024-11-08 16:47:22,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:47:22,103 INFO L432 NwaCegarLoop]: 467 mSDtfsCounter, 1751 mSDsluCounter, 1816 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1751 SdHoareTripleChecker+Valid, 2283 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:22,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1751 Valid, 2283 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:47:22,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2024-11-08 16:47:22,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 1870. [2024-11-08 16:47:22,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1870 states, 1869 states have (on average 1.555912252541466) internal successors, (2908), 1869 states have internal predecessors, (2908), 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) [2024-11-08 16:47:22,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1870 states to 1870 states and 2908 transitions. [2024-11-08 16:47:22,159 INFO L78 Accepts]: Start accepts. Automaton has 1870 states and 2908 transitions. Word has length 92 [2024-11-08 16:47:22,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:22,159 INFO L471 AbstractCegarLoop]: Abstraction has 1870 states and 2908 transitions. [2024-11-08 16:47:22,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2024-11-08 16:47:22,160 INFO L276 IsEmpty]: Start isEmpty. Operand 1870 states and 2908 transitions. [2024-11-08 16:47:22,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 16:47:22,161 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:22,161 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] [2024-11-08 16:47:22,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 16:47:22,162 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:47:22,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:22,162 INFO L85 PathProgramCache]: Analyzing trace with hash -820597111, now seen corresponding path program 1 times [2024-11-08 16:47:22,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:22,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893239130] [2024-11-08 16:47:22,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:22,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:22,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:22,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:22,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:22,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893239130] [2024-11-08 16:47:22,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893239130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:22,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:22,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:47:22,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485066083] [2024-11-08 16:47:22,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:22,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:47:22,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:22,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:47:22,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:47:22,418 INFO L87 Difference]: Start difference. First operand 1870 states and 2908 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2024-11-08 16:47:22,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:22,736 INFO L93 Difference]: Finished difference Result 3493 states and 5460 transitions. [2024-11-08 16:47:22,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:47:22,737 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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 92 [2024-11-08 16:47:22,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:22,748 INFO L225 Difference]: With dead ends: 3493 [2024-11-08 16:47:22,748 INFO L226 Difference]: Without dead ends: 3232 [2024-11-08 16:47:22,750 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:47:22,752 INFO L432 NwaCegarLoop]: 383 mSDtfsCounter, 2003 mSDsluCounter, 1541 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2003 SdHoareTripleChecker+Valid, 1924 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:22,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2003 Valid, 1924 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:47:22,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3232 states. [2024-11-08 16:47:22,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3232 to 2150. [2024-11-08 16:47:22,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2150 states, 2149 states have (on average 1.5583992554676593) internal successors, (3349), 2149 states have internal predecessors, (3349), 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) [2024-11-08 16:47:22,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 3349 transitions. [2024-11-08 16:47:22,825 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 3349 transitions. Word has length 92 [2024-11-08 16:47:22,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:22,825 INFO L471 AbstractCegarLoop]: Abstraction has 2150 states and 3349 transitions. [2024-11-08 16:47:22,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2024-11-08 16:47:22,826 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 3349 transitions. [2024-11-08 16:47:22,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 16:47:22,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:22,827 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] [2024-11-08 16:47:22,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 16:47:22,828 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:47:22,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:22,828 INFO L85 PathProgramCache]: Analyzing trace with hash 2115523499, now seen corresponding path program 1 times [2024-11-08 16:47:22,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:22,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282554460] [2024-11-08 16:47:22,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:22,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:22,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:22,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:22,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:22,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282554460] [2024-11-08 16:47:22,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282554460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:22,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:22,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:47:22,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458372636] [2024-11-08 16:47:22,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:22,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:47:22,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:22,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:47:22,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:47:22,982 INFO L87 Difference]: Start difference. First operand 2150 states and 3349 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 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) [2024-11-08 16:47:23,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:23,234 INFO L93 Difference]: Finished difference Result 4250 states and 6646 transitions. [2024-11-08 16:47:23,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:47:23,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 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 93 [2024-11-08 16:47:23,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:23,242 INFO L225 Difference]: With dead ends: 4250 [2024-11-08 16:47:23,242 INFO L226 Difference]: Without dead ends: 2150 [2024-11-08 16:47:23,246 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 [2024-11-08 16:47:23,246 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 649 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:23,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 140 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:47:23,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2150 states. [2024-11-08 16:47:23,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2150 to 2150. [2024-11-08 16:47:23,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2150 states, 2149 states have (on average 1.5439739413680782) internal successors, (3318), 2149 states have internal predecessors, (3318), 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) [2024-11-08 16:47:23,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 3318 transitions. [2024-11-08 16:47:23,319 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 3318 transitions. Word has length 93 [2024-11-08 16:47:23,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:23,320 INFO L471 AbstractCegarLoop]: Abstraction has 2150 states and 3318 transitions. [2024-11-08 16:47:23,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 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) [2024-11-08 16:47:23,320 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 3318 transitions. [2024-11-08 16:47:23,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 16:47:23,322 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:23,322 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] [2024-11-08 16:47:23,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 16:47:23,323 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:47:23,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:23,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1622736142, now seen corresponding path program 1 times [2024-11-08 16:47:23,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:23,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925969259] [2024-11-08 16:47:23,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:23,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:23,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:23,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:23,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:23,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925969259] [2024-11-08 16:47:23,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925969259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:23,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:23,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:47:23,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178787597] [2024-11-08 16:47:23,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:23,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:47:23,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:23,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:47:23,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:47:23,509 INFO L87 Difference]: Start difference. First operand 2150 states and 3318 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 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) [2024-11-08 16:47:23,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:23,715 INFO L93 Difference]: Finished difference Result 4254 states and 6589 transitions. [2024-11-08 16:47:23,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:47:23,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 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 94 [2024-11-08 16:47:23,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:23,722 INFO L225 Difference]: With dead ends: 4254 [2024-11-08 16:47:23,722 INFO L226 Difference]: Without dead ends: 2150 [2024-11-08 16:47:23,725 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 [2024-11-08 16:47:23,725 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 654 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:23,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 132 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:47:23,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2150 states. [2024-11-08 16:47:23,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2150 to 2150. [2024-11-08 16:47:23,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2150 states, 2149 states have (on average 1.529548627268497) internal successors, (3287), 2149 states have internal predecessors, (3287), 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) [2024-11-08 16:47:23,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 3287 transitions. [2024-11-08 16:47:23,778 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 3287 transitions. Word has length 94 [2024-11-08 16:47:23,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:23,778 INFO L471 AbstractCegarLoop]: Abstraction has 2150 states and 3287 transitions. [2024-11-08 16:47:23,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 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) [2024-11-08 16:47:23,779 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 3287 transitions. [2024-11-08 16:47:23,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 16:47:23,780 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:23,780 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] [2024-11-08 16:47:23,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 16:47:23,781 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:47:23,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:23,781 INFO L85 PathProgramCache]: Analyzing trace with hash -514732393, now seen corresponding path program 1 times [2024-11-08 16:47:23,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:23,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952009101] [2024-11-08 16:47:23,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:23,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:23,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:23,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:23,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:23,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952009101] [2024-11-08 16:47:23,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952009101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:23,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:23,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:47:23,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646826911] [2024-11-08 16:47:23,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:23,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:47:23,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:23,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:47:23,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:47:23,970 INFO L87 Difference]: Start difference. First operand 2150 states and 3287 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 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) [2024-11-08 16:47:24,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:24,154 INFO L93 Difference]: Finished difference Result 4238 states and 6509 transitions. [2024-11-08 16:47:24,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:47:24,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 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 [2024-11-08 16:47:24,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:24,161 INFO L225 Difference]: With dead ends: 4238 [2024-11-08 16:47:24,161 INFO L226 Difference]: Without dead ends: 2150 [2024-11-08 16:47:24,163 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 [2024-11-08 16:47:24,164 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 602 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:24,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 164 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:47:24,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2150 states. [2024-11-08 16:47:24,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2150 to 2150. [2024-11-08 16:47:24,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2150 states, 2149 states have (on average 1.5151233131689157) internal successors, (3256), 2149 states have internal predecessors, (3256), 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) [2024-11-08 16:47:24,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 3256 transitions. [2024-11-08 16:47:24,212 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 3256 transitions. Word has length 95 [2024-11-08 16:47:24,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:24,213 INFO L471 AbstractCegarLoop]: Abstraction has 2150 states and 3256 transitions. [2024-11-08 16:47:24,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 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) [2024-11-08 16:47:24,213 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 3256 transitions. [2024-11-08 16:47:24,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-08 16:47:24,214 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:24,214 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] [2024-11-08 16:47:24,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 16:47:24,215 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:47:24,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:24,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1777645674, now seen corresponding path program 1 times [2024-11-08 16:47:24,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:24,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393004327] [2024-11-08 16:47:24,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:24,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:24,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:24,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:24,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:24,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393004327] [2024-11-08 16:47:24,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393004327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:24,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:24,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:47:24,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631742485] [2024-11-08 16:47:24,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:24,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:47:24,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:24,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:47:24,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:47:24,373 INFO L87 Difference]: Start difference. First operand 2150 states and 3256 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 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) [2024-11-08 16:47:24,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:24,558 INFO L93 Difference]: Finished difference Result 4242 states and 6452 transitions. [2024-11-08 16:47:24,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:47:24,559 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 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 [2024-11-08 16:47:24,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:24,565 INFO L225 Difference]: With dead ends: 4242 [2024-11-08 16:47:24,566 INFO L226 Difference]: Without dead ends: 2150 [2024-11-08 16:47:24,568 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 [2024-11-08 16:47:24,568 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 607 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 607 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:24,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [607 Valid, 156 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:47:24,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2150 states. [2024-11-08 16:47:24,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2150 to 2150. [2024-11-08 16:47:24,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2150 states, 2149 states have (on average 1.5006979990693345) internal successors, (3225), 2149 states have internal predecessors, (3225), 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) [2024-11-08 16:47:24,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 3225 transitions. [2024-11-08 16:47:24,613 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 3225 transitions. Word has length 96 [2024-11-08 16:47:24,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:24,614 INFO L471 AbstractCegarLoop]: Abstraction has 2150 states and 3225 transitions. [2024-11-08 16:47:24,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 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) [2024-11-08 16:47:24,614 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 3225 transitions. [2024-11-08 16:47:24,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-08 16:47:24,615 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:24,616 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] [2024-11-08 16:47:24,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 16:47:24,616 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:47:24,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:24,617 INFO L85 PathProgramCache]: Analyzing trace with hash -341822485, now seen corresponding path program 1 times [2024-11-08 16:47:24,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:24,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003387697] [2024-11-08 16:47:24,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:24,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:24,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:24,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:24,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:24,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003387697] [2024-11-08 16:47:24,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003387697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:24,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:24,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:47:24,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146294517] [2024-11-08 16:47:24,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:24,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:47:24,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:24,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:47:24,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:47:24,778 INFO L87 Difference]: Start difference. First operand 2150 states and 3225 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) [2024-11-08 16:47:24,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:24,961 INFO L93 Difference]: Finished difference Result 4246 states and 6395 transitions. [2024-11-08 16:47:24,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:47:24,962 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 [2024-11-08 16:47:24,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:24,968 INFO L225 Difference]: With dead ends: 4246 [2024-11-08 16:47:24,968 INFO L226 Difference]: Without dead ends: 2150 [2024-11-08 16:47:24,970 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 [2024-11-08 16:47:24,971 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 612 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:24,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 148 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:47:24,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2150 states. [2024-11-08 16:47:25,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2150 to 2150. [2024-11-08 16:47:25,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2150 states, 2149 states have (on average 1.4862726849697534) internal successors, (3194), 2149 states have internal predecessors, (3194), 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) [2024-11-08 16:47:25,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 3194 transitions. [2024-11-08 16:47:25,019 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 3194 transitions. Word has length 97 [2024-11-08 16:47:25,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:25,019 INFO L471 AbstractCegarLoop]: Abstraction has 2150 states and 3194 transitions. [2024-11-08 16:47:25,019 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) [2024-11-08 16:47:25,020 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 3194 transitions. [2024-11-08 16:47:25,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-08 16:47:25,021 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:25,021 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] [2024-11-08 16:47:25,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 16:47:25,021 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:47:25,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:25,022 INFO L85 PathProgramCache]: Analyzing trace with hash 331898154, now seen corresponding path program 1 times [2024-11-08 16:47:25,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:25,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18341478] [2024-11-08 16:47:25,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:25,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:25,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:25,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:25,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:25,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18341478] [2024-11-08 16:47:25,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18341478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:25,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:25,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:47:25,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196139923] [2024-11-08 16:47:25,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:25,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:47:25,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:25,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:47:25,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:47:25,179 INFO L87 Difference]: Start difference. First operand 2150 states and 3194 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) [2024-11-08 16:47:25,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:25,381 INFO L93 Difference]: Finished difference Result 4234 states and 6321 transitions. [2024-11-08 16:47:25,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:47:25,381 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 [2024-11-08 16:47:25,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:25,389 INFO L225 Difference]: With dead ends: 4234 [2024-11-08 16:47:25,389 INFO L226 Difference]: Without dead ends: 2150 [2024-11-08 16:47:25,394 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 [2024-11-08 16:47:25,395 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 570 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:25,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [570 Valid, 172 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:47:25,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2150 states. [2024-11-08 16:47:25,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2150 to 2150. [2024-11-08 16:47:25,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2150 states, 2149 states have (on average 1.4718473708701723) internal successors, (3163), 2149 states have internal predecessors, (3163), 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) [2024-11-08 16:47:25,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 3163 transitions. [2024-11-08 16:47:25,446 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 3163 transitions. Word has length 98 [2024-11-08 16:47:25,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:25,446 INFO L471 AbstractCegarLoop]: Abstraction has 2150 states and 3163 transitions. [2024-11-08 16:47:25,447 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) [2024-11-08 16:47:25,447 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 3163 transitions. [2024-11-08 16:47:25,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 16:47:25,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:25,448 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] [2024-11-08 16:47:25,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 16:47:25,449 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:47:25,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:25,449 INFO L85 PathProgramCache]: Analyzing trace with hash 19008367, now seen corresponding path program 1 times [2024-11-08 16:47:25,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:25,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078211368] [2024-11-08 16:47:25,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:25,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:25,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:26,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:26,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:26,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078211368] [2024-11-08 16:47:26,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078211368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:26,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:26,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 16:47:26,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949040272] [2024-11-08 16:47:26,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:26,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 16:47:26,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:26,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 16:47:26,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:47:26,371 INFO L87 Difference]: Start difference. First operand 2150 states and 3163 transitions. Second operand has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 12 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) [2024-11-08 16:47:27,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:27,350 INFO L93 Difference]: Finished difference Result 6274 states and 9259 transitions. [2024-11-08 16:47:27,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 16:47:27,351 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 12 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 [2024-11-08 16:47:27,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:27,359 INFO L225 Difference]: With dead ends: 6274 [2024-11-08 16:47:27,359 INFO L226 Difference]: Without dead ends: 4247 [2024-11-08 16:47:27,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-11-08 16:47:27,363 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 639 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:27,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [639 Valid, 849 Invalid, 820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 813 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 16:47:27,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4247 states. [2024-11-08 16:47:27,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4247 to 2150. [2024-11-08 16:47:27,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2150 states, 2149 states have (on average 1.4699860400186133) internal successors, (3159), 2149 states have internal predecessors, (3159), 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) [2024-11-08 16:47:27,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 3159 transitions. [2024-11-08 16:47:27,423 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 3159 transitions. Word has length 99 [2024-11-08 16:47:27,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:27,423 INFO L471 AbstractCegarLoop]: Abstraction has 2150 states and 3159 transitions. [2024-11-08 16:47:27,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 12 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) [2024-11-08 16:47:27,425 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 3159 transitions. [2024-11-08 16:47:27,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 16:47:27,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:27,429 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:47:27,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 16:47:27,429 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:47:27,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:27,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1323257447, now seen corresponding path program 1 times [2024-11-08 16:47:27,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:27,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418731343] [2024-11-08 16:47:27,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:27,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:27,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:27,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:27,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:27,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418731343] [2024-11-08 16:47:27,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418731343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:27,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:27,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:47:27,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025387218] [2024-11-08 16:47:27,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:27,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 16:47:27,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:27,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 16:47:27,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:47:27,977 INFO L87 Difference]: Start difference. First operand 2150 states and 3159 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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) [2024-11-08 16:47:28,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:28,530 INFO L93 Difference]: Finished difference Result 6144 states and 9081 transitions. [2024-11-08 16:47:28,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:47:28,531 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 100 [2024-11-08 16:47:28,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:28,538 INFO L225 Difference]: With dead ends: 6144 [2024-11-08 16:47:28,538 INFO L226 Difference]: Without dead ends: 4102 [2024-11-08 16:47:28,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-11-08 16:47:28,541 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 1155 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:28,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1155 Valid, 551 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 16:47:28,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4102 states. [2024-11-08 16:47:28,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4102 to 2150. [2024-11-08 16:47:28,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2150 states, 2149 states have (on average 1.4695207073057235) internal successors, (3158), 2149 states have internal predecessors, (3158), 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) [2024-11-08 16:47:28,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 3158 transitions. [2024-11-08 16:47:28,589 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 3158 transitions. Word has length 100 [2024-11-08 16:47:28,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:28,589 INFO L471 AbstractCegarLoop]: Abstraction has 2150 states and 3158 transitions. [2024-11-08 16:47:28,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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) [2024-11-08 16:47:28,590 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 3158 transitions. [2024-11-08 16:47:28,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 16:47:28,591 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:28,591 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:47:28,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 16:47:28,592 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:47:28,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:28,592 INFO L85 PathProgramCache]: Analyzing trace with hash -845397759, now seen corresponding path program 1 times [2024-11-08 16:47:28,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:28,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80610037] [2024-11-08 16:47:28,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:28,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:29,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:29,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:29,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80610037] [2024-11-08 16:47:29,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80610037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:29,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:29,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 16:47:29,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240049994] [2024-11-08 16:47:29,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:29,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 16:47:29,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:29,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 16:47:29,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:47:29,043 INFO L87 Difference]: Start difference. First operand 2150 states and 3158 transitions. Second operand has 10 states, 10 states have (on average 10.0) internal successors, (100), 9 states have internal predecessors, (100), 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) [2024-11-08 16:47:29,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:29,870 INFO L93 Difference]: Finished difference Result 6289 states and 9274 transitions. [2024-11-08 16:47:29,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:47:29,871 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 9 states have internal predecessors, (100), 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 100 [2024-11-08 16:47:29,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:29,878 INFO L225 Difference]: With dead ends: 6289 [2024-11-08 16:47:29,879 INFO L226 Difference]: Without dead ends: 4252 [2024-11-08 16:47:29,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-08 16:47:29,883 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 485 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:29,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 991 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 16:47:29,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4252 states. [2024-11-08 16:47:29,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4252 to 2150. [2024-11-08 16:47:29,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2150 states, 2149 states have (on average 1.4685900418799442) internal successors, (3156), 2149 states have internal predecessors, (3156), 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) [2024-11-08 16:47:29,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 3156 transitions. [2024-11-08 16:47:29,937 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 3156 transitions. Word has length 100 [2024-11-08 16:47:29,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:29,937 INFO L471 AbstractCegarLoop]: Abstraction has 2150 states and 3156 transitions. [2024-11-08 16:47:29,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 9 states have internal predecessors, (100), 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) [2024-11-08 16:47:29,938 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 3156 transitions. [2024-11-08 16:47:29,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-08 16:47:29,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:29,939 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:47:29,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 16:47:29,940 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:47:29,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:29,940 INFO L85 PathProgramCache]: Analyzing trace with hash -573539590, now seen corresponding path program 1 times [2024-11-08 16:47:29,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:29,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769788640] [2024-11-08 16:47:29,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:29,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:30,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:30,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:30,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769788640] [2024-11-08 16:47:30,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769788640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:30,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:30,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 16:47:30,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595920051] [2024-11-08 16:47:30,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:30,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 16:47:30,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:30,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 16:47:30,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:47:30,507 INFO L87 Difference]: Start difference. First operand 2150 states and 3156 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 9 states have internal predecessors, (101), 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) [2024-11-08 16:47:31,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:31,408 INFO L93 Difference]: Finished difference Result 6244 states and 9204 transitions. [2024-11-08 16:47:31,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:47:31,409 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 9 states have internal predecessors, (101), 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 101 [2024-11-08 16:47:31,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:31,416 INFO L225 Difference]: With dead ends: 6244 [2024-11-08 16:47:31,417 INFO L226 Difference]: Without dead ends: 4237 [2024-11-08 16:47:31,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-11-08 16:47:31,420 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 908 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:31,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [908 Valid, 953 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 16:47:31,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4237 states. [2024-11-08 16:47:31,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4237 to 2150. [2024-11-08 16:47:31,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2150 states, 2149 states have (on average 1.4662633783154955) internal successors, (3151), 2149 states have internal predecessors, (3151), 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) [2024-11-08 16:47:31,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 3151 transitions. [2024-11-08 16:47:31,477 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 3151 transitions. Word has length 101 [2024-11-08 16:47:31,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:31,477 INFO L471 AbstractCegarLoop]: Abstraction has 2150 states and 3151 transitions. [2024-11-08 16:47:31,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 9 states have internal predecessors, (101), 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) [2024-11-08 16:47:31,477 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 3151 transitions. [2024-11-08 16:47:31,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 16:47:31,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:31,479 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:47:31,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 16:47:31,479 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:47:31,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:31,481 INFO L85 PathProgramCache]: Analyzing trace with hash -427226295, now seen corresponding path program 1 times [2024-11-08 16:47:31,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:31,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469781725] [2024-11-08 16:47:31,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:31,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:31,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:31,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:31,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:31,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469781725] [2024-11-08 16:47:31,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469781725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:31,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:31,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 16:47:31,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830342917] [2024-11-08 16:47:31,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:31,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 16:47:31,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:31,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 16:47:31,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:47:31,943 INFO L87 Difference]: Start difference. First operand 2150 states and 3151 transitions. Second operand has 10 states, 10 states have (on average 10.2) internal successors, (102), 9 states have internal predecessors, (102), 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) [2024-11-08 16:47:32,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:32,558 INFO L93 Difference]: Finished difference Result 6144 states and 9039 transitions. [2024-11-08 16:47:32,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:47:32,559 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 9 states have internal predecessors, (102), 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 102 [2024-11-08 16:47:32,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:32,567 INFO L225 Difference]: With dead ends: 6144 [2024-11-08 16:47:32,567 INFO L226 Difference]: Without dead ends: 4192 [2024-11-08 16:47:32,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-08 16:47:32,571 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 897 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:32,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 612 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 16:47:32,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4192 states. [2024-11-08 16:47:32,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4192 to 2150. [2024-11-08 16:47:32,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2150 states, 2149 states have (on average 1.4630060493252677) internal successors, (3144), 2149 states have internal predecessors, (3144), 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) [2024-11-08 16:47:32,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 3144 transitions. [2024-11-08 16:47:32,623 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 3144 transitions. Word has length 102 [2024-11-08 16:47:32,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:32,624 INFO L471 AbstractCegarLoop]: Abstraction has 2150 states and 3144 transitions. [2024-11-08 16:47:32,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 9 states have internal predecessors, (102), 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) [2024-11-08 16:47:32,624 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 3144 transitions. [2024-11-08 16:47:32,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-08 16:47:32,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:32,626 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:47:32,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 16:47:32,626 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:47:32,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:32,627 INFO L85 PathProgramCache]: Analyzing trace with hash -916891525, now seen corresponding path program 1 times [2024-11-08 16:47:32,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:32,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395695410] [2024-11-08 16:47:32,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:32,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:32,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:33,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:33,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:33,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395695410] [2024-11-08 16:47:33,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395695410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:33,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:33,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 16:47:33,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325427212] [2024-11-08 16:47:33,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:33,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 16:47:33,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:33,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 16:47:33,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:47:33,179 INFO L87 Difference]: Start difference. First operand 2150 states and 3144 transitions. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 9 states have internal predecessors, (103), 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) [2024-11-08 16:47:33,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:33,862 INFO L93 Difference]: Finished difference Result 6199 states and 9108 transitions. [2024-11-08 16:47:33,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:47:33,863 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 9 states have internal predecessors, (103), 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 103 [2024-11-08 16:47:33,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:33,870 INFO L225 Difference]: With dead ends: 6199 [2024-11-08 16:47:33,870 INFO L226 Difference]: Without dead ends: 4217 [2024-11-08 16:47:33,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-08 16:47:33,874 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 985 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:33,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 814 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 16:47:33,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4217 states. [2024-11-08 16:47:33,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4217 to 2150. [2024-11-08 16:47:33,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2150 states, 2149 states have (on average 1.4602140530479293) internal successors, (3138), 2149 states have internal predecessors, (3138), 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) [2024-11-08 16:47:33,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 3138 transitions. [2024-11-08 16:47:33,927 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 3138 transitions. Word has length 103 [2024-11-08 16:47:33,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:33,927 INFO L471 AbstractCegarLoop]: Abstraction has 2150 states and 3138 transitions. [2024-11-08 16:47:33,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 9 states have internal predecessors, (103), 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) [2024-11-08 16:47:33,928 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 3138 transitions. [2024-11-08 16:47:33,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 16:47:33,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:33,929 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:47:33,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 16:47:33,930 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:47:33,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:33,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1323186080, now seen corresponding path program 1 times [2024-11-08 16:47:33,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:33,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742230772] [2024-11-08 16:47:33,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:33,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:34,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:35,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:35,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:35,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742230772] [2024-11-08 16:47:35,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742230772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:35,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:35,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 16:47:35,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97271797] [2024-11-08 16:47:35,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:35,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 16:47:35,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:35,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 16:47:35,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:47:35,027 INFO L87 Difference]: Start difference. First operand 2150 states and 3138 transitions. Second operand has 14 states, 14 states have (on average 7.428571428571429) internal successors, (104), 14 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:36,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:36,312 INFO L93 Difference]: Finished difference Result 8750 states and 12893 transitions. [2024-11-08 16:47:36,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 16:47:36,313 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.428571428571429) internal successors, (104), 14 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-08 16:47:36,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:36,329 INFO L225 Difference]: With dead ends: 8750 [2024-11-08 16:47:36,329 INFO L226 Difference]: Without dead ends: 8188 [2024-11-08 16:47:36,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-08 16:47:36,334 INFO L432 NwaCegarLoop]: 574 mSDtfsCounter, 1025 mSDsluCounter, 4143 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 4717 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:36,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1025 Valid, 4717 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 16:47:36,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8188 states. [2024-11-08 16:47:36,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8188 to 2124. [2024-11-08 16:47:36,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2124 states, 2123 states have (on average 1.460197833254828) internal successors, (3100), 2123 states have internal predecessors, (3100), 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) [2024-11-08 16:47:36,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2124 states to 2124 states and 3100 transitions. [2024-11-08 16:47:36,430 INFO L78 Accepts]: Start accepts. Automaton has 2124 states and 3100 transitions. Word has length 104 [2024-11-08 16:47:36,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:36,431 INFO L471 AbstractCegarLoop]: Abstraction has 2124 states and 3100 transitions. [2024-11-08 16:47:36,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.428571428571429) internal successors, (104), 14 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:36,431 INFO L276 IsEmpty]: Start isEmpty. Operand 2124 states and 3100 transitions. [2024-11-08 16:47:36,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 16:47:36,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:36,433 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:47:36,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 16:47:36,433 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:47:36,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:36,433 INFO L85 PathProgramCache]: Analyzing trace with hash -977108255, now seen corresponding path program 1 times [2024-11-08 16:47:36,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:36,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185931357] [2024-11-08 16:47:36,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:36,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:36,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:41,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:41,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:41,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185931357] [2024-11-08 16:47:41,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185931357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:41,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:41,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2024-11-08 16:47:41,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020454374] [2024-11-08 16:47:41,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:41,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-08 16:47:41,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:41,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-08 16:47:41,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=1375, Unknown=0, NotChecked=0, Total=1482 [2024-11-08 16:47:41,334 INFO L87 Difference]: Start difference. First operand 2124 states and 3100 transitions. Second operand has 39 states, 39 states have (on average 2.6666666666666665) internal successors, (104), 39 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:56,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:47:56,409 INFO L93 Difference]: Finished difference Result 14658 states and 21634 transitions. [2024-11-08 16:47:56,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-08 16:47:56,410 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 2.6666666666666665) internal successors, (104), 39 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-08 16:47:56,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:47:56,437 INFO L225 Difference]: With dead ends: 14658 [2024-11-08 16:47:56,437 INFO L226 Difference]: Without dead ends: 14136 [2024-11-08 16:47:56,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 761 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=744, Invalid=4512, Unknown=0, NotChecked=0, Total=5256 [2024-11-08 16:47:56,443 INFO L432 NwaCegarLoop]: 752 mSDtfsCounter, 1725 mSDsluCounter, 16687 mSDsCounter, 0 mSdLazyCounter, 10976 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1725 SdHoareTripleChecker+Valid, 17439 SdHoareTripleChecker+Invalid, 10996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 10976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:47:56,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1725 Valid, 17439 Invalid, 10996 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 10976 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2024-11-08 16:47:56,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14136 states. [2024-11-08 16:47:56,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14136 to 2157. [2024-11-08 16:47:56,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2157 states, 2156 states have (on average 1.4568645640074211) internal successors, (3141), 2156 states have internal predecessors, (3141), 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) [2024-11-08 16:47:56,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2157 states to 2157 states and 3141 transitions. [2024-11-08 16:47:56,614 INFO L78 Accepts]: Start accepts. Automaton has 2157 states and 3141 transitions. Word has length 104 [2024-11-08 16:47:56,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:47:56,614 INFO L471 AbstractCegarLoop]: Abstraction has 2157 states and 3141 transitions. [2024-11-08 16:47:56,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 2.6666666666666665) internal successors, (104), 39 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:47:56,615 INFO L276 IsEmpty]: Start isEmpty. Operand 2157 states and 3141 transitions. [2024-11-08 16:47:56,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 16:47:56,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:47:56,616 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:47:56,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 16:47:56,617 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:47:56,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:47:56,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1621509664, now seen corresponding path program 1 times [2024-11-08 16:47:56,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:47:56,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169176390] [2024-11-08 16:47:56,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:47:56,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:47:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:47:58,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:47:58,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:47:58,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169176390] [2024-11-08 16:47:58,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169176390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:47:58,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:47:58,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-08 16:47:58,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545693667] [2024-11-08 16:47:58,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:47:58,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 16:47:58,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:47:58,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 16:47:58,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2024-11-08 16:47:58,176 INFO L87 Difference]: Start difference. First operand 2157 states and 3141 transitions. Second operand has 18 states, 18 states have (on average 5.777777777777778) internal successors, (104), 18 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:00,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:48:00,252 INFO L93 Difference]: Finished difference Result 6696 states and 9851 transitions. [2024-11-08 16:48:00,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-08 16:48:00,253 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.777777777777778) internal successors, (104), 18 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-08 16:48:00,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:48:00,264 INFO L225 Difference]: With dead ends: 6696 [2024-11-08 16:48:00,264 INFO L226 Difference]: Without dead ends: 6174 [2024-11-08 16:48:00,266 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=261, Invalid=999, Unknown=0, NotChecked=0, Total=1260 [2024-11-08 16:48:00,267 INFO L432 NwaCegarLoop]: 357 mSDtfsCounter, 1507 mSDsluCounter, 3205 mSDsCounter, 0 mSdLazyCounter, 985 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 3562 SdHoareTripleChecker+Invalid, 991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:48:00,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 3562 Invalid, 991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 985 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 16:48:00,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6174 states. [2024-11-08 16:48:00,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6174 to 2216. [2024-11-08 16:48:00,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2216 states, 2215 states have (on average 1.4528216704288939) internal successors, (3218), 2215 states have internal predecessors, (3218), 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) [2024-11-08 16:48:00,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2216 states to 2216 states and 3218 transitions. [2024-11-08 16:48:00,330 INFO L78 Accepts]: Start accepts. Automaton has 2216 states and 3218 transitions. Word has length 104 [2024-11-08 16:48:00,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:48:00,330 INFO L471 AbstractCegarLoop]: Abstraction has 2216 states and 3218 transitions. [2024-11-08 16:48:00,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.777777777777778) internal successors, (104), 18 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:00,330 INFO L276 IsEmpty]: Start isEmpty. Operand 2216 states and 3218 transitions. [2024-11-08 16:48:00,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 16:48:00,332 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:00,332 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:00,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-08 16:48:00,332 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:48:00,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:00,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1886035071, now seen corresponding path program 1 times [2024-11-08 16:48:00,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:00,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960937297] [2024-11-08 16:48:00,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:00,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:00,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:01,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:01,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:48:01,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960937297] [2024-11-08 16:48:01,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960937297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:48:01,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:48:01,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-08 16:48:01,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943212521] [2024-11-08 16:48:01,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:48:01,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 16:48:01,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:48:01,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 16:48:01,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:48:01,153 INFO L87 Difference]: Start difference. First operand 2216 states and 3218 transitions. Second operand has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:02,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:48:02,061 INFO L93 Difference]: Finished difference Result 4804 states and 7036 transitions. [2024-11-08 16:48:02,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 16:48:02,062 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-08 16:48:02,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:48:02,070 INFO L225 Difference]: With dead ends: 4804 [2024-11-08 16:48:02,070 INFO L226 Difference]: Without dead ends: 4227 [2024-11-08 16:48:02,072 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-08 16:48:02,073 INFO L432 NwaCegarLoop]: 307 mSDtfsCounter, 976 mSDsluCounter, 2035 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 2342 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:48:02,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 2342 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 16:48:02,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4227 states. [2024-11-08 16:48:02,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4227 to 2175. [2024-11-08 16:48:02,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2175 states, 2174 states have (on average 1.453081876724931) internal successors, (3159), 2174 states have internal predecessors, (3159), 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) [2024-11-08 16:48:02,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2175 states to 2175 states and 3159 transitions. [2024-11-08 16:48:02,131 INFO L78 Accepts]: Start accepts. Automaton has 2175 states and 3159 transitions. Word has length 104 [2024-11-08 16:48:02,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:48:02,131 INFO L471 AbstractCegarLoop]: Abstraction has 2175 states and 3159 transitions. [2024-11-08 16:48:02,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:02,132 INFO L276 IsEmpty]: Start isEmpty. Operand 2175 states and 3159 transitions. [2024-11-08 16:48:02,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 16:48:02,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:02,133 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:02,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-08 16:48:02,134 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:48:02,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:02,134 INFO L85 PathProgramCache]: Analyzing trace with hash -189921857, now seen corresponding path program 1 times [2024-11-08 16:48:02,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:02,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610422037] [2024-11-08 16:48:02,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:02,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:02,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:02,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:02,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:48:02,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610422037] [2024-11-08 16:48:02,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610422037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:48:02,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:48:02,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 16:48:02,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535457891] [2024-11-08 16:48:02,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:48:02,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 16:48:02,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:48:02,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 16:48:02,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:48:02,874 INFO L87 Difference]: Start difference. First operand 2175 states and 3159 transitions. Second operand has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:03,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:48:03,785 INFO L93 Difference]: Finished difference Result 8548 states and 12598 transitions. [2024-11-08 16:48:03,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:48:03,786 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-08 16:48:03,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:48:03,801 INFO L225 Difference]: With dead ends: 8548 [2024-11-08 16:48:03,801 INFO L226 Difference]: Without dead ends: 7991 [2024-11-08 16:48:03,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2024-11-08 16:48:03,805 INFO L432 NwaCegarLoop]: 506 mSDtfsCounter, 881 mSDsluCounter, 2148 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 2654 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:48:03,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 2654 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 16:48:03,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7991 states. [2024-11-08 16:48:03,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7991 to 2144. [2024-11-08 16:48:03,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2144 states, 2143 states have (on average 1.454969668688754) internal successors, (3118), 2143 states have internal predecessors, (3118), 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) [2024-11-08 16:48:03,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2144 states to 2144 states and 3118 transitions. [2024-11-08 16:48:03,883 INFO L78 Accepts]: Start accepts. Automaton has 2144 states and 3118 transitions. Word has length 104 [2024-11-08 16:48:03,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:48:03,884 INFO L471 AbstractCegarLoop]: Abstraction has 2144 states and 3118 transitions. [2024-11-08 16:48:03,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:03,884 INFO L276 IsEmpty]: Start isEmpty. Operand 2144 states and 3118 transitions. [2024-11-08 16:48:03,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 16:48:03,885 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:03,886 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:03,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-08 16:48:03,886 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:48:03,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:03,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1844155757, now seen corresponding path program 1 times [2024-11-08 16:48:03,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:03,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511817176] [2024-11-08 16:48:03,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:03,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:03,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:04,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:04,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:48:04,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511817176] [2024-11-08 16:48:04,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511817176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:48:04,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:48:04,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 16:48:04,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722966010] [2024-11-08 16:48:04,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:48:04,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 16:48:04,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:48:04,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 16:48:04,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:48:04,826 INFO L87 Difference]: Start difference. First operand 2144 states and 3118 transitions. Second operand has 14 states, 14 states have (on average 7.5) internal successors, (105), 14 states have internal predecessors, (105), 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) [2024-11-08 16:48:06,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:48:06,104 INFO L93 Difference]: Finished difference Result 8612 states and 12685 transitions. [2024-11-08 16:48:06,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 16:48:06,105 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.5) internal successors, (105), 14 states have internal predecessors, (105), 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 105 [2024-11-08 16:48:06,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:48:06,122 INFO L225 Difference]: With dead ends: 8612 [2024-11-08 16:48:06,123 INFO L226 Difference]: Without dead ends: 8051 [2024-11-08 16:48:06,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-08 16:48:06,126 INFO L432 NwaCegarLoop]: 526 mSDtfsCounter, 775 mSDsluCounter, 4637 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 5163 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:48:06,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 5163 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 16:48:06,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8051 states. [2024-11-08 16:48:06,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8051 to 2103. [2024-11-08 16:48:06,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2103 states, 2102 states have (on average 1.456707897240723) internal successors, (3062), 2102 states have internal predecessors, (3062), 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) [2024-11-08 16:48:06,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2103 states to 2103 states and 3062 transitions. [2024-11-08 16:48:06,210 INFO L78 Accepts]: Start accepts. Automaton has 2103 states and 3062 transitions. Word has length 105 [2024-11-08 16:48:06,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:48:06,210 INFO L471 AbstractCegarLoop]: Abstraction has 2103 states and 3062 transitions. [2024-11-08 16:48:06,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.5) internal successors, (105), 14 states have internal predecessors, (105), 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) [2024-11-08 16:48:06,210 INFO L276 IsEmpty]: Start isEmpty. Operand 2103 states and 3062 transitions. [2024-11-08 16:48:06,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 16:48:06,212 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:06,212 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:06,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-08 16:48:06,212 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:48:06,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:06,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1678371830, now seen corresponding path program 1 times [2024-11-08 16:48:06,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:06,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674202266] [2024-11-08 16:48:06,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:06,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:06,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:06,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:06,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:48:06,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674202266] [2024-11-08 16:48:06,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674202266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:48:06,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:48:06,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:48:06,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159386028] [2024-11-08 16:48:06,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:48:06,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:48:06,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:48:06,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:48:06,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:48:06,465 INFO L87 Difference]: Start difference. First operand 2103 states and 3062 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 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) [2024-11-08 16:48:06,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:48:06,519 INFO L93 Difference]: Finished difference Result 4876 states and 7176 transitions. [2024-11-08 16:48:06,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:48:06,520 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 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 105 [2024-11-08 16:48:06,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:48:06,525 INFO L225 Difference]: With dead ends: 4876 [2024-11-08 16:48:06,525 INFO L226 Difference]: Without dead ends: 2931 [2024-11-08 16:48:06,527 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:48:06,528 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 106 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:48:06,528 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 516 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:48:06,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2931 states. [2024-11-08 16:48:06,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2931 to 2916. [2024-11-08 16:48:06,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2916 states, 2915 states have (on average 1.4566037735849056) internal successors, (4246), 2915 states have internal predecessors, (4246), 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) [2024-11-08 16:48:06,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2916 states to 2916 states and 4246 transitions. [2024-11-08 16:48:06,577 INFO L78 Accepts]: Start accepts. Automaton has 2916 states and 4246 transitions. Word has length 105 [2024-11-08 16:48:06,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:48:06,578 INFO L471 AbstractCegarLoop]: Abstraction has 2916 states and 4246 transitions. [2024-11-08 16:48:06,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 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) [2024-11-08 16:48:06,578 INFO L276 IsEmpty]: Start isEmpty. Operand 2916 states and 4246 transitions. [2024-11-08 16:48:06,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 16:48:06,579 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:06,579 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:06,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-08 16:48:06,580 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:48:06,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:06,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1357510990, now seen corresponding path program 1 times [2024-11-08 16:48:06,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:06,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43338638] [2024-11-08 16:48:06,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:06,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:06,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:06,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:06,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:48:06,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43338638] [2024-11-08 16:48:06,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43338638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:48:06,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:48:06,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:48:06,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588598847] [2024-11-08 16:48:06,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:48:06,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:48:06,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:48:06,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:48:06,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:48:06,895 INFO L87 Difference]: Start difference. First operand 2916 states and 4246 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 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) [2024-11-08 16:48:06,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:48:06,932 INFO L93 Difference]: Finished difference Result 2932 states and 4268 transitions. [2024-11-08 16:48:06,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:48:06,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 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 105 [2024-11-08 16:48:06,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:48:06,938 INFO L225 Difference]: With dead ends: 2932 [2024-11-08 16:48:06,938 INFO L226 Difference]: Without dead ends: 2930 [2024-11-08 16:48:06,940 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 [2024-11-08 16:48:06,941 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 0 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:48:06,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 849 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:48:06,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2024-11-08 16:48:06,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 2930. [2024-11-08 16:48:06,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2930 states, 2929 states have (on average 1.4493001024240355) internal successors, (4245), 2929 states have internal predecessors, (4245), 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) [2024-11-08 16:48:06,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2930 states to 2930 states and 4245 transitions. [2024-11-08 16:48:06,987 INFO L78 Accepts]: Start accepts. Automaton has 2930 states and 4245 transitions. Word has length 105 [2024-11-08 16:48:06,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:48:06,987 INFO L471 AbstractCegarLoop]: Abstraction has 2930 states and 4245 transitions. [2024-11-08 16:48:06,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 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) [2024-11-08 16:48:06,988 INFO L276 IsEmpty]: Start isEmpty. Operand 2930 states and 4245 transitions. [2024-11-08 16:48:06,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 16:48:06,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:06,989 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:06,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-08 16:48:06,989 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:48:06,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:06,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1072562766, now seen corresponding path program 1 times [2024-11-08 16:48:06,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:06,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613578904] [2024-11-08 16:48:06,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:06,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:07,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:07,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:07,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:48:07,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613578904] [2024-11-08 16:48:07,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613578904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:48:07,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:48:07,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 16:48:07,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944855401] [2024-11-08 16:48:07,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:48:07,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 16:48:07,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:48:07,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 16:48:07,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:48:07,952 INFO L87 Difference]: Start difference. First operand 2930 states and 4245 transitions. Second operand has 14 states, 14 states have (on average 7.5) internal successors, (105), 14 states have internal predecessors, (105), 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) [2024-11-08 16:48:09,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:48:09,162 INFO L93 Difference]: Finished difference Result 12066 states and 17638 transitions. [2024-11-08 16:48:09,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 16:48:09,163 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.5) internal successors, (105), 14 states have internal predecessors, (105), 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 105 [2024-11-08 16:48:09,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:48:09,184 INFO L225 Difference]: With dead ends: 12066 [2024-11-08 16:48:09,184 INFO L226 Difference]: Without dead ends: 11276 [2024-11-08 16:48:09,189 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-08 16:48:09,189 INFO L432 NwaCegarLoop]: 504 mSDtfsCounter, 922 mSDsluCounter, 3236 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 3740 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:48:09,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [922 Valid, 3740 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 16:48:09,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11276 states. [2024-11-08 16:48:09,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11276 to 2901. [2024-11-08 16:48:09,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2901 states, 2900 states have (on average 1.4506896551724138) internal successors, (4207), 2900 states have internal predecessors, (4207), 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) [2024-11-08 16:48:09,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2901 states to 2901 states and 4207 transitions. [2024-11-08 16:48:09,301 INFO L78 Accepts]: Start accepts. Automaton has 2901 states and 4207 transitions. Word has length 105 [2024-11-08 16:48:09,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:48:09,302 INFO L471 AbstractCegarLoop]: Abstraction has 2901 states and 4207 transitions. [2024-11-08 16:48:09,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.5) internal successors, (105), 14 states have internal predecessors, (105), 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) [2024-11-08 16:48:09,302 INFO L276 IsEmpty]: Start isEmpty. Operand 2901 states and 4207 transitions. [2024-11-08 16:48:09,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 16:48:09,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:09,303 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:09,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-08 16:48:09,304 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:48:09,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:09,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1502008512, now seen corresponding path program 1 times [2024-11-08 16:48:09,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:09,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319896332] [2024-11-08 16:48:09,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:09,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:09,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:10,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:10,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:48:10,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319896332] [2024-11-08 16:48:10,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319896332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:48:10,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:48:10,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-08 16:48:10,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479568821] [2024-11-08 16:48:10,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:48:10,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 16:48:10,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:48:10,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 16:48:10,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2024-11-08 16:48:10,640 INFO L87 Difference]: Start difference. First operand 2901 states and 4207 transitions. Second operand has 18 states, 18 states have (on average 5.888888888888889) internal successors, (106), 18 states have internal predecessors, (106), 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) [2024-11-08 16:48:13,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:48:13,600 INFO L93 Difference]: Finished difference Result 17550 states and 25691 transitions. [2024-11-08 16:48:13,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-08 16:48:13,601 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.888888888888889) internal successors, (106), 18 states have internal predecessors, (106), 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 106 [2024-11-08 16:48:13,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:48:13,635 INFO L225 Difference]: With dead ends: 17550 [2024-11-08 16:48:13,635 INFO L226 Difference]: Without dead ends: 16775 [2024-11-08 16:48:13,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=335, Invalid=1147, Unknown=0, NotChecked=0, Total=1482 [2024-11-08 16:48:13,642 INFO L432 NwaCegarLoop]: 655 mSDtfsCounter, 1306 mSDsluCounter, 5535 mSDsCounter, 0 mSdLazyCounter, 1533 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1306 SdHoareTripleChecker+Valid, 6190 SdHoareTripleChecker+Invalid, 1540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:48:13,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1306 Valid, 6190 Invalid, 1540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1533 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 16:48:13,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16775 states. [2024-11-08 16:48:13,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16775 to 2875. [2024-11-08 16:48:13,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2875 states, 2874 states have (on average 1.4526791927627) internal successors, (4175), 2874 states have internal predecessors, (4175), 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) [2024-11-08 16:48:13,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 4175 transitions. [2024-11-08 16:48:13,766 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 4175 transitions. Word has length 106 [2024-11-08 16:48:13,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:48:13,767 INFO L471 AbstractCegarLoop]: Abstraction has 2875 states and 4175 transitions. [2024-11-08 16:48:13,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.888888888888889) internal successors, (106), 18 states have internal predecessors, (106), 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) [2024-11-08 16:48:13,767 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 4175 transitions. [2024-11-08 16:48:13,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-08 16:48:13,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:13,769 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:13,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-08 16:48:13,770 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:48:13,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:13,771 INFO L85 PathProgramCache]: Analyzing trace with hash -483955458, now seen corresponding path program 1 times [2024-11-08 16:48:13,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:13,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093140422] [2024-11-08 16:48:13,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:13,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:13,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:13,973 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:13,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:48:13,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093140422] [2024-11-08 16:48:13,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093140422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:48:13,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:48:13,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:48:13,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172286541] [2024-11-08 16:48:13,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:48:13,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:48:13,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:48:13,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:48:13,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:48:13,977 INFO L87 Difference]: Start difference. First operand 2875 states and 4175 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 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) [2024-11-08 16:48:14,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:48:14,448 INFO L93 Difference]: Finished difference Result 9616 states and 14156 transitions. [2024-11-08 16:48:14,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:48:14,449 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 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 137 [2024-11-08 16:48:14,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:48:14,460 INFO L225 Difference]: With dead ends: 9616 [2024-11-08 16:48:14,460 INFO L226 Difference]: Without dead ends: 6844 [2024-11-08 16:48:14,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:48:14,464 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 929 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 929 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:48:14,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [929 Valid, 534 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 16:48:14,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6844 states. [2024-11-08 16:48:14,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6844 to 4280. [2024-11-08 16:48:14,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4280 states, 4279 states have (on average 1.4557139518579107) internal successors, (6229), 4279 states have internal predecessors, (6229), 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) [2024-11-08 16:48:14,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4280 states to 4280 states and 6229 transitions. [2024-11-08 16:48:14,535 INFO L78 Accepts]: Start accepts. Automaton has 4280 states and 6229 transitions. Word has length 137 [2024-11-08 16:48:14,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:48:14,535 INFO L471 AbstractCegarLoop]: Abstraction has 4280 states and 6229 transitions. [2024-11-08 16:48:14,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 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) [2024-11-08 16:48:14,536 INFO L276 IsEmpty]: Start isEmpty. Operand 4280 states and 6229 transitions. [2024-11-08 16:48:14,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-08 16:48:14,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:14,538 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:14,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-08 16:48:14,538 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:48:14,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:14,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1818088921, now seen corresponding path program 1 times [2024-11-08 16:48:14,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:14,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025978332] [2024-11-08 16:48:14,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:14,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:14,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:14,735 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:14,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:48:14,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025978332] [2024-11-08 16:48:14,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025978332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:48:14,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:48:14,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:48:14,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168101742] [2024-11-08 16:48:14,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:48:14,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:48:14,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:48:14,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:48:14,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:48:14,737 INFO L87 Difference]: Start difference. First operand 4280 states and 6229 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 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) [2024-11-08 16:48:15,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:48:15,091 INFO L93 Difference]: Finished difference Result 14918 states and 21905 transitions. [2024-11-08 16:48:15,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:48:15,091 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 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 137 [2024-11-08 16:48:15,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:48:15,105 INFO L225 Difference]: With dead ends: 14918 [2024-11-08 16:48:15,105 INFO L226 Difference]: Without dead ends: 10759 [2024-11-08 16:48:15,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:48:15,112 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 1059 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:48:15,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 413 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 16:48:15,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10759 states. [2024-11-08 16:48:15,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10759 to 9017. [2024-11-08 16:48:15,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9017 states, 9016 states have (on average 1.457187222715173) internal successors, (13138), 9016 states have internal predecessors, (13138), 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) [2024-11-08 16:48:15,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9017 states to 9017 states and 13138 transitions. [2024-11-08 16:48:15,252 INFO L78 Accepts]: Start accepts. Automaton has 9017 states and 13138 transitions. Word has length 137 [2024-11-08 16:48:15,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:48:15,253 INFO L471 AbstractCegarLoop]: Abstraction has 9017 states and 13138 transitions. [2024-11-08 16:48:15,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 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) [2024-11-08 16:48:15,253 INFO L276 IsEmpty]: Start isEmpty. Operand 9017 states and 13138 transitions. [2024-11-08 16:48:15,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-08 16:48:15,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:15,256 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:15,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-08 16:48:15,256 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:48:15,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:15,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1309320787, now seen corresponding path program 1 times [2024-11-08 16:48:15,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:15,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818976602] [2024-11-08 16:48:15,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:15,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:15,451 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:15,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:48:15,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818976602] [2024-11-08 16:48:15,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818976602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:48:15,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:48:15,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:48:15,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720143948] [2024-11-08 16:48:15,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:48:15,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:48:15,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:48:15,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:48:15,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:48:15,454 INFO L87 Difference]: Start difference. First operand 9017 states and 13138 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 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) [2024-11-08 16:48:15,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:48:15,888 INFO L93 Difference]: Finished difference Result 29129 states and 42632 transitions. [2024-11-08 16:48:15,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:48:15,889 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 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 137 [2024-11-08 16:48:15,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:48:15,912 INFO L225 Difference]: With dead ends: 29129 [2024-11-08 16:48:15,912 INFO L226 Difference]: Without dead ends: 20233 [2024-11-08 16:48:15,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:48:15,922 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 974 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:48:15,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [974 Valid, 411 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 16:48:15,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20233 states. [2024-11-08 16:48:16,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20233 to 19071. [2024-11-08 16:48:16,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19071 states, 19070 states have (on average 1.4561090718405874) internal successors, (27768), 19070 states have internal predecessors, (27768), 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) [2024-11-08 16:48:16,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19071 states to 19071 states and 27768 transitions. [2024-11-08 16:48:16,178 INFO L78 Accepts]: Start accepts. Automaton has 19071 states and 27768 transitions. Word has length 137 [2024-11-08 16:48:16,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:48:16,179 INFO L471 AbstractCegarLoop]: Abstraction has 19071 states and 27768 transitions. [2024-11-08 16:48:16,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 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) [2024-11-08 16:48:16,179 INFO L276 IsEmpty]: Start isEmpty. Operand 19071 states and 27768 transitions. [2024-11-08 16:48:16,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-08 16:48:16,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:16,182 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:16,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-08 16:48:16,182 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:48:16,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:16,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1371947553, now seen corresponding path program 1 times [2024-11-08 16:48:16,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:16,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398542107] [2024-11-08 16:48:16,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:16,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:16,372 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:16,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:48:16,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398542107] [2024-11-08 16:48:16,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398542107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:48:16,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:48:16,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:48:16,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849597821] [2024-11-08 16:48:16,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:48:16,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:48:16,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:48:16,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:48:16,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:48:16,375 INFO L87 Difference]: Start difference. First operand 19071 states and 27768 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 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) [2024-11-08 16:48:16,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:48:16,931 INFO L93 Difference]: Finished difference Result 68339 states and 99978 transitions. [2024-11-08 16:48:16,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:48:16,931 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 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 137 [2024-11-08 16:48:16,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:48:16,987 INFO L225 Difference]: With dead ends: 68339 [2024-11-08 16:48:16,987 INFO L226 Difference]: Without dead ends: 49389 [2024-11-08 16:48:17,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:48:17,007 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 1144 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:48:17,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1144 Valid, 415 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 16:48:17,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49389 states. [2024-11-08 16:48:17,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49389 to 40339. [2024-11-08 16:48:17,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40339 states, 40338 states have (on average 1.4540135852050176) internal successors, (58652), 40338 states have internal predecessors, (58652), 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) [2024-11-08 16:48:17,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40339 states to 40339 states and 58652 transitions. [2024-11-08 16:48:17,816 INFO L78 Accepts]: Start accepts. Automaton has 40339 states and 58652 transitions. Word has length 137 [2024-11-08 16:48:17,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:48:17,817 INFO L471 AbstractCegarLoop]: Abstraction has 40339 states and 58652 transitions. [2024-11-08 16:48:17,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 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) [2024-11-08 16:48:17,817 INFO L276 IsEmpty]: Start isEmpty. Operand 40339 states and 58652 transitions. [2024-11-08 16:48:17,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-08 16:48:17,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:17,820 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:17,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-08 16:48:17,820 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:48:17,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:17,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1431544219, now seen corresponding path program 1 times [2024-11-08 16:48:17,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:17,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918827385] [2024-11-08 16:48:17,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:17,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:17,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:18,222 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:18,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:48:18,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918827385] [2024-11-08 16:48:18,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918827385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:48:18,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:48:18,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:48:18,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882592228] [2024-11-08 16:48:18,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:48:18,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:48:18,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:48:18,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:48:18,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:48:18,224 INFO L87 Difference]: Start difference. First operand 40339 states and 58652 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 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) [2024-11-08 16:48:18,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:48:18,808 INFO L93 Difference]: Finished difference Result 150471 states and 219774 transitions. [2024-11-08 16:48:18,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:48:18,809 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 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 137 [2024-11-08 16:48:18,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:48:19,123 INFO L225 Difference]: With dead ends: 150471 [2024-11-08 16:48:19,123 INFO L226 Difference]: Without dead ends: 110253 [2024-11-08 16:48:19,157 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:48:19,157 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 1229 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:48:19,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1229 Valid, 417 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:48:19,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110253 states. [2024-11-08 16:48:20,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110253 to 85195. [2024-11-08 16:48:20,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85195 states, 85194 states have (on average 1.4516045730920017) internal successors, (123668), 85194 states have internal predecessors, (123668), 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) [2024-11-08 16:48:20,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85195 states to 85195 states and 123668 transitions. [2024-11-08 16:48:20,504 INFO L78 Accepts]: Start accepts. Automaton has 85195 states and 123668 transitions. Word has length 137 [2024-11-08 16:48:20,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:48:20,506 INFO L471 AbstractCegarLoop]: Abstraction has 85195 states and 123668 transitions. [2024-11-08 16:48:20,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 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) [2024-11-08 16:48:20,507 INFO L276 IsEmpty]: Start isEmpty. Operand 85195 states and 123668 transitions. [2024-11-08 16:48:20,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-08 16:48:20,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:20,515 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:20,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-08 16:48:20,515 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:48:20,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:20,780 INFO L85 PathProgramCache]: Analyzing trace with hash 423363868, now seen corresponding path program 1 times [2024-11-08 16:48:20,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:20,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091927347] [2024-11-08 16:48:20,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:20,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:20,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:21,100 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:21,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:48:21,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091927347] [2024-11-08 16:48:21,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091927347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:48:21,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:48:21,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:48:21,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545440352] [2024-11-08 16:48:21,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:48:21,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:48:21,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:48:21,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:48:21,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:48:21,103 INFO L87 Difference]: Start difference. First operand 85195 states and 123668 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2024-11-08 16:48:21,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:48:21,909 INFO L93 Difference]: Finished difference Result 150463 states and 218470 transitions. [2024-11-08 16:48:21,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:48:21,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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 137 [2024-11-08 16:48:21,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:48:22,021 INFO L225 Difference]: With dead ends: 150463 [2024-11-08 16:48:22,021 INFO L226 Difference]: Without dead ends: 82556 [2024-11-08 16:48:22,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:48:22,047 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 98 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:48:22,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 469 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:48:22,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82556 states. [2024-11-08 16:48:23,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82556 to 82554. [2024-11-08 16:48:23,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82554 states, 82553 states have (on average 1.442782212639153) internal successors, (119106), 82553 states have internal predecessors, (119106), 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) [2024-11-08 16:48:23,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82554 states to 82554 states and 119106 transitions. [2024-11-08 16:48:23,350 INFO L78 Accepts]: Start accepts. Automaton has 82554 states and 119106 transitions. Word has length 137 [2024-11-08 16:48:23,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:48:23,351 INFO L471 AbstractCegarLoop]: Abstraction has 82554 states and 119106 transitions. [2024-11-08 16:48:23,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2024-11-08 16:48:23,351 INFO L276 IsEmpty]: Start isEmpty. Operand 82554 states and 119106 transitions. [2024-11-08 16:48:23,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-08 16:48:23,375 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:23,375 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:23,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-08 16:48:23,376 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:48:23,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:23,376 INFO L85 PathProgramCache]: Analyzing trace with hash 589666883, now seen corresponding path program 1 times [2024-11-08 16:48:23,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:23,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114858500] [2024-11-08 16:48:23,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:23,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:23,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:23,933 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 16:48:23,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:48:23,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114858500] [2024-11-08 16:48:23,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114858500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:48:23,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:48:23,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:48:23,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755588612] [2024-11-08 16:48:23,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:48:23,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:48:23,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:48:23,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:48:23,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:48:23,937 INFO L87 Difference]: Start difference. First operand 82554 states and 119106 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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) [2024-11-08 16:48:24,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:48:24,713 INFO L93 Difference]: Finished difference Result 160094 states and 230628 transitions. [2024-11-08 16:48:24,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:48:24,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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 168 [2024-11-08 16:48:24,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:48:24,829 INFO L225 Difference]: With dead ends: 160094 [2024-11-08 16:48:24,829 INFO L226 Difference]: Without dead ends: 77657 [2024-11-08 16:48:24,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:48:24,848 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 94 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:48:24,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 459 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:48:24,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77657 states. [2024-11-08 16:48:25,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77657 to 76209. [2024-11-08 16:48:25,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76209 states, 76208 states have (on average 1.433629015326475) internal successors, (109254), 76208 states have internal predecessors, (109254), 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) [2024-11-08 16:48:25,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76209 states to 76209 states and 109254 transitions. [2024-11-08 16:48:25,736 INFO L78 Accepts]: Start accepts. Automaton has 76209 states and 109254 transitions. Word has length 168 [2024-11-08 16:48:25,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:48:25,737 INFO L471 AbstractCegarLoop]: Abstraction has 76209 states and 109254 transitions. [2024-11-08 16:48:25,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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) [2024-11-08 16:48:25,737 INFO L276 IsEmpty]: Start isEmpty. Operand 76209 states and 109254 transitions. [2024-11-08 16:48:26,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-08 16:48:26,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:26,018 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:26,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-08 16:48:26,018 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:48:26,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:26,019 INFO L85 PathProgramCache]: Analyzing trace with hash -255320785, now seen corresponding path program 1 times [2024-11-08 16:48:26,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:26,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910222159] [2024-11-08 16:48:26,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:26,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:26,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:26,384 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-08 16:48:26,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:48:26,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910222159] [2024-11-08 16:48:26,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910222159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:48:26,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:48:26,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:48:26,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185935389] [2024-11-08 16:48:26,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:48:26,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:48:26,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:48:26,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:48:26,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:48:26,387 INFO L87 Difference]: Start difference. First operand 76209 states and 109254 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:26,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:48:26,927 INFO L93 Difference]: Finished difference Result 147437 states and 210968 transitions. [2024-11-08 16:48:26,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:48:26,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 169 [2024-11-08 16:48:26,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:48:27,033 INFO L225 Difference]: With dead ends: 147437 [2024-11-08 16:48:27,033 INFO L226 Difference]: Without dead ends: 71339 [2024-11-08 16:48:27,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:48:27,073 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 87 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:48:27,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 460 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:48:27,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71339 states. [2024-11-08 16:48:27,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71339 to 69945. [2024-11-08 16:48:28,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69945 states, 69944 states have (on average 1.4227095962484273) internal successors, (99510), 69944 states have internal predecessors, (99510), 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) [2024-11-08 16:48:28,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69945 states to 69945 states and 99510 transitions. [2024-11-08 16:48:28,082 INFO L78 Accepts]: Start accepts. Automaton has 69945 states and 99510 transitions. Word has length 169 [2024-11-08 16:48:28,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:48:28,083 INFO L471 AbstractCegarLoop]: Abstraction has 69945 states and 99510 transitions. [2024-11-08 16:48:28,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:28,083 INFO L276 IsEmpty]: Start isEmpty. Operand 69945 states and 99510 transitions. [2024-11-08 16:48:28,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-08 16:48:28,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:28,093 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:28,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-08 16:48:28,094 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:48:28,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:28,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1902499464, now seen corresponding path program 1 times [2024-11-08 16:48:28,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:28,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679655203] [2024-11-08 16:48:28,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:28,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:28,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:28,316 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-08 16:48:28,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:48:28,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679655203] [2024-11-08 16:48:28,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679655203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:48:28,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:48:28,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:48:28,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034004871] [2024-11-08 16:48:28,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:48:28,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:48:28,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:48:28,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:48:28,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:48:28,319 INFO L87 Difference]: Start difference. First operand 69945 states and 99510 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:29,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:48:29,051 INFO L93 Difference]: Finished difference Result 134909 states and 191480 transitions. [2024-11-08 16:48:29,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:48:29,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 170 [2024-11-08 16:48:29,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:48:29,133 INFO L225 Difference]: With dead ends: 134909 [2024-11-08 16:48:29,133 INFO L226 Difference]: Without dead ends: 65075 [2024-11-08 16:48:29,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:48:29,166 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 80 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:48:29,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 461 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:48:29,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65075 states. [2024-11-08 16:48:29,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65075 to 63681. [2024-11-08 16:48:30,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63681 states, 63680 states have (on average 1.4096419597989949) internal successors, (89766), 63680 states have internal predecessors, (89766), 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) [2024-11-08 16:48:30,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63681 states to 63681 states and 89766 transitions. [2024-11-08 16:48:30,112 INFO L78 Accepts]: Start accepts. Automaton has 63681 states and 89766 transitions. Word has length 170 [2024-11-08 16:48:30,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:48:30,112 INFO L471 AbstractCegarLoop]: Abstraction has 63681 states and 89766 transitions. [2024-11-08 16:48:30,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:30,112 INFO L276 IsEmpty]: Start isEmpty. Operand 63681 states and 89766 transitions. [2024-11-08 16:48:30,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-08 16:48:30,121 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:30,121 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:30,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-08 16:48:30,122 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:48:30,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:30,122 INFO L85 PathProgramCache]: Analyzing trace with hash -247744783, now seen corresponding path program 1 times [2024-11-08 16:48:30,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:30,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843604092] [2024-11-08 16:48:30,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:30,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:30,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:30,330 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 16:48:30,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:48:30,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843604092] [2024-11-08 16:48:30,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843604092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:48:30,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:48:30,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:48:30,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035268995] [2024-11-08 16:48:30,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:48:30,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:48:30,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:48:30,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:48:30,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:48:30,333 INFO L87 Difference]: Start difference. First operand 63681 states and 89766 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:30,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:48:30,652 INFO L93 Difference]: Finished difference Result 122381 states and 171992 transitions. [2024-11-08 16:48:30,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:48:30,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 171 [2024-11-08 16:48:30,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:48:30,707 INFO L225 Difference]: With dead ends: 122381 [2024-11-08 16:48:30,707 INFO L226 Difference]: Without dead ends: 58811 [2024-11-08 16:48:30,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:48:30,734 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 73 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:48:30,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 462 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:48:30,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58811 states. [2024-11-08 16:48:31,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58811 to 57417. [2024-11-08 16:48:31,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57417 states, 57416 states have (on average 1.3937230040406856) internal successors, (80022), 57416 states have internal predecessors, (80022), 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) [2024-11-08 16:48:31,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57417 states to 57417 states and 80022 transitions. [2024-11-08 16:48:31,924 INFO L78 Accepts]: Start accepts. Automaton has 57417 states and 80022 transitions. Word has length 171 [2024-11-08 16:48:31,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:48:31,925 INFO L471 AbstractCegarLoop]: Abstraction has 57417 states and 80022 transitions. [2024-11-08 16:48:31,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:48:31,925 INFO L276 IsEmpty]: Start isEmpty. Operand 57417 states and 80022 transitions. [2024-11-08 16:48:31,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-08 16:48:31,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:31,931 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:31,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-08 16:48:31,931 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:48:31,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:31,932 INFO L85 PathProgramCache]: Analyzing trace with hash -497965922, now seen corresponding path program 1 times [2024-11-08 16:48:31,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:31,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352395273] [2024-11-08 16:48:31,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:31,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:31,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:32,211 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 16:48:32,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:48:32,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352395273] [2024-11-08 16:48:32,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352395273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:48:32,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:48:32,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:48:32,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16142621] [2024-11-08 16:48:32,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:48:32,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:48:32,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:48:32,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:48:32,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:48:32,216 INFO L87 Difference]: Start difference. First operand 57417 states and 80022 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2024-11-08 16:48:33,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:48:33,288 INFO L93 Difference]: Finished difference Result 166925 states and 231480 transitions. [2024-11-08 16:48:33,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:48:33,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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 172 [2024-11-08 16:48:33,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:48:33,397 INFO L225 Difference]: With dead ends: 166925 [2024-11-08 16:48:33,397 INFO L226 Difference]: Without dead ends: 109619 [2024-11-08 16:48:33,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:48:33,421 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 66 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:48:33,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 463 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:48:33,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109619 states. [2024-11-08 16:48:34,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109619 to 103121. [2024-11-08 16:48:34,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103121 states, 103120 states have (on average 1.37988750969744) internal successors, (142294), 103120 states have internal predecessors, (142294), 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) [2024-11-08 16:48:34,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103121 states to 103121 states and 142294 transitions. [2024-11-08 16:48:34,710 INFO L78 Accepts]: Start accepts. Automaton has 103121 states and 142294 transitions. Word has length 172 [2024-11-08 16:48:34,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:48:34,710 INFO L471 AbstractCegarLoop]: Abstraction has 103121 states and 142294 transitions. [2024-11-08 16:48:34,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2024-11-08 16:48:34,711 INFO L276 IsEmpty]: Start isEmpty. Operand 103121 states and 142294 transitions. [2024-11-08 16:48:34,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-08 16:48:34,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:34,715 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:34,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-08 16:48:34,715 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:48:34,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:34,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1624774222, now seen corresponding path program 1 times [2024-11-08 16:48:34,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:34,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867325062] [2024-11-08 16:48:34,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:34,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:34,882 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:34,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:48:34,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867325062] [2024-11-08 16:48:34,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867325062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:48:34,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:48:34,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:48:34,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034362165] [2024-11-08 16:48:34,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:48:34,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:48:34,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:48:34,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:48:34,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:48:34,884 INFO L87 Difference]: Start difference. First operand 103121 states and 142294 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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) [2024-11-08 16:48:35,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:48:35,348 INFO L93 Difference]: Finished difference Result 180416 states and 248666 transitions. [2024-11-08 16:48:36,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:48:36,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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 173 [2024-11-08 16:48:36,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:48:36,300 INFO L225 Difference]: With dead ends: 180416 [2024-11-08 16:48:36,301 INFO L226 Difference]: Without dead ends: 77406 [2024-11-08 16:48:36,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:48:36,345 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 97 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:48:36,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 433 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:48:36,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77406 states. [2024-11-08 16:48:36,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77406 to 76476. [2024-11-08 16:48:37,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76476 states, 76475 states have (on average 1.3648251062438705) internal successors, (104375), 76475 states have internal predecessors, (104375), 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) [2024-11-08 16:48:37,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76476 states to 76476 states and 104375 transitions. [2024-11-08 16:48:37,650 INFO L78 Accepts]: Start accepts. Automaton has 76476 states and 104375 transitions. Word has length 173 [2024-11-08 16:48:37,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:48:37,650 INFO L471 AbstractCegarLoop]: Abstraction has 76476 states and 104375 transitions. [2024-11-08 16:48:37,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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) [2024-11-08 16:48:37,651 INFO L276 IsEmpty]: Start isEmpty. Operand 76476 states and 104375 transitions. [2024-11-08 16:48:37,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-08 16:48:37,657 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:37,658 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:37,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-08 16:48:37,658 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:48:37,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:37,659 INFO L85 PathProgramCache]: Analyzing trace with hash -717454896, now seen corresponding path program 1 times [2024-11-08 16:48:37,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:37,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470959529] [2024-11-08 16:48:37,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:37,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:37,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:38,649 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:38,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:48:38,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470959529] [2024-11-08 16:48:38,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470959529] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:48:38,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824836867] [2024-11-08 16:48:38,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:38,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:48:38,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ed468f9-1659-44e2-9db7-5169fc055a0e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:48:38,653 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ed468f9-1659-44e2-9db7-5169fc055a0e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:48:38,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ed468f9-1659-44e2-9db7-5169fc055a0e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:48:39,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:48:39,009 INFO L255 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 16:48:39,027 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:48:41,161 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:41,162 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:48:44,040 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:48:44,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824836867] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:48:44,041 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:48:44,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 30 [2024-11-08 16:48:44,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614278197] [2024-11-08 16:48:44,042 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:48:44,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-08 16:48:44,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:48:44,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-08 16:48:44,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=822, Unknown=0, NotChecked=0, Total=930 [2024-11-08 16:48:44,045 INFO L87 Difference]: Start difference. First operand 76476 states and 104375 transitions. Second operand has 31 states, 31 states have (on average 15.903225806451612) internal successors, (493), 30 states have internal predecessors, (493), 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) [2024-11-08 16:49:01,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:49:01,046 INFO L93 Difference]: Finished difference Result 759026 states and 1036859 transitions. [2024-11-08 16:49:01,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2024-11-08 16:49:01,047 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 15.903225806451612) internal successors, (493), 30 states have internal predecessors, (493), 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 173 [2024-11-08 16:49:01,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:49:01,825 INFO L225 Difference]: With dead ends: 759026 [2024-11-08 16:49:01,825 INFO L226 Difference]: Without dead ends: 682704 [2024-11-08 16:49:01,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 504 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11063 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=4436, Invalid=28144, Unknown=0, NotChecked=0, Total=32580 [2024-11-08 16:49:01,947 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 6642 mSDsluCounter, 4089 mSDsCounter, 0 mSdLazyCounter, 5597 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6642 SdHoareTripleChecker+Valid, 4381 SdHoareTripleChecker+Invalid, 5697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 5597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:49:01,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6642 Valid, 4381 Invalid, 5697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 5597 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-08 16:49:03,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682704 states. [2024-11-08 16:49:08,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682704 to 429731. [2024-11-08 16:49:08,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429731 states, 429730 states have (on average 1.3589579503409117) internal successors, (583985), 429730 states have internal predecessors, (583985), 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) [2024-11-08 16:49:10,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429731 states to 429731 states and 583985 transitions. [2024-11-08 16:49:10,426 INFO L78 Accepts]: Start accepts. Automaton has 429731 states and 583985 transitions. Word has length 173 [2024-11-08 16:49:10,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:49:10,428 INFO L471 AbstractCegarLoop]: Abstraction has 429731 states and 583985 transitions. [2024-11-08 16:49:10,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 15.903225806451612) internal successors, (493), 30 states have internal predecessors, (493), 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) [2024-11-08 16:49:10,428 INFO L276 IsEmpty]: Start isEmpty. Operand 429731 states and 583985 transitions. [2024-11-08 16:49:10,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-08 16:49:10,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:49:10,452 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:49:10,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ed468f9-1659-44e2-9db7-5169fc055a0e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 16:49:10,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ed468f9-1659-44e2-9db7-5169fc055a0e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:49:10,654 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:49:10,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:49:10,655 INFO L85 PathProgramCache]: Analyzing trace with hash -53933082, now seen corresponding path program 1 times [2024-11-08 16:49:10,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:49:10,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309351624] [2024-11-08 16:49:10,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:49:10,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:49:10,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:49:11,442 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:49:11,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:49:11,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309351624] [2024-11-08 16:49:11,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309351624] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:49:11,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586544780] [2024-11-08 16:49:11,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:49:11,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:49:11,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ed468f9-1659-44e2-9db7-5169fc055a0e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:49:11,446 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ed468f9-1659-44e2-9db7-5169fc055a0e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:49:11,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ed468f9-1659-44e2-9db7-5169fc055a0e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 16:49:11,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:49:11,733 INFO L255 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 16:49:11,739 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:49:13,864 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:49:13,864 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:49:16,268 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:49:16,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586544780] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:49:16,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:49:16,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2024-11-08 16:49:16,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731349483] [2024-11-08 16:49:16,269 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:49:16,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-08 16:49:16,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:49:16,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-08 16:49:16,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-08 16:49:16,272 INFO L87 Difference]: Start difference. First operand 429731 states and 583985 transitions. Second operand has 31 states, 31 states have (on average 15.838709677419354) internal successors, (491), 30 states have internal predecessors, (491), 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)