./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.2.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/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_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.2.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/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 64bit --witnessprinter.graph.data.programhash cf781dc2288a00f369934df75df908cdb6dbb08527402be5afe46a5cc4e19cf1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:57:40,049 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:57:40,134 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-08 16:57:40,138 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:57:40,139 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:57:40,170 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:57:40,170 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:57:40,171 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:57:40,171 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:57:40,172 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:57:40,172 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:57:40,173 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:57:40,173 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:57:40,174 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:57:40,174 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:57:40,175 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:57:40,175 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:57:40,175 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:57:40,176 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:57:40,176 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:57:40,177 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:57:40,177 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:57:40,178 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:57:40,178 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:57:40,179 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:57:40,179 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:57:40,179 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:57:40,180 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:57:40,180 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:57:40,180 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:57:40,181 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:57:40,181 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:57:40,182 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:57:40,182 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:57:40,183 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:57:40,183 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:57:40,183 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:57:40,184 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:57:40,184 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:57:40,184 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_d8612a8f-0e65-4038-860e-3f4deb68a28b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf781dc2288a00f369934df75df908cdb6dbb08527402be5afe46a5cc4e19cf1 [2024-11-08 16:57:40,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:57:40,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:57:40,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:57:40,525 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:57:40,526 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:57:40,527 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.2.prop1-back-serstep.c Unable to find full path for "g++" [2024-11-08 16:57:42,496 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:57:42,855 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:57:42,855 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.2.prop1-back-serstep.c [2024-11-08 16:57:42,872 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/data/1b68cc127/4ba431bb9b744c3fb1e146395e07fba6/FLAGbe068e91b [2024-11-08 16:57:42,896 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/data/1b68cc127/4ba431bb9b744c3fb1e146395e07fba6 [2024-11-08 16:57:42,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:57:42,900 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:57:42,901 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:57:42,901 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:57:42,907 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:57:42,908 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:57:42" (1/1) ... [2024-11-08 16:57:42,910 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f193342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:42, skipping insertion in model container [2024-11-08 16:57:42,912 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:57:42" (1/1) ... [2024-11-08 16:57:42,969 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:57:43,225 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_d8612a8f-0e65-4038-860e-3f4deb68a28b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.2.prop1-back-serstep.c[1174,1187] [2024-11-08 16:57:43,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:57:43,437 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:57:43,451 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_d8612a8f-0e65-4038-860e-3f4deb68a28b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.2.prop1-back-serstep.c[1174,1187] [2024-11-08 16:57:43,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:57:43,643 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:57:43,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:43 WrapperNode [2024-11-08 16:57:43,644 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:57:43,645 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:57:43,645 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:57:43,645 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:57:43,652 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:43" (1/1) ... [2024-11-08 16:57:43,686 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:43" (1/1) ... [2024-11-08 16:57:44,040 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1950 [2024-11-08 16:57:44,041 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:57:44,042 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:57:44,043 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:57:44,043 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:57:44,059 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:43" (1/1) ... [2024-11-08 16:57:44,061 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:43" (1/1) ... [2024-11-08 16:57:44,099 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:43" (1/1) ... [2024-11-08 16:57:44,170 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 16:57:44,174 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:43" (1/1) ... [2024-11-08 16:57:44,174 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:43" (1/1) ... [2024-11-08 16:57:44,246 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:43" (1/1) ... [2024-11-08 16:57:44,271 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:43" (1/1) ... [2024-11-08 16:57:44,287 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:43" (1/1) ... [2024-11-08 16:57:44,297 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:43" (1/1) ... [2024-11-08 16:57:44,325 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:57:44,326 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:57:44,326 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:57:44,326 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:57:44,328 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:43" (1/1) ... [2024-11-08 16:57:44,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:57:44,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:57:44,359 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:57:44,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:57:44,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:57:44,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:57:44,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:57:44,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:57:44,602 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:57:44,605 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:57:47,412 INFO L? ?]: Removed 993 outVars from TransFormulas that were not future-live. [2024-11-08 16:57:47,412 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:57:47,472 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:57:47,476 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 16:57:47,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:57:47 BoogieIcfgContainer [2024-11-08 16:57:47,476 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:57:47,480 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:57:47,484 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:57:47,487 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:57:47,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:57:42" (1/3) ... [2024-11-08 16:57:47,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc37fd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:57:47, skipping insertion in model container [2024-11-08 16:57:47,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:43" (2/3) ... [2024-11-08 16:57:47,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc37fd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:57:47, skipping insertion in model container [2024-11-08 16:57:47,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:57:47" (3/3) ... [2024-11-08 16:57:47,493 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.adding.2.prop1-back-serstep.c [2024-11-08 16:57:47,513 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:57:47,514 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 16:57:47,624 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:57:47,630 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;@7c046e35, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:57:47,630 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 16:57:47,637 INFO L276 IsEmpty]: Start isEmpty. Operand has 687 states, 685 states have (on average 1.5021897810218978) internal successors, (1029), 686 states have internal predecessors, (1029), 0 states have call successors, (0), 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 16:57:47,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-08 16:57:47,648 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:57:47,649 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] [2024-11-08 16:57:47,650 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:57:47,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:57:47,658 INFO L85 PathProgramCache]: Analyzing trace with hash -452349556, now seen corresponding path program 1 times [2024-11-08 16:57:47,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:57:47,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234813711] [2024-11-08 16:57:47,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:57:47,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:57:47,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:48,695 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 16:57:48,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:57:48,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234813711] [2024-11-08 16:57:48,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234813711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:57:48,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:57:48,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:57:48,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452589439] [2024-11-08 16:57:48,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:57:48,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:57:48,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:57:48,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:57:48,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:57:48,737 INFO L87 Difference]: Start difference. First operand has 687 states, 685 states have (on average 1.5021897810218978) internal successors, (1029), 686 states have internal predecessors, (1029), 0 states have call successors, (0), 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 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 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 16:57:48,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:57:48,910 INFO L93 Difference]: Finished difference Result 1326 states and 1990 transitions. [2024-11-08 16:57:48,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:57:48,913 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-11-08 16:57:48,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:57:48,928 INFO L225 Difference]: With dead ends: 1326 [2024-11-08 16:57:48,929 INFO L226 Difference]: Without dead ends: 685 [2024-11-08 16:57:48,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:57:48,947 INFO L432 NwaCegarLoop]: 1021 mSDtfsCounter, 0 mSDsluCounter, 2036 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3057 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:57:48,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3057 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:57:48,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2024-11-08 16:57:49,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 685. [2024-11-08 16:57:49,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 684 states have (on average 1.4985380116959064) internal successors, (1025), 684 states have internal predecessors, (1025), 0 states have call successors, (0), 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 16:57:49,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 1025 transitions. [2024-11-08 16:57:49,056 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 1025 transitions. Word has length 85 [2024-11-08 16:57:49,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:57:49,057 INFO L471 AbstractCegarLoop]: Abstraction has 685 states and 1025 transitions. [2024-11-08 16:57:49,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 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 16:57:49,059 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 1025 transitions. [2024-11-08 16:57:49,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-08 16:57:49,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:57:49,063 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] [2024-11-08 16:57:49,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:57:49,063 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:57:49,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:57:49,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1136238671, now seen corresponding path program 1 times [2024-11-08 16:57:49,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:57:49,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948689359] [2024-11-08 16:57:49,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:57:49,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:57:49,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:49,443 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 16:57:49,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:57:49,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948689359] [2024-11-08 16:57:49,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948689359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:57:49,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:57:49,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:57:49,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910821773] [2024-11-08 16:57:49,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:57:49,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:57:49,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:57:49,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:57:49,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:57:49,453 INFO L87 Difference]: Start difference. First operand 685 states and 1025 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 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 16:57:49,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:57:49,507 INFO L93 Difference]: Finished difference Result 1326 states and 1985 transitions. [2024-11-08 16:57:49,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:57:49,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2024-11-08 16:57:49,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:57:49,514 INFO L225 Difference]: With dead ends: 1326 [2024-11-08 16:57:49,514 INFO L226 Difference]: Without dead ends: 687 [2024-11-08 16:57:49,516 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:57:49,519 INFO L432 NwaCegarLoop]: 1021 mSDtfsCounter, 0 mSDsluCounter, 2032 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3053 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:57:49,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3053 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:57:49,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2024-11-08 16:57:49,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 687. [2024-11-08 16:57:49,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 686 states have (on average 1.4970845481049562) internal successors, (1027), 686 states have internal predecessors, (1027), 0 states have call successors, (0), 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 16:57:49,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 1027 transitions. [2024-11-08 16:57:49,549 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 1027 transitions. Word has length 86 [2024-11-08 16:57:49,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:57:49,552 INFO L471 AbstractCegarLoop]: Abstraction has 687 states and 1027 transitions. [2024-11-08 16:57:49,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 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 16:57:49,552 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 1027 transitions. [2024-11-08 16:57:49,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-08 16:57:49,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:57:49,557 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] [2024-11-08 16:57:49,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:57:49,558 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:57:49,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:57:49,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1961625851, now seen corresponding path program 1 times [2024-11-08 16:57:49,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:57:49,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707504277] [2024-11-08 16:57:49,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:57:49,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:57:49,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:49,942 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 16:57:49,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:57:49,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707504277] [2024-11-08 16:57:49,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707504277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:57:49,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:57:49,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:57:49,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748208769] [2024-11-08 16:57:49,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:57:49,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:57:49,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:57:49,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:57:49,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:57:49,949 INFO L87 Difference]: Start difference. First operand 687 states and 1027 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 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 16:57:50,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:57:50,036 INFO L93 Difference]: Finished difference Result 1955 states and 2926 transitions. [2024-11-08 16:57:50,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:57:50,037 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2024-11-08 16:57:50,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:57:50,043 INFO L225 Difference]: With dead ends: 1955 [2024-11-08 16:57:50,043 INFO L226 Difference]: Without dead ends: 1314 [2024-11-08 16:57:50,044 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:57:50,046 INFO L432 NwaCegarLoop]: 1019 mSDtfsCounter, 928 mSDsluCounter, 2984 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 4003 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:57:50,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [928 Valid, 4003 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:57:50,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2024-11-08 16:57:50,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 797. [2024-11-08 16:57:50,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 796 states have (on average 1.4962311557788945) internal successors, (1191), 796 states have internal predecessors, (1191), 0 states have call successors, (0), 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 16:57:50,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1191 transitions. [2024-11-08 16:57:50,076 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1191 transitions. Word has length 87 [2024-11-08 16:57:50,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:57:50,077 INFO L471 AbstractCegarLoop]: Abstraction has 797 states and 1191 transitions. [2024-11-08 16:57:50,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 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 16:57:50,078 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1191 transitions. [2024-11-08 16:57:50,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-08 16:57:50,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:57:50,094 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:50,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:57:50,095 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:57:50,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:57:50,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1308091145, now seen corresponding path program 1 times [2024-11-08 16:57:50,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:57:50,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013047731] [2024-11-08 16:57:50,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:57:50,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:57:50,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:51,333 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:57:51,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:57:51,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013047731] [2024-11-08 16:57:51,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013047731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:57:51,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:57:51,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:57:51,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749573532] [2024-11-08 16:57:51,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:57:51,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:57:51,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:57:51,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:57:51,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:57:51,340 INFO L87 Difference]: Start difference. First operand 797 states and 1191 transitions. Second operand has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 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 16:57:51,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:57:51,373 INFO L93 Difference]: Finished difference Result 1439 states and 2152 transitions. [2024-11-08 16:57:51,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:57:51,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 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 392 [2024-11-08 16:57:51,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:57:51,378 INFO L225 Difference]: With dead ends: 1439 [2024-11-08 16:57:51,378 INFO L226 Difference]: Without dead ends: 798 [2024-11-08 16:57:51,381 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 16:57:51,382 INFO L432 NwaCegarLoop]: 1022 mSDtfsCounter, 0 mSDsluCounter, 1016 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2038 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:57:51,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2038 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:57:51,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-11-08 16:57:51,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 798. [2024-11-08 16:57:51,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 797 states have (on average 1.4956085319949812) internal successors, (1192), 797 states have internal predecessors, (1192), 0 states have call successors, (0), 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 16:57:51,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1192 transitions. [2024-11-08 16:57:51,403 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1192 transitions. Word has length 392 [2024-11-08 16:57:51,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:57:51,405 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1192 transitions. [2024-11-08 16:57:51,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 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 16:57:51,406 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1192 transitions. [2024-11-08 16:57:51,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-08 16:57:51,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:57:51,414 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:51,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:57:51,415 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:57:51,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:57:51,416 INFO L85 PathProgramCache]: Analyzing trace with hash 960630714, now seen corresponding path program 1 times [2024-11-08 16:57:51,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:57:51,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036180821] [2024-11-08 16:57:51,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:57:51,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:57:51,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:52,838 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-08 16:57:52,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:57:52,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036180821] [2024-11-08 16:57:52,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036180821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:57:52,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:57:52,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:57:52,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143386740] [2024-11-08 16:57:52,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:57:52,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:57:52,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:57:52,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:57:52,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:57:52,842 INFO L87 Difference]: Start difference. First operand 798 states and 1192 transitions. Second operand has 5 states, 5 states have (on average 67.8) internal successors, (339), 5 states have internal predecessors, (339), 0 states have call successors, (0), 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 16:57:52,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:57:52,893 INFO L93 Difference]: Finished difference Result 1444 states and 2157 transitions. [2024-11-08 16:57:52,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:57:52,894 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 67.8) internal successors, (339), 5 states have internal predecessors, (339), 0 states have call successors, (0), 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 392 [2024-11-08 16:57:52,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:57:52,899 INFO L225 Difference]: With dead ends: 1444 [2024-11-08 16:57:52,899 INFO L226 Difference]: Without dead ends: 802 [2024-11-08 16:57:52,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:57:52,901 INFO L432 NwaCegarLoop]: 1021 mSDtfsCounter, 0 mSDsluCounter, 2032 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3053 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:57:52,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3053 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:57:52,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2024-11-08 16:57:52,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 798. [2024-11-08 16:57:52,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 797 states have (on average 1.4956085319949812) internal successors, (1192), 797 states have internal predecessors, (1192), 0 states have call successors, (0), 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 16:57:52,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1192 transitions. [2024-11-08 16:57:52,920 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1192 transitions. Word has length 392 [2024-11-08 16:57:52,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:57:52,921 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1192 transitions. [2024-11-08 16:57:52,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.8) internal successors, (339), 5 states have internal predecessors, (339), 0 states have call successors, (0), 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 16:57:52,922 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1192 transitions. [2024-11-08 16:57:52,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-08 16:57:52,928 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:57:52,929 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:52,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:57:52,929 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:57:52,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:57:52,930 INFO L85 PathProgramCache]: Analyzing trace with hash 623668387, now seen corresponding path program 1 times [2024-11-08 16:57:52,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:57:52,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560187936] [2024-11-08 16:57:52,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:57:52,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:57:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:54,456 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:57:54,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:57:54,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560187936] [2024-11-08 16:57:54,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560187936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:57:54,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:57:54,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:57:54,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495745313] [2024-11-08 16:57:54,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:57:54,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:57:54,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:57:54,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:57:54,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:57:54,460 INFO L87 Difference]: Start difference. First operand 798 states and 1192 transitions. Second operand has 4 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 0 states have call successors, (0), 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 16:57:55,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:57:55,084 INFO L93 Difference]: Finished difference Result 2000 states and 2989 transitions. [2024-11-08 16:57:55,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:57:55,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 0 states have call successors, (0), 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 393 [2024-11-08 16:57:55,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:57:55,089 INFO L225 Difference]: With dead ends: 2000 [2024-11-08 16:57:55,089 INFO L226 Difference]: Without dead ends: 798 [2024-11-08 16:57:55,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 16:57:55,091 INFO L432 NwaCegarLoop]: 1136 mSDtfsCounter, 502 mSDsluCounter, 1903 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 3039 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:57:55,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [502 Valid, 3039 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 16:57:55,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-11-08 16:57:55,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 798. [2024-11-08 16:57:55,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 797 states have (on average 1.4943538268506902) internal successors, (1191), 797 states have internal predecessors, (1191), 0 states have call successors, (0), 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 16:57:55,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1191 transitions. [2024-11-08 16:57:55,114 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1191 transitions. Word has length 393 [2024-11-08 16:57:55,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:57:55,115 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1191 transitions. [2024-11-08 16:57:55,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 0 states have call successors, (0), 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 16:57:55,119 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1191 transitions. [2024-11-08 16:57:55,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-11-08 16:57:55,126 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:57:55,127 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:55,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:57:55,127 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:57:55,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:57:55,128 INFO L85 PathProgramCache]: Analyzing trace with hash 176421979, now seen corresponding path program 1 times [2024-11-08 16:57:55,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:57:55,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181257166] [2024-11-08 16:57:55,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:57:55,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:57:55,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:56,684 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:57:56,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:57:56,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181257166] [2024-11-08 16:57:56,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181257166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:57:56,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:57:56,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:57:56,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357049389] [2024-11-08 16:57:56,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:57:56,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:57:56,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:57:56,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:57:56,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:57:56,688 INFO L87 Difference]: Start difference. First operand 798 states and 1191 transitions. Second operand has 6 states, 6 states have (on average 65.66666666666667) internal successors, (394), 6 states have internal predecessors, (394), 0 states have call successors, (0), 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 16:57:57,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:57:57,187 INFO L93 Difference]: Finished difference Result 2061 states and 3074 transitions. [2024-11-08 16:57:57,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:57:57,188 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 65.66666666666667) internal successors, (394), 6 states have internal predecessors, (394), 0 states have call successors, (0), 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 394 [2024-11-08 16:57:57,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:57:57,192 INFO L225 Difference]: With dead ends: 2061 [2024-11-08 16:57:57,192 INFO L226 Difference]: Without dead ends: 1298 [2024-11-08 16:57:57,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:57:57,194 INFO L432 NwaCegarLoop]: 1010 mSDtfsCounter, 1105 mSDsluCounter, 3737 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1105 SdHoareTripleChecker+Valid, 4747 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:57:57,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1105 Valid, 4747 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 16:57:57,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states. [2024-11-08 16:57:57,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 798. [2024-11-08 16:57:57,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 797 states have (on average 1.493099121706399) internal successors, (1190), 797 states have internal predecessors, (1190), 0 states have call successors, (0), 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 16:57:57,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1190 transitions. [2024-11-08 16:57:57,216 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1190 transitions. Word has length 394 [2024-11-08 16:57:57,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:57:57,217 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1190 transitions. [2024-11-08 16:57:57,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.66666666666667) internal successors, (394), 6 states have internal predecessors, (394), 0 states have call successors, (0), 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 16:57:57,218 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1190 transitions. [2024-11-08 16:57:57,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-11-08 16:57:57,224 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:57:57,225 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:57,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 16:57:57,226 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:57:57,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:57:57,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1645646245, now seen corresponding path program 1 times [2024-11-08 16:57:57,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:57:57,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601470008] [2024-11-08 16:57:57,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:57:57,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:57:57,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:58,185 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-08 16:57:58,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:57:58,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601470008] [2024-11-08 16:57:58,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601470008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:57:58,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:57:58,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:57:58,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554508731] [2024-11-08 16:57:58,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:57:58,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:57:58,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:57:58,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:57:58,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:57:58,191 INFO L87 Difference]: Start difference. First operand 798 states and 1190 transitions. Second operand has 4 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 0 states have call successors, (0), 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 16:57:58,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:57:58,238 INFO L93 Difference]: Finished difference Result 1448 states and 2160 transitions. [2024-11-08 16:57:58,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:57:58,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 0 states have call successors, (0), 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 395 [2024-11-08 16:57:58,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:57:58,243 INFO L225 Difference]: With dead ends: 1448 [2024-11-08 16:57:58,243 INFO L226 Difference]: Without dead ends: 802 [2024-11-08 16:57:58,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:57:58,245 INFO L432 NwaCegarLoop]: 1020 mSDtfsCounter, 0 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3050 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:57:58,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3050 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:57:58,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2024-11-08 16:57:58,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 800. [2024-11-08 16:57:58,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 799 states have (on average 1.4918648310387985) internal successors, (1192), 799 states have internal predecessors, (1192), 0 states have call successors, (0), 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 16:57:58,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1192 transitions. [2024-11-08 16:57:58,266 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1192 transitions. Word has length 395 [2024-11-08 16:57:58,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:57:58,267 INFO L471 AbstractCegarLoop]: Abstraction has 800 states and 1192 transitions. [2024-11-08 16:57:58,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 0 states have call successors, (0), 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 16:57:58,267 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1192 transitions. [2024-11-08 16:57:58,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2024-11-08 16:57:58,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:57:58,275 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:58,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 16:57:58,275 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:57:58,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:57:58,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1638767675, now seen corresponding path program 1 times [2024-11-08 16:57:58,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:57:58,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314402373] [2024-11-08 16:57:58,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:57:58,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:57:58,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:59,307 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-08 16:57:59,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:57:59,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314402373] [2024-11-08 16:57:59,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314402373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:57:59,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:57:59,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:57:59,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887818924] [2024-11-08 16:57:59,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:57:59,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:57:59,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:57:59,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:57:59,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:57:59,311 INFO L87 Difference]: Start difference. First operand 800 states and 1192 transitions. Second operand has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 0 states have call successors, (0), 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 16:57:59,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:57:59,363 INFO L93 Difference]: Finished difference Result 1456 states and 2170 transitions. [2024-11-08 16:57:59,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:57:59,364 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 0 states have call successors, (0), 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 396 [2024-11-08 16:57:59,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:57:59,370 INFO L225 Difference]: With dead ends: 1456 [2024-11-08 16:57:59,370 INFO L226 Difference]: Without dead ends: 804 [2024-11-08 16:57:59,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:57:59,372 INFO L432 NwaCegarLoop]: 1020 mSDtfsCounter, 0 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3050 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:57:59,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3050 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:57:59,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2024-11-08 16:57:59,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 802. [2024-11-08 16:57:59,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 801 states have (on average 1.4906367041198503) internal successors, (1194), 801 states have internal predecessors, (1194), 0 states have call successors, (0), 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 16:57:59,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1194 transitions. [2024-11-08 16:57:59,394 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1194 transitions. Word has length 396 [2024-11-08 16:57:59,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:57:59,395 INFO L471 AbstractCegarLoop]: Abstraction has 802 states and 1194 transitions. [2024-11-08 16:57:59,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 0 states have call successors, (0), 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 16:57:59,396 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1194 transitions. [2024-11-08 16:57:59,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2024-11-08 16:57:59,403 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:57:59,404 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:59,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 16:57:59,404 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:57:59,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:57:59,405 INFO L85 PathProgramCache]: Analyzing trace with hash 625708450, now seen corresponding path program 1 times [2024-11-08 16:57:59,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:57:59,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714239984] [2024-11-08 16:57:59,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:57:59,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:57:59,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:00,487 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-08 16:58:00,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:00,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714239984] [2024-11-08 16:58:00,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714239984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:00,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:58:00,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:58:00,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503878537] [2024-11-08 16:58:00,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:00,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:58:00,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:00,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:58:00,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:58:00,491 INFO L87 Difference]: Start difference. First operand 802 states and 1194 transitions. Second operand has 5 states, 5 states have (on average 70.2) internal successors, (351), 5 states have internal predecessors, (351), 0 states have call successors, (0), 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 16:58:00,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:58:00,542 INFO L93 Difference]: Finished difference Result 1464 states and 2180 transitions. [2024-11-08 16:58:00,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:58:00,543 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.2) internal successors, (351), 5 states have internal predecessors, (351), 0 states have call successors, (0), 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 397 [2024-11-08 16:58:00,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:58:00,547 INFO L225 Difference]: With dead ends: 1464 [2024-11-08 16:58:00,547 INFO L226 Difference]: Without dead ends: 806 [2024-11-08 16:58:00,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:58:00,549 INFO L432 NwaCegarLoop]: 1020 mSDtfsCounter, 0 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3050 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:58:00,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3050 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:58:00,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2024-11-08 16:58:00,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 804. [2024-11-08 16:58:00,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 803 states have (on average 1.489414694894147) internal successors, (1196), 803 states have internal predecessors, (1196), 0 states have call successors, (0), 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 16:58:00,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1196 transitions. [2024-11-08 16:58:00,567 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1196 transitions. Word has length 397 [2024-11-08 16:58:00,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:58:00,567 INFO L471 AbstractCegarLoop]: Abstraction has 804 states and 1196 transitions. [2024-11-08 16:58:00,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.2) internal successors, (351), 5 states have internal predecessors, (351), 0 states have call successors, (0), 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 16:58:00,568 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1196 transitions. [2024-11-08 16:58:00,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2024-11-08 16:58:00,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:58:00,575 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:00,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 16:58:00,576 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:58:00,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:00,577 INFO L85 PathProgramCache]: Analyzing trace with hash 909167732, now seen corresponding path program 1 times [2024-11-08 16:58:00,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:00,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811630008] [2024-11-08 16:58:00,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:00,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:00,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:01,599 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-08 16:58:01,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:01,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811630008] [2024-11-08 16:58:01,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811630008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:01,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:58:01,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:58:01,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886039247] [2024-11-08 16:58:01,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:01,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:58:01,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:01,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:58:01,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:58:01,603 INFO L87 Difference]: Start difference. First operand 804 states and 1196 transitions. Second operand has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 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 16:58:01,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:58:01,657 INFO L93 Difference]: Finished difference Result 1480 states and 2202 transitions. [2024-11-08 16:58:01,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:58:01,658 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 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 398 [2024-11-08 16:58:01,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:58:01,662 INFO L225 Difference]: With dead ends: 1480 [2024-11-08 16:58:01,662 INFO L226 Difference]: Without dead ends: 816 [2024-11-08 16:58:01,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:58:01,665 INFO L432 NwaCegarLoop]: 1020 mSDtfsCounter, 4 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3050 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:58:01,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3050 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:58:01,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2024-11-08 16:58:01,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 810. [2024-11-08 16:58:01,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 810 states, 809 states have (on average 1.4882571075401732) internal successors, (1204), 809 states have internal predecessors, (1204), 0 states have call successors, (0), 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 16:58:01,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 1204 transitions. [2024-11-08 16:58:01,688 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 1204 transitions. Word has length 398 [2024-11-08 16:58:01,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:58:01,689 INFO L471 AbstractCegarLoop]: Abstraction has 810 states and 1204 transitions. [2024-11-08 16:58:01,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 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 16:58:01,689 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 1204 transitions. [2024-11-08 16:58:01,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2024-11-08 16:58:01,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:58:01,699 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:01,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 16:58:01,700 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:58:01,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:01,700 INFO L85 PathProgramCache]: Analyzing trace with hash 2035820080, now seen corresponding path program 1 times [2024-11-08 16:58:01,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:01,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220113663] [2024-11-08 16:58:01,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:01,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:01,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:02,687 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-08 16:58:02,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:02,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220113663] [2024-11-08 16:58:02,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220113663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:02,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:58:02,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:58:02,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583313608] [2024-11-08 16:58:02,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:02,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:58:02,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:02,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:58:02,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:58:02,692 INFO L87 Difference]: Start difference. First operand 810 states and 1204 transitions. Second operand has 4 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 0 states have call successors, (0), 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 16:58:02,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:58:02,740 INFO L93 Difference]: Finished difference Result 1500 states and 2230 transitions. [2024-11-08 16:58:02,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:58:02,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 0 states have call successors, (0), 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 399 [2024-11-08 16:58:02,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:58:02,744 INFO L225 Difference]: With dead ends: 1500 [2024-11-08 16:58:02,744 INFO L226 Difference]: Without dead ends: 822 [2024-11-08 16:58:02,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:58:02,746 INFO L432 NwaCegarLoop]: 1020 mSDtfsCounter, 4 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3050 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:58:02,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3050 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:58:02,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2024-11-08 16:58:02,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 816. [2024-11-08 16:58:02,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 815 states have (on average 1.487116564417178) internal successors, (1212), 815 states have internal predecessors, (1212), 0 states have call successors, (0), 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 16:58:02,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1212 transitions. [2024-11-08 16:58:02,764 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1212 transitions. Word has length 399 [2024-11-08 16:58:02,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:58:02,765 INFO L471 AbstractCegarLoop]: Abstraction has 816 states and 1212 transitions. [2024-11-08 16:58:02,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 0 states have call successors, (0), 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 16:58:02,765 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1212 transitions. [2024-11-08 16:58:02,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2024-11-08 16:58:02,773 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:58:02,775 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:02,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 16:58:02,776 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:58:02,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:02,776 INFO L85 PathProgramCache]: Analyzing trace with hash 538445414, now seen corresponding path program 1 times [2024-11-08 16:58:02,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:02,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084373834] [2024-11-08 16:58:02,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:02,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:02,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:03,697 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-08 16:58:03,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:03,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084373834] [2024-11-08 16:58:03,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084373834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:03,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:58:03,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:58:03,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107319761] [2024-11-08 16:58:03,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:03,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:58:03,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:03,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:58:03,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:58:03,701 INFO L87 Difference]: Start difference. First operand 816 states and 1212 transitions. Second operand has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 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 16:58:03,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:58:03,748 INFO L93 Difference]: Finished difference Result 1512 states and 2246 transitions. [2024-11-08 16:58:03,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:58:03,748 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 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 400 [2024-11-08 16:58:03,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:58:03,752 INFO L225 Difference]: With dead ends: 1512 [2024-11-08 16:58:03,752 INFO L226 Difference]: Without dead ends: 820 [2024-11-08 16:58:03,753 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:58:03,754 INFO L432 NwaCegarLoop]: 1020 mSDtfsCounter, 0 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3050 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:58:03,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3050 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:58:03,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2024-11-08 16:58:03,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 818. [2024-11-08 16:58:03,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 817 states have (on average 1.4859241126070992) internal successors, (1214), 817 states have internal predecessors, (1214), 0 states have call successors, (0), 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 16:58:03,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1214 transitions. [2024-11-08 16:58:03,773 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1214 transitions. Word has length 400 [2024-11-08 16:58:03,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:58:03,774 INFO L471 AbstractCegarLoop]: Abstraction has 818 states and 1214 transitions. [2024-11-08 16:58:03,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 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 16:58:03,774 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1214 transitions. [2024-11-08 16:58:03,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2024-11-08 16:58:03,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:58:03,783 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:03,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 16:58:03,783 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:58:03,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:03,784 INFO L85 PathProgramCache]: Analyzing trace with hash 942088759, now seen corresponding path program 1 times [2024-11-08 16:58:03,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:03,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598409048] [2024-11-08 16:58:03,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:03,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:03,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:04,629 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-08 16:58:04,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:04,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598409048] [2024-11-08 16:58:04,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598409048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:04,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:58:04,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:58:04,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47751975] [2024-11-08 16:58:04,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:04,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:58:04,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:04,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:58:04,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:58:04,636 INFO L87 Difference]: Start difference. First operand 818 states and 1214 transitions. Second operand has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 0 states have call successors, (0), 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 16:58:04,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:58:04,704 INFO L93 Difference]: Finished difference Result 1520 states and 2256 transitions. [2024-11-08 16:58:04,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:58:04,704 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 0 states have call successors, (0), 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 401 [2024-11-08 16:58:04,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:58:04,708 INFO L225 Difference]: With dead ends: 1520 [2024-11-08 16:58:04,712 INFO L226 Difference]: Without dead ends: 822 [2024-11-08 16:58:04,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:58:04,713 INFO L432 NwaCegarLoop]: 1020 mSDtfsCounter, 0 mSDsluCounter, 2024 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3044 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:58:04,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3044 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:58:04,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2024-11-08 16:58:04,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 820. [2024-11-08 16:58:04,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 819 states have (on average 1.4847374847374848) internal successors, (1216), 819 states have internal predecessors, (1216), 0 states have call successors, (0), 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 16:58:04,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1216 transitions. [2024-11-08 16:58:04,737 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1216 transitions. Word has length 401 [2024-11-08 16:58:04,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:58:04,738 INFO L471 AbstractCegarLoop]: Abstraction has 820 states and 1216 transitions. [2024-11-08 16:58:04,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 0 states have call successors, (0), 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 16:58:04,739 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1216 transitions. [2024-11-08 16:58:04,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2024-11-08 16:58:04,742 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:58:04,742 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:04,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 16:58:04,743 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:58:04,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:04,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1634251231, now seen corresponding path program 1 times [2024-11-08 16:58:04,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:04,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999872387] [2024-11-08 16:58:04,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:04,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:04,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:05,707 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 16:58:05,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:05,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999872387] [2024-11-08 16:58:05,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999872387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:05,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:58:05,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:58:05,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282598662] [2024-11-08 16:58:05,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:05,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:58:05,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:05,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:58:05,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:58:05,711 INFO L87 Difference]: Start difference. First operand 820 states and 1216 transitions. Second operand has 4 states, 4 states have (on average 92.5) internal successors, (370), 4 states have internal predecessors, (370), 0 states have call successors, (0), 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 16:58:05,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:58:05,755 INFO L93 Difference]: Finished difference Result 1534 states and 2274 transitions. [2024-11-08 16:58:05,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:58:05,756 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 92.5) internal successors, (370), 4 states have internal predecessors, (370), 0 states have call successors, (0), 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 402 [2024-11-08 16:58:05,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:58:05,759 INFO L225 Difference]: With dead ends: 1534 [2024-11-08 16:58:05,759 INFO L226 Difference]: Without dead ends: 834 [2024-11-08 16:58:05,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:58:05,761 INFO L432 NwaCegarLoop]: 1020 mSDtfsCounter, 3 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3050 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:58:05,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3050 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:58:05,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-11-08 16:58:05,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 824. [2024-11-08 16:58:05,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 823 states have (on average 1.4848116646415552) internal successors, (1222), 823 states have internal predecessors, (1222), 0 states have call successors, (0), 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 16:58:05,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1222 transitions. [2024-11-08 16:58:05,778 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1222 transitions. Word has length 402 [2024-11-08 16:58:05,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:58:05,779 INFO L471 AbstractCegarLoop]: Abstraction has 824 states and 1222 transitions. [2024-11-08 16:58:05,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.5) internal successors, (370), 4 states have internal predecessors, (370), 0 states have call successors, (0), 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 16:58:05,779 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1222 transitions. [2024-11-08 16:58:05,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2024-11-08 16:58:05,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:58:05,783 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:05,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 16:58:05,783 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:58:05,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:05,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1681570622, now seen corresponding path program 1 times [2024-11-08 16:58:05,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:05,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185677198] [2024-11-08 16:58:05,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:05,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:05,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:06,613 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-08 16:58:06,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:06,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185677198] [2024-11-08 16:58:06,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185677198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:06,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:58:06,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:58:06,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162279933] [2024-11-08 16:58:06,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:06,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:58:06,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:06,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:58:06,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:58:06,618 INFO L87 Difference]: Start difference. First operand 824 states and 1222 transitions. Second operand has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 0 states have call successors, (0), 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 16:58:06,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:58:06,670 INFO L93 Difference]: Finished difference Result 1496 states and 2218 transitions. [2024-11-08 16:58:06,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:58:06,671 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 0 states have call successors, (0), 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 403 [2024-11-08 16:58:06,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:58:06,674 INFO L225 Difference]: With dead ends: 1496 [2024-11-08 16:58:06,674 INFO L226 Difference]: Without dead ends: 826 [2024-11-08 16:58:06,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:58:06,676 INFO L432 NwaCegarLoop]: 1022 mSDtfsCounter, 0 mSDsluCounter, 2025 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3047 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:58:06,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3047 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:58:06,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2024-11-08 16:58:06,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 826. [2024-11-08 16:58:06,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 826 states, 825 states have (on average 1.4836363636363636) internal successors, (1224), 825 states have internal predecessors, (1224), 0 states have call successors, (0), 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 16:58:06,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1224 transitions. [2024-11-08 16:58:06,694 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1224 transitions. Word has length 403 [2024-11-08 16:58:06,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:58:06,695 INFO L471 AbstractCegarLoop]: Abstraction has 826 states and 1224 transitions. [2024-11-08 16:58:06,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 0 states have call successors, (0), 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 16:58:06,696 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1224 transitions. [2024-11-08 16:58:06,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2024-11-08 16:58:06,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:58:06,701 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:06,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 16:58:06,701 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:58:06,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:06,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1790503000, now seen corresponding path program 1 times [2024-11-08 16:58:06,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:06,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792303974] [2024-11-08 16:58:06,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:06,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:07,867 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 34 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:07,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:07,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792303974] [2024-11-08 16:58:07,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792303974] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:58:07,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105132588] [2024-11-08 16:58:07,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:07,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:07,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:58:07,870 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:58:07,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:58:08,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:08,762 INFO L255 TraceCheckSpWp]: Trace formula consists of 1706 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 16:58:08,779 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:58:08,975 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 16:58:08,975 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:58:08,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105132588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:08,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:58:08,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-08 16:58:08,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825478730] [2024-11-08 16:58:08,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:08,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:58:08,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:08,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:58:08,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:58:08,979 INFO L87 Difference]: Start difference. First operand 826 states and 1224 transitions. Second operand has 6 states, 6 states have (on average 65.0) internal successors, (390), 6 states have internal predecessors, (390), 0 states have call successors, (0), 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 16:58:09,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:58:09,648 INFO L93 Difference]: Finished difference Result 2052 states and 3039 transitions. [2024-11-08 16:58:09,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:58:09,649 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 65.0) internal successors, (390), 6 states have internal predecessors, (390), 0 states have call successors, (0), 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 404 [2024-11-08 16:58:09,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:58:09,654 INFO L225 Difference]: With dead ends: 2052 [2024-11-08 16:58:09,654 INFO L226 Difference]: Without dead ends: 1380 [2024-11-08 16:58:09,655 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:58:09,656 INFO L432 NwaCegarLoop]: 858 mSDtfsCounter, 1797 mSDsluCounter, 2619 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1797 SdHoareTripleChecker+Valid, 3477 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:58:09,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1797 Valid, 3477 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 16:58:09,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2024-11-08 16:58:09,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 828. [2024-11-08 16:58:09,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 827 states have (on average 1.4812575574365174) internal successors, (1225), 827 states have internal predecessors, (1225), 0 states have call successors, (0), 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 16:58:09,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1225 transitions. [2024-11-08 16:58:09,676 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1225 transitions. Word has length 404 [2024-11-08 16:58:09,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:58:09,676 INFO L471 AbstractCegarLoop]: Abstraction has 828 states and 1225 transitions. [2024-11-08 16:58:09,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.0) internal successors, (390), 6 states have internal predecessors, (390), 0 states have call successors, (0), 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 16:58:09,677 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1225 transitions. [2024-11-08 16:58:09,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2024-11-08 16:58:09,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:58:09,680 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:09,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 16:58:09,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:09,881 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:58:09,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:09,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1295917834, now seen corresponding path program 1 times [2024-11-08 16:58:09,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:09,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600559344] [2024-11-08 16:58:09,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:09,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:10,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:10,865 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 35 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:10,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:10,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600559344] [2024-11-08 16:58:10,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600559344] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:58:10,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535396783] [2024-11-08 16:58:10,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:10,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:10,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:58:10,868 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:58:10,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 16:58:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:11,678 INFO L255 TraceCheckSpWp]: Trace formula consists of 1709 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 16:58:11,692 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:58:11,927 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 16:58:11,927 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:58:11,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535396783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:11,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:58:11,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-08 16:58:11,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871750880] [2024-11-08 16:58:11,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:11,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:58:11,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:11,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:58:11,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:58:11,931 INFO L87 Difference]: Start difference. First operand 828 states and 1225 transitions. Second operand has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 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 16:58:12,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:58:12,856 INFO L93 Difference]: Finished difference Result 2080 states and 3079 transitions. [2024-11-08 16:58:12,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:58:12,856 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 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 405 [2024-11-08 16:58:12,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:58:12,860 INFO L225 Difference]: With dead ends: 2080 [2024-11-08 16:58:12,861 INFO L226 Difference]: Without dead ends: 1392 [2024-11-08 16:58:12,862 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:58:12,862 INFO L432 NwaCegarLoop]: 859 mSDtfsCounter, 939 mSDsluCounter, 3362 mSDsCounter, 0 mSdLazyCounter, 927 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 4221 SdHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 16:58:12,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [939 Valid, 4221 Invalid, 939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 927 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 16:58:12,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2024-11-08 16:58:12,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 842. [2024-11-08 16:58:12,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 841 states have (on average 1.4756242568370987) internal successors, (1241), 841 states have internal predecessors, (1241), 0 states have call successors, (0), 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 16:58:12,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1241 transitions. [2024-11-08 16:58:12,883 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1241 transitions. Word has length 405 [2024-11-08 16:58:12,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:58:12,883 INFO L471 AbstractCegarLoop]: Abstraction has 842 states and 1241 transitions. [2024-11-08 16:58:12,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 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 16:58:12,884 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1241 transitions. [2024-11-08 16:58:12,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2024-11-08 16:58:12,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:58:12,887 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:12,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 16:58:13,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:13,089 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:58:13,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:13,089 INFO L85 PathProgramCache]: Analyzing trace with hash 805175221, now seen corresponding path program 1 times [2024-11-08 16:58:13,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:13,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218318721] [2024-11-08 16:58:13,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:13,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:13,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:14,012 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 35 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:14,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:14,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218318721] [2024-11-08 16:58:14,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218318721] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:58:14,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506114996] [2024-11-08 16:58:14,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:14,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:14,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:58:14,015 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:58:14,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 16:58:14,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:14,891 INFO L255 TraceCheckSpWp]: Trace formula consists of 1712 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 16:58:14,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:58:15,257 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:15,257 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:58:15,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506114996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:15,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:58:15,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-08 16:58:15,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018436701] [2024-11-08 16:58:15,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:15,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:58:15,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:15,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:58:15,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:58:15,264 INFO L87 Difference]: Start difference. First operand 842 states and 1241 transitions. Second operand has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 0 states have call successors, (0), 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 16:58:15,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:58:15,922 INFO L93 Difference]: Finished difference Result 2080 states and 3051 transitions. [2024-11-08 16:58:15,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:58:15,923 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 0 states have call successors, (0), 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 406 [2024-11-08 16:58:15,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:58:15,927 INFO L225 Difference]: With dead ends: 2080 [2024-11-08 16:58:15,927 INFO L226 Difference]: Without dead ends: 1408 [2024-11-08 16:58:15,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:58:15,929 INFO L432 NwaCegarLoop]: 1292 mSDtfsCounter, 573 mSDsluCounter, 4225 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 5517 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:58:15,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 5517 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 16:58:15,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1408 states. [2024-11-08 16:58:15,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1408 to 1087. [2024-11-08 16:58:15,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1087 states, 1086 states have (on average 1.4622467771639043) internal successors, (1588), 1086 states have internal predecessors, (1588), 0 states have call successors, (0), 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 16:58:15,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1588 transitions. [2024-11-08 16:58:15,952 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1588 transitions. Word has length 406 [2024-11-08 16:58:15,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:58:15,952 INFO L471 AbstractCegarLoop]: Abstraction has 1087 states and 1588 transitions. [2024-11-08 16:58:15,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 0 states have call successors, (0), 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 16:58:15,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1588 transitions. [2024-11-08 16:58:15,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2024-11-08 16:58:15,956 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:58:15,957 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:15,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 16:58:16,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:16,162 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:58:16,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:16,162 INFO L85 PathProgramCache]: Analyzing trace with hash 868578610, now seen corresponding path program 1 times [2024-11-08 16:58:16,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:16,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595316064] [2024-11-08 16:58:16,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:16,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:16,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:17,105 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 35 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:17,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:17,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595316064] [2024-11-08 16:58:17,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595316064] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:58:17,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113907282] [2024-11-08 16:58:17,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:17,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:17,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:58:17,109 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:58:17,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 16:58:17,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:17,889 INFO L255 TraceCheckSpWp]: Trace formula consists of 1715 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 16:58:17,897 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:58:18,118 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 16:58:18,118 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:58:18,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1113907282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:18,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:58:18,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-08 16:58:18,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520471531] [2024-11-08 16:58:18,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:18,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:58:18,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:18,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:58:18,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:58:18,122 INFO L87 Difference]: Start difference. First operand 1087 states and 1588 transitions. Second operand has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 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 16:58:18,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:58:18,919 INFO L93 Difference]: Finished difference Result 2599 states and 3808 transitions. [2024-11-08 16:58:18,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:58:18,919 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 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 407 [2024-11-08 16:58:18,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:58:18,923 INFO L225 Difference]: With dead ends: 2599 [2024-11-08 16:58:18,923 INFO L226 Difference]: Without dead ends: 1706 [2024-11-08 16:58:18,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:58:18,925 INFO L432 NwaCegarLoop]: 860 mSDtfsCounter, 936 mSDsluCounter, 3363 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 936 SdHoareTripleChecker+Valid, 4223 SdHoareTripleChecker+Invalid, 937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 16:58:18,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [936 Valid, 4223 Invalid, 937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 925 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 16:58:18,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2024-11-08 16:58:18,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1087. [2024-11-08 16:58:18,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1087 states, 1086 states have (on average 1.4585635359116023) internal successors, (1584), 1086 states have internal predecessors, (1584), 0 states have call successors, (0), 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 16:58:18,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1584 transitions. [2024-11-08 16:58:18,966 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1584 transitions. Word has length 407 [2024-11-08 16:58:18,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:58:18,966 INFO L471 AbstractCegarLoop]: Abstraction has 1087 states and 1584 transitions. [2024-11-08 16:58:18,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 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 16:58:18,971 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1584 transitions. [2024-11-08 16:58:18,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2024-11-08 16:58:18,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:58:18,978 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:19,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 16:58:19,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2024-11-08 16:58:19,179 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:58:19,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:19,180 INFO L85 PathProgramCache]: Analyzing trace with hash -493671553, now seen corresponding path program 1 times [2024-11-08 16:58:19,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:19,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074009328] [2024-11-08 16:58:19,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:19,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:20,204 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 35 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:20,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:20,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074009328] [2024-11-08 16:58:20,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074009328] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:58:20,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106479058] [2024-11-08 16:58:20,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:20,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:20,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:58:20,207 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:58:20,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 16:58:21,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:21,037 INFO L255 TraceCheckSpWp]: Trace formula consists of 1718 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 16:58:21,044 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:58:21,436 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:21,436 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:58:21,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106479058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:21,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:58:21,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-08 16:58:21,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372690791] [2024-11-08 16:58:21,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:21,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:58:21,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:21,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:58:21,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:58:21,440 INFO L87 Difference]: Start difference. First operand 1087 states and 1584 transitions. Second operand has 6 states, 6 states have (on average 68.0) internal successors, (408), 6 states have internal predecessors, (408), 0 states have call successors, (0), 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 16:58:22,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:58:22,176 INFO L93 Difference]: Finished difference Result 2670 states and 3887 transitions. [2024-11-08 16:58:22,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:58:22,177 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 68.0) internal successors, (408), 6 states have internal predecessors, (408), 0 states have call successors, (0), 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 408 [2024-11-08 16:58:22,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:58:22,181 INFO L225 Difference]: With dead ends: 2670 [2024-11-08 16:58:22,181 INFO L226 Difference]: Without dead ends: 1833 [2024-11-08 16:58:22,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 406 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:58:22,183 INFO L432 NwaCegarLoop]: 772 mSDtfsCounter, 2058 mSDsluCounter, 2303 mSDsCounter, 0 mSdLazyCounter, 1010 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2058 SdHoareTripleChecker+Valid, 3075 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 16:58:22,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2058 Valid, 3075 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1010 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 16:58:22,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1833 states. [2024-11-08 16:58:22,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1833 to 1577. [2024-11-08 16:58:22,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 1.4428934010152283) internal successors, (2274), 1576 states have internal predecessors, (2274), 0 states have call successors, (0), 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 16:58:22,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 2274 transitions. [2024-11-08 16:58:22,212 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 2274 transitions. Word has length 408 [2024-11-08 16:58:22,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:58:22,213 INFO L471 AbstractCegarLoop]: Abstraction has 1577 states and 2274 transitions. [2024-11-08 16:58:22,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.0) internal successors, (408), 6 states have internal predecessors, (408), 0 states have call successors, (0), 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 16:58:22,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 2274 transitions. [2024-11-08 16:58:22,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2024-11-08 16:58:22,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:58:22,218 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:22,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-08 16:58:22,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:22,419 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:58:22,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:22,419 INFO L85 PathProgramCache]: Analyzing trace with hash 789967912, now seen corresponding path program 1 times [2024-11-08 16:58:22,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:22,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873312804] [2024-11-08 16:58:22,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:22,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:23,168 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 35 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:23,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:23,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873312804] [2024-11-08 16:58:23,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873312804] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:58:23,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747158200] [2024-11-08 16:58:23,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:23,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:23,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:58:23,173 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:58:23,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 16:58:23,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:23,886 INFO L255 TraceCheckSpWp]: Trace formula consists of 1721 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 16:58:23,893 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:58:24,863 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:24,863 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:58:24,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [747158200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:24,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:58:24,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-08 16:58:24,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760777794] [2024-11-08 16:58:24,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:24,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:58:24,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:24,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:58:24,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:58:24,867 INFO L87 Difference]: Start difference. First operand 1577 states and 2274 transitions. Second operand has 6 states, 6 states have (on average 68.16666666666667) internal successors, (409), 6 states have internal predecessors, (409), 0 states have call successors, (0), 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 16:58:25,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:58:25,685 INFO L93 Difference]: Finished difference Result 3007 states and 4369 transitions. [2024-11-08 16:58:25,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:58:25,686 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 68.16666666666667) internal successors, (409), 6 states have internal predecessors, (409), 0 states have call successors, (0), 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 409 [2024-11-08 16:58:25,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:58:25,691 INFO L225 Difference]: With dead ends: 3007 [2024-11-08 16:58:25,691 INFO L226 Difference]: Without dead ends: 1832 [2024-11-08 16:58:25,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:58:25,693 INFO L432 NwaCegarLoop]: 774 mSDtfsCounter, 1465 mSDsluCounter, 2298 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1465 SdHoareTripleChecker+Valid, 3072 SdHoareTripleChecker+Invalid, 1009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:58:25,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1465 Valid, 3072 Invalid, 1009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 16:58:25,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1832 states. [2024-11-08 16:58:25,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1832 to 1830. [2024-11-08 16:58:25,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1830 states, 1829 states have (on average 1.4505194095133953) internal successors, (2653), 1829 states have internal predecessors, (2653), 0 states have call successors, (0), 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 16:58:25,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1830 states to 1830 states and 2653 transitions. [2024-11-08 16:58:25,724 INFO L78 Accepts]: Start accepts. Automaton has 1830 states and 2653 transitions. Word has length 409 [2024-11-08 16:58:25,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:58:25,725 INFO L471 AbstractCegarLoop]: Abstraction has 1830 states and 2653 transitions. [2024-11-08 16:58:25,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.16666666666667) internal successors, (409), 6 states have internal predecessors, (409), 0 states have call successors, (0), 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 16:58:25,726 INFO L276 IsEmpty]: Start isEmpty. Operand 1830 states and 2653 transitions. [2024-11-08 16:58:25,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2024-11-08 16:58:25,730 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:58:25,731 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:25,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 16:58:25,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:25,932 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:58:25,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:25,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1835500853, now seen corresponding path program 1 times [2024-11-08 16:58:25,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:25,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220749706] [2024-11-08 16:58:25,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:25,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:26,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:26,805 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 35 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:26,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:26,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220749706] [2024-11-08 16:58:26,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220749706] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:58:26,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684602576] [2024-11-08 16:58:26,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:26,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:26,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:58:26,808 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:58:26,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 16:58:27,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:27,530 INFO L255 TraceCheckSpWp]: Trace formula consists of 1721 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-08 16:58:27,539 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:58:29,480 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:29,480 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:58:29,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684602576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:29,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:58:29,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [7] total 21 [2024-11-08 16:58:29,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49333543] [2024-11-08 16:58:29,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:29,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-08 16:58:29,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:29,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-08 16:58:29,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2024-11-08 16:58:29,484 INFO L87 Difference]: Start difference. First operand 1830 states and 2653 transitions. Second operand has 16 states, 16 states have (on average 25.5625) internal successors, (409), 16 states have internal predecessors, (409), 0 states have call successors, (0), 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 16:58:32,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:58:32,246 INFO L93 Difference]: Finished difference Result 4988 states and 7270 transitions. [2024-11-08 16:58:32,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 16:58:32,247 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 25.5625) internal successors, (409), 16 states have internal predecessors, (409), 0 states have call successors, (0), 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 409 [2024-11-08 16:58:32,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:58:32,256 INFO L225 Difference]: With dead ends: 4988 [2024-11-08 16:58:32,257 INFO L226 Difference]: Without dead ends: 3560 [2024-11-08 16:58:32,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 397 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=100, Invalid=602, Unknown=0, NotChecked=0, Total=702 [2024-11-08 16:58:32,259 INFO L432 NwaCegarLoop]: 1371 mSDtfsCounter, 2029 mSDsluCounter, 13439 mSDsCounter, 0 mSdLazyCounter, 4701 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2029 SdHoareTripleChecker+Valid, 14810 SdHoareTripleChecker+Invalid, 4707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:58:32,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2029 Valid, 14810 Invalid, 4707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4701 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-08 16:58:32,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3560 states. [2024-11-08 16:58:32,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3560 to 2585. [2024-11-08 16:58:32,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2585 states, 2584 states have (on average 1.4539473684210527) internal successors, (3757), 2584 states have internal predecessors, (3757), 0 states have call successors, (0), 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 16:58:32,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2585 states to 2585 states and 3757 transitions. [2024-11-08 16:58:32,306 INFO L78 Accepts]: Start accepts. Automaton has 2585 states and 3757 transitions. Word has length 409 [2024-11-08 16:58:32,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:58:32,307 INFO L471 AbstractCegarLoop]: Abstraction has 2585 states and 3757 transitions. [2024-11-08 16:58:32,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 25.5625) internal successors, (409), 16 states have internal predecessors, (409), 0 states have call successors, (0), 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 16:58:32,307 INFO L276 IsEmpty]: Start isEmpty. Operand 2585 states and 3757 transitions. [2024-11-08 16:58:32,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2024-11-08 16:58:32,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:58:32,313 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:32,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 16:58:32,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:32,516 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:58:32,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:32,516 INFO L85 PathProgramCache]: Analyzing trace with hash 2035023283, now seen corresponding path program 1 times [2024-11-08 16:58:32,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:32,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113786790] [2024-11-08 16:58:32,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:32,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:32,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:33,521 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 35 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:33,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:33,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113786790] [2024-11-08 16:58:33,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113786790] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:58:33,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1182722822] [2024-11-08 16:58:33,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:33,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:33,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:58:33,523 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:58:33,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 16:58:34,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:34,274 INFO L255 TraceCheckSpWp]: Trace formula consists of 1721 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 16:58:34,281 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:58:35,101 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:35,102 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:58:35,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1182722822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:35,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:58:35,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-08 16:58:35,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401203791] [2024-11-08 16:58:35,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:35,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:58:35,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:35,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:58:35,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:58:35,104 INFO L87 Difference]: Start difference. First operand 2585 states and 3757 transitions. Second operand has 6 states, 6 states have (on average 68.16666666666667) internal successors, (409), 6 states have internal predecessors, (409), 0 states have call successors, (0), 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 16:58:35,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:58:35,933 INFO L93 Difference]: Finished difference Result 5631 states and 8252 transitions. [2024-11-08 16:58:35,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:58:35,934 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 68.16666666666667) internal successors, (409), 6 states have internal predecessors, (409), 0 states have call successors, (0), 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 409 [2024-11-08 16:58:35,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:58:35,940 INFO L225 Difference]: With dead ends: 5631 [2024-11-08 16:58:35,940 INFO L226 Difference]: Without dead ends: 3527 [2024-11-08 16:58:35,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:58:35,943 INFO L432 NwaCegarLoop]: 1092 mSDtfsCounter, 1197 mSDsluCounter, 2923 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1197 SdHoareTripleChecker+Valid, 4015 SdHoareTripleChecker+Invalid, 1139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:58:35,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1197 Valid, 4015 Invalid, 1139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 16:58:35,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3527 states. [2024-11-08 16:58:35,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3527 to 3519. [2024-11-08 16:58:35,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3519 states, 3518 states have (on average 1.4638999431495168) internal successors, (5150), 3518 states have internal predecessors, (5150), 0 states have call successors, (0), 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 16:58:35,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3519 states to 3519 states and 5150 transitions. [2024-11-08 16:58:35,994 INFO L78 Accepts]: Start accepts. Automaton has 3519 states and 5150 transitions. Word has length 409 [2024-11-08 16:58:35,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:58:35,995 INFO L471 AbstractCegarLoop]: Abstraction has 3519 states and 5150 transitions. [2024-11-08 16:58:35,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.16666666666667) internal successors, (409), 6 states have internal predecessors, (409), 0 states have call successors, (0), 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 16:58:35,995 INFO L276 IsEmpty]: Start isEmpty. Operand 3519 states and 5150 transitions. [2024-11-08 16:58:36,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2024-11-08 16:58:36,002 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:58:36,003 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:36,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-08 16:58:36,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-08 16:58:36,203 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:58:36,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:36,204 INFO L85 PathProgramCache]: Analyzing trace with hash -193212743, now seen corresponding path program 1 times [2024-11-08 16:58:36,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:36,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146463030] [2024-11-08 16:58:36,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:36,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:36,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:36,995 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 35 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:36,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:36,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146463030] [2024-11-08 16:58:36,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146463030] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:58:36,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032680306] [2024-11-08 16:58:36,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:36,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:36,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:58:36,999 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:58:37,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 16:58:37,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:37,739 INFO L255 TraceCheckSpWp]: Trace formula consists of 1724 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-08 16:58:37,746 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:58:38,715 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 49 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:38,716 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:58:40,419 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 55 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:40,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032680306] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:58:40,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:58:40,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 16, 15] total 33 [2024-11-08 16:58:40,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600355409] [2024-11-08 16:58:40,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:58:40,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-08 16:58:40,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:40,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-08 16:58:40,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=957, Unknown=0, NotChecked=0, Total=1056 [2024-11-08 16:58:40,422 INFO L87 Difference]: Start difference. First operand 3519 states and 5150 transitions. Second operand has 33 states, 33 states have (on average 29.151515151515152) internal successors, (962), 33 states have internal predecessors, (962), 0 states have call successors, (0), 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 16:58:50,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:58:50,764 INFO L93 Difference]: Finished difference Result 32502 states and 47997 transitions. [2024-11-08 16:58:50,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 160 states. [2024-11-08 16:58:50,765 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 29.151515151515152) internal successors, (962), 33 states have internal predecessors, (962), 0 states have call successors, (0), 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 410 [2024-11-08 16:58:50,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:58:50,798 INFO L225 Difference]: With dead ends: 32502 [2024-11-08 16:58:50,798 INFO L226 Difference]: Without dead ends: 25322 [2024-11-08 16:58:50,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 968 GetRequests, 800 SyntacticMatches, 0 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9573 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=2277, Invalid=26453, Unknown=0, NotChecked=0, Total=28730 [2024-11-08 16:58:50,812 INFO L432 NwaCegarLoop]: 2461 mSDtfsCounter, 19411 mSDsluCounter, 49352 mSDsCounter, 0 mSdLazyCounter, 11509 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19411 SdHoareTripleChecker+Valid, 51813 SdHoareTripleChecker+Invalid, 11665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 11509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:58:50,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19411 Valid, 51813 Invalid, 11665 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [156 Valid, 11509 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-08 16:58:50,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25322 states. [2024-11-08 16:58:51,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25322 to 12150. [2024-11-08 16:58:51,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12150 states, 12149 states have (on average 1.4683513046341263) internal successors, (17839), 12149 states have internal predecessors, (17839), 0 states have call successors, (0), 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 16:58:51,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12150 states to 12150 states and 17839 transitions. [2024-11-08 16:58:51,042 INFO L78 Accepts]: Start accepts. Automaton has 12150 states and 17839 transitions. Word has length 410 [2024-11-08 16:58:51,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:58:51,043 INFO L471 AbstractCegarLoop]: Abstraction has 12150 states and 17839 transitions. [2024-11-08 16:58:51,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 29.151515151515152) internal successors, (962), 33 states have internal predecessors, (962), 0 states have call successors, (0), 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 16:58:51,044 INFO L276 IsEmpty]: Start isEmpty. Operand 12150 states and 17839 transitions. [2024-11-08 16:58:51,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2024-11-08 16:58:51,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:58:51,063 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:51,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-08 16:58:51,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-08 16:58:51,264 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:58:51,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:51,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1361241750, now seen corresponding path program 1 times [2024-11-08 16:58:51,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:51,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995305742] [2024-11-08 16:58:51,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:51,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:51,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:52,101 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:52,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:52,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995305742] [2024-11-08 16:58:52,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995305742] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:58:52,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013005153] [2024-11-08 16:58:52,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:52,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:52,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:58:52,103 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:58:52,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-08 16:58:52,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:52,890 INFO L255 TraceCheckSpWp]: Trace formula consists of 1727 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-08 16:58:52,897 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:58:54,484 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 35 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:54,484 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:58:55,638 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 35 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:55,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013005153] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:58:55,638 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:58:55,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 11] total 27 [2024-11-08 16:58:55,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206390970] [2024-11-08 16:58:55,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:58:55,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-08 16:58:55,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:55,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-08 16:58:55,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=606, Unknown=0, NotChecked=0, Total=702 [2024-11-08 16:58:55,645 INFO L87 Difference]: Start difference. First operand 12150 states and 17839 transitions. Second operand has 27 states, 27 states have (on average 40.851851851851855) internal successors, (1103), 27 states have internal predecessors, (1103), 0 states have call successors, (0), 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 16:59:17,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:59:17,462 INFO L93 Difference]: Finished difference Result 223614 states and 330739 transitions. [2024-11-08 16:59:17,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 247 states. [2024-11-08 16:59:17,463 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 40.851851851851855) internal successors, (1103), 27 states have internal predecessors, (1103), 0 states have call successors, (0), 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 411 [2024-11-08 16:59:17,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:59:17,705 INFO L225 Difference]: With dead ends: 223614 [2024-11-08 16:59:17,706 INFO L226 Difference]: Without dead ends: 202640 [2024-11-08 16:59:17,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1086 GetRequests, 820 SyntacticMatches, 0 SemanticMatches, 266 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28857 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=6571, Invalid=64985, Unknown=0, NotChecked=0, Total=71556 [2024-11-08 16:59:17,745 INFO L432 NwaCegarLoop]: 3137 mSDtfsCounter, 33362 mSDsluCounter, 49384 mSDsCounter, 0 mSdLazyCounter, 16920 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33362 SdHoareTripleChecker+Valid, 52521 SdHoareTripleChecker+Invalid, 17124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 16920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:59:17,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33362 Valid, 52521 Invalid, 17124 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [204 Valid, 16920 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2024-11-08 16:59:17,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202640 states. [2024-11-08 16:59:19,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202640 to 22863. [2024-11-08 16:59:19,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22863 states, 22862 states have (on average 1.4610270317557519) internal successors, (33402), 22862 states have internal predecessors, (33402), 0 states have call successors, (0), 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 16:59:19,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22863 states to 22863 states and 33402 transitions. [2024-11-08 16:59:19,220 INFO L78 Accepts]: Start accepts. Automaton has 22863 states and 33402 transitions. Word has length 411 [2024-11-08 16:59:19,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:59:19,221 INFO L471 AbstractCegarLoop]: Abstraction has 22863 states and 33402 transitions. [2024-11-08 16:59:19,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 40.851851851851855) internal successors, (1103), 27 states have internal predecessors, (1103), 0 states have call successors, (0), 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 16:59:19,222 INFO L276 IsEmpty]: Start isEmpty. Operand 22863 states and 33402 transitions. [2024-11-08 16:59:19,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2024-11-08 16:59:19,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:59:19,278 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:19,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-08 16:59:19,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8612a8f-0e65-4038-860e-3f4deb68a28b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-08 16:59:19,479 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:59:19,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:19,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1341867652, now seen corresponding path program 1 times [2024-11-08 16:59:19,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:19,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965582142] [2024-11-08 16:59:19,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:19,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:59:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:20,362 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-08 16:59:20,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:59:20,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965582142] [2024-11-08 16:59:20,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965582142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:20,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:20,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:59:20,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427401469] [2024-11-08 16:59:20,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:20,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:59:20,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:59:20,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:59:20,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:59:20,365 INFO L87 Difference]: Start difference. First operand 22863 states and 33402 transitions. Second operand has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 0 states have call successors, (0), 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 16:59:20,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:59:20,493 INFO L93 Difference]: Finished difference Result 42968 states and 62983 transitions. [2024-11-08 16:59:20,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:59:20,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 0 states have call successors, (0), 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 413 [2024-11-08 16:59:20,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:59:20,521 INFO L225 Difference]: With dead ends: 42968 [2024-11-08 16:59:20,521 INFO L226 Difference]: Without dead ends: 23003 [2024-11-08 16:59:20,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:59:20,537 INFO L432 NwaCegarLoop]: 1022 mSDtfsCounter, 0 mSDsluCounter, 3033 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4055 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:59:20,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4055 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:59:20,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23003 states. [2024-11-08 16:59:20,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23003 to 22863. [2024-11-08 16:59:20,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22863 states, 22862 states have (on average 1.4610270317557519) internal successors, (33402), 22862 states have internal predecessors, (33402), 0 states have call successors, (0), 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 16:59:20,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22863 states to 22863 states and 33402 transitions. [2024-11-08 16:59:20,816 INFO L78 Accepts]: Start accepts. Automaton has 22863 states and 33402 transitions. Word has length 413 [2024-11-08 16:59:20,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:59:20,817 INFO L471 AbstractCegarLoop]: Abstraction has 22863 states and 33402 transitions. [2024-11-08 16:59:20,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 0 states have call successors, (0), 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 16:59:20,818 INFO L276 IsEmpty]: Start isEmpty. Operand 22863 states and 33402 transitions. [2024-11-08 16:59:20,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2024-11-08 16:59:20,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:59:20,847 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:20,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-08 16:59:20,847 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:59:20,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:20,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1111914375, now seen corresponding path program 1 times [2024-11-08 16:59:20,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:20,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835890464] [2024-11-08 16:59:20,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:20,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:59:21,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:21,495 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-08 16:59:21,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:59:21,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835890464] [2024-11-08 16:59:21,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835890464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:21,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:21,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:59:21,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374671666] [2024-11-08 16:59:21,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:21,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:59:21,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:59:21,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:59:21,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:59:21,498 INFO L87 Difference]: Start difference. First operand 22863 states and 33402 transitions. Second operand has 5 states, 5 states have (on average 74.8) internal successors, (374), 5 states have internal predecessors, (374), 0 states have call successors, (0), 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 16:59:21,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:59:21,660 INFO L93 Difference]: Finished difference Result 42968 states and 62983 transitions. [2024-11-08 16:59:21,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:59:21,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 74.8) internal successors, (374), 5 states have internal predecessors, (374), 0 states have call successors, (0), 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 414 [2024-11-08 16:59:21,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:59:21,679 INFO L225 Difference]: With dead ends: 42968 [2024-11-08 16:59:21,679 INFO L226 Difference]: Without dead ends: 23003 [2024-11-08 16:59:21,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:59:21,695 INFO L432 NwaCegarLoop]: 1022 mSDtfsCounter, 0 mSDsluCounter, 3033 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4055 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:59:21,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4055 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:59:21,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23003 states. [2024-11-08 16:59:21,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23003 to 22863. [2024-11-08 16:59:21,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22863 states, 22862 states have (on average 1.4610270317557519) internal successors, (33402), 22862 states have internal predecessors, (33402), 0 states have call successors, (0), 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 16:59:21,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22863 states to 22863 states and 33402 transitions. [2024-11-08 16:59:21,953 INFO L78 Accepts]: Start accepts. Automaton has 22863 states and 33402 transitions. Word has length 414 [2024-11-08 16:59:21,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:59:21,954 INFO L471 AbstractCegarLoop]: Abstraction has 22863 states and 33402 transitions. [2024-11-08 16:59:21,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.8) internal successors, (374), 5 states have internal predecessors, (374), 0 states have call successors, (0), 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 16:59:21,954 INFO L276 IsEmpty]: Start isEmpty. Operand 22863 states and 33402 transitions. [2024-11-08 16:59:21,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2024-11-08 16:59:21,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:59:21,979 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:21,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-08 16:59:21,979 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:59:21,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:21,980 INFO L85 PathProgramCache]: Analyzing trace with hash -635257212, now seen corresponding path program 1 times [2024-11-08 16:59:21,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:21,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397556391] [2024-11-08 16:59:21,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:21,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:59:22,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:23,018 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:59:23,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:59:23,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397556391] [2024-11-08 16:59:23,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397556391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:23,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:23,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:59:23,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045483510] [2024-11-08 16:59:23,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:23,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:59:23,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:59:23,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:59:23,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:59:23,022 INFO L87 Difference]: Start difference. First operand 22863 states and 33402 transitions. Second operand has 6 states, 6 states have (on average 69.16666666666667) internal successors, (415), 6 states have internal predecessors, (415), 0 states have call successors, (0), 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 16:59:23,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:59:23,799 INFO L93 Difference]: Finished difference Result 64207 states and 94006 transitions. [2024-11-08 16:59:23,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:59:23,800 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 69.16666666666667) internal successors, (415), 6 states have internal predecessors, (415), 0 states have call successors, (0), 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 415 [2024-11-08 16:59:23,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:59:23,828 INFO L225 Difference]: With dead ends: 64207 [2024-11-08 16:59:23,828 INFO L226 Difference]: Without dead ends: 44242 [2024-11-08 16:59:23,844 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:59:23,845 INFO L432 NwaCegarLoop]: 772 mSDtfsCounter, 2020 mSDsluCounter, 2304 mSDsCounter, 0 mSdLazyCounter, 1010 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2020 SdHoareTripleChecker+Valid, 3076 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:59:23,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2020 Valid, 3076 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1010 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 16:59:23,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44242 states. [2024-11-08 16:59:24,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44242 to 32570. [2024-11-08 16:59:24,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32570 states, 32569 states have (on average 1.448463262611686) internal successors, (47175), 32569 states have internal predecessors, (47175), 0 states have call successors, (0), 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 16:59:24,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32570 states to 32570 states and 47175 transitions. [2024-11-08 16:59:24,281 INFO L78 Accepts]: Start accepts. Automaton has 32570 states and 47175 transitions. Word has length 415 [2024-11-08 16:59:24,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:59:24,282 INFO L471 AbstractCegarLoop]: Abstraction has 32570 states and 47175 transitions. [2024-11-08 16:59:24,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.16666666666667) internal successors, (415), 6 states have internal predecessors, (415), 0 states have call successors, (0), 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 16:59:24,282 INFO L276 IsEmpty]: Start isEmpty. Operand 32570 states and 47175 transitions. [2024-11-08 16:59:24,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2024-11-08 16:59:24,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:59:24,317 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:24,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-08 16:59:24,317 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:59:24,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:24,318 INFO L85 PathProgramCache]: Analyzing trace with hash 131466636, now seen corresponding path program 1 times [2024-11-08 16:59:24,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:24,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146046274] [2024-11-08 16:59:24,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:24,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:59:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:25,729 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:59:25,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:59:25,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146046274] [2024-11-08 16:59:25,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146046274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:25,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:25,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:59:25,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720431788] [2024-11-08 16:59:25,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:25,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:59:25,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:59:25,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:59:25,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:59:25,733 INFO L87 Difference]: Start difference. First operand 32570 states and 47175 transitions. Second operand has 6 states, 6 states have (on average 69.33333333333333) internal successors, (416), 6 states have internal predecessors, (416), 0 states have call successors, (0), 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 16:59:26,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:59:26,680 INFO L93 Difference]: Finished difference Result 89581 states and 130032 transitions. [2024-11-08 16:59:26,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:59:26,681 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 69.33333333333333) internal successors, (416), 6 states have internal predecessors, (416), 0 states have call successors, (0), 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 416 [2024-11-08 16:59:26,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:59:26,723 INFO L225 Difference]: With dead ends: 89581 [2024-11-08 16:59:26,724 INFO L226 Difference]: Without dead ends: 62649 [2024-11-08 16:59:26,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:59:26,749 INFO L432 NwaCegarLoop]: 772 mSDtfsCounter, 2286 mSDsluCounter, 2133 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2286 SdHoareTripleChecker+Valid, 2905 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 16:59:26,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2286 Valid, 2905 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 16:59:26,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62649 states. [2024-11-08 16:59:27,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62649 to 55246. [2024-11-08 16:59:27,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55246 states, 55245 states have (on average 1.4405104534347) internal successors, (79581), 55245 states have internal predecessors, (79581), 0 states have call successors, (0), 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 16:59:27,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55246 states to 55246 states and 79581 transitions. [2024-11-08 16:59:27,369 INFO L78 Accepts]: Start accepts. Automaton has 55246 states and 79581 transitions. Word has length 416 [2024-11-08 16:59:27,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:59:27,369 INFO L471 AbstractCegarLoop]: Abstraction has 55246 states and 79581 transitions. [2024-11-08 16:59:27,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.33333333333333) internal successors, (416), 6 states have internal predecessors, (416), 0 states have call successors, (0), 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 16:59:27,369 INFO L276 IsEmpty]: Start isEmpty. Operand 55246 states and 79581 transitions. [2024-11-08 16:59:27,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2024-11-08 16:59:27,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:59:27,428 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:27,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-08 16:59:27,429 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:59:27,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:27,429 INFO L85 PathProgramCache]: Analyzing trace with hash -176164392, now seen corresponding path program 1 times [2024-11-08 16:59:27,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:27,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724651483] [2024-11-08 16:59:27,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:27,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:59:27,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:28,658 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:59:28,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:59:28,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724651483] [2024-11-08 16:59:28,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724651483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:28,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:28,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:59:28,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120573891] [2024-11-08 16:59:28,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:28,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:59:28,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:59:28,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:59:28,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:59:28,661 INFO L87 Difference]: Start difference. First operand 55246 states and 79581 transitions. Second operand has 6 states, 6 states have (on average 69.5) internal successors, (417), 6 states have internal predecessors, (417), 0 states have call successors, (0), 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 16:59:29,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:59:29,698 INFO L93 Difference]: Finished difference Result 150422 states and 217171 transitions. [2024-11-08 16:59:29,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:59:29,699 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 69.5) internal successors, (417), 6 states have internal predecessors, (417), 0 states have call successors, (0), 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 417 [2024-11-08 16:59:29,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:59:29,790 INFO L225 Difference]: With dead ends: 150422 [2024-11-08 16:59:29,790 INFO L226 Difference]: Without dead ends: 105854 [2024-11-08 16:59:29,812 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:59:29,812 INFO L432 NwaCegarLoop]: 772 mSDtfsCounter, 2352 mSDsluCounter, 2177 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2352 SdHoareTripleChecker+Valid, 2949 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:59:29,813 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2352 Valid, 2949 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 16:59:29,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105854 states. [2024-11-08 16:59:30,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105854 to 99126. [2024-11-08 16:59:30,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99126 states, 99125 states have (on average 1.4344010088272383) internal successors, (142185), 99125 states have internal predecessors, (142185), 0 states have call successors, (0), 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 16:59:31,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99126 states to 99126 states and 142185 transitions. [2024-11-08 16:59:31,249 INFO L78 Accepts]: Start accepts. Automaton has 99126 states and 142185 transitions. Word has length 417 [2024-11-08 16:59:31,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:59:31,250 INFO L471 AbstractCegarLoop]: Abstraction has 99126 states and 142185 transitions. [2024-11-08 16:59:31,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.5) internal successors, (417), 6 states have internal predecessors, (417), 0 states have call successors, (0), 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 16:59:31,250 INFO L276 IsEmpty]: Start isEmpty. Operand 99126 states and 142185 transitions. [2024-11-08 16:59:31,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2024-11-08 16:59:31,344 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:59:31,344 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:31,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-08 16:59:31,345 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:59:31,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:31,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1753529744, now seen corresponding path program 1 times [2024-11-08 16:59:31,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:31,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559361949] [2024-11-08 16:59:31,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:31,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:59:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:32,928 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:59:32,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:59:32,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559361949] [2024-11-08 16:59:32,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559361949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:32,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:32,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:59:32,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130930614] [2024-11-08 16:59:32,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:32,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:59:32,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:59:32,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:59:32,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:59:32,932 INFO L87 Difference]: Start difference. First operand 99126 states and 142185 transitions. Second operand has 6 states, 6 states have (on average 69.66666666666667) internal successors, (418), 6 states have internal predecessors, (418), 0 states have call successors, (0), 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 16:59:34,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:59:34,289 INFO L93 Difference]: Finished difference Result 268074 states and 385401 transitions. [2024-11-08 16:59:34,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:59:34,290 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 69.66666666666667) internal successors, (418), 6 states have internal predecessors, (418), 0 states have call successors, (0), 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 418 [2024-11-08 16:59:34,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:59:34,416 INFO L225 Difference]: With dead ends: 268074 [2024-11-08 16:59:34,416 INFO L226 Difference]: Without dead ends: 189146 [2024-11-08 16:59:34,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:59:34,455 INFO L432 NwaCegarLoop]: 772 mSDtfsCounter, 2336 mSDsluCounter, 2182 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2336 SdHoareTripleChecker+Valid, 2954 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:59:34,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2336 Valid, 2954 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 903 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 16:59:34,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189146 states. [2024-11-08 16:59:36,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189146 to 183174. [2024-11-08 16:59:36,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183174 states, 183173 states have (on average 1.4293864270389194) internal successors, (261825), 183173 states have internal predecessors, (261825), 0 states have call successors, (0), 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 16:59:37,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183174 states to 183174 states and 261825 transitions. [2024-11-08 16:59:37,175 INFO L78 Accepts]: Start accepts. Automaton has 183174 states and 261825 transitions. Word has length 418 [2024-11-08 16:59:37,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:59:37,176 INFO L471 AbstractCegarLoop]: Abstraction has 183174 states and 261825 transitions. [2024-11-08 16:59:37,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.66666666666667) internal successors, (418), 6 states have internal predecessors, (418), 0 states have call successors, (0), 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 16:59:37,176 INFO L276 IsEmpty]: Start isEmpty. Operand 183174 states and 261825 transitions. [2024-11-08 16:59:37,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2024-11-08 16:59:37,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:59:37,359 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:37,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-08 16:59:37,359 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:59:37,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:37,360 INFO L85 PathProgramCache]: Analyzing trace with hash -2049090500, now seen corresponding path program 1 times [2024-11-08 16:59:37,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:37,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513612156] [2024-11-08 16:59:37,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:37,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:59:37,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:38,637 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:59:38,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:59:38,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513612156] [2024-11-08 16:59:38,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513612156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:38,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:38,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:59:38,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431729125] [2024-11-08 16:59:38,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:38,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:59:38,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:59:38,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:59:38,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:59:38,640 INFO L87 Difference]: Start difference. First operand 183174 states and 261825 transitions. Second operand has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 0 states have call successors, (0), 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 16:59:39,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:59:39,774 INFO L93 Difference]: Finished difference Result 328230 states and 472074 transitions. [2024-11-08 16:59:39,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:59:39,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 0 states have call successors, (0), 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 419 [2024-11-08 16:59:39,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:59:39,913 INFO L225 Difference]: With dead ends: 328230 [2024-11-08 16:59:39,913 INFO L226 Difference]: Without dead ends: 183174 [2024-11-08 16:59:39,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:59:39,982 INFO L432 NwaCegarLoop]: 778 mSDtfsCounter, 888 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 888 SdHoareTripleChecker+Valid, 1548 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:59:39,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [888 Valid, 1548 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 16:59:40,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183174 states. [2024-11-08 16:59:41,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183174 to 183174. [2024-11-08 16:59:42,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183174 states, 183173 states have (on average 1.4272900482057944) internal successors, (261441), 183173 states have internal predecessors, (261441), 0 states have call successors, (0), 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 16:59:42,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183174 states to 183174 states and 261441 transitions. [2024-11-08 16:59:42,273 INFO L78 Accepts]: Start accepts. Automaton has 183174 states and 261441 transitions. Word has length 419 [2024-11-08 16:59:42,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:59:42,273 INFO L471 AbstractCegarLoop]: Abstraction has 183174 states and 261441 transitions. [2024-11-08 16:59:42,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 0 states have call successors, (0), 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 16:59:42,273 INFO L276 IsEmpty]: Start isEmpty. Operand 183174 states and 261441 transitions. [2024-11-08 16:59:43,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2024-11-08 16:59:43,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:59:43,026 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:43,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-08 16:59:43,027 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:59:43,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:43,029 INFO L85 PathProgramCache]: Analyzing trace with hash 730856930, now seen corresponding path program 1 times [2024-11-08 16:59:43,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:43,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194970057] [2024-11-08 16:59:43,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:43,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:59:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:44,995 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:59:44,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:59:44,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194970057] [2024-11-08 16:59:44,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194970057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:44,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:44,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:59:44,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933112805] [2024-11-08 16:59:44,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:44,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:59:44,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:59:44,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:59:44,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:59:44,999 INFO L87 Difference]: Start difference. First operand 183174 states and 261441 transitions. Second operand has 8 states, 8 states have (on average 52.5) internal successors, (420), 8 states have internal predecessors, (420), 0 states have call successors, (0), 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 16:59:47,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:59:47,919 INFO L93 Difference]: Finished difference Result 442158 states and 634157 transitions. [2024-11-08 16:59:47,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:59:47,920 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 52.5) internal successors, (420), 8 states have internal predecessors, (420), 0 states have call successors, (0), 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 420 [2024-11-08 16:59:47,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:59:48,230 INFO L225 Difference]: With dead ends: 442158 [2024-11-08 16:59:48,230 INFO L226 Difference]: Without dead ends: 297102 [2024-11-08 16:59:48,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:59:48,340 INFO L432 NwaCegarLoop]: 1304 mSDtfsCounter, 1596 mSDsluCounter, 5957 mSDsCounter, 0 mSdLazyCounter, 2335 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1596 SdHoareTripleChecker+Valid, 7261 SdHoareTripleChecker+Invalid, 2336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 16:59:48,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1596 Valid, 7261 Invalid, 2336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2335 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 16:59:48,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297102 states. [2024-11-08 16:59:51,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297102 to 287942. [2024-11-08 16:59:51,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287942 states, 287941 states have (on average 1.4264345820845243) internal successors, (410729), 287941 states have internal predecessors, (410729), 0 states have call successors, (0), 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 16:59:52,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287942 states to 287942 states and 410729 transitions. [2024-11-08 16:59:52,381 INFO L78 Accepts]: Start accepts. Automaton has 287942 states and 410729 transitions. Word has length 420 [2024-11-08 16:59:52,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:59:52,381 INFO L471 AbstractCegarLoop]: Abstraction has 287942 states and 410729 transitions. [2024-11-08 16:59:52,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 52.5) internal successors, (420), 8 states have internal predecessors, (420), 0 states have call successors, (0), 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 16:59:52,381 INFO L276 IsEmpty]: Start isEmpty. Operand 287942 states and 410729 transitions. [2024-11-08 16:59:52,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2024-11-08 16:59:52,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:59:52,696 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:52,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-08 16:59:52,696 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:59:52,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:52,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1004330884, now seen corresponding path program 1 times [2024-11-08 16:59:52,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:52,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110518691] [2024-11-08 16:59:52,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:52,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:59:54,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:55,364 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:59:55,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:59:55,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110518691] [2024-11-08 16:59:55,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110518691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:55,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:55,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:59:55,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661654295] [2024-11-08 16:59:55,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:55,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:59:55,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:59:55,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:59:55,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:59:55,367 INFO L87 Difference]: Start difference. First operand 287942 states and 410729 transitions. Second operand has 6 states, 6 states have (on average 70.16666666666667) internal successors, (421), 6 states have internal predecessors, (421), 0 states have call successors, (0), 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 16:59:57,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:59:57,732 INFO L93 Difference]: Finished difference Result 590428 states and 850965 transitions. [2024-11-08 16:59:57,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:59:57,733 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 70.16666666666667) internal successors, (421), 6 states have internal predecessors, (421), 0 states have call successors, (0), 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 421 [2024-11-08 16:59:57,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted.