./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/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_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 22565549446fb10d699e81ca4083722d91d5f2743033fe3de4e7c76b9089640a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:13:25,360 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:13:25,478 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 19:13:25,488 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:13:25,489 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:13:25,529 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:13:25,530 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:13:25,530 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:13:25,531 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:13:25,533 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:13:25,535 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:13:25,535 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:13:25,536 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:13:25,536 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:13:25,537 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:13:25,537 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:13:25,537 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:13:25,542 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:13:25,542 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:13:25,543 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:13:25,543 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:13:25,546 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:13:25,546 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:13:25,547 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:13:25,547 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:13:25,547 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:13:25,548 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:13:25,548 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:13:25,549 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:13:25,549 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:13:25,549 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:13:25,550 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:13:25,550 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:13:25,550 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:13:25,551 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:13:25,551 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:13:25,552 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 19:13:25,552 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:13:25,552 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:13:25,553 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:13:25,553 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:13:25,557 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:13:25,558 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_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22565549446fb10d699e81ca4083722d91d5f2743033fe3de4e7c76b9089640a [2024-11-08 19:13:25,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:13:25,923 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:13:25,926 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:13:25,928 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:13:25,929 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:13:25,930 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c Unable to find full path for "g++" [2024-11-08 19:13:28,204 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:13:28,506 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:13:28,507 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-08 19:13:28,530 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/data/f4d450b42/fc5397f7603e4b9f877311968057b743/FLAGf38032e2e [2024-11-08 19:13:28,548 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/data/f4d450b42/fc5397f7603e4b9f877311968057b743 [2024-11-08 19:13:28,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:13:28,554 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:13:28,555 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:13:28,556 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:13:28,563 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:13:28,564 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:13:28" (1/1) ... [2024-11-08 19:13:28,565 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32e81a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:13:28, skipping insertion in model container [2024-11-08 19:13:28,565 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:13:28" (1/1) ... [2024-11-08 19:13:28,633 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:13:28,995 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_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[7163,7176] [2024-11-08 19:13:29,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:13:29,068 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:13:29,140 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_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[7163,7176] [2024-11-08 19:13:29,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:13:29,219 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:13:29,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:13:29 WrapperNode [2024-11-08 19:13:29,220 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:13:29,224 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:13:29,225 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:13:29,225 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:13:29,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:13:29" (1/1) ... [2024-11-08 19:13:29,248 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:13:29" (1/1) ... [2024-11-08 19:13:29,302 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 644 [2024-11-08 19:13:29,303 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:13:29,304 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:13:29,304 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:13:29,304 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:13:29,325 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:13:29" (1/1) ... [2024-11-08 19:13:29,326 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:13:29" (1/1) ... [2024-11-08 19:13:29,333 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:13:29" (1/1) ... [2024-11-08 19:13:29,360 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 19:13:29,361 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:13:29" (1/1) ... [2024-11-08 19:13:29,361 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:13:29" (1/1) ... [2024-11-08 19:13:29,381 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:13:29" (1/1) ... [2024-11-08 19:13:29,394 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:13:29" (1/1) ... [2024-11-08 19:13:29,397 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:13:29" (1/1) ... [2024-11-08 19:13:29,400 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:13:29" (1/1) ... [2024-11-08 19:13:29,406 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:13:29,407 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:13:29,408 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:13:29,408 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:13:29,409 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:13:29" (1/1) ... [2024-11-08 19:13:29,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:13:29,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:13:29,460 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:13:29,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:13:29,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:13:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 19:13:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:13:29,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:13:29,725 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:13:29,728 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:13:30,565 INFO L? ?]: Removed 81 outVars from TransFormulas that were not future-live. [2024-11-08 19:13:30,565 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:13:30,594 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:13:30,594 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 19:13:30,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:13:30 BoogieIcfgContainer [2024-11-08 19:13:30,595 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:13:30,598 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:13:30,598 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:13:30,603 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:13:30,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:13:28" (1/3) ... [2024-11-08 19:13:30,604 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57bef007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:13:30, skipping insertion in model container [2024-11-08 19:13:30,604 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:13:29" (2/3) ... [2024-11-08 19:13:30,605 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57bef007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:13:30, skipping insertion in model container [2024-11-08 19:13:30,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:13:30" (3/3) ... [2024-11-08 19:13:30,607 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-08 19:13:30,630 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:13:30,630 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 19:13:30,726 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:13:30,735 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;@50a7e861, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:13:30,736 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 19:13:30,742 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 159 states have (on average 1.7044025157232705) internal successors, (271), 160 states have internal predecessors, (271), 0 states have call successors, (0), 0 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 19:13:30,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-08 19:13:30,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:30,757 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] [2024-11-08 19:13:30,757 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:30,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:30,767 INFO L85 PathProgramCache]: Analyzing trace with hash 293786216, now seen corresponding path program 1 times [2024-11-08 19:13:30,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:30,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25798534] [2024-11-08 19:13:30,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:30,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:31,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:31,539 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 19:13:31,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:31,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25798534] [2024-11-08 19:13:31,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25798534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:31,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:31,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:13:31,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684201702] [2024-11-08 19:13:31,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:31,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:13:31,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:31,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:13:31,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:13:31,581 INFO L87 Difference]: Start difference. First operand has 161 states, 159 states have (on average 1.7044025157232705) internal successors, (271), 160 states have internal predecessors, (271), 0 states have call successors, (0), 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 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 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 19:13:31,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:31,878 INFO L93 Difference]: Finished difference Result 516 states and 834 transitions. [2024-11-08 19:13:31,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:13:31,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2024-11-08 19:13:31,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:31,906 INFO L225 Difference]: With dead ends: 516 [2024-11-08 19:13:31,906 INFO L226 Difference]: Without dead ends: 437 [2024-11-08 19:13:31,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:13:31,916 INFO L432 NwaCegarLoop]: 376 mSDtfsCounter, 908 mSDsluCounter, 910 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 1286 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:31,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [908 Valid, 1286 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:13:31,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-11-08 19:13:31,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 255. [2024-11-08 19:13:31,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 254 states have (on average 1.515748031496063) internal successors, (385), 254 states have internal predecessors, (385), 0 states have call successors, (0), 0 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 19:13:31,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 385 transitions. [2024-11-08 19:13:31,991 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 385 transitions. Word has length 49 [2024-11-08 19:13:31,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:31,992 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 385 transitions. [2024-11-08 19:13:31,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 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 19:13:31,993 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 385 transitions. [2024-11-08 19:13:31,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-08 19:13:31,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:31,995 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] [2024-11-08 19:13:31,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 19:13:31,996 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:31,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:31,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1697275801, now seen corresponding path program 1 times [2024-11-08 19:13:31,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:31,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042074931] [2024-11-08 19:13:31,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:31,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:32,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:32,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:13:32,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:32,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042074931] [2024-11-08 19:13:32,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042074931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:32,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:32,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:13:32,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906158503] [2024-11-08 19:13:32,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:32,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:13:32,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:32,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:13:32,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:13:32,177 INFO L87 Difference]: Start difference. First operand 255 states and 385 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 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 19:13:32,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:32,242 INFO L93 Difference]: Finished difference Result 627 states and 965 transitions. [2024-11-08 19:13:32,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:13:32,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2024-11-08 19:13:32,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:32,246 INFO L225 Difference]: With dead ends: 627 [2024-11-08 19:13:32,247 INFO L226 Difference]: Without dead ends: 429 [2024-11-08 19:13:32,248 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 19:13:32,250 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 160 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:32,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 422 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:13:32,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-11-08 19:13:32,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 427. [2024-11-08 19:13:32,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 426 states have (on average 1.5046948356807512) internal successors, (641), 426 states have internal predecessors, (641), 0 states have call successors, (0), 0 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 19:13:32,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 641 transitions. [2024-11-08 19:13:32,302 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 641 transitions. Word has length 52 [2024-11-08 19:13:32,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:32,303 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 641 transitions. [2024-11-08 19:13:32,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 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 19:13:32,303 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 641 transitions. [2024-11-08 19:13:32,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-08 19:13:32,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:32,307 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] [2024-11-08 19:13:32,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 19:13:32,309 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:32,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:32,313 INFO L85 PathProgramCache]: Analyzing trace with hash -195371450, now seen corresponding path program 1 times [2024-11-08 19:13:32,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:32,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135005782] [2024-11-08 19:13:32,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:32,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:32,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:32,503 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 19:13:32,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:32,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135005782] [2024-11-08 19:13:32,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135005782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:32,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:32,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:13:32,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627735446] [2024-11-08 19:13:32,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:32,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:13:32,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:32,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:13:32,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:13:32,508 INFO L87 Difference]: Start difference. First operand 427 states and 641 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 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 19:13:32,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:32,565 INFO L93 Difference]: Finished difference Result 1077 states and 1638 transitions. [2024-11-08 19:13:32,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:13:32,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2024-11-08 19:13:32,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:32,569 INFO L225 Difference]: With dead ends: 1077 [2024-11-08 19:13:32,570 INFO L226 Difference]: Without dead ends: 749 [2024-11-08 19:13:32,572 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 19:13:32,573 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 159 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:32,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 436 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:13:32,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2024-11-08 19:13:32,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 747. [2024-11-08 19:13:32,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 746 states have (on average 1.4946380697050938) internal successors, (1115), 746 states have internal predecessors, (1115), 0 states have call successors, (0), 0 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 19:13:32,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 1115 transitions. [2024-11-08 19:13:32,638 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 1115 transitions. Word has length 52 [2024-11-08 19:13:32,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:32,638 INFO L471 AbstractCegarLoop]: Abstraction has 747 states and 1115 transitions. [2024-11-08 19:13:32,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 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 19:13:32,639 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 1115 transitions. [2024-11-08 19:13:32,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-08 19:13:32,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:32,642 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] [2024-11-08 19:13:32,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 19:13:32,643 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:32,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:32,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1046972601, now seen corresponding path program 1 times [2024-11-08 19:13:32,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:32,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354328095] [2024-11-08 19:13:32,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:32,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:32,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:32,809 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 19:13:32,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:32,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354328095] [2024-11-08 19:13:32,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354328095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:32,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:32,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:13:32,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198263943] [2024-11-08 19:13:32,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:32,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:13:32,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:32,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:13:32,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:13:32,814 INFO L87 Difference]: Start difference. First operand 747 states and 1115 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 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 19:13:32,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:32,871 INFO L93 Difference]: Finished difference Result 1857 states and 2792 transitions. [2024-11-08 19:13:32,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:13:32,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2024-11-08 19:13:32,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:32,878 INFO L225 Difference]: With dead ends: 1857 [2024-11-08 19:13:32,879 INFO L226 Difference]: Without dead ends: 1293 [2024-11-08 19:13:32,880 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 19:13:32,882 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 146 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:32,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 436 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:13:32,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293 states. [2024-11-08 19:13:32,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1293 to 1291. [2024-11-08 19:13:32,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1291 states, 1290 states have (on average 1.4751937984496124) internal successors, (1903), 1290 states have internal predecessors, (1903), 0 states have call successors, (0), 0 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 19:13:32,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1291 states to 1291 states and 1903 transitions. [2024-11-08 19:13:32,930 INFO L78 Accepts]: Start accepts. Automaton has 1291 states and 1903 transitions. Word has length 52 [2024-11-08 19:13:32,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:32,931 INFO L471 AbstractCegarLoop]: Abstraction has 1291 states and 1903 transitions. [2024-11-08 19:13:32,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 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 19:13:32,931 INFO L276 IsEmpty]: Start isEmpty. Operand 1291 states and 1903 transitions. [2024-11-08 19:13:32,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-08 19:13:32,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:32,935 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] [2024-11-08 19:13:32,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 19:13:32,936 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:32,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:32,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1633425885, now seen corresponding path program 1 times [2024-11-08 19:13:32,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:32,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836799917] [2024-11-08 19:13:32,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:32,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:32,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:33,143 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 19:13:33,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:33,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836799917] [2024-11-08 19:13:33,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836799917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:33,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:33,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:13:33,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790532604] [2024-11-08 19:13:33,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:33,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:13:33,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:33,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:13:33,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:13:33,149 INFO L87 Difference]: Start difference. First operand 1291 states and 1903 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 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 19:13:33,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:33,312 INFO L93 Difference]: Finished difference Result 2511 states and 3768 transitions. [2024-11-08 19:13:33,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:13:33,313 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2024-11-08 19:13:33,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:33,322 INFO L225 Difference]: With dead ends: 2511 [2024-11-08 19:13:33,322 INFO L226 Difference]: Without dead ends: 2145 [2024-11-08 19:13:33,324 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:13:33,326 INFO L432 NwaCegarLoop]: 448 mSDtfsCounter, 639 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:33,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [639 Valid, 1142 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:13:33,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2145 states. [2024-11-08 19:13:33,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2145 to 1740. [2024-11-08 19:13:33,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1740 states, 1739 states have (on average 1.4836112708453133) internal successors, (2580), 1739 states have internal predecessors, (2580), 0 states have call successors, (0), 0 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 19:13:33,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1740 states to 1740 states and 2580 transitions. [2024-11-08 19:13:33,417 INFO L78 Accepts]: Start accepts. Automaton has 1740 states and 2580 transitions. Word has length 53 [2024-11-08 19:13:33,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:33,418 INFO L471 AbstractCegarLoop]: Abstraction has 1740 states and 2580 transitions. [2024-11-08 19:13:33,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 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 19:13:33,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1740 states and 2580 transitions. [2024-11-08 19:13:33,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-08 19:13:33,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:33,420 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] [2024-11-08 19:13:33,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 19:13:33,421 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:33,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:33,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1286312845, now seen corresponding path program 1 times [2024-11-08 19:13:33,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:33,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634964089] [2024-11-08 19:13:33,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:33,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:33,693 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 19:13:33,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:33,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634964089] [2024-11-08 19:13:33,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634964089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:33,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:33,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:13:33,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560125645] [2024-11-08 19:13:33,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:33,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:13:33,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:33,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:13:33,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:13:33,697 INFO L87 Difference]: Start difference. First operand 1740 states and 2580 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 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 19:13:33,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:33,844 INFO L93 Difference]: Finished difference Result 2960 states and 4445 transitions. [2024-11-08 19:13:33,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:13:33,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2024-11-08 19:13:33,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:33,855 INFO L225 Difference]: With dead ends: 2960 [2024-11-08 19:13:33,856 INFO L226 Difference]: Without dead ends: 2594 [2024-11-08 19:13:33,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:13:33,858 INFO L432 NwaCegarLoop]: 402 mSDtfsCounter, 631 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:33,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 997 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:13:33,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2594 states. [2024-11-08 19:13:33,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2594 to 2085. [2024-11-08 19:13:33,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2085 states, 2084 states have (on average 1.4889635316698657) internal successors, (3103), 2084 states have internal predecessors, (3103), 0 states have call successors, (0), 0 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 19:13:33,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2085 states to 2085 states and 3103 transitions. [2024-11-08 19:13:33,938 INFO L78 Accepts]: Start accepts. Automaton has 2085 states and 3103 transitions. Word has length 53 [2024-11-08 19:13:33,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:33,938 INFO L471 AbstractCegarLoop]: Abstraction has 2085 states and 3103 transitions. [2024-11-08 19:13:33,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 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 19:13:33,939 INFO L276 IsEmpty]: Start isEmpty. Operand 2085 states and 3103 transitions. [2024-11-08 19:13:33,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-08 19:13:33,940 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:33,940 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] [2024-11-08 19:13:33,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 19:13:33,944 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:33,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:33,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1015763425, now seen corresponding path program 1 times [2024-11-08 19:13:33,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:33,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230488103] [2024-11-08 19:13:33,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:33,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:34,155 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 19:13:34,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:34,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230488103] [2024-11-08 19:13:34,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230488103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:34,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:34,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:13:34,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543356063] [2024-11-08 19:13:34,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:34,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:13:34,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:34,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:13:34,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:13:34,159 INFO L87 Difference]: Start difference. First operand 2085 states and 3103 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 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 19:13:34,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:34,330 INFO L93 Difference]: Finished difference Result 3359 states and 5045 transitions. [2024-11-08 19:13:34,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:13:34,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2024-11-08 19:13:34,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:34,342 INFO L225 Difference]: With dead ends: 3359 [2024-11-08 19:13:34,343 INFO L226 Difference]: Without dead ends: 2993 [2024-11-08 19:13:34,345 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:13:34,346 INFO L432 NwaCegarLoop]: 429 mSDtfsCounter, 633 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:34,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 1142 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:13:34,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2993 states. [2024-11-08 19:13:34,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2993 to 2375. [2024-11-08 19:13:34,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2375 states, 2374 states have (on average 1.4928390901432183) internal successors, (3544), 2374 states have internal predecessors, (3544), 0 states have call successors, (0), 0 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 19:13:34,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2375 states to 2375 states and 3544 transitions. [2024-11-08 19:13:34,453 INFO L78 Accepts]: Start accepts. Automaton has 2375 states and 3544 transitions. Word has length 53 [2024-11-08 19:13:34,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:34,454 INFO L471 AbstractCegarLoop]: Abstraction has 2375 states and 3544 transitions. [2024-11-08 19:13:34,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 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 19:13:34,454 INFO L276 IsEmpty]: Start isEmpty. Operand 2375 states and 3544 transitions. [2024-11-08 19:13:34,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-08 19:13:34,457 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:34,458 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] [2024-11-08 19:13:34,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 19:13:34,459 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:34,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:34,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1968890954, now seen corresponding path program 1 times [2024-11-08 19:13:34,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:34,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413946504] [2024-11-08 19:13:34,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:34,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:34,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:34,671 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 19:13:34,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:34,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413946504] [2024-11-08 19:13:34,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413946504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:34,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:34,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:13:34,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798747861] [2024-11-08 19:13:34,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:34,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:13:34,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:34,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:13:34,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:13:34,678 INFO L87 Difference]: Start difference. First operand 2375 states and 3544 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 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 19:13:35,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:35,058 INFO L93 Difference]: Finished difference Result 5650 states and 8421 transitions. [2024-11-08 19:13:35,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:13:35,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-08 19:13:35,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:35,070 INFO L225 Difference]: With dead ends: 5650 [2024-11-08 19:13:35,070 INFO L226 Difference]: Without dead ends: 3302 [2024-11-08 19:13:35,074 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:13:35,075 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 902 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 902 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:35,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [902 Valid, 212 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:13:35,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3302 states. [2024-11-08 19:13:35,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3302 to 3275. [2024-11-08 19:13:35,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3275 states, 3274 states have (on average 1.4706780696395847) internal successors, (4815), 3274 states have internal predecessors, (4815), 0 states have call successors, (0), 0 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 19:13:35,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3275 states to 3275 states and 4815 transitions. [2024-11-08 19:13:35,169 INFO L78 Accepts]: Start accepts. Automaton has 3275 states and 4815 transitions. Word has length 57 [2024-11-08 19:13:35,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:35,169 INFO L471 AbstractCegarLoop]: Abstraction has 3275 states and 4815 transitions. [2024-11-08 19:13:35,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 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 19:13:35,170 INFO L276 IsEmpty]: Start isEmpty. Operand 3275 states and 4815 transitions. [2024-11-08 19:13:35,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-08 19:13:35,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:35,172 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] [2024-11-08 19:13:35,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 19:13:35,173 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:35,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:35,174 INFO L85 PathProgramCache]: Analyzing trace with hash -108107112, now seen corresponding path program 1 times [2024-11-08 19:13:35,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:35,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840354663] [2024-11-08 19:13:35,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:35,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:35,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:35,351 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 19:13:35,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:35,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840354663] [2024-11-08 19:13:35,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840354663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:35,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:35,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:13:35,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145369906] [2024-11-08 19:13:35,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:35,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:13:35,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:35,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:13:35,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:13:35,357 INFO L87 Difference]: Start difference. First operand 3275 states and 4815 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 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 19:13:35,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:35,700 INFO L93 Difference]: Finished difference Result 7802 states and 11466 transitions. [2024-11-08 19:13:35,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:13:35,701 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-08 19:13:35,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:35,716 INFO L225 Difference]: With dead ends: 7802 [2024-11-08 19:13:35,717 INFO L226 Difference]: Without dead ends: 4572 [2024-11-08 19:13:35,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:13:35,722 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 888 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 888 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:35,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [888 Valid, 230 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:13:35,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4572 states. [2024-11-08 19:13:35,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4572 to 4547. [2024-11-08 19:13:35,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4547 states, 4546 states have (on average 1.457765068191817) internal successors, (6627), 4546 states have internal predecessors, (6627), 0 states have call successors, (0), 0 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 19:13:35,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4547 states to 4547 states and 6627 transitions. [2024-11-08 19:13:35,841 INFO L78 Accepts]: Start accepts. Automaton has 4547 states and 6627 transitions. Word has length 57 [2024-11-08 19:13:35,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:35,841 INFO L471 AbstractCegarLoop]: Abstraction has 4547 states and 6627 transitions. [2024-11-08 19:13:35,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 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 19:13:35,842 INFO L276 IsEmpty]: Start isEmpty. Operand 4547 states and 6627 transitions. [2024-11-08 19:13:35,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-08 19:13:35,845 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:35,845 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] [2024-11-08 19:13:35,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 19:13:35,845 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:35,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:35,846 INFO L85 PathProgramCache]: Analyzing trace with hash 871846780, now seen corresponding path program 1 times [2024-11-08 19:13:35,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:35,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047453204] [2024-11-08 19:13:35,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:35,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:35,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:35,985 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 19:13:35,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:35,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047453204] [2024-11-08 19:13:35,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047453204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:35,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:35,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:13:35,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553596192] [2024-11-08 19:13:35,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:35,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:13:35,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:35,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:13:35,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:13:35,988 INFO L87 Difference]: Start difference. First operand 4547 states and 6627 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 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 19:13:36,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:36,309 INFO L93 Difference]: Finished difference Result 10777 states and 15690 transitions. [2024-11-08 19:13:36,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:13:36,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-08 19:13:36,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:36,379 INFO L225 Difference]: With dead ends: 10777 [2024-11-08 19:13:36,379 INFO L226 Difference]: Without dead ends: 6311 [2024-11-08 19:13:36,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:13:36,389 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 843 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:36,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 232 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:13:36,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6311 states. [2024-11-08 19:13:36,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6311 to 6276. [2024-11-08 19:13:36,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6276 states, 6275 states have (on average 1.4422310756972112) internal successors, (9050), 6275 states have internal predecessors, (9050), 0 states have call successors, (0), 0 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 19:13:36,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6276 states to 6276 states and 9050 transitions. [2024-11-08 19:13:36,601 INFO L78 Accepts]: Start accepts. Automaton has 6276 states and 9050 transitions. Word has length 58 [2024-11-08 19:13:36,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:36,606 INFO L471 AbstractCegarLoop]: Abstraction has 6276 states and 9050 transitions. [2024-11-08 19:13:36,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 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 19:13:36,606 INFO L276 IsEmpty]: Start isEmpty. Operand 6276 states and 9050 transitions. [2024-11-08 19:13:36,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-08 19:13:36,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:36,611 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] [2024-11-08 19:13:36,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 19:13:36,611 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:36,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:36,612 INFO L85 PathProgramCache]: Analyzing trace with hash 536362735, now seen corresponding path program 1 times [2024-11-08 19:13:36,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:36,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874297236] [2024-11-08 19:13:36,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:36,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:36,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:36,841 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 19:13:36,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:36,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874297236] [2024-11-08 19:13:36,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874297236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:36,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:36,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:13:36,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092854988] [2024-11-08 19:13:36,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:36,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:13:36,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:36,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:13:36,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:13:36,844 INFO L87 Difference]: Start difference. First operand 6276 states and 9050 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 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 19:13:37,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:37,366 INFO L93 Difference]: Finished difference Result 14202 states and 20354 transitions. [2024-11-08 19:13:37,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:13:37,367 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-08 19:13:37,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:37,417 INFO L225 Difference]: With dead ends: 14202 [2024-11-08 19:13:37,417 INFO L226 Difference]: Without dead ends: 10956 [2024-11-08 19:13:37,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:13:37,424 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 1107 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:37,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1107 Valid, 330 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:13:37,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10956 states. [2024-11-08 19:13:37,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10956 to 6296. [2024-11-08 19:13:37,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6296 states, 6295 states have (on average 1.4414614773629866) internal successors, (9074), 6295 states have internal predecessors, (9074), 0 states have call successors, (0), 0 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 19:13:37,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6296 states to 6296 states and 9074 transitions. [2024-11-08 19:13:37,656 INFO L78 Accepts]: Start accepts. Automaton has 6296 states and 9074 transitions. Word has length 59 [2024-11-08 19:13:37,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:37,657 INFO L471 AbstractCegarLoop]: Abstraction has 6296 states and 9074 transitions. [2024-11-08 19:13:37,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 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 19:13:37,657 INFO L276 IsEmpty]: Start isEmpty. Operand 6296 states and 9074 transitions. [2024-11-08 19:13:37,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-08 19:13:37,660 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:37,661 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] [2024-11-08 19:13:37,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 19:13:37,661 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:37,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:37,662 INFO L85 PathProgramCache]: Analyzing trace with hash -426804272, now seen corresponding path program 1 times [2024-11-08 19:13:37,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:37,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690497050] [2024-11-08 19:13:37,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:37,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:37,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:37,860 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 19:13:37,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:37,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690497050] [2024-11-08 19:13:37,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690497050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:37,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:37,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:13:37,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396294394] [2024-11-08 19:13:37,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:37,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:13:37,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:37,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:13:37,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:13:37,863 INFO L87 Difference]: Start difference. First operand 6296 states and 9074 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 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 19:13:38,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:38,408 INFO L93 Difference]: Finished difference Result 16430 states and 23516 transitions. [2024-11-08 19:13:38,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:13:38,408 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-08 19:13:38,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:38,439 INFO L225 Difference]: With dead ends: 16430 [2024-11-08 19:13:38,439 INFO L226 Difference]: Without dead ends: 13332 [2024-11-08 19:13:38,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:13:38,446 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 1288 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1288 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:38,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1288 Valid, 378 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:13:38,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13332 states. [2024-11-08 19:13:38,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13332 to 6390. [2024-11-08 19:13:38,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6390 states, 6389 states have (on average 1.4391923618719675) internal successors, (9195), 6389 states have internal predecessors, (9195), 0 states have call successors, (0), 0 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 19:13:38,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6390 states to 6390 states and 9195 transitions. [2024-11-08 19:13:38,654 INFO L78 Accepts]: Start accepts. Automaton has 6390 states and 9195 transitions. Word has length 59 [2024-11-08 19:13:38,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:38,655 INFO L471 AbstractCegarLoop]: Abstraction has 6390 states and 9195 transitions. [2024-11-08 19:13:38,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 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 19:13:38,656 INFO L276 IsEmpty]: Start isEmpty. Operand 6390 states and 9195 transitions. [2024-11-08 19:13:38,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-08 19:13:38,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:38,659 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] [2024-11-08 19:13:38,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 19:13:38,660 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:38,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:38,660 INFO L85 PathProgramCache]: Analyzing trace with hash -974429839, now seen corresponding path program 1 times [2024-11-08 19:13:38,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:38,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039774014] [2024-11-08 19:13:38,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:38,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:38,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:38,861 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 19:13:38,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:38,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039774014] [2024-11-08 19:13:38,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039774014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:38,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:38,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:13:38,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22121396] [2024-11-08 19:13:38,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:38,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:13:38,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:38,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:13:38,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:13:38,864 INFO L87 Difference]: Start difference. First operand 6390 states and 9195 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 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 19:13:39,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:39,424 INFO L93 Difference]: Finished difference Result 19083 states and 27326 transitions. [2024-11-08 19:13:39,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:13:39,425 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-08 19:13:39,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:39,460 INFO L225 Difference]: With dead ends: 19083 [2024-11-08 19:13:39,460 INFO L226 Difference]: Without dead ends: 15985 [2024-11-08 19:13:39,468 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:13:39,469 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 1445 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1445 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:39,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1445 Valid, 389 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:13:39,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15985 states. [2024-11-08 19:13:39,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15985 to 6446. [2024-11-08 19:13:39,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6446 states, 6445 states have (on average 1.4373933281613653) internal successors, (9264), 6445 states have internal predecessors, (9264), 0 states have call successors, (0), 0 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 19:13:39,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6446 states to 6446 states and 9264 transitions. [2024-11-08 19:13:39,773 INFO L78 Accepts]: Start accepts. Automaton has 6446 states and 9264 transitions. Word has length 59 [2024-11-08 19:13:39,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:39,774 INFO L471 AbstractCegarLoop]: Abstraction has 6446 states and 9264 transitions. [2024-11-08 19:13:39,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 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 19:13:39,774 INFO L276 IsEmpty]: Start isEmpty. Operand 6446 states and 9264 transitions. [2024-11-08 19:13:39,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-08 19:13:39,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:39,780 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:13:39,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 19:13:39,780 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:39,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:39,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1695106365, now seen corresponding path program 1 times [2024-11-08 19:13:39,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:39,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66259261] [2024-11-08 19:13:39,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:39,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:39,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:40,450 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 19:13:40,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:40,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66259261] [2024-11-08 19:13:40,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66259261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:40,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:40,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:13:40,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590210424] [2024-11-08 19:13:40,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:40,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:13:40,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:40,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:13:40,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:13:40,452 INFO L87 Difference]: Start difference. First operand 6446 states and 9264 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 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 19:13:41,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:41,490 INFO L93 Difference]: Finished difference Result 15299 states and 22049 transitions. [2024-11-08 19:13:41,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 19:13:41,490 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-08 19:13:41,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:41,511 INFO L225 Difference]: With dead ends: 15299 [2024-11-08 19:13:41,511 INFO L226 Difference]: Without dead ends: 10109 [2024-11-08 19:13:41,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-08 19:13:41,518 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 1024 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:41,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1024 Valid, 922 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 19:13:41,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10109 states. [2024-11-08 19:13:41,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10109 to 6318. [2024-11-08 19:13:41,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6318 states, 6317 states have (on average 1.434383409846446) internal successors, (9061), 6317 states have internal predecessors, (9061), 0 states have call successors, (0), 0 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 19:13:41,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6318 states to 6318 states and 9061 transitions. [2024-11-08 19:13:41,681 INFO L78 Accepts]: Start accepts. Automaton has 6318 states and 9061 transitions. Word has length 61 [2024-11-08 19:13:41,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:41,682 INFO L471 AbstractCegarLoop]: Abstraction has 6318 states and 9061 transitions. [2024-11-08 19:13:41,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 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 19:13:41,682 INFO L276 IsEmpty]: Start isEmpty. Operand 6318 states and 9061 transitions. [2024-11-08 19:13:41,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-08 19:13:41,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:41,687 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] [2024-11-08 19:13:41,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 19:13:41,687 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:41,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:41,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1748259780, now seen corresponding path program 1 times [2024-11-08 19:13:41,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:41,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974936002] [2024-11-08 19:13:41,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:41,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:41,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:42,181 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 19:13:42,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:42,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974936002] [2024-11-08 19:13:42,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974936002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:42,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:42,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:13:42,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315229276] [2024-11-08 19:13:42,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:42,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:13:42,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:42,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:13:42,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:13:42,185 INFO L87 Difference]: Start difference. First operand 6318 states and 9061 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 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 19:13:43,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:43,137 INFO L93 Difference]: Finished difference Result 15339 states and 22038 transitions. [2024-11-08 19:13:43,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 19:13:43,137 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-08 19:13:43,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:43,158 INFO L225 Difference]: With dead ends: 15339 [2024-11-08 19:13:43,159 INFO L226 Difference]: Without dead ends: 10065 [2024-11-08 19:13:43,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-08 19:13:43,166 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 968 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:43,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [968 Valid, 721 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 19:13:43,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10065 states. [2024-11-08 19:13:43,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10065 to 6129. [2024-11-08 19:13:43,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6129 states, 6128 states have (on average 1.4319516971279374) internal successors, (8775), 6128 states have internal predecessors, (8775), 0 states have call successors, (0), 0 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 19:13:43,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6129 states to 6129 states and 8775 transitions. [2024-11-08 19:13:43,402 INFO L78 Accepts]: Start accepts. Automaton has 6129 states and 8775 transitions. Word has length 61 [2024-11-08 19:13:43,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:43,403 INFO L471 AbstractCegarLoop]: Abstraction has 6129 states and 8775 transitions. [2024-11-08 19:13:43,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 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 19:13:43,403 INFO L276 IsEmpty]: Start isEmpty. Operand 6129 states and 8775 transitions. [2024-11-08 19:13:43,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-08 19:13:43,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:43,415 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] [2024-11-08 19:13:43,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 19:13:43,415 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:43,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:43,416 INFO L85 PathProgramCache]: Analyzing trace with hash 11490693, now seen corresponding path program 1 times [2024-11-08 19:13:43,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:43,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742188466] [2024-11-08 19:13:43,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:43,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:43,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:43,795 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 19:13:43,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:43,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742188466] [2024-11-08 19:13:43,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742188466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:43,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:43,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:13:43,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089230535] [2024-11-08 19:13:43,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:43,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:13:43,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:43,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:13:43,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:13:43,798 INFO L87 Difference]: Start difference. First operand 6129 states and 8775 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 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 19:13:44,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:44,570 INFO L93 Difference]: Finished difference Result 14937 states and 21487 transitions. [2024-11-08 19:13:44,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 19:13:44,571 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-08 19:13:44,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:44,585 INFO L225 Difference]: With dead ends: 14937 [2024-11-08 19:13:44,585 INFO L226 Difference]: Without dead ends: 9719 [2024-11-08 19:13:44,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-11-08 19:13:44,592 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 835 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:44,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 792 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 19:13:44,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9719 states. [2024-11-08 19:13:44,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9719 to 5980. [2024-11-08 19:13:44,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5980 states, 5979 states have (on average 1.4323465462451914) internal successors, (8564), 5979 states have internal predecessors, (8564), 0 states have call successors, (0), 0 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 19:13:44,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5980 states to 5980 states and 8564 transitions. [2024-11-08 19:13:44,883 INFO L78 Accepts]: Start accepts. Automaton has 5980 states and 8564 transitions. Word has length 61 [2024-11-08 19:13:44,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:44,884 INFO L471 AbstractCegarLoop]: Abstraction has 5980 states and 8564 transitions. [2024-11-08 19:13:44,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 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 19:13:44,884 INFO L276 IsEmpty]: Start isEmpty. Operand 5980 states and 8564 transitions. [2024-11-08 19:13:44,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-08 19:13:44,889 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:44,889 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] [2024-11-08 19:13:44,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 19:13:44,890 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:44,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:44,897 INFO L85 PathProgramCache]: Analyzing trace with hash -746765663, now seen corresponding path program 1 times [2024-11-08 19:13:44,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:44,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695596817] [2024-11-08 19:13:44,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:44,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:44,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:45,018 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 19:13:45,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:45,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695596817] [2024-11-08 19:13:45,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695596817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:45,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:45,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:13:45,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857340416] [2024-11-08 19:13:45,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:45,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:13:45,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:45,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:13:45,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:13:45,023 INFO L87 Difference]: Start difference. First operand 5980 states and 8564 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 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 19:13:45,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:45,096 INFO L93 Difference]: Finished difference Result 9027 states and 12937 transitions. [2024-11-08 19:13:45,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:13:45,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-08 19:13:45,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:45,110 INFO L225 Difference]: With dead ends: 9027 [2024-11-08 19:13:45,110 INFO L226 Difference]: Without dead ends: 5797 [2024-11-08 19:13:45,115 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 19:13:45,116 INFO L432 NwaCegarLoop]: 344 mSDtfsCounter, 150 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:45,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 526 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:13:45,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5797 states. [2024-11-08 19:13:45,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5797 to 5795. [2024-11-08 19:13:45,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5795 states, 5794 states have (on average 1.4126682775284778) internal successors, (8185), 5794 states have internal predecessors, (8185), 0 states have call successors, (0), 0 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 19:13:45,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5795 states to 5795 states and 8185 transitions. [2024-11-08 19:13:45,269 INFO L78 Accepts]: Start accepts. Automaton has 5795 states and 8185 transitions. Word has length 62 [2024-11-08 19:13:45,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:45,270 INFO L471 AbstractCegarLoop]: Abstraction has 5795 states and 8185 transitions. [2024-11-08 19:13:45,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 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 19:13:45,270 INFO L276 IsEmpty]: Start isEmpty. Operand 5795 states and 8185 transitions. [2024-11-08 19:13:45,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-08 19:13:45,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:45,275 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] [2024-11-08 19:13:45,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 19:13:45,276 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:45,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:45,277 INFO L85 PathProgramCache]: Analyzing trace with hash -691619625, now seen corresponding path program 1 times [2024-11-08 19:13:45,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:45,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922375809] [2024-11-08 19:13:45,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:45,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:45,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:45,381 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 19:13:45,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:45,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922375809] [2024-11-08 19:13:45,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922375809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:45,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:45,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:13:45,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010408141] [2024-11-08 19:13:45,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:45,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:13:45,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:45,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:13:45,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:13:45,384 INFO L87 Difference]: Start difference. First operand 5795 states and 8185 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 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 19:13:45,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:45,431 INFO L93 Difference]: Finished difference Result 8079 states and 11408 transitions. [2024-11-08 19:13:45,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:13:45,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-08 19:13:45,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:45,441 INFO L225 Difference]: With dead ends: 8079 [2024-11-08 19:13:45,441 INFO L226 Difference]: Without dead ends: 5014 [2024-11-08 19:13:45,445 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 19:13:45,446 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 136 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:45,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 515 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:13:45,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5014 states. [2024-11-08 19:13:45,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5014 to 5012. [2024-11-08 19:13:45,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5012 states, 5011 states have (on average 1.3883456395928957) internal successors, (6957), 5011 states have internal predecessors, (6957), 0 states have call successors, (0), 0 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 19:13:45,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5012 states to 5012 states and 6957 transitions. [2024-11-08 19:13:45,590 INFO L78 Accepts]: Start accepts. Automaton has 5012 states and 6957 transitions. Word has length 62 [2024-11-08 19:13:45,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:45,590 INFO L471 AbstractCegarLoop]: Abstraction has 5012 states and 6957 transitions. [2024-11-08 19:13:45,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 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 19:13:45,591 INFO L276 IsEmpty]: Start isEmpty. Operand 5012 states and 6957 transitions. [2024-11-08 19:13:45,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-08 19:13:45,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:45,594 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] [2024-11-08 19:13:45,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 19:13:45,594 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:45,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:45,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1051063940, now seen corresponding path program 1 times [2024-11-08 19:13:45,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:45,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122017868] [2024-11-08 19:13:45,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:45,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:45,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:45,694 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 19:13:45,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:45,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122017868] [2024-11-08 19:13:45,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122017868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:45,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:45,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:13:45,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253929049] [2024-11-08 19:13:45,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:45,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:13:45,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:45,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:13:45,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:13:45,699 INFO L87 Difference]: Start difference. First operand 5012 states and 6957 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 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 19:13:45,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:45,743 INFO L93 Difference]: Finished difference Result 6614 states and 9183 transitions. [2024-11-08 19:13:45,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:13:45,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-08 19:13:45,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:45,752 INFO L225 Difference]: With dead ends: 6614 [2024-11-08 19:13:45,752 INFO L226 Difference]: Without dead ends: 3858 [2024-11-08 19:13:45,756 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:13:45,756 INFO L432 NwaCegarLoop]: 331 mSDtfsCounter, 148 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:45,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 526 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:13:45,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3858 states. [2024-11-08 19:13:45,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3858 to 3856. [2024-11-08 19:13:45,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3856 states, 3855 states have (on average 1.364461738002594) internal successors, (5260), 3855 states have internal predecessors, (5260), 0 states have call successors, (0), 0 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 19:13:45,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3856 states to 3856 states and 5260 transitions. [2024-11-08 19:13:45,819 INFO L78 Accepts]: Start accepts. Automaton has 3856 states and 5260 transitions. Word has length 62 [2024-11-08 19:13:45,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:45,819 INFO L471 AbstractCegarLoop]: Abstraction has 3856 states and 5260 transitions. [2024-11-08 19:13:45,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 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 19:13:45,820 INFO L276 IsEmpty]: Start isEmpty. Operand 3856 states and 5260 transitions. [2024-11-08 19:13:45,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-08 19:13:45,823 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:45,823 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] [2024-11-08 19:13:45,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 19:13:45,824 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:45,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:45,824 INFO L85 PathProgramCache]: Analyzing trace with hash -751537894, now seen corresponding path program 1 times [2024-11-08 19:13:45,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:45,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652870397] [2024-11-08 19:13:45,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:45,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:45,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:45,897 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 19:13:45,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:45,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652870397] [2024-11-08 19:13:45,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652870397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:45,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:45,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:13:45,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625960390] [2024-11-08 19:13:45,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:45,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:13:45,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:45,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:13:45,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:13:45,900 INFO L87 Difference]: Start difference. First operand 3856 states and 5260 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 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 19:13:45,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:45,971 INFO L93 Difference]: Finished difference Result 7099 states and 9747 transitions. [2024-11-08 19:13:45,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:13:45,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-08 19:13:45,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:45,981 INFO L225 Difference]: With dead ends: 7099 [2024-11-08 19:13:45,981 INFO L226 Difference]: Without dead ends: 5180 [2024-11-08 19:13:45,984 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 19:13:45,986 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 173 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:45,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 346 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:13:45,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5180 states. [2024-11-08 19:13:46,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5180 to 3667. [2024-11-08 19:13:46,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3667 states, 3666 states have (on average 1.363884342607747) internal successors, (5000), 3666 states have internal predecessors, (5000), 0 states have call successors, (0), 0 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 19:13:46,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3667 states to 3667 states and 5000 transitions. [2024-11-08 19:13:46,058 INFO L78 Accepts]: Start accepts. Automaton has 3667 states and 5000 transitions. Word has length 63 [2024-11-08 19:13:46,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:46,059 INFO L471 AbstractCegarLoop]: Abstraction has 3667 states and 5000 transitions. [2024-11-08 19:13:46,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 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 19:13:46,059 INFO L276 IsEmpty]: Start isEmpty. Operand 3667 states and 5000 transitions. [2024-11-08 19:13:46,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-08 19:13:46,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:46,064 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] [2024-11-08 19:13:46,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 19:13:46,064 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:46,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:46,065 INFO L85 PathProgramCache]: Analyzing trace with hash 296287221, now seen corresponding path program 1 times [2024-11-08 19:13:46,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:46,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684777954] [2024-11-08 19:13:46,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:46,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:46,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:48,199 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 19:13:48,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:48,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684777954] [2024-11-08 19:13:48,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684777954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:48,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:48,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-08 19:13:48,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855963760] [2024-11-08 19:13:48,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:48,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-08 19:13:48,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:48,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-08 19:13:48,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2024-11-08 19:13:48,203 INFO L87 Difference]: Start difference. First operand 3667 states and 5000 transitions. Second operand has 23 states, 23 states have (on average 2.739130434782609) internal successors, (63), 23 states have internal predecessors, (63), 0 states have call successors, (0), 0 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 19:13:52,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:52,533 INFO L93 Difference]: Finished difference Result 6811 states and 9341 transitions. [2024-11-08 19:13:52,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-08 19:13:52,534 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.739130434782609) internal successors, (63), 23 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-08 19:13:52,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:52,548 INFO L225 Difference]: With dead ends: 6811 [2024-11-08 19:13:52,548 INFO L226 Difference]: Without dead ends: 6744 [2024-11-08 19:13:52,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=321, Invalid=1571, Unknown=0, NotChecked=0, Total=1892 [2024-11-08 19:13:52,552 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 2009 mSDsluCounter, 3232 mSDsCounter, 0 mSdLazyCounter, 2557 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2009 SdHoareTripleChecker+Valid, 3468 SdHoareTripleChecker+Invalid, 2571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:52,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2009 Valid, 3468 Invalid, 2571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 2557 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-08 19:13:52,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6744 states. [2024-11-08 19:13:52,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6744 to 3679. [2024-11-08 19:13:52,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3679 states, 3678 states have (on average 1.3635127786840675) internal successors, (5015), 3678 states have internal predecessors, (5015), 0 states have call successors, (0), 0 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 19:13:52,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3679 states to 3679 states and 5015 transitions. [2024-11-08 19:13:52,627 INFO L78 Accepts]: Start accepts. Automaton has 3679 states and 5015 transitions. Word has length 63 [2024-11-08 19:13:52,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:52,628 INFO L471 AbstractCegarLoop]: Abstraction has 3679 states and 5015 transitions. [2024-11-08 19:13:52,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.739130434782609) internal successors, (63), 23 states have internal predecessors, (63), 0 states have call successors, (0), 0 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 19:13:52,628 INFO L276 IsEmpty]: Start isEmpty. Operand 3679 states and 5015 transitions. [2024-11-08 19:13:52,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-08 19:13:52,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:52,631 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] [2024-11-08 19:13:52,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 19:13:52,632 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:52,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:52,633 INFO L85 PathProgramCache]: Analyzing trace with hash -678356547, now seen corresponding path program 1 times [2024-11-08 19:13:52,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:52,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835956852] [2024-11-08 19:13:52,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:52,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:52,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:53,740 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 19:13:53,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:53,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835956852] [2024-11-08 19:13:53,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835956852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:53,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:53,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-08 19:13:53,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54667804] [2024-11-08 19:13:53,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:53,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 19:13:53,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:53,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 19:13:53,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:13:53,744 INFO L87 Difference]: Start difference. First operand 3679 states and 5015 transitions. Second operand has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 0 states have call successors, (0), 0 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 19:13:55,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:55,106 INFO L93 Difference]: Finished difference Result 8031 states and 11044 transitions. [2024-11-08 19:13:55,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 19:13:55,107 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-08 19:13:55,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:55,117 INFO L225 Difference]: With dead ends: 8031 [2024-11-08 19:13:55,117 INFO L226 Difference]: Without dead ends: 7643 [2024-11-08 19:13:55,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2024-11-08 19:13:55,120 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 2118 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2118 SdHoareTripleChecker+Valid, 1425 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:55,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2118 Valid, 1425 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 19:13:55,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7643 states. [2024-11-08 19:13:55,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7643 to 3590. [2024-11-08 19:13:55,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3590 states, 3589 states have (on average 1.3636110337141265) internal successors, (4894), 3589 states have internal predecessors, (4894), 0 states have call successors, (0), 0 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 19:13:55,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3590 states to 3590 states and 4894 transitions. [2024-11-08 19:13:55,192 INFO L78 Accepts]: Start accepts. Automaton has 3590 states and 4894 transitions. Word has length 63 [2024-11-08 19:13:55,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:55,192 INFO L471 AbstractCegarLoop]: Abstraction has 3590 states and 4894 transitions. [2024-11-08 19:13:55,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 0 states have call successors, (0), 0 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 19:13:55,193 INFO L276 IsEmpty]: Start isEmpty. Operand 3590 states and 4894 transitions. [2024-11-08 19:13:55,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-08 19:13:55,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:55,196 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] [2024-11-08 19:13:55,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 19:13:55,196 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:55,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:55,197 INFO L85 PathProgramCache]: Analyzing trace with hash 393964366, now seen corresponding path program 1 times [2024-11-08 19:13:55,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:55,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714044956] [2024-11-08 19:13:55,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:55,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:55,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:55,251 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 19:13:55,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:55,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714044956] [2024-11-08 19:13:55,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714044956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:55,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:55,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:13:55,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857240524] [2024-11-08 19:13:55,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:55,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:13:55,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:55,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:13:55,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:13:55,253 INFO L87 Difference]: Start difference. First operand 3590 states and 4894 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 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 19:13:55,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:55,335 INFO L93 Difference]: Finished difference Result 6698 states and 9187 transitions. [2024-11-08 19:13:55,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:13:55,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-08 19:13:55,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:55,341 INFO L225 Difference]: With dead ends: 6698 [2024-11-08 19:13:55,342 INFO L226 Difference]: Without dead ends: 4803 [2024-11-08 19:13:55,344 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 19:13:55,345 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 171 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:55,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 327 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:13:55,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4803 states. [2024-11-08 19:13:55,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4803 to 3373. [2024-11-08 19:13:55,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3373 states, 3372 states have (on average 1.3629893238434163) internal successors, (4596), 3372 states have internal predecessors, (4596), 0 states have call successors, (0), 0 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 19:13:55,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3373 states to 3373 states and 4596 transitions. [2024-11-08 19:13:55,397 INFO L78 Accepts]: Start accepts. Automaton has 3373 states and 4596 transitions. Word has length 63 [2024-11-08 19:13:55,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:55,397 INFO L471 AbstractCegarLoop]: Abstraction has 3373 states and 4596 transitions. [2024-11-08 19:13:55,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 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 19:13:55,397 INFO L276 IsEmpty]: Start isEmpty. Operand 3373 states and 4596 transitions. [2024-11-08 19:13:55,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-08 19:13:55,400 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:55,400 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] [2024-11-08 19:13:55,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 19:13:55,401 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:55,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:55,401 INFO L85 PathProgramCache]: Analyzing trace with hash -771182262, now seen corresponding path program 1 times [2024-11-08 19:13:55,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:55,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62719794] [2024-11-08 19:13:55,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:55,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:55,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:56,955 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 19:13:56,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:56,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62719794] [2024-11-08 19:13:56,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62719794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:56,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:56,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-08 19:13:56,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967631097] [2024-11-08 19:13:56,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:56,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-08 19:13:56,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:56,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-08 19:13:56,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2024-11-08 19:13:56,958 INFO L87 Difference]: Start difference. First operand 3373 states and 4596 transitions. Second operand has 19 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 19 states have internal predecessors, (64), 0 states have call successors, (0), 0 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 19:14:00,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:14:00,459 INFO L93 Difference]: Finished difference Result 7164 states and 9828 transitions. [2024-11-08 19:14:00,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-08 19:14:00,460 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 19 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-11-08 19:14:00,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:14:00,466 INFO L225 Difference]: With dead ends: 7164 [2024-11-08 19:14:00,467 INFO L226 Difference]: Without dead ends: 7026 [2024-11-08 19:14:00,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=300, Invalid=1032, Unknown=0, NotChecked=0, Total=1332 [2024-11-08 19:14:00,469 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 1989 mSDsluCounter, 2926 mSDsCounter, 0 mSdLazyCounter, 1972 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1989 SdHoareTripleChecker+Valid, 3147 SdHoareTripleChecker+Invalid, 1986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 19:14:00,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1989 Valid, 3147 Invalid, 1986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1972 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 19:14:00,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7026 states. [2024-11-08 19:14:00,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7026 to 3350. [2024-11-08 19:14:00,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3350 states, 3349 states have (on average 1.36249626754255) internal successors, (4563), 3349 states have internal predecessors, (4563), 0 states have call successors, (0), 0 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 19:14:00,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3350 states to 3350 states and 4563 transitions. [2024-11-08 19:14:00,537 INFO L78 Accepts]: Start accepts. Automaton has 3350 states and 4563 transitions. Word has length 64 [2024-11-08 19:14:00,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:14:00,538 INFO L471 AbstractCegarLoop]: Abstraction has 3350 states and 4563 transitions. [2024-11-08 19:14:00,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 19 states have internal predecessors, (64), 0 states have call successors, (0), 0 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 19:14:00,538 INFO L276 IsEmpty]: Start isEmpty. Operand 3350 states and 4563 transitions. [2024-11-08 19:14:00,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-08 19:14:00,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:14:00,543 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] [2024-11-08 19:14:00,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-08 19:14:00,543 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:14:00,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:00,544 INFO L85 PathProgramCache]: Analyzing trace with hash 880460014, now seen corresponding path program 1 times [2024-11-08 19:14:00,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:00,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497416344] [2024-11-08 19:14:00,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:00,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:00,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:00,693 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 19:14:00,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:14:00,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497416344] [2024-11-08 19:14:00,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497416344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:14:00,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:14:00,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:14:00,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636679706] [2024-11-08 19:14:00,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:00,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:14:00,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:14:00,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:14:00,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:14:00,697 INFO L87 Difference]: Start difference. First operand 3350 states and 4563 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 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 19:14:00,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:14:00,791 INFO L93 Difference]: Finished difference Result 3356 states and 4566 transitions. [2024-11-08 19:14:00,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:14:00,792 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-11-08 19:14:00,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:14:00,796 INFO L225 Difference]: With dead ends: 3356 [2024-11-08 19:14:00,796 INFO L226 Difference]: Without dead ends: 2897 [2024-11-08 19:14:00,797 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:14:00,798 INFO L432 NwaCegarLoop]: 352 mSDtfsCounter, 625 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:14:00,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [625 Valid, 620 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:14:00,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2897 states. [2024-11-08 19:14:00,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2897 to 2893. [2024-11-08 19:14:00,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2893 states, 2892 states have (on average 1.3641078838174274) internal successors, (3945), 2892 states have internal predecessors, (3945), 0 states have call successors, (0), 0 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 19:14:00,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 3945 transitions. [2024-11-08 19:14:00,847 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 3945 transitions. Word has length 67 [2024-11-08 19:14:00,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:14:00,848 INFO L471 AbstractCegarLoop]: Abstraction has 2893 states and 3945 transitions. [2024-11-08 19:14:00,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 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 19:14:00,848 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 3945 transitions. [2024-11-08 19:14:00,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-08 19:14:00,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:14:00,852 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] [2024-11-08 19:14:00,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-08 19:14:00,853 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:14:00,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:00,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1617522588, now seen corresponding path program 1 times [2024-11-08 19:14:00,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:00,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933002718] [2024-11-08 19:14:00,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:00,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:00,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:00,970 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 19:14:00,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:14:00,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933002718] [2024-11-08 19:14:00,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933002718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:14:00,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:14:00,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:14:00,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946032537] [2024-11-08 19:14:00,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:00,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:14:00,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:14:00,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:14:00,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:14:00,974 INFO L87 Difference]: Start difference. First operand 2893 states and 3945 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 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 19:14:01,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:14:01,018 INFO L93 Difference]: Finished difference Result 7266 states and 10027 transitions. [2024-11-08 19:14:01,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:14:01,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-08 19:14:01,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:14:01,025 INFO L225 Difference]: With dead ends: 7266 [2024-11-08 19:14:01,025 INFO L226 Difference]: Without dead ends: 4977 [2024-11-08 19:14:01,028 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 19:14:01,029 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 118 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:14:01,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 439 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:14:01,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4977 states. [2024-11-08 19:14:01,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4977 to 4633. [2024-11-08 19:14:01,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4633 states, 4632 states have (on average 1.3693868739205526) internal successors, (6343), 4632 states have internal predecessors, (6343), 0 states have call successors, (0), 0 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 19:14:01,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4633 states to 4633 states and 6343 transitions. [2024-11-08 19:14:01,099 INFO L78 Accepts]: Start accepts. Automaton has 4633 states and 6343 transitions. Word has length 70 [2024-11-08 19:14:01,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:14:01,099 INFO L471 AbstractCegarLoop]: Abstraction has 4633 states and 6343 transitions. [2024-11-08 19:14:01,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 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 19:14:01,099 INFO L276 IsEmpty]: Start isEmpty. Operand 4633 states and 6343 transitions. [2024-11-08 19:14:01,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-08 19:14:01,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:14:01,103 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] [2024-11-08 19:14:01,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-08 19:14:01,103 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:14:01,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:01,104 INFO L85 PathProgramCache]: Analyzing trace with hash 121806462, now seen corresponding path program 1 times [2024-11-08 19:14:01,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:01,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713803665] [2024-11-08 19:14:01,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:01,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:01,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:01,237 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 19:14:01,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:14:01,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713803665] [2024-11-08 19:14:01,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713803665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:14:01,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:14:01,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:14:01,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330396625] [2024-11-08 19:14:01,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:01,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:14:01,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:14:01,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:14:01,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:14:01,239 INFO L87 Difference]: Start difference. First operand 4633 states and 6343 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 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 19:14:01,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:14:01,298 INFO L93 Difference]: Finished difference Result 12281 states and 16905 transitions. [2024-11-08 19:14:01,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:14:01,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-08 19:14:01,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:14:01,308 INFO L225 Difference]: With dead ends: 12281 [2024-11-08 19:14:01,309 INFO L226 Difference]: Without dead ends: 8252 [2024-11-08 19:14:01,313 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 19:14:01,315 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 107 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:14:01,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 431 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:14:01,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8252 states. [2024-11-08 19:14:01,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8252 to 7662. [2024-11-08 19:14:01,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7662 states, 7661 states have (on average 1.368359222033677) internal successors, (10483), 7661 states have internal predecessors, (10483), 0 states have call successors, (0), 0 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 19:14:01,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7662 states to 7662 states and 10483 transitions. [2024-11-08 19:14:01,432 INFO L78 Accepts]: Start accepts. Automaton has 7662 states and 10483 transitions. Word has length 71 [2024-11-08 19:14:01,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:14:01,432 INFO L471 AbstractCegarLoop]: Abstraction has 7662 states and 10483 transitions. [2024-11-08 19:14:01,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 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 19:14:01,432 INFO L276 IsEmpty]: Start isEmpty. Operand 7662 states and 10483 transitions. [2024-11-08 19:14:01,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-08 19:14:01,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:14:01,436 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] [2024-11-08 19:14:01,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-08 19:14:01,436 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:14:01,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:01,437 INFO L85 PathProgramCache]: Analyzing trace with hash -577663364, now seen corresponding path program 1 times [2024-11-08 19:14:01,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:01,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641510958] [2024-11-08 19:14:01,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:01,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:01,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:01,579 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 19:14:01,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:14:01,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641510958] [2024-11-08 19:14:01,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641510958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:14:01,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:14:01,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:14:01,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560105411] [2024-11-08 19:14:01,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:01,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:14:01,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:14:01,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:14:01,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:14:01,641 INFO L87 Difference]: Start difference. First operand 7662 states and 10483 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 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 19:14:01,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:14:01,720 INFO L93 Difference]: Finished difference Result 20534 states and 28057 transitions. [2024-11-08 19:14:01,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:14:01,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2024-11-08 19:14:01,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:14:01,739 INFO L225 Difference]: With dead ends: 20534 [2024-11-08 19:14:01,740 INFO L226 Difference]: Without dead ends: 13366 [2024-11-08 19:14:01,747 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 19:14:01,748 INFO L432 NwaCegarLoop]: 282 mSDtfsCounter, 113 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:14:01,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 430 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:14:01,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13366 states. [2024-11-08 19:14:01,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13366 to 12188. [2024-11-08 19:14:01,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12188 states, 12187 states have (on average 1.353245261344055) internal successors, (16492), 12187 states have internal predecessors, (16492), 0 states have call successors, (0), 0 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 19:14:01,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12188 states to 12188 states and 16492 transitions. [2024-11-08 19:14:01,922 INFO L78 Accepts]: Start accepts. Automaton has 12188 states and 16492 transitions. Word has length 73 [2024-11-08 19:14:01,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:14:01,923 INFO L471 AbstractCegarLoop]: Abstraction has 12188 states and 16492 transitions. [2024-11-08 19:14:01,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 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 19:14:01,923 INFO L276 IsEmpty]: Start isEmpty. Operand 12188 states and 16492 transitions. [2024-11-08 19:14:01,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-08 19:14:01,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:14:01,926 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] [2024-11-08 19:14:01,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-08 19:14:01,926 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:14:01,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:01,927 INFO L85 PathProgramCache]: Analyzing trace with hash -686006937, now seen corresponding path program 1 times [2024-11-08 19:14:01,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:01,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110245226] [2024-11-08 19:14:01,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:01,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:01,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:02,266 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 19:14:02,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:14:02,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110245226] [2024-11-08 19:14:02,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110245226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:14:02,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:14:02,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:14:02,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041532782] [2024-11-08 19:14:02,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:02,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:14:02,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:14:02,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:14:02,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:14:02,269 INFO L87 Difference]: Start difference. First operand 12188 states and 16492 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 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 19:14:02,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:14:02,343 INFO L93 Difference]: Finished difference Result 13462 states and 18189 transitions. [2024-11-08 19:14:02,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:14:02,344 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-11-08 19:14:02,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:14:02,361 INFO L225 Difference]: With dead ends: 13462 [2024-11-08 19:14:02,361 INFO L226 Difference]: Without dead ends: 13460 [2024-11-08 19:14:02,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:14:02,366 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 0 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:14:02,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 965 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:14:02,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13460 states. [2024-11-08 19:14:02,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13460 to 13460. [2024-11-08 19:14:02,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13460 states, 13459 states have (on average 1.3198603165168288) internal successors, (17764), 13459 states have internal predecessors, (17764), 0 states have call successors, (0), 0 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 19:14:02,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13460 states to 13460 states and 17764 transitions. [2024-11-08 19:14:02,554 INFO L78 Accepts]: Start accepts. Automaton has 13460 states and 17764 transitions. Word has length 74 [2024-11-08 19:14:02,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:14:02,554 INFO L471 AbstractCegarLoop]: Abstraction has 13460 states and 17764 transitions. [2024-11-08 19:14:02,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 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 19:14:02,555 INFO L276 IsEmpty]: Start isEmpty. Operand 13460 states and 17764 transitions. [2024-11-08 19:14:02,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-08 19:14:02,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:14:02,557 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] [2024-11-08 19:14:02,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-08 19:14:02,558 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:14:02,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:02,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1483002414, now seen corresponding path program 1 times [2024-11-08 19:14:02,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:02,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574546783] [2024-11-08 19:14:02,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:02,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:02,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:02,638 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 19:14:02,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:14:02,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574546783] [2024-11-08 19:14:02,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574546783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:14:02,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:14:02,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:14:02,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563221221] [2024-11-08 19:14:02,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:02,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:14:02,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:14:02,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:14:02,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:14:02,641 INFO L87 Difference]: Start difference. First operand 13460 states and 17764 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 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 19:14:02,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:14:02,750 INFO L93 Difference]: Finished difference Result 32928 states and 43378 transitions. [2024-11-08 19:14:02,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:14:02,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2024-11-08 19:14:02,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:14:02,777 INFO L225 Difference]: With dead ends: 32928 [2024-11-08 19:14:02,778 INFO L226 Difference]: Without dead ends: 19962 [2024-11-08 19:14:02,789 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 19:14:02,790 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 132 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:14:02,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 318 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:14:02,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19962 states. [2024-11-08 19:14:03,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19962 to 19748. [2024-11-08 19:14:03,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19748 states, 19747 states have (on average 1.293563579277865) internal successors, (25544), 19747 states have internal predecessors, (25544), 0 states have call successors, (0), 0 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 19:14:03,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19748 states to 19748 states and 25544 transitions. [2024-11-08 19:14:03,303 INFO L78 Accepts]: Start accepts. Automaton has 19748 states and 25544 transitions. Word has length 75 [2024-11-08 19:14:03,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:14:03,304 INFO L471 AbstractCegarLoop]: Abstraction has 19748 states and 25544 transitions. [2024-11-08 19:14:03,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 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 19:14:03,304 INFO L276 IsEmpty]: Start isEmpty. Operand 19748 states and 25544 transitions. [2024-11-08 19:14:03,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 19:14:03,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:14:03,312 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 19:14:03,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-08 19:14:03,312 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:14:03,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:03,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1263057428, now seen corresponding path program 1 times [2024-11-08 19:14:03,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:03,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834143255] [2024-11-08 19:14:03,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:03,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:03,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:03,739 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:14:03,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:14:03,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834143255] [2024-11-08 19:14:03,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834143255] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:14:03,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1342954643] [2024-11-08 19:14:03,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:03,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:14:03,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:14:03,743 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:14:03,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 19:14:03,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:03,981 INFO L255 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 19:14:03,990 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:14:05,943 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:14:05,943 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:14:08,051 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:14:08,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1342954643] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:14:08,052 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:14:08,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 14] total 31 [2024-11-08 19:14:08,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586453657] [2024-11-08 19:14:08,053 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:14:08,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-08 19:14:08,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:14:08,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-08 19:14:08,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=837, Unknown=0, NotChecked=0, Total=992 [2024-11-08 19:14:08,055 INFO L87 Difference]: Start difference. First operand 19748 states and 25544 transitions. Second operand has 32 states, 32 states have (on average 7.375) internal successors, (236), 31 states have internal predecessors, (236), 0 states have call successors, (0), 0 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 19:14:22,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:14:22,957 INFO L93 Difference]: Finished difference Result 133858 states and 170775 transitions. [2024-11-08 19:14:22,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2024-11-08 19:14:22,958 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 7.375) internal successors, (236), 31 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-08 19:14:22,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:14:23,097 INFO L225 Difference]: With dead ends: 133858 [2024-11-08 19:14:23,097 INFO L226 Difference]: Without dead ends: 123124 [2024-11-08 19:14:23,123 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7561 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=4235, Invalid=18115, Unknown=0, NotChecked=0, Total=22350 [2024-11-08 19:14:23,123 INFO L432 NwaCegarLoop]: 352 mSDtfsCounter, 5115 mSDsluCounter, 5685 mSDsCounter, 0 mSdLazyCounter, 5761 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5115 SdHoareTripleChecker+Valid, 6037 SdHoareTripleChecker+Invalid, 5855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 5761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-08 19:14:23,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5115 Valid, 6037 Invalid, 5855 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [94 Valid, 5761 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-08 19:14:23,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123124 states. [2024-11-08 19:14:24,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123124 to 20398. [2024-11-08 19:14:24,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20398 states, 20397 states have (on average 1.291856645585135) internal successors, (26350), 20397 states have internal predecessors, (26350), 0 states have call successors, (0), 0 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 19:14:24,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20398 states to 20398 states and 26350 transitions. [2024-11-08 19:14:24,220 INFO L78 Accepts]: Start accepts. Automaton has 20398 states and 26350 transitions. Word has length 94 [2024-11-08 19:14:24,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:14:24,221 INFO L471 AbstractCegarLoop]: Abstraction has 20398 states and 26350 transitions. [2024-11-08 19:14:24,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 7.375) internal successors, (236), 31 states have internal predecessors, (236), 0 states have call successors, (0), 0 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 19:14:24,221 INFO L276 IsEmpty]: Start isEmpty. Operand 20398 states and 26350 transitions. [2024-11-08 19:14:24,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 19:14:24,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:14:24,229 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 19:14:24,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 19:14:24,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-08 19:14:24,431 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:14:24,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:24,432 INFO L85 PathProgramCache]: Analyzing trace with hash 225914628, now seen corresponding path program 1 times [2024-11-08 19:14:24,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:24,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600268076] [2024-11-08 19:14:24,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:24,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:24,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:24,916 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:14:24,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:14:24,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600268076] [2024-11-08 19:14:24,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600268076] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:14:24,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761909214] [2024-11-08 19:14:24,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:24,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:14:24,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:14:24,920 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:14:24,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 19:14:25,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:25,132 INFO L255 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 19:14:25,135 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:14:26,629 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:14:26,630 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:14:28,260 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:14:28,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761909214] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:14:28,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:14:28,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 13] total 29 [2024-11-08 19:14:28,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806808410] [2024-11-08 19:14:28,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:14:28,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-08 19:14:28,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:14:28,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-08 19:14:28,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=756, Unknown=0, NotChecked=0, Total=870 [2024-11-08 19:14:28,264 INFO L87 Difference]: Start difference. First operand 20398 states and 26350 transitions. Second operand has 30 states, 30 states have (on average 8.133333333333333) internal successors, (244), 29 states have internal predecessors, (244), 0 states have call successors, (0), 0 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 19:14:48,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:14:48,443 INFO L93 Difference]: Finished difference Result 154065 states and 196001 transitions. [2024-11-08 19:14:48,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2024-11-08 19:14:48,444 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 8.133333333333333) internal successors, (244), 29 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-08 19:14:48,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:14:48,625 INFO L225 Difference]: With dead ends: 154065 [2024-11-08 19:14:48,625 INFO L226 Difference]: Without dead ends: 143475 [2024-11-08 19:14:48,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 227 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20968 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=7450, Invalid=44762, Unknown=0, NotChecked=0, Total=52212 [2024-11-08 19:14:48,657 INFO L432 NwaCegarLoop]: 332 mSDtfsCounter, 9468 mSDsluCounter, 5658 mSDsCounter, 0 mSdLazyCounter, 5689 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9468 SdHoareTripleChecker+Valid, 5990 SdHoareTripleChecker+Invalid, 5844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 5689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:14:48,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9468 Valid, 5990 Invalid, 5844 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [155 Valid, 5689 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-08 19:14:48,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143475 states. [2024-11-08 19:14:49,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143475 to 43404. [2024-11-08 19:14:49,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43404 states, 43403 states have (on average 1.291154989286455) internal successors, (56040), 43403 states have internal predecessors, (56040), 0 states have call successors, (0), 0 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 19:14:50,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43404 states to 43404 states and 56040 transitions. [2024-11-08 19:14:50,032 INFO L78 Accepts]: Start accepts. Automaton has 43404 states and 56040 transitions. Word has length 94 [2024-11-08 19:14:50,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:14:50,032 INFO L471 AbstractCegarLoop]: Abstraction has 43404 states and 56040 transitions. [2024-11-08 19:14:50,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 8.133333333333333) internal successors, (244), 29 states have internal predecessors, (244), 0 states have call successors, (0), 0 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 19:14:50,032 INFO L276 IsEmpty]: Start isEmpty. Operand 43404 states and 56040 transitions. [2024-11-08 19:14:50,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 19:14:50,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:14:50,040 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 19:14:50,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 19:14:50,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:14:50,241 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:14:50,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:50,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1360167634, now seen corresponding path program 1 times [2024-11-08 19:14:50,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:50,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070717101] [2024-11-08 19:14:50,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:50,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:50,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:50,757 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:14:50,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:14:50,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070717101] [2024-11-08 19:14:50,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070717101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:14:50,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:14:50,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:14:50,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784778685] [2024-11-08 19:14:50,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:50,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:14:50,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:14:50,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:14:50,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:14:50,762 INFO L87 Difference]: Start difference. First operand 43404 states and 56040 transitions. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:14:51,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:14:51,824 INFO L93 Difference]: Finished difference Result 91455 states and 117714 transitions. [2024-11-08 19:14:51,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 19:14:51,825 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-08 19:14:51,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:14:51,905 INFO L225 Difference]: With dead ends: 91455 [2024-11-08 19:14:51,905 INFO L226 Difference]: Without dead ends: 73476 [2024-11-08 19:14:51,927 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2024-11-08 19:14:51,928 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 1173 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 802 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 19:14:51,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1173 Valid, 802 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 19:14:51,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73476 states. [2024-11-08 19:14:53,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73476 to 64177. [2024-11-08 19:14:53,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64177 states, 64176 states have (on average 1.2908563949139866) internal successors, (82842), 64176 states have internal predecessors, (82842), 0 states have call successors, (0), 0 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 19:14:53,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64177 states to 64177 states and 82842 transitions. [2024-11-08 19:14:53,413 INFO L78 Accepts]: Start accepts. Automaton has 64177 states and 82842 transitions. Word has length 94 [2024-11-08 19:14:53,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:14:53,413 INFO L471 AbstractCegarLoop]: Abstraction has 64177 states and 82842 transitions. [2024-11-08 19:14:53,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:14:53,414 INFO L276 IsEmpty]: Start isEmpty. Operand 64177 states and 82842 transitions. [2024-11-08 19:14:53,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 19:14:53,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:14:53,422 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 19:14:53,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-08 19:14:53,423 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:14:53,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:53,424 INFO L85 PathProgramCache]: Analyzing trace with hash 284791237, now seen corresponding path program 1 times [2024-11-08 19:14:53,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:53,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111852744] [2024-11-08 19:14:53,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:53,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:53,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:53,503 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 19:14:53,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:14:53,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111852744] [2024-11-08 19:14:53,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111852744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:14:53,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:14:53,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:14:53,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66378365] [2024-11-08 19:14:53,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:53,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:14:53,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:14:53,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:14:53,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:14:53,506 INFO L87 Difference]: Start difference. First operand 64177 states and 82842 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 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 19:14:54,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:14:54,190 INFO L93 Difference]: Finished difference Result 125873 states and 162815 transitions. [2024-11-08 19:14:54,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:14:54,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-08 19:14:54,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:14:54,451 INFO L225 Difference]: With dead ends: 125873 [2024-11-08 19:14:54,452 INFO L226 Difference]: Without dead ends: 63533 [2024-11-08 19:14:54,509 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 19:14:54,513 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 159 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:14:54,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 202 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:14:54,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63533 states. [2024-11-08 19:14:55,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63533 to 63533. [2024-11-08 19:14:55,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63533 states, 63532 states have (on average 1.2785525404520557) internal successors, (81229), 63532 states have internal predecessors, (81229), 0 states have call successors, (0), 0 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 19:14:55,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63533 states to 63533 states and 81229 transitions. [2024-11-08 19:14:55,591 INFO L78 Accepts]: Start accepts. Automaton has 63533 states and 81229 transitions. Word has length 95 [2024-11-08 19:14:55,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:14:55,591 INFO L471 AbstractCegarLoop]: Abstraction has 63533 states and 81229 transitions. [2024-11-08 19:14:55,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 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 19:14:55,591 INFO L276 IsEmpty]: Start isEmpty. Operand 63533 states and 81229 transitions. [2024-11-08 19:14:55,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 19:14:55,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:14:55,602 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 19:14:55,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-08 19:14:55,603 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:14:55,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:55,603 INFO L85 PathProgramCache]: Analyzing trace with hash 2024837326, now seen corresponding path program 1 times [2024-11-08 19:14:55,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:55,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135804978] [2024-11-08 19:14:55,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:55,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:55,826 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:14:55,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:14:55,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135804978] [2024-11-08 19:14:55,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135804978] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:14:55,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377571634] [2024-11-08 19:14:55,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:55,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:14:55,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:14:55,830 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:14:55,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 19:14:56,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:56,068 INFO L255 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 19:14:56,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:14:56,252 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:14:56,252 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:14:56,518 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:14:56,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [377571634] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:14:56,518 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:14:56,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-08 19:14:56,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892147093] [2024-11-08 19:14:56,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:14:56,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:14:56,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:14:56,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:14:56,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:14:56,520 INFO L87 Difference]: Start difference. First operand 63533 states and 81229 transitions. Second operand has 8 states, 8 states have (on average 23.0) internal successors, (184), 8 states have internal predecessors, (184), 0 states have call successors, (0), 0 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 19:14:57,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:14:57,328 INFO L93 Difference]: Finished difference Result 180965 states and 229915 transitions. [2024-11-08 19:14:57,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:14:57,329 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.0) internal successors, (184), 8 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-08 19:14:57,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:14:57,513 INFO L225 Difference]: With dead ends: 180965 [2024-11-08 19:14:57,513 INFO L226 Difference]: Without dead ends: 119466 [2024-11-08 19:14:57,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 186 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:14:57,553 INFO L432 NwaCegarLoop]: 266 mSDtfsCounter, 438 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:14:57,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 966 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:14:57,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119466 states. [2024-11-08 19:14:58,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119466 to 93371. [2024-11-08 19:14:58,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93371 states, 93370 states have (on average 1.2727535611009961) internal successors, (118837), 93370 states have internal predecessors, (118837), 0 states have call successors, (0), 0 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 19:14:59,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93371 states to 93371 states and 118837 transitions. [2024-11-08 19:14:59,082 INFO L78 Accepts]: Start accepts. Automaton has 93371 states and 118837 transitions. Word has length 95 [2024-11-08 19:14:59,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:14:59,083 INFO L471 AbstractCegarLoop]: Abstraction has 93371 states and 118837 transitions. [2024-11-08 19:14:59,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.0) internal successors, (184), 8 states have internal predecessors, (184), 0 states have call successors, (0), 0 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 19:14:59,083 INFO L276 IsEmpty]: Start isEmpty. Operand 93371 states and 118837 transitions. [2024-11-08 19:14:59,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 19:14:59,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:14:59,098 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 19:14:59,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 19:14:59,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-08 19:14:59,299 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:14:59,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:59,300 INFO L85 PathProgramCache]: Analyzing trace with hash -871075362, now seen corresponding path program 1 times [2024-11-08 19:14:59,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:59,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427231772] [2024-11-08 19:14:59,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:59,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:59,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:59,411 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 19:14:59,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:14:59,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427231772] [2024-11-08 19:14:59,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427231772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:14:59,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:14:59,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:14:59,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299634222] [2024-11-08 19:14:59,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:59,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:14:59,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:14:59,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:14:59,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:14:59,414 INFO L87 Difference]: Start difference. First operand 93371 states and 118837 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:15:00,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:15:00,222 INFO L93 Difference]: Finished difference Result 173529 states and 221284 transitions. [2024-11-08 19:15:00,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:15:00,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2024-11-08 19:15:00,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:15:00,307 INFO L225 Difference]: With dead ends: 173529 [2024-11-08 19:15:00,307 INFO L226 Difference]: Without dead ends: 81437 [2024-11-08 19:15:00,338 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 19:15:00,339 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 152 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:15:00,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 177 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:15:00,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81437 states. [2024-11-08 19:15:01,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81437 to 79646. [2024-11-08 19:15:01,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79646 states, 79645 states have (on average 1.2567267248414842) internal successors, (100092), 79645 states have internal predecessors, (100092), 0 states have call successors, (0), 0 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 19:15:01,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79646 states to 79646 states and 100092 transitions. [2024-11-08 19:15:01,731 INFO L78 Accepts]: Start accepts. Automaton has 79646 states and 100092 transitions. Word has length 102 [2024-11-08 19:15:01,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:15:01,732 INFO L471 AbstractCegarLoop]: Abstraction has 79646 states and 100092 transitions. [2024-11-08 19:15:01,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:15:01,732 INFO L276 IsEmpty]: Start isEmpty. Operand 79646 states and 100092 transitions. [2024-11-08 19:15:01,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-08 19:15:01,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:15:01,752 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 19:15:01,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-08 19:15:01,753 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:15:01,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:15:01,754 INFO L85 PathProgramCache]: Analyzing trace with hash 329626231, now seen corresponding path program 1 times [2024-11-08 19:15:01,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:15:01,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584480299] [2024-11-08 19:15:01,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:15:01,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:15:01,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:15:02,289 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:15:02,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:15:02,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584480299] [2024-11-08 19:15:02,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584480299] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:15:02,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174304033] [2024-11-08 19:15:02,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:15:02,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:15:02,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:15:02,296 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:15:02,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 19:15:02,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:15:02,516 INFO L255 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 19:15:02,518 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:15:02,877 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:15:02,877 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:15:03,071 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:15:03,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174304033] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:15:03,072 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:15:03,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-11-08 19:15:03,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483179791] [2024-11-08 19:15:03,072 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:15:03,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 19:15:03,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:15:03,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 19:15:03,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-08 19:15:03,074 INFO L87 Difference]: Start difference. First operand 79646 states and 100092 transitions. Second operand has 14 states, 14 states have (on average 19.642857142857142) internal successors, (275), 14 states have internal predecessors, (275), 0 states have call successors, (0), 0 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 19:15:03,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:15:03,890 INFO L93 Difference]: Finished difference Result 163383 states and 204266 transitions. [2024-11-08 19:15:03,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 19:15:03,891 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 19.642857142857142) internal successors, (275), 14 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-08 19:15:03,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:15:04,025 INFO L225 Difference]: With dead ends: 163383 [2024-11-08 19:15:04,025 INFO L226 Difference]: Without dead ends: 100827 [2024-11-08 19:15:04,064 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 199 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-11-08 19:15:04,064 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 1483 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:15:04,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1483 Valid, 660 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:15:04,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100827 states. [2024-11-08 19:15:05,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100827 to 84490. [2024-11-08 19:15:05,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84490 states, 84489 states have (on average 1.250103563777533) internal successors, (105620), 84489 states have internal predecessors, (105620), 0 states have call successors, (0), 0 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 19:15:05,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84490 states to 84490 states and 105620 transitions. [2024-11-08 19:15:05,776 INFO L78 Accepts]: Start accepts. Automaton has 84490 states and 105620 transitions. Word has length 103 [2024-11-08 19:15:05,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:15:05,776 INFO L471 AbstractCegarLoop]: Abstraction has 84490 states and 105620 transitions. [2024-11-08 19:15:05,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 19.642857142857142) internal successors, (275), 14 states have internal predecessors, (275), 0 states have call successors, (0), 0 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 19:15:05,776 INFO L276 IsEmpty]: Start isEmpty. Operand 84490 states and 105620 transitions. [2024-11-08 19:15:05,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 19:15:05,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:15:05,787 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 19:15:05,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 19:15:05,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-08 19:15:05,988 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:15:05,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:15:05,988 INFO L85 PathProgramCache]: Analyzing trace with hash 445467963, now seen corresponding path program 1 times [2024-11-08 19:15:05,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:15:05,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259061369] [2024-11-08 19:15:05,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:15:05,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:15:06,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:15:06,117 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:15:06,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:15:06,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259061369] [2024-11-08 19:15:06,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259061369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:15:06,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:15:06,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:15:06,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278351352] [2024-11-08 19:15:06,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:15:06,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:15:06,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:15:06,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:15:06,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:15:06,122 INFO L87 Difference]: Start difference. First operand 84490 states and 105620 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:15:06,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:15:06,761 INFO L93 Difference]: Finished difference Result 165160 states and 206333 transitions. [2024-11-08 19:15:06,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:15:06,762 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-08 19:15:06,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:15:06,855 INFO L225 Difference]: With dead ends: 165160 [2024-11-08 19:15:06,855 INFO L226 Difference]: Without dead ends: 81829 [2024-11-08 19:15:06,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:15:06,894 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 355 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:15:06,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 360 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:15:06,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81829 states. [2024-11-08 19:15:08,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81829 to 77081. [2024-11-08 19:15:08,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77081 states, 77080 states have (on average 1.2280098598858329) internal successors, (94655), 77080 states have internal predecessors, (94655), 0 states have call successors, (0), 0 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 19:15:08,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77081 states to 77081 states and 94655 transitions. [2024-11-08 19:15:08,376 INFO L78 Accepts]: Start accepts. Automaton has 77081 states and 94655 transitions. Word has length 104 [2024-11-08 19:15:08,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:15:08,376 INFO L471 AbstractCegarLoop]: Abstraction has 77081 states and 94655 transitions. [2024-11-08 19:15:08,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:15:08,377 INFO L276 IsEmpty]: Start isEmpty. Operand 77081 states and 94655 transitions. [2024-11-08 19:15:08,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 19:15:08,395 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:15:08,395 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 19:15:08,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-08 19:15:08,396 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:15:08,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:15:08,396 INFO L85 PathProgramCache]: Analyzing trace with hash -2047133199, now seen corresponding path program 1 times [2024-11-08 19:15:08,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:15:08,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021113590] [2024-11-08 19:15:08,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:15:08,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:15:08,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:15:08,581 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:15:08,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:15:08,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021113590] [2024-11-08 19:15:08,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021113590] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:15:08,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426103265] [2024-11-08 19:15:08,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:15:08,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:15:08,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:15:08,585 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:15:08,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 19:15:08,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:15:08,864 INFO L255 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 19:15:08,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:15:09,397 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:15:09,397 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:15:09,681 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:15:09,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426103265] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:15:09,681 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:15:09,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-11-08 19:15:09,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67031022] [2024-11-08 19:15:09,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:15:09,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 19:15:09,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:15:09,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 19:15:09,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-08 19:15:09,685 INFO L87 Difference]: Start difference. First operand 77081 states and 94655 transitions. Second operand has 14 states, 14 states have (on average 20.428571428571427) internal successors, (286), 14 states have internal predecessors, (286), 0 states have call successors, (0), 0 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 19:15:11,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:15:11,084 INFO L93 Difference]: Finished difference Result 173057 states and 211454 transitions. [2024-11-08 19:15:11,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 19:15:11,085 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 20.428571428571427) internal successors, (286), 14 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-08 19:15:11,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:15:11,202 INFO L225 Difference]: With dead ends: 173057 [2024-11-08 19:15:11,203 INFO L226 Difference]: Without dead ends: 97577 [2024-11-08 19:15:11,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 201 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-11-08 19:15:11,244 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 1236 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1236 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 19:15:11,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1236 Valid, 804 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 19:15:11,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97577 states. [2024-11-08 19:15:12,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97577 to 84578. [2024-11-08 19:15:12,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84578 states, 84577 states have (on average 1.2234058904903224) internal successors, (103472), 84577 states have internal predecessors, (103472), 0 states have call successors, (0), 0 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 19:15:12,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84578 states to 84578 states and 103472 transitions. [2024-11-08 19:15:12,607 INFO L78 Accepts]: Start accepts. Automaton has 84578 states and 103472 transitions. Word has length 104 [2024-11-08 19:15:12,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:15:12,607 INFO L471 AbstractCegarLoop]: Abstraction has 84578 states and 103472 transitions. [2024-11-08 19:15:12,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 20.428571428571427) internal successors, (286), 14 states have internal predecessors, (286), 0 states have call successors, (0), 0 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 19:15:12,608 INFO L276 IsEmpty]: Start isEmpty. Operand 84578 states and 103472 transitions. [2024-11-08 19:15:12,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 19:15:12,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:15:12,627 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 19:15:12,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-08 19:15:12,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-08 19:15:12,828 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:15:12,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:15:12,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1136486780, now seen corresponding path program 1 times [2024-11-08 19:15:12,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:15:12,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278072259] [2024-11-08 19:15:12,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:15:12,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:15:12,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:15:12,918 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:15:12,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:15:12,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278072259] [2024-11-08 19:15:12,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278072259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:15:12,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:15:12,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:15:12,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002496577] [2024-11-08 19:15:12,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:15:12,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:15:12,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:15:12,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:15:12,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:15:12,920 INFO L87 Difference]: Start difference. First operand 84578 states and 103472 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:15:13,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:15:13,327 INFO L93 Difference]: Finished difference Result 157569 states and 192787 transitions. [2024-11-08 19:15:13,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:15:13,328 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-11-08 19:15:13,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:15:14,274 INFO L225 Difference]: With dead ends: 157569 [2024-11-08 19:15:14,274 INFO L226 Difference]: Without dead ends: 120091 [2024-11-08 19:15:14,368 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 19:15:14,368 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 93 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:15:14,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 428 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:15:14,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120091 states. [2024-11-08 19:15:15,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120091 to 83742. [2024-11-08 19:15:15,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83742 states, 83741 states have (on average 1.2152231284555952) internal successors, (101764), 83741 states have internal predecessors, (101764), 0 states have call successors, (0), 0 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 19:15:15,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83742 states to 83742 states and 101764 transitions. [2024-11-08 19:15:15,946 INFO L78 Accepts]: Start accepts. Automaton has 83742 states and 101764 transitions. Word has length 106 [2024-11-08 19:15:15,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:15:15,946 INFO L471 AbstractCegarLoop]: Abstraction has 83742 states and 101764 transitions. [2024-11-08 19:15:15,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:15:15,947 INFO L276 IsEmpty]: Start isEmpty. Operand 83742 states and 101764 transitions. [2024-11-08 19:15:15,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-08 19:15:15,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:15:15,965 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 19:15:15,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-08 19:15:15,965 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:15:15,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:15:15,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1155971345, now seen corresponding path program 1 times [2024-11-08 19:15:15,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:15:15,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953131265] [2024-11-08 19:15:15,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:15:15,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:15:16,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:15:16,129 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 19:15:16,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:15:16,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953131265] [2024-11-08 19:15:16,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953131265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:15:16,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:15:16,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:15:16,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816145454] [2024-11-08 19:15:16,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:15:16,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:15:16,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:15:16,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:15:16,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:15:16,134 INFO L87 Difference]: Start difference. First operand 83742 states and 101764 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:15:16,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:15:16,753 INFO L93 Difference]: Finished difference Result 149450 states and 180887 transitions. [2024-11-08 19:15:16,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:15:16,754 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2024-11-08 19:15:16,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:15:16,922 INFO L225 Difference]: With dead ends: 149450 [2024-11-08 19:15:16,922 INFO L226 Difference]: Without dead ends: 120205 [2024-11-08 19:15:16,962 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 19:15:16,962 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 116 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:15:16,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 446 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:15:17,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120205 states. [2024-11-08 19:15:18,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120205 to 96463. [2024-11-08 19:15:18,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96463 states, 96462 states have (on average 1.215597852003898) internal successors, (117259), 96462 states have internal predecessors, (117259), 0 states have call successors, (0), 0 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 19:15:18,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96463 states to 96463 states and 117259 transitions. [2024-11-08 19:15:18,996 INFO L78 Accepts]: Start accepts. Automaton has 96463 states and 117259 transitions. Word has length 107 [2024-11-08 19:15:18,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:15:18,996 INFO L471 AbstractCegarLoop]: Abstraction has 96463 states and 117259 transitions. [2024-11-08 19:15:18,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:15:18,996 INFO L276 IsEmpty]: Start isEmpty. Operand 96463 states and 117259 transitions. [2024-11-08 19:15:19,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-08 19:15:19,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:15:19,008 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 19:15:19,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-08 19:15:19,008 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:15:19,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:15:19,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1792533260, now seen corresponding path program 1 times [2024-11-08 19:15:19,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:15:19,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802304169] [2024-11-08 19:15:19,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:15:19,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:15:19,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:15:20,954 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:15:20,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:15:20,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802304169] [2024-11-08 19:15:20,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802304169] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:15:20,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782650374] [2024-11-08 19:15:20,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:15:20,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:15:20,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:15:20,958 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:15:20,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 19:15:21,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:15:21,193 INFO L255 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-08 19:15:21,196 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:15:22,741 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:15:22,741 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:15:24,298 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:15:24,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782650374] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:15:24,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:15:24,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 42 [2024-11-08 19:15:24,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217781473] [2024-11-08 19:15:24,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:15:24,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-08 19:15:24,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:15:24,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-08 19:15:24,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1592, Unknown=0, NotChecked=0, Total=1722 [2024-11-08 19:15:24,301 INFO L87 Difference]: Start difference. First operand 96463 states and 117259 transitions. Second operand has 42 states, 42 states have (on average 7.071428571428571) internal successors, (297), 42 states have internal predecessors, (297), 0 states have call successors, (0), 0 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 19:15:49,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:15:49,938 INFO L93 Difference]: Finished difference Result 278374 states and 335577 transitions. [2024-11-08 19:15:49,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 176 states. [2024-11-08 19:15:49,939 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 7.071428571428571) internal successors, (297), 42 states have internal predecessors, (297), 0 states have call successors, (0), 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 107 [2024-11-08 19:15:49,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:15:50,239 INFO L225 Difference]: With dead ends: 278374 [2024-11-08 19:15:50,240 INFO L226 Difference]: Without dead ends: 255559 [2024-11-08 19:15:50,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16127 ImplicationChecksByTransitivity, 19.3s TimeCoverageRelationStatistics Valid=6404, Invalid=40036, Unknown=0, NotChecked=0, Total=46440 [2024-11-08 19:15:50,295 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 6895 mSDsluCounter, 6722 mSDsCounter, 0 mSdLazyCounter, 7455 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6895 SdHoareTripleChecker+Valid, 6950 SdHoareTripleChecker+Invalid, 7598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 7455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-11-08 19:15:50,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6895 Valid, 6950 Invalid, 7598 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [143 Valid, 7455 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2024-11-08 19:15:50,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255559 states. [2024-11-08 19:15:52,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255559 to 96507. [2024-11-08 19:15:52,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96507 states, 96506 states have (on average 1.2156238990321846) internal successors, (117315), 96506 states have internal predecessors, (117315), 0 states have call successors, (0), 0 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 19:15:52,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96507 states to 96507 states and 117315 transitions. [2024-11-08 19:15:52,646 INFO L78 Accepts]: Start accepts. Automaton has 96507 states and 117315 transitions. Word has length 107 [2024-11-08 19:15:52,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:15:52,646 INFO L471 AbstractCegarLoop]: Abstraction has 96507 states and 117315 transitions. [2024-11-08 19:15:52,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 7.071428571428571) internal successors, (297), 42 states have internal predecessors, (297), 0 states have call successors, (0), 0 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 19:15:52,647 INFO L276 IsEmpty]: Start isEmpty. Operand 96507 states and 117315 transitions. [2024-11-08 19:15:52,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-08 19:15:52,661 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:15:52,662 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 19:15:52,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-08 19:15:52,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-11-08 19:15:52,864 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:15:52,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:15:52,864 INFO L85 PathProgramCache]: Analyzing trace with hash -340745030, now seen corresponding path program 1 times [2024-11-08 19:15:52,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:15:52,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419797991] [2024-11-08 19:15:52,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:15:52,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:15:52,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:15:52,972 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 19:15:52,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:15:52,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419797991] [2024-11-08 19:15:52,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419797991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:15:52,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:15:52,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:15:52,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660037418] [2024-11-08 19:15:52,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:15:52,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:15:52,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:15:52,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:15:52,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:15:52,975 INFO L87 Difference]: Start difference. First operand 96507 states and 117315 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:15:53,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:15:53,575 INFO L93 Difference]: Finished difference Result 159061 states and 193264 transitions. [2024-11-08 19:15:53,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:15:53,576 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2024-11-08 19:15:53,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:15:53,784 INFO L225 Difference]: With dead ends: 159061 [2024-11-08 19:15:53,784 INFO L226 Difference]: Without dead ends: 129387 [2024-11-08 19:15:53,828 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 19:15:53,830 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 130 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:15:53,831 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 436 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:15:53,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129387 states. [2024-11-08 19:15:55,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129387 to 95463. [2024-11-08 19:15:55,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95463 states, 95462 states have (on average 1.2164421445182376) internal successors, (116124), 95462 states have internal predecessors, (116124), 0 states have call successors, (0), 0 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 19:15:55,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95463 states to 95463 states and 116124 transitions. [2024-11-08 19:15:55,542 INFO L78 Accepts]: Start accepts. Automaton has 95463 states and 116124 transitions. Word has length 107 [2024-11-08 19:15:55,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:15:55,543 INFO L471 AbstractCegarLoop]: Abstraction has 95463 states and 116124 transitions. [2024-11-08 19:15:55,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:15:55,543 INFO L276 IsEmpty]: Start isEmpty. Operand 95463 states and 116124 transitions. [2024-11-08 19:15:55,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-08 19:15:55,552 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:15:55,552 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 19:15:55,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-08 19:15:55,553 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:15:55,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:15:55,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1318476383, now seen corresponding path program 1 times [2024-11-08 19:15:55,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:15:55,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071093513] [2024-11-08 19:15:55,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:15:55,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:15:55,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:15:57,378 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:15:57,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:15:57,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071093513] [2024-11-08 19:15:57,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071093513] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:15:57,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224277395] [2024-11-08 19:15:57,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:15:57,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:15:57,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:15:57,381 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:15:57,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6353ef4e-edd7-4f51-bc19-d77e9d4f2baf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 19:15:57,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:15:57,619 INFO L255 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 19:15:57,622 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:15:58,950 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:15:58,950 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:15:58,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224277395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:15:58,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:15:58,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [21] total 33 [2024-11-08 19:15:58,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511970619] [2024-11-08 19:15:58,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:15:58,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 19:15:58,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:15:58,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 19:15:58,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=961, Unknown=0, NotChecked=0, Total=1056 [2024-11-08 19:15:58,952 INFO L87 Difference]: Start difference. First operand 95463 states and 116124 transitions. Second operand has 14 states, 14 states have (on average 7.642857142857143) internal successors, (107), 14 states have internal predecessors, (107), 0 states have call successors, (0), 0 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 19:15:59,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:15:59,989 INFO L93 Difference]: Finished difference Result 122044 states and 148512 transitions. [2024-11-08 19:15:59,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-08 19:15:59,990 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.642857142857143) internal successors, (107), 14 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2024-11-08 19:15:59,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:00,104 INFO L225 Difference]: With dead ends: 122044 [2024-11-08 19:16:00,104 INFO L226 Difference]: Without dead ends: 104319