./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label04.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_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/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_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/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_9ce19255-d16c-48d4-bb37-5a573fa93da1/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 70f2952113e7c5d0a919874ec9c1eb9d51aba80929eec498cecad1707afba9bd --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:31:08,366 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:31:08,468 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 17:31:08,476 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:31:08,479 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:31:08,521 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:31:08,521 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:31:08,522 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:31:08,523 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:31:08,523 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:31:08,525 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:31:08,525 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:31:08,526 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:31:08,529 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:31:08,530 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:31:08,530 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:31:08,530 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:31:08,531 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:31:08,531 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:31:08,532 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:31:08,532 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:31:08,537 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:31:08,537 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:31:08,537 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:31:08,538 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:31:08,538 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:31:08,538 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:31:08,538 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:31:08,539 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:31:08,539 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:31:08,539 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:31:08,539 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:31:08,540 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:31:08,540 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:31:08,542 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:31:08,542 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:31:08,543 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:31:08,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:31:08,544 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:31:08,545 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:31:08,545 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:31:08,545 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:31:08,545 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_9ce19255-d16c-48d4-bb37-5a573fa93da1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70f2952113e7c5d0a919874ec9c1eb9d51aba80929eec498cecad1707afba9bd [2024-11-08 17:31:08,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:31:08,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:31:08,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:31:08,925 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:31:08,926 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:31:08,927 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/combinations/pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label04.c Unable to find full path for "g++" [2024-11-08 17:31:10,990 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:31:11,536 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:31:11,538 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/sv-benchmarks/c/combinations/pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label04.c [2024-11-08 17:31:11,579 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/data/fa585e900/27a6a9bb3eb64c5c8a55ae936a814fbf/FLAG3d82e7754 [2024-11-08 17:31:12,080 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/data/fa585e900/27a6a9bb3eb64c5c8a55ae936a814fbf [2024-11-08 17:31:12,083 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:31:12,084 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:31:12,086 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:31:12,086 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:31:12,096 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:31:12,097 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:31:12" (1/1) ... [2024-11-08 17:31:12,100 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c327e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:31:12, skipping insertion in model container [2024-11-08 17:31:12,101 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:31:12" (1/1) ... [2024-11-08 17:31:12,237 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:31:12,608 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_9ce19255-d16c-48d4-bb37-5a573fa93da1/sv-benchmarks/c/combinations/pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label04.c[6354,6367] [2024-11-08 17:31:12,703 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_9ce19255-d16c-48d4-bb37-5a573fa93da1/sv-benchmarks/c/combinations/pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label04.c[13415,13428] [2024-11-08 17:31:13,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:31:13,701 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:31:13,748 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_9ce19255-d16c-48d4-bb37-5a573fa93da1/sv-benchmarks/c/combinations/pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label04.c[6354,6367] [2024-11-08 17:31:13,773 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_9ce19255-d16c-48d4-bb37-5a573fa93da1/sv-benchmarks/c/combinations/pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label04.c[13415,13428] [2024-11-08 17:31:14,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:31:14,445 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:31:14,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:31:14 WrapperNode [2024-11-08 17:31:14,447 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:31:14,449 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:31:14,449 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:31:14,449 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:31:14,458 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:31:14" (1/1) ... [2024-11-08 17:31:14,527 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:31:14" (1/1) ... [2024-11-08 17:31:14,938 INFO L138 Inliner]: procedures = 33, calls = 19, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 4981 [2024-11-08 17:31:14,939 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:31:14,940 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:31:14,940 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:31:14,941 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:31:14,953 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:31:14" (1/1) ... [2024-11-08 17:31:14,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:31:14" (1/1) ... [2024-11-08 17:31:15,012 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:31:14" (1/1) ... [2024-11-08 17:31:15,251 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 17:31:15,251 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:31:14" (1/1) ... [2024-11-08 17:31:15,255 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:31:14" (1/1) ... [2024-11-08 17:31:15,487 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:31:14" (1/1) ... [2024-11-08 17:31:15,510 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:31:14" (1/1) ... [2024-11-08 17:31:15,570 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:31:14" (1/1) ... [2024-11-08 17:31:15,640 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:31:14" (1/1) ... [2024-11-08 17:31:15,725 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:31:15,726 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:31:15,727 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:31:15,727 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:31:15,728 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:31:14" (1/1) ... [2024-11-08 17:31:15,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:31:15,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:31:15,792 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:31:15,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:31:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:31:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:31:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:31:15,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:31:15,931 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:31:15,933 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:31:21,808 INFO L? ?]: Removed 733 outVars from TransFormulas that were not future-live. [2024-11-08 17:31:21,808 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:31:21,872 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:31:21,872 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 17:31:21,873 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:31:21 BoogieIcfgContainer [2024-11-08 17:31:21,873 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:31:21,879 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:31:21,879 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:31:21,884 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:31:21,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:31:12" (1/3) ... [2024-11-08 17:31:21,886 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4be33b71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:31:21, skipping insertion in model container [2024-11-08 17:31:21,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:31:14" (2/3) ... [2024-11-08 17:31:21,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4be33b71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:31:21, skipping insertion in model container [2024-11-08 17:31:21,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:31:21" (3/3) ... [2024-11-08 17:31:21,889 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label04.c [2024-11-08 17:31:21,914 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:31:21,914 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 17:31:22,067 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:31:22,076 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;@4c5210d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:31:22,076 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 17:31:22,087 INFO L276 IsEmpty]: Start isEmpty. Operand has 873 states, 870 states have (on average 1.9057471264367816) internal successors, (1658), 872 states have internal predecessors, (1658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:22,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-08 17:31:22,097 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:31:22,098 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] [2024-11-08 17:31:22,099 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:31:22,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:31:22,106 INFO L85 PathProgramCache]: Analyzing trace with hash -62924208, now seen corresponding path program 1 times [2024-11-08 17:31:22,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:31:22,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947223515] [2024-11-08 17:31:22,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:22,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:31:22,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:22,432 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 17:31:22,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:31:22,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947223515] [2024-11-08 17:31:22,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947223515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:31:22,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:31:22,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:31:22,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099727894] [2024-11-08 17:31:22,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:31:22,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 17:31:22,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:31:22,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 17:31:22,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:31:22,468 INFO L87 Difference]: Start difference. First operand has 873 states, 870 states have (on average 1.9057471264367816) internal successors, (1658), 872 states have internal predecessors, (1658), 0 states have call successors, (0), 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 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:22,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:31:22,580 INFO L93 Difference]: Finished difference Result 1724 states and 3276 transitions. [2024-11-08 17:31:22,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 17:31:22,583 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2024-11-08 17:31:22,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:31:22,613 INFO L225 Difference]: With dead ends: 1724 [2024-11-08 17:31:22,613 INFO L226 Difference]: Without dead ends: 807 [2024-11-08 17:31:22,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:31:22,625 INFO L432 NwaCegarLoop]: 1593 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1593 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:31:22,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1593 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:31:22,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2024-11-08 17:31:22,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 807. [2024-11-08 17:31:22,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 807 states, 805 states have (on average 1.8944099378881987) internal successors, (1525), 806 states have internal predecessors, (1525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:22,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1525 transitions. [2024-11-08 17:31:22,738 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1525 transitions. Word has length 21 [2024-11-08 17:31:22,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:31:22,739 INFO L471 AbstractCegarLoop]: Abstraction has 807 states and 1525 transitions. [2024-11-08 17:31:22,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:22,739 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1525 transitions. [2024-11-08 17:31:22,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-08 17:31:22,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:31:22,741 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] [2024-11-08 17:31:22,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:31:22,742 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:31:22,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:31:22,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1342787886, now seen corresponding path program 1 times [2024-11-08 17:31:22,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:31:22,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991127330] [2024-11-08 17:31:22,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:22,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:31:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:23,083 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 17:31:23,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:31:23,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991127330] [2024-11-08 17:31:23,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991127330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:31:23,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:31:23,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:31:23,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894112416] [2024-11-08 17:31:23,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:31:23,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:31:23,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:31:23,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:31:23,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:31:23,090 INFO L87 Difference]: Start difference. First operand 807 states and 1525 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:23,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:31:23,255 INFO L93 Difference]: Finished difference Result 873 states and 1625 transitions. [2024-11-08 17:31:23,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:31:23,256 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2024-11-08 17:31:23,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:31:23,260 INFO L225 Difference]: With dead ends: 873 [2024-11-08 17:31:23,260 INFO L226 Difference]: Without dead ends: 838 [2024-11-08 17:31:23,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:31:23,262 INFO L432 NwaCegarLoop]: 1520 mSDtfsCounter, 47 mSDsluCounter, 4538 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 6058 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:31:23,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 6058 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:31:23,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2024-11-08 17:31:23,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 807. [2024-11-08 17:31:23,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 807 states, 805 states have (on average 1.8745341614906832) internal successors, (1509), 806 states have internal predecessors, (1509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:23,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1509 transitions. [2024-11-08 17:31:23,305 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1509 transitions. Word has length 21 [2024-11-08 17:31:23,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:31:23,306 INFO L471 AbstractCegarLoop]: Abstraction has 807 states and 1509 transitions. [2024-11-08 17:31:23,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:23,307 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1509 transitions. [2024-11-08 17:31:23,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-08 17:31:23,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:31:23,310 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] [2024-11-08 17:31:23,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:31:23,310 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:31:23,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:31:23,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1791292134, now seen corresponding path program 1 times [2024-11-08 17:31:23,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:31:23,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408587808] [2024-11-08 17:31:23,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:23,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:31:23,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:23,577 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 17:31:23,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:31:23,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408587808] [2024-11-08 17:31:23,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408587808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:31:23,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:31:23,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:31:23,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865835586] [2024-11-08 17:31:23,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:31:23,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:31:23,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:31:23,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:31:23,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:31:23,584 INFO L87 Difference]: Start difference. First operand 807 states and 1509 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:23,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:31:23,778 INFO L93 Difference]: Finished difference Result 993 states and 1797 transitions. [2024-11-08 17:31:23,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:31:23,780 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2024-11-08 17:31:23,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:31:23,785 INFO L225 Difference]: With dead ends: 993 [2024-11-08 17:31:23,785 INFO L226 Difference]: Without dead ends: 962 [2024-11-08 17:31:23,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:31:23,789 INFO L432 NwaCegarLoop]: 1505 mSDtfsCounter, 4593 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4593 SdHoareTripleChecker+Valid, 1875 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:31:23,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4593 Valid, 1875 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:31:23,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2024-11-08 17:31:23,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 836. [2024-11-08 17:31:23,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 834 states have (on average 1.8633093525179856) internal successors, (1554), 835 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:23,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1554 transitions. [2024-11-08 17:31:23,824 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1554 transitions. Word has length 36 [2024-11-08 17:31:23,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:31:23,829 INFO L471 AbstractCegarLoop]: Abstraction has 836 states and 1554 transitions. [2024-11-08 17:31:23,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:23,829 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1554 transitions. [2024-11-08 17:31:23,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-08 17:31:23,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:31:23,831 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] [2024-11-08 17:31:23,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:31:23,831 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:31:23,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:31:23,834 INFO L85 PathProgramCache]: Analyzing trace with hash -565556406, now seen corresponding path program 1 times [2024-11-08 17:31:23,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:31:23,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645872731] [2024-11-08 17:31:23,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:23,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:31:23,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:24,027 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 17:31:24,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:31:24,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645872731] [2024-11-08 17:31:24,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645872731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:31:24,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:31:24,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:31:24,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642388148] [2024-11-08 17:31:24,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:31:24,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:31:24,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:31:24,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:31:24,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:31:24,033 INFO L87 Difference]: Start difference. First operand 836 states and 1554 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:24,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:31:24,074 INFO L93 Difference]: Finished difference Result 945 states and 1721 transitions. [2024-11-08 17:31:24,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:31:24,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2024-11-08 17:31:24,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:31:24,079 INFO L225 Difference]: With dead ends: 945 [2024-11-08 17:31:24,079 INFO L226 Difference]: Without dead ends: 885 [2024-11-08 17:31:24,080 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 17:31:24,081 INFO L432 NwaCegarLoop]: 1507 mSDtfsCounter, 1466 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1466 SdHoareTripleChecker+Valid, 1550 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 17:31:24,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1466 Valid, 1550 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:31:24,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2024-11-08 17:31:24,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 883. [2024-11-08 17:31:24,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 881 states have (on average 1.8433598183881952) internal successors, (1624), 882 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:24,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1624 transitions. [2024-11-08 17:31:24,108 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1624 transitions. Word has length 38 [2024-11-08 17:31:24,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:31:24,109 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1624 transitions. [2024-11-08 17:31:24,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:24,109 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1624 transitions. [2024-11-08 17:31:24,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-08 17:31:24,111 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:31:24,111 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] [2024-11-08 17:31:24,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:31:24,112 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:31:24,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:31:24,113 INFO L85 PathProgramCache]: Analyzing trace with hash -499062894, now seen corresponding path program 1 times [2024-11-08 17:31:24,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:31:24,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370600796] [2024-11-08 17:31:24,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:24,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:31:24,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:24,361 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 17:31:24,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:31:24,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370600796] [2024-11-08 17:31:24,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370600796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:31:24,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:31:24,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:31:24,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11463158] [2024-11-08 17:31:24,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:31:24,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:31:24,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:31:24,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:31:24,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:31:24,367 INFO L87 Difference]: Start difference. First operand 883 states and 1624 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:24,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:31:24,498 INFO L93 Difference]: Finished difference Result 992 states and 1788 transitions. [2024-11-08 17:31:24,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:31:24,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2024-11-08 17:31:24,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:31:24,503 INFO L225 Difference]: With dead ends: 992 [2024-11-08 17:31:24,504 INFO L226 Difference]: Without dead ends: 885 [2024-11-08 17:31:24,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:31:24,506 INFO L432 NwaCegarLoop]: 1504 mSDtfsCounter, 1475 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1475 SdHoareTripleChecker+Valid, 1636 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:31:24,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1475 Valid, 1636 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:31:24,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2024-11-08 17:31:24,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 883. [2024-11-08 17:31:24,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 881 states have (on average 1.8410896708286038) internal successors, (1622), 882 states have internal predecessors, (1622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:24,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1622 transitions. [2024-11-08 17:31:24,537 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1622 transitions. Word has length 38 [2024-11-08 17:31:24,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:31:24,539 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1622 transitions. [2024-11-08 17:31:24,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:24,540 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1622 transitions. [2024-11-08 17:31:24,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-08 17:31:24,541 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:31:24,541 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] [2024-11-08 17:31:24,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:31:24,542 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:31:24,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:31:24,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1294196249, now seen corresponding path program 1 times [2024-11-08 17:31:24,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:31:24,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74472564] [2024-11-08 17:31:24,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:24,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:31:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:24,810 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 17:31:24,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:31:24,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74472564] [2024-11-08 17:31:24,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74472564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:31:24,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:31:24,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:31:24,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109484049] [2024-11-08 17:31:24,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:31:24,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:31:24,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:31:24,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:31:24,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:31:24,816 INFO L87 Difference]: Start difference. First operand 883 states and 1622 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:24,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:31:24,891 INFO L93 Difference]: Finished difference Result 891 states and 1631 transitions. [2024-11-08 17:31:24,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:31:24,892 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2024-11-08 17:31:24,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:31:24,901 INFO L225 Difference]: With dead ends: 891 [2024-11-08 17:31:24,901 INFO L226 Difference]: Without dead ends: 889 [2024-11-08 17:31:24,902 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:31:24,903 INFO L432 NwaCegarLoop]: 1506 mSDtfsCounter, 0 mSDsluCounter, 4509 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6015 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:31:24,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6015 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:31:24,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2024-11-08 17:31:24,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 889. [2024-11-08 17:31:24,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 887 states have (on average 1.834272829763247) internal successors, (1627), 888 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:24,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1627 transitions. [2024-11-08 17:31:24,941 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1627 transitions. Word has length 39 [2024-11-08 17:31:24,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:31:24,942 INFO L471 AbstractCegarLoop]: Abstraction has 889 states and 1627 transitions. [2024-11-08 17:31:24,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:24,942 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1627 transitions. [2024-11-08 17:31:24,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-08 17:31:24,945 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:31:24,946 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] [2024-11-08 17:31:24,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:31:24,946 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:31:24,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:31:24,947 INFO L85 PathProgramCache]: Analyzing trace with hash -954024366, now seen corresponding path program 1 times [2024-11-08 17:31:24,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:31:24,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345309862] [2024-11-08 17:31:24,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:24,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:31:24,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:25,031 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 17:31:25,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:31:25,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345309862] [2024-11-08 17:31:25,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345309862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:31:25,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:31:25,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:31:25,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733169226] [2024-11-08 17:31:25,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:31:25,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:31:25,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:31:25,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:31:25,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:31:25,035 INFO L87 Difference]: Start difference. First operand 889 states and 1627 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:25,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:31:25,083 INFO L93 Difference]: Finished difference Result 1016 states and 1813 transitions. [2024-11-08 17:31:25,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:31:25,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 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 40 [2024-11-08 17:31:25,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:31:25,088 INFO L225 Difference]: With dead ends: 1016 [2024-11-08 17:31:25,089 INFO L226 Difference]: Without dead ends: 950 [2024-11-08 17:31:25,090 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 17:31:25,094 INFO L432 NwaCegarLoop]: 1541 mSDtfsCounter, 1476 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1476 SdHoareTripleChecker+Valid, 1590 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:31:25,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1476 Valid, 1590 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:31:25,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2024-11-08 17:31:25,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 948. [2024-11-08 17:31:25,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 946 states have (on average 1.8086680761099365) internal successors, (1711), 947 states have internal predecessors, (1711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:25,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1711 transitions. [2024-11-08 17:31:25,129 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1711 transitions. Word has length 40 [2024-11-08 17:31:25,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:31:25,132 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1711 transitions. [2024-11-08 17:31:25,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:25,132 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1711 transitions. [2024-11-08 17:31:25,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-08 17:31:25,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:31:25,135 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] [2024-11-08 17:31:25,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 17:31:25,136 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:31:25,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:31:25,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1125474130, now seen corresponding path program 1 times [2024-11-08 17:31:25,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:31:25,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656398999] [2024-11-08 17:31:25,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:25,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:31:25,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:25,235 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 17:31:25,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:31:25,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656398999] [2024-11-08 17:31:25,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656398999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:31:25,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:31:25,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:31:25,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209389102] [2024-11-08 17:31:25,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:31:25,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:31:25,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:31:25,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:31:25,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:31:25,238 INFO L87 Difference]: Start difference. First operand 948 states and 1711 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:25,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:31:25,283 INFO L93 Difference]: Finished difference Result 1262 states and 2163 transitions. [2024-11-08 17:31:25,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:31:25,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 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 40 [2024-11-08 17:31:25,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:31:25,291 INFO L225 Difference]: With dead ends: 1262 [2024-11-08 17:31:25,291 INFO L226 Difference]: Without dead ends: 1093 [2024-11-08 17:31:25,292 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 17:31:25,293 INFO L432 NwaCegarLoop]: 1543 mSDtfsCounter, 1474 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 1596 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:31:25,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1474 Valid, 1596 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:31:25,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2024-11-08 17:31:25,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 1091. [2024-11-08 17:31:25,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1091 states, 1089 states have (on average 1.7529843893480257) internal successors, (1909), 1090 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:25,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1909 transitions. [2024-11-08 17:31:25,334 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1909 transitions. Word has length 40 [2024-11-08 17:31:25,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:31:25,334 INFO L471 AbstractCegarLoop]: Abstraction has 1091 states and 1909 transitions. [2024-11-08 17:31:25,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:25,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1909 transitions. [2024-11-08 17:31:25,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-08 17:31:25,336 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:31:25,336 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] [2024-11-08 17:31:25,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:31:25,336 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:31:25,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:31:25,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1388560302, now seen corresponding path program 1 times [2024-11-08 17:31:25,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:31:25,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98120046] [2024-11-08 17:31:25,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:25,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:31:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:25,429 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 17:31:25,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:31:25,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98120046] [2024-11-08 17:31:25,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98120046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:31:25,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:31:25,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:31:25,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525704758] [2024-11-08 17:31:25,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:31:25,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:31:25,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:31:25,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:31:25,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:31:25,432 INFO L87 Difference]: Start difference. First operand 1091 states and 1909 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:25,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:31:25,482 INFO L93 Difference]: Finished difference Result 1667 states and 2715 transitions. [2024-11-08 17:31:25,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:31:25,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 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 40 [2024-11-08 17:31:25,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:31:25,489 INFO L225 Difference]: With dead ends: 1667 [2024-11-08 17:31:25,489 INFO L226 Difference]: Without dead ends: 1355 [2024-11-08 17:31:25,490 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 17:31:25,491 INFO L432 NwaCegarLoop]: 1541 mSDtfsCounter, 1472 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 1598 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:31:25,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1472 Valid, 1598 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:31:25,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1355 states. [2024-11-08 17:31:25,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1355 to 1353. [2024-11-08 17:31:25,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1353 states, 1351 states have (on average 1.6706143597335308) internal successors, (2257), 1352 states have internal predecessors, (2257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:25,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1353 states to 1353 states and 2257 transitions. [2024-11-08 17:31:25,630 INFO L78 Accepts]: Start accepts. Automaton has 1353 states and 2257 transitions. Word has length 40 [2024-11-08 17:31:25,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:31:25,631 INFO L471 AbstractCegarLoop]: Abstraction has 1353 states and 2257 transitions. [2024-11-08 17:31:25,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:25,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1353 states and 2257 transitions. [2024-11-08 17:31:25,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-08 17:31:25,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:31:25,633 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:31:25,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 17:31:25,634 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:31:25,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:31:25,635 INFO L85 PathProgramCache]: Analyzing trace with hash -612882793, now seen corresponding path program 1 times [2024-11-08 17:31:25,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:31:25,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046183112] [2024-11-08 17:31:25,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:25,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:31:25,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:25,912 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:31:25,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:31:25,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046183112] [2024-11-08 17:31:25,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046183112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:31:25,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:31:25,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:31:25,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718271755] [2024-11-08 17:31:25,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:31:25,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:31:25,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:31:25,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:31:25,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:31:25,917 INFO L87 Difference]: Start difference. First operand 1353 states and 2257 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:26,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:31:26,126 INFO L93 Difference]: Finished difference Result 3053 states and 4601 transitions. [2024-11-08 17:31:26,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:31:26,127 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 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 56 [2024-11-08 17:31:26,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:31:26,142 INFO L225 Difference]: With dead ends: 3053 [2024-11-08 17:31:26,142 INFO L226 Difference]: Without dead ends: 2635 [2024-11-08 17:31:26,144 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 17:31:26,145 INFO L432 NwaCegarLoop]: 1550 mSDtfsCounter, 3040 mSDsluCounter, 1628 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3040 SdHoareTripleChecker+Valid, 3178 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:31:26,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3040 Valid, 3178 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:31:26,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2635 states. [2024-11-08 17:31:26,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2635 to 1849. [2024-11-08 17:31:26,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1849 states, 1847 states have (on average 1.5879805089334056) internal successors, (2933), 1848 states have internal predecessors, (2933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:26,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1849 states to 1849 states and 2933 transitions. [2024-11-08 17:31:26,245 INFO L78 Accepts]: Start accepts. Automaton has 1849 states and 2933 transitions. Word has length 56 [2024-11-08 17:31:26,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:31:26,247 INFO L471 AbstractCegarLoop]: Abstraction has 1849 states and 2933 transitions. [2024-11-08 17:31:26,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:26,247 INFO L276 IsEmpty]: Start isEmpty. Operand 1849 states and 2933 transitions. [2024-11-08 17:31:26,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-08 17:31:26,251 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:31:26,251 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:31:26,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 17:31:26,252 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:31:26,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:31:26,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1466615703, now seen corresponding path program 1 times [2024-11-08 17:31:26,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:31:26,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663984452] [2024-11-08 17:31:26,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:26,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:31:26,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:26,496 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 17:31:26,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:31:26,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663984452] [2024-11-08 17:31:26,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663984452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:31:26,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:31:26,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:31:26,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418761395] [2024-11-08 17:31:26,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:31:26,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:31:26,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:31:26,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:31:26,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:31:26,504 INFO L87 Difference]: Start difference. First operand 1849 states and 2933 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 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 17:31:26,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:31:26,719 INFO L93 Difference]: Finished difference Result 3625 states and 5385 transitions. [2024-11-08 17:31:26,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:31:26,720 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 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 56 [2024-11-08 17:31:26,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:31:26,736 INFO L225 Difference]: With dead ends: 3625 [2024-11-08 17:31:26,737 INFO L226 Difference]: Without dead ends: 3051 [2024-11-08 17:31:26,739 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 17:31:26,740 INFO L432 NwaCegarLoop]: 1549 mSDtfsCounter, 3044 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3044 SdHoareTripleChecker+Valid, 3152 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:31:26,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3044 Valid, 3152 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:31:26,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3051 states. [2024-11-08 17:31:26,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3051 to 2629. [2024-11-08 17:31:26,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2629 states, 2627 states have (on average 1.5199847735059002) internal successors, (3993), 2628 states have internal predecessors, (3993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:26,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2629 states to 2629 states and 3993 transitions. [2024-11-08 17:31:26,883 INFO L78 Accepts]: Start accepts. Automaton has 2629 states and 3993 transitions. Word has length 56 [2024-11-08 17:31:26,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:31:26,883 INFO L471 AbstractCegarLoop]: Abstraction has 2629 states and 3993 transitions. [2024-11-08 17:31:26,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 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 17:31:26,884 INFO L276 IsEmpty]: Start isEmpty. Operand 2629 states and 3993 transitions. [2024-11-08 17:31:26,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-08 17:31:26,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:31:26,886 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:31:26,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 17:31:26,887 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:31:26,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:31:26,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1047418729, now seen corresponding path program 1 times [2024-11-08 17:31:26,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:31:26,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653720512] [2024-11-08 17:31:26,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:26,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:31:26,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:27,062 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 17:31:27,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:31:27,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653720512] [2024-11-08 17:31:27,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653720512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:31:27,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:31:27,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:31:27,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857804972] [2024-11-08 17:31:27,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:31:27,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:31:27,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:31:27,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:31:27,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:31:27,067 INFO L87 Difference]: Start difference. First operand 2629 states and 3993 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:27,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:31:27,268 INFO L93 Difference]: Finished difference Result 4197 states and 6165 transitions. [2024-11-08 17:31:27,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:31:27,269 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 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 56 [2024-11-08 17:31:27,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:31:27,283 INFO L225 Difference]: With dead ends: 4197 [2024-11-08 17:31:27,283 INFO L226 Difference]: Without dead ends: 3623 [2024-11-08 17:31:27,285 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 17:31:27,286 INFO L432 NwaCegarLoop]: 1548 mSDtfsCounter, 3050 mSDsluCounter, 1611 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3050 SdHoareTripleChecker+Valid, 3159 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:31:27,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3050 Valid, 3159 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:31:27,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3623 states. [2024-11-08 17:31:27,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3623 to 3201. [2024-11-08 17:31:27,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3201 states, 3199 states have (on average 1.4920287589871835) internal successors, (4773), 3200 states have internal predecessors, (4773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:27,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3201 states to 3201 states and 4773 transitions. [2024-11-08 17:31:27,410 INFO L78 Accepts]: Start accepts. Automaton has 3201 states and 4773 transitions. Word has length 56 [2024-11-08 17:31:27,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:31:27,410 INFO L471 AbstractCegarLoop]: Abstraction has 3201 states and 4773 transitions. [2024-11-08 17:31:27,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:27,411 INFO L276 IsEmpty]: Start isEmpty. Operand 3201 states and 4773 transitions. [2024-11-08 17:31:27,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-08 17:31:27,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:31:27,413 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:31:27,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 17:31:27,413 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:31:27,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:31:27,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1828342875, now seen corresponding path program 1 times [2024-11-08 17:31:27,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:31:27,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700354417] [2024-11-08 17:31:27,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:27,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:31:27,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:27,527 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:31:27,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:31:27,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700354417] [2024-11-08 17:31:27,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700354417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:31:27,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:31:27,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:31:27,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126432672] [2024-11-08 17:31:27,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:31:27,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:31:27,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:31:27,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:31:27,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:31:27,530 INFO L87 Difference]: Start difference. First operand 3201 states and 4773 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 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 17:31:27,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:31:27,652 INFO L93 Difference]: Finished difference Result 5625 states and 8083 transitions. [2024-11-08 17:31:27,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:31:27,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 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 17:31:27,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:31:27,664 INFO L225 Difference]: With dead ends: 5625 [2024-11-08 17:31:27,664 INFO L226 Difference]: Without dead ends: 3203 [2024-11-08 17:31:27,667 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 17:31:27,668 INFO L432 NwaCegarLoop]: 1528 mSDtfsCounter, 29 mSDsluCounter, 1497 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 3025 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:31:27,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 3025 Invalid, 5 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:31:27,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3203 states. [2024-11-08 17:31:27,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3203 to 3201. [2024-11-08 17:31:27,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3201 states, 3199 states have (on average 1.4763988746483276) internal successors, (4723), 3200 states have internal predecessors, (4723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:27,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3201 states to 3201 states and 4723 transitions. [2024-11-08 17:31:27,769 INFO L78 Accepts]: Start accepts. Automaton has 3201 states and 4723 transitions. Word has length 57 [2024-11-08 17:31:27,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:31:27,769 INFO L471 AbstractCegarLoop]: Abstraction has 3201 states and 4723 transitions. [2024-11-08 17:31:27,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 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 17:31:27,770 INFO L276 IsEmpty]: Start isEmpty. Operand 3201 states and 4723 transitions. [2024-11-08 17:31:27,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-08 17:31:27,771 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:31:27,771 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:31:27,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 17:31:27,771 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:31:27,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:31:27,772 INFO L85 PathProgramCache]: Analyzing trace with hash -680790321, now seen corresponding path program 1 times [2024-11-08 17:31:27,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:31:27,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542151953] [2024-11-08 17:31:27,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:27,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:31:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:27,896 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:31:27,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:31:27,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542151953] [2024-11-08 17:31:27,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542151953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:31:27,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:31:27,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:31:27,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930917675] [2024-11-08 17:31:27,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:31:27,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:31:27,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:31:27,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:31:27,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:31:27,899 INFO L87 Difference]: Start difference. First operand 3201 states and 4723 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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 17:31:27,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:31:27,953 INFO L93 Difference]: Finished difference Result 4157 states and 6020 transitions. [2024-11-08 17:31:27,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:31:27,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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 17:31:27,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:31:27,960 INFO L225 Difference]: With dead ends: 4157 [2024-11-08 17:31:27,961 INFO L226 Difference]: Without dead ends: 1735 [2024-11-08 17:31:27,963 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 17:31:27,964 INFO L432 NwaCegarLoop]: 1526 mSDtfsCounter, 23 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 3022 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:31:27,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 3022 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:31:27,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1735 states. [2024-11-08 17:31:28,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1735 to 1726. [2024-11-08 17:31:28,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1726 states, 1724 states have (on average 1.58584686774942) internal successors, (2734), 1725 states have internal predecessors, (2734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:28,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 2734 transitions. [2024-11-08 17:31:28,017 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 2734 transitions. Word has length 58 [2024-11-08 17:31:28,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:31:28,017 INFO L471 AbstractCegarLoop]: Abstraction has 1726 states and 2734 transitions. [2024-11-08 17:31:28,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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 17:31:28,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 2734 transitions. [2024-11-08 17:31:28,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-08 17:31:28,022 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:31:28,023 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:31:28,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 17:31:28,023 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:31:28,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:31:28,023 INFO L85 PathProgramCache]: Analyzing trace with hash -2146393385, now seen corresponding path program 1 times [2024-11-08 17:31:28,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:31:28,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269677046] [2024-11-08 17:31:28,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:28,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:31:28,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:28,133 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:31:28,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:31:28,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269677046] [2024-11-08 17:31:28,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269677046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:31:28,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:31:28,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:31:28,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566351834] [2024-11-08 17:31:28,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:31:28,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:31:28,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:31:28,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:31:28,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:31:28,136 INFO L87 Difference]: Start difference. First operand 1726 states and 2734 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 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 17:31:28,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:31:28,172 INFO L93 Difference]: Finished difference Result 2198 states and 3366 transitions. [2024-11-08 17:31:28,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:31:28,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 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 17:31:28,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:31:28,177 INFO L225 Difference]: With dead ends: 2198 [2024-11-08 17:31:28,181 INFO L226 Difference]: Without dead ends: 1260 [2024-11-08 17:31:28,183 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 17:31:28,183 INFO L432 NwaCegarLoop]: 1520 mSDtfsCounter, 25 mSDsluCounter, 1481 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 3001 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:31:28,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 3001 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:31:28,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1260 states. [2024-11-08 17:31:28,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1260 to 1258. [2024-11-08 17:31:28,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1258 states, 1256 states have (on average 1.6679936305732483) internal successors, (2095), 1257 states have internal predecessors, (2095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:28,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 2095 transitions. [2024-11-08 17:31:28,224 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 2095 transitions. Word has length 59 [2024-11-08 17:31:28,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:31:28,224 INFO L471 AbstractCegarLoop]: Abstraction has 1258 states and 2095 transitions. [2024-11-08 17:31:28,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 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 17:31:28,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 2095 transitions. [2024-11-08 17:31:28,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-08 17:31:28,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:31:28,229 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:31:28,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 17:31:28,229 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:31:28,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:31:28,230 INFO L85 PathProgramCache]: Analyzing trace with hash -486995831, now seen corresponding path program 1 times [2024-11-08 17:31:28,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:31:28,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843380216] [2024-11-08 17:31:28,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:28,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:31:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:28,444 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:31:28,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:31:28,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843380216] [2024-11-08 17:31:28,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843380216] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:31:28,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27233484] [2024-11-08 17:31:28,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:28,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:31:28,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:31:28,450 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:31:28,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:31:28,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:28,613 INFO L255 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 17:31:28,621 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:31:28,818 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:31:28,818 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:31:29,266 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:31:29,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27233484] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:31:29,266 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:31:29,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 4] total 9 [2024-11-08 17:31:29,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551452587] [2024-11-08 17:31:29,267 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:31:29,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:31:29,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:31:29,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:31:29,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:31:29,269 INFO L87 Difference]: Start difference. First operand 1258 states and 2095 transitions. Second operand has 9 states, 9 states have (on average 16.22222222222222) internal successors, (146), 9 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:29,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:31:29,438 INFO L93 Difference]: Finished difference Result 2375 states and 3544 transitions. [2024-11-08 17:31:29,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:31:29,438 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.22222222222222) internal successors, (146), 9 states have internal predecessors, (146), 0 states have call successors, (0), 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 17:31:29,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:31:29,449 INFO L225 Difference]: With dead ends: 2375 [2024-11-08 17:31:29,450 INFO L226 Difference]: Without dead ends: 1905 [2024-11-08 17:31:29,451 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=48, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:31:29,452 INFO L432 NwaCegarLoop]: 1504 mSDtfsCounter, 1528 mSDsluCounter, 3149 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1528 SdHoareTripleChecker+Valid, 4653 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:31:29,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1528 Valid, 4653 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:31:29,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1905 states. [2024-11-08 17:31:29,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1905 to 1841. [2024-11-08 17:31:29,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1841 states, 1839 states have (on average 1.524741707449701) internal successors, (2804), 1840 states have internal predecessors, (2804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:29,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1841 states to 1841 states and 2804 transitions. [2024-11-08 17:31:29,523 INFO L78 Accepts]: Start accepts. Automaton has 1841 states and 2804 transitions. Word has length 61 [2024-11-08 17:31:29,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:31:29,524 INFO L471 AbstractCegarLoop]: Abstraction has 1841 states and 2804 transitions. [2024-11-08 17:31:29,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.22222222222222) internal successors, (146), 9 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:29,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1841 states and 2804 transitions. [2024-11-08 17:31:29,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-08 17:31:29,525 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:31:29,526 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 17:31:29,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 17:31:29,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:31:29,727 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:31:29,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:31:29,727 INFO L85 PathProgramCache]: Analyzing trace with hash -2116429644, now seen corresponding path program 1 times [2024-11-08 17:31:29,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:31:29,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087321686] [2024-11-08 17:31:29,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:29,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:31:29,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:29,958 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 17:31:29,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:31:29,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087321686] [2024-11-08 17:31:29,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087321686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:31:29,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:31:29,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:31:29,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497265067] [2024-11-08 17:31:29,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:31:29,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:31:29,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:31:29,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:31:29,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:31:29,962 INFO L87 Difference]: Start difference. First operand 1841 states and 2804 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 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 17:31:39,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:31:39,218 INFO L93 Difference]: Finished difference Result 4096 states and 7113 transitions. [2024-11-08 17:31:39,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:31:39,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 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 17:31:39,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:31:39,227 INFO L225 Difference]: With dead ends: 4096 [2024-11-08 17:31:39,227 INFO L226 Difference]: Without dead ends: 3343 [2024-11-08 17:31:39,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:31:39,230 INFO L432 NwaCegarLoop]: 745 mSDtfsCounter, 2331 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5354 mSolverCounterSat, 1153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2331 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 6507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1153 IncrementalHoareTripleChecker+Valid, 5354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:31:39,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2331 Valid, 763 Invalid, 6507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1153 Valid, 5354 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2024-11-08 17:31:39,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3343 states. [2024-11-08 17:31:39,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3343 to 3343. [2024-11-08 17:31:39,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3343 states, 3341 states have (on average 1.4720143669560013) internal successors, (4918), 3342 states have internal predecessors, (4918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:39,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3343 states to 3343 states and 4918 transitions. [2024-11-08 17:31:39,320 INFO L78 Accepts]: Start accepts. Automaton has 3343 states and 4918 transitions. Word has length 61 [2024-11-08 17:31:39,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:31:39,320 INFO L471 AbstractCegarLoop]: Abstraction has 3343 states and 4918 transitions. [2024-11-08 17:31:39,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 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 17:31:39,321 INFO L276 IsEmpty]: Start isEmpty. Operand 3343 states and 4918 transitions. [2024-11-08 17:31:39,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-08 17:31:39,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:31:39,322 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:31:39,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 17:31:39,322 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:31:39,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:31:39,323 INFO L85 PathProgramCache]: Analyzing trace with hash -980069013, now seen corresponding path program 1 times [2024-11-08 17:31:39,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:31:39,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663327095] [2024-11-08 17:31:39,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:39,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:31:39,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:39,996 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:31:39,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:31:39,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663327095] [2024-11-08 17:31:39,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663327095] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:31:39,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595171220] [2024-11-08 17:31:39,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:39,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:31:39,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:31:40,000 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:31:40,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 17:31:40,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:40,150 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 17:31:40,153 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:31:40,755 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:31:40,755 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:31:42,185 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:31:42,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595171220] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:31:42,186 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:31:42,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-08 17:31:42,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097412864] [2024-11-08 17:31:42,187 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:31:42,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-08 17:31:42,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:31:42,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-08 17:31:42,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2024-11-08 17:31:42,190 INFO L87 Difference]: Start difference. First operand 3343 states and 4918 transitions. Second operand has 25 states, 25 states have (on average 6.16) internal successors, (154), 24 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:45,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:31:45,067 INFO L93 Difference]: Finished difference Result 7272 states and 9910 transitions. [2024-11-08 17:31:45,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-08 17:31:45,068 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 6.16) internal successors, (154), 24 states have internal predecessors, (154), 0 states have call successors, (0), 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 17:31:45,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:31:45,089 INFO L225 Difference]: With dead ends: 7272 [2024-11-08 17:31:45,090 INFO L226 Difference]: Without dead ends: 6241 [2024-11-08 17:31:45,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 524 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=629, Invalid=2233, Unknown=0, NotChecked=0, Total=2862 [2024-11-08 17:31:45,095 INFO L432 NwaCegarLoop]: 1506 mSDtfsCounter, 18597 mSDsluCounter, 5008 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18597 SdHoareTripleChecker+Valid, 6514 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 17:31:45,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18597 Valid, 6514 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 17:31:45,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6241 states. [2024-11-08 17:31:45,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6241 to 6167. [2024-11-08 17:31:45,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6167 states, 6165 states have (on average 1.3583130575831306) internal successors, (8374), 6166 states have internal predecessors, (8374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:45,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6167 states to 6167 states and 8374 transitions. [2024-11-08 17:31:45,320 INFO L78 Accepts]: Start accepts. Automaton has 6167 states and 8374 transitions. Word has length 62 [2024-11-08 17:31:45,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:31:45,321 INFO L471 AbstractCegarLoop]: Abstraction has 6167 states and 8374 transitions. [2024-11-08 17:31:45,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 6.16) internal successors, (154), 24 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:45,322 INFO L276 IsEmpty]: Start isEmpty. Operand 6167 states and 8374 transitions. [2024-11-08 17:31:45,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-08 17:31:45,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:31:45,323 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:31:45,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 17:31:45,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-08 17:31:45,524 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:31:45,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:31:45,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1773038371, now seen corresponding path program 1 times [2024-11-08 17:31:45,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:31:45,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673536422] [2024-11-08 17:31:45,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:45,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:31:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:46,111 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:31:46,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:31:46,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673536422] [2024-11-08 17:31:46,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673536422] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:31:46,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275644479] [2024-11-08 17:31:46,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:46,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:31:46,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:31:46,115 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:31:46,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 17:31:46,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:46,255 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-08 17:31:46,257 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:31:47,193 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:31:47,194 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:31:48,753 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:31:48,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275644479] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:31:48,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:31:48,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 13] total 32 [2024-11-08 17:31:48,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210626222] [2024-11-08 17:31:48,755 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:31:48,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-08 17:31:48,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:31:48,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-08 17:31:48,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=886, Unknown=0, NotChecked=0, Total=992 [2024-11-08 17:31:48,757 INFO L87 Difference]: Start difference. First operand 6167 states and 8374 transitions. Second operand has 32 states, 32 states have (on average 5.1875) internal successors, (166), 32 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:51,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:31:51,812 INFO L93 Difference]: Finished difference Result 12057 states and 15690 transitions. [2024-11-08 17:31:51,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-08 17:31:51,813 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 5.1875) internal successors, (166), 32 states have internal predecessors, (166), 0 states have call successors, (0), 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 17:31:51,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:31:51,831 INFO L225 Difference]: With dead ends: 12057 [2024-11-08 17:31:51,831 INFO L226 Difference]: Without dead ends: 8613 [2024-11-08 17:31:51,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=723, Invalid=3059, Unknown=0, NotChecked=0, Total=3782 [2024-11-08 17:31:51,839 INFO L432 NwaCegarLoop]: 1495 mSDtfsCounter, 17357 mSDsluCounter, 15240 mSDsCounter, 0 mSdLazyCounter, 889 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17357 SdHoareTripleChecker+Valid, 16735 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:31:51,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17357 Valid, 16735 Invalid, 928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 889 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 17:31:51,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8613 states. [2024-11-08 17:31:52,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8613 to 6747. [2024-11-08 17:31:52,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6747 states, 6745 states have (on average 1.337583395107487) internal successors, (9022), 6746 states have internal predecessors, (9022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:52,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6747 states to 6747 states and 9022 transitions. [2024-11-08 17:31:52,130 INFO L78 Accepts]: Start accepts. Automaton has 6747 states and 9022 transitions. Word has length 62 [2024-11-08 17:31:52,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:31:52,130 INFO L471 AbstractCegarLoop]: Abstraction has 6747 states and 9022 transitions. [2024-11-08 17:31:52,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 5.1875) internal successors, (166), 32 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:52,131 INFO L276 IsEmpty]: Start isEmpty. Operand 6747 states and 9022 transitions. [2024-11-08 17:31:52,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-08 17:31:52,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:31:52,133 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:31:52,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 17:31:52,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:31:52,338 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:31:52,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:31:52,338 INFO L85 PathProgramCache]: Analyzing trace with hash 101554535, now seen corresponding path program 1 times [2024-11-08 17:31:52,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:31:52,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281830642] [2024-11-08 17:31:52,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:52,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:31:52,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:53,560 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:31:53,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:31:53,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281830642] [2024-11-08 17:31:53,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281830642] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:31:53,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742337224] [2024-11-08 17:31:53,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:53,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:31:53,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:31:53,568 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:31:53,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 17:31:53,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:53,752 INFO L255 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-08 17:31:53,756 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:31:56,744 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:31:56,745 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:32:00,424 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:32:00,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742337224] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:32:00,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:32:00,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 17, 17] total 42 [2024-11-08 17:32:00,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644980541] [2024-11-08 17:32:00,424 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:32:00,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-08 17:32:00,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:32:00,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-08 17:32:00,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=1494, Unknown=0, NotChecked=0, Total=1722 [2024-11-08 17:32:00,426 INFO L87 Difference]: Start difference. First operand 6747 states and 9022 transitions. Second operand has 42 states, 42 states have (on average 3.857142857142857) internal successors, (162), 42 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:32:10,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:32:10,826 INFO L93 Difference]: Finished difference Result 12755 states and 16374 transitions. [2024-11-08 17:32:10,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-11-08 17:32:10,827 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 3.857142857142857) internal successors, (162), 42 states have internal predecessors, (162), 0 states have call successors, (0), 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 17:32:10,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:32:10,842 INFO L225 Difference]: With dead ends: 12755 [2024-11-08 17:32:10,842 INFO L226 Difference]: Without dead ends: 9556 [2024-11-08 17:32:10,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2306 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=1909, Invalid=7403, Unknown=0, NotChecked=0, Total=9312 [2024-11-08 17:32:10,849 INFO L432 NwaCegarLoop]: 1507 mSDtfsCounter, 16494 mSDsluCounter, 18378 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16494 SdHoareTripleChecker+Valid, 19885 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:32:10,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16494 Valid, 19885 Invalid, 1332 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [76 Valid, 1256 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 17:32:10,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9556 states. [2024-11-08 17:32:11,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9556 to 8088. [2024-11-08 17:32:11,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8088 states, 8086 states have (on average 1.3127627999010636) internal successors, (10615), 8087 states have internal predecessors, (10615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:32:11,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8088 states to 8088 states and 10615 transitions. [2024-11-08 17:32:11,256 INFO L78 Accepts]: Start accepts. Automaton has 8088 states and 10615 transitions. Word has length 63 [2024-11-08 17:32:11,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:32:11,256 INFO L471 AbstractCegarLoop]: Abstraction has 8088 states and 10615 transitions. [2024-11-08 17:32:11,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 3.857142857142857) internal successors, (162), 42 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:32:11,257 INFO L276 IsEmpty]: Start isEmpty. Operand 8088 states and 10615 transitions. [2024-11-08 17:32:11,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-08 17:32:11,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:32:11,258 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:32:11,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 17:32:11,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:32:11,458 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:32:11,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:32:11,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1359923071, now seen corresponding path program 1 times [2024-11-08 17:32:11,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:32:11,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110931728] [2024-11-08 17:32:11,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:32:11,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:32:11,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:32:13,016 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:32:13,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:32:13,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110931728] [2024-11-08 17:32:13,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110931728] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:32:13,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135603335] [2024-11-08 17:32:13,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:32:13,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:32:13,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:32:13,019 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:32:13,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 17:32:13,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:32:13,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 17:32:13,143 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:32:14,117 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:32:14,117 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:32:14,911 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:32:14,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135603335] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:32:14,911 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:32:14,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11, 11] total 34 [2024-11-08 17:32:14,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612325074] [2024-11-08 17:32:14,912 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:32:14,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-08 17:32:14,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:32:14,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-08 17:32:14,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1018, Unknown=0, NotChecked=0, Total=1122 [2024-11-08 17:32:14,913 INFO L87 Difference]: Start difference. First operand 8088 states and 10615 transitions. Second operand has 34 states, 34 states have (on average 4.970588235294118) internal successors, (169), 34 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:32:20,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:32:20,362 INFO L93 Difference]: Finished difference Result 11321 states and 14506 transitions. [2024-11-08 17:32:20,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-08 17:32:20,362 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.970588235294118) internal successors, (169), 34 states have internal predecessors, (169), 0 states have call successors, (0), 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 65 [2024-11-08 17:32:20,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:32:20,374 INFO L225 Difference]: With dead ends: 11321 [2024-11-08 17:32:20,374 INFO L226 Difference]: Without dead ends: 8425 [2024-11-08 17:32:20,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 975 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=981, Invalid=3849, Unknown=0, NotChecked=0, Total=4830 [2024-11-08 17:32:20,380 INFO L432 NwaCegarLoop]: 1540 mSDtfsCounter, 16009 mSDsluCounter, 17182 mSDsCounter, 0 mSdLazyCounter, 1349 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16009 SdHoareTripleChecker+Valid, 18722 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:32:20,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16009 Valid, 18722 Invalid, 1390 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [41 Valid, 1349 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 17:32:20,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8425 states. [2024-11-08 17:32:20,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8425 to 6972. [2024-11-08 17:32:20,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6972 states, 6970 states have (on average 1.326542324246772) internal successors, (9246), 6971 states have internal predecessors, (9246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:32:20,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6972 states to 6972 states and 9246 transitions. [2024-11-08 17:32:20,725 INFO L78 Accepts]: Start accepts. Automaton has 6972 states and 9246 transitions. Word has length 65 [2024-11-08 17:32:20,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:32:20,725 INFO L471 AbstractCegarLoop]: Abstraction has 6972 states and 9246 transitions. [2024-11-08 17:32:20,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.970588235294118) internal successors, (169), 34 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:32:20,725 INFO L276 IsEmpty]: Start isEmpty. Operand 6972 states and 9246 transitions. [2024-11-08 17:32:20,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-08 17:32:20,728 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:32:20,728 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:32:20,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-08 17:32:20,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:32:20,929 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:32:20,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:32:20,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1616412163, now seen corresponding path program 1 times [2024-11-08 17:32:20,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:32:20,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400807248] [2024-11-08 17:32:20,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:32:20,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:32:21,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:32:22,162 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 39 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:32:22,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:32:22,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400807248] [2024-11-08 17:32:22,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400807248] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:32:22,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564524140] [2024-11-08 17:32:22,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:32:22,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:32:22,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:32:22,165 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:32:22,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 17:32:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:32:22,316 INFO L255 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 17:32:22,320 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:32:23,394 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 34 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:32:23,394 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:32:25,583 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 31 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:32:25,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [564524140] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:32:25,584 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:32:25,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 11] total 34 [2024-11-08 17:32:25,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201045384] [2024-11-08 17:32:25,584 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:32:25,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-08 17:32:25,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:32:25,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-08 17:32:25,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1075, Unknown=0, NotChecked=0, Total=1190 [2024-11-08 17:32:25,586 INFO L87 Difference]: Start difference. First operand 6972 states and 9246 transitions. Second operand has 35 states, 35 states have (on average 7.914285714285715) internal successors, (277), 34 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:32:34,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:32:34,926 INFO L93 Difference]: Finished difference Result 14263 states and 18132 transitions. [2024-11-08 17:32:34,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2024-11-08 17:32:34,926 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 7.914285714285715) internal successors, (277), 34 states have internal predecessors, (277), 0 states have call successors, (0), 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 17:32:34,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:32:34,941 INFO L225 Difference]: With dead ends: 14263 [2024-11-08 17:32:34,941 INFO L226 Difference]: Without dead ends: 10407 [2024-11-08 17:32:34,950 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5894 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=3283, Invalid=16457, Unknown=0, NotChecked=0, Total=19740 [2024-11-08 17:32:34,951 INFO L432 NwaCegarLoop]: 1553 mSDtfsCounter, 25288 mSDsluCounter, 16535 mSDsCounter, 0 mSdLazyCounter, 1945 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25288 SdHoareTripleChecker+Valid, 18088 SdHoareTripleChecker+Invalid, 2026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 17:32:34,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25288 Valid, 18088 Invalid, 2026 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [81 Valid, 1945 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 17:32:34,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10407 states. [2024-11-08 17:32:35,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10407 to 9831. [2024-11-08 17:32:35,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9831 states, 9829 states have (on average 1.2879234917082103) internal successors, (12659), 9830 states have internal predecessors, (12659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:32:35,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9831 states to 9831 states and 12659 transitions. [2024-11-08 17:32:35,551 INFO L78 Accepts]: Start accepts. Automaton has 9831 states and 12659 transitions. Word has length 103 [2024-11-08 17:32:35,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:32:35,552 INFO L471 AbstractCegarLoop]: Abstraction has 9831 states and 12659 transitions. [2024-11-08 17:32:35,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 7.914285714285715) internal successors, (277), 34 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:32:35,553 INFO L276 IsEmpty]: Start isEmpty. Operand 9831 states and 12659 transitions. [2024-11-08 17:32:35,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 17:32:35,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:32:35,556 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:32:35,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 17:32:35,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:32:35,762 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:32:35,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:32:35,762 INFO L85 PathProgramCache]: Analyzing trace with hash -690970567, now seen corresponding path program 1 times [2024-11-08 17:32:35,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:32:35,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870214324] [2024-11-08 17:32:35,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:32:35,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:32:35,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:32:37,885 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 25 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:32:37,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:32:37,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870214324] [2024-11-08 17:32:37,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870214324] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:32:37,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930341269] [2024-11-08 17:32:37,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:32:37,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:32:37,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:32:37,888 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:32:37,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 17:32:38,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:32:38,088 INFO L255 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-08 17:32:38,094 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:32:42,875 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 59 proven. 7 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-08 17:32:42,875 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:32:49,630 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 35 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:32:49,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930341269] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:32:49,631 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:32:49,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20, 26] total 65 [2024-11-08 17:32:49,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568191628] [2024-11-08 17:32:49,631 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:32:49,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2024-11-08 17:32:49,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:32:49,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2024-11-08 17:32:49,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=392, Invalid=3768, Unknown=0, NotChecked=0, Total=4160 [2024-11-08 17:32:49,636 INFO L87 Difference]: Start difference. First operand 9831 states and 12659 transitions. Second operand has 65 states, 65 states have (on average 4.230769230769231) internal successors, (275), 65 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 17:34:24,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:34:24,542 INFO L93 Difference]: Finished difference Result 19137 states and 24013 transitions. [2024-11-08 17:34:24,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 218 states. [2024-11-08 17:34:24,542 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 65 states have (on average 4.230769230769231) internal successors, (275), 65 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 104 [2024-11-08 17:34:24,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:34:24,556 INFO L225 Difference]: With dead ends: 19137 [2024-11-08 17:34:24,556 INFO L226 Difference]: Without dead ends: 15805 [2024-11-08 17:34:24,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 271 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25120 ImplicationChecksByTransitivity, 91.5s TimeCoverageRelationStatistics Valid=9731, Invalid=64525, Unknown=0, NotChecked=0, Total=74256 [2024-11-08 17:34:24,568 INFO L432 NwaCegarLoop]: 1645 mSDtfsCounter, 16940 mSDsluCounter, 34104 mSDsCounter, 0 mSdLazyCounter, 5575 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16940 SdHoareTripleChecker+Valid, 35749 SdHoareTripleChecker+Invalid, 5796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 5575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:34:24,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16940 Valid, 35749 Invalid, 5796 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [221 Valid, 5575 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2024-11-08 17:34:24,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15805 states. [2024-11-08 17:34:25,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15805 to 13500. [2024-11-08 17:34:25,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13500 states, 13498 states have (on average 1.2665580085938657) internal successors, (17096), 13499 states have internal predecessors, (17096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:34:25,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13500 states to 13500 states and 17096 transitions. [2024-11-08 17:34:25,662 INFO L78 Accepts]: Start accepts. Automaton has 13500 states and 17096 transitions. Word has length 104 [2024-11-08 17:34:25,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:34:25,663 INFO L471 AbstractCegarLoop]: Abstraction has 13500 states and 17096 transitions. [2024-11-08 17:34:25,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 4.230769230769231) internal successors, (275), 65 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 17:34:25,663 INFO L276 IsEmpty]: Start isEmpty. Operand 13500 states and 17096 transitions. [2024-11-08 17:34:25,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 17:34:25,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:34:25,666 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:34:25,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 17:34:25,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-08 17:34:25,867 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:34:25,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:34:25,867 INFO L85 PathProgramCache]: Analyzing trace with hash -2066560961, now seen corresponding path program 1 times [2024-11-08 17:34:25,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:34:25,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754763875] [2024-11-08 17:34:25,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:34:25,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:34:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:34:27,655 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 16 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:34:27,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:34:27,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754763875] [2024-11-08 17:34:27,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754763875] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:34:27,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008984904] [2024-11-08 17:34:27,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:34:27,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:34:27,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:34:27,657 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:34:27,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 17:34:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:34:27,805 INFO L255 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-08 17:34:27,808 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:34:31,308 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 26 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:34:31,309 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:34:35,903 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 26 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:34:35,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008984904] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:34:35,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:34:35,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 18, 18] total 56 [2024-11-08 17:34:35,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326472611] [2024-11-08 17:34:35,904 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:34:35,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-11-08 17:34:35,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:34:35,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-11-08 17:34:35,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=2867, Unknown=0, NotChecked=0, Total=3080 [2024-11-08 17:34:35,907 INFO L87 Difference]: Start difference. First operand 13500 states and 17096 transitions. Second operand has 56 states, 56 states have (on average 5.267857142857143) internal successors, (295), 56 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:11,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:11,847 INFO L93 Difference]: Finished difference Result 26208 states and 32296 transitions. [2024-11-08 17:35:11,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2024-11-08 17:35:11,848 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 5.267857142857143) internal successors, (295), 56 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-08 17:35:11,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:11,874 INFO L225 Difference]: With dead ends: 26208 [2024-11-08 17:35:11,874 INFO L226 Difference]: Without dead ends: 21625 [2024-11-08 17:35:11,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7658 ImplicationChecksByTransitivity, 32.0s TimeCoverageRelationStatistics Valid=4668, Invalid=23724, Unknown=0, NotChecked=0, Total=28392 [2024-11-08 17:35:11,883 INFO L432 NwaCegarLoop]: 1616 mSDtfsCounter, 27667 mSDsluCounter, 46095 mSDsCounter, 0 mSdLazyCounter, 3891 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27667 SdHoareTripleChecker+Valid, 47711 SdHoareTripleChecker+Invalid, 4098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 3891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:35:11,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27667 Valid, 47711 Invalid, 4098 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [207 Valid, 3891 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-08 17:35:11,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21625 states. [2024-11-08 17:35:13,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21625 to 15694. [2024-11-08 17:35:13,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15694 states, 15692 states have (on average 1.2525490695895998) internal successors, (19655), 15693 states have internal predecessors, (19655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:13,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15694 states to 15694 states and 19655 transitions. [2024-11-08 17:35:13,514 INFO L78 Accepts]: Start accepts. Automaton has 15694 states and 19655 transitions. Word has length 105 [2024-11-08 17:35:13,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:13,515 INFO L471 AbstractCegarLoop]: Abstraction has 15694 states and 19655 transitions. [2024-11-08 17:35:13,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 5.267857142857143) internal successors, (295), 56 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:13,515 INFO L276 IsEmpty]: Start isEmpty. Operand 15694 states and 19655 transitions. [2024-11-08 17:35:13,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 17:35:13,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:13,519 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:13,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-08 17:35:13,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-08 17:35:13,720 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:13,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:13,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1484836069, now seen corresponding path program 1 times [2024-11-08 17:35:13,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:13,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765551467] [2024-11-08 17:35:13,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:13,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:13,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:16,552 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 16 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:16,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:16,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765551467] [2024-11-08 17:35:16,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765551467] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:35:16,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836955959] [2024-11-08 17:35:16,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:16,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:35:16,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:35:16,555 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:35:16,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ce19255-d16c-48d4-bb37-5a573fa93da1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 17:35:16,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:16,719 INFO L255 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-11-08 17:35:16,722 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:35:23,119 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 34 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:23,119 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:35:59,907 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 16 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:59,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836955959] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:35:59,908 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:35:59,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 30, 28] total 75 [2024-11-08 17:35:59,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639226161] [2024-11-08 17:35:59,908 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:35:59,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2024-11-08 17:35:59,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:59,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2024-11-08 17:35:59,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=545, Invalid=5005, Unknown=0, NotChecked=0, Total=5550 [2024-11-08 17:35:59,910 INFO L87 Difference]: Start difference. First operand 15694 states and 19655 transitions. Second operand has 75 states, 75 states have (on average 3.6666666666666665) internal successors, (275), 75 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 17:41:32,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-08 17:44:01,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1]