./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 72aca9735a0330ad4ed4e9de4f21904354ce62c742d488d0b09ce6da875c2798 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:51:39,446 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:51:39,544 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 06:51:39,549 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:51:39,550 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:51:39,574 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:51:39,575 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:51:39,575 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:51:39,576 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:51:39,576 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:51:39,577 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:51:39,577 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:51:39,590 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:51:39,591 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:51:39,591 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:51:39,591 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:51:39,592 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:51:39,592 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:51:39,592 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:51:39,593 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:51:39,593 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:51:39,598 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:51:39,599 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:51:39,599 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:51:39,599 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:51:39,600 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:51:39,600 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:51:39,600 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:51:39,600 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:51:39,601 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:51:39,601 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:51:39,601 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:51:39,602 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:51:39,602 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:51:39,602 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:51:39,603 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:51:39,603 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:51:39,603 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:51:39,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:51:39,604 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:51:39,604 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:51:39,608 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:51:39,608 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:51:39,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:51:39,608 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:51:39,609 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:51:39,609 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:51:39,609 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72aca9735a0330ad4ed4e9de4f21904354ce62c742d488d0b09ce6da875c2798 [2024-11-09 06:51:39,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:51:39,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:51:39,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:51:39,917 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:51:39,917 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:51:39,919 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+sep-reducer.c Unable to find full path for "g++" [2024-11-09 06:51:41,996 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:51:42,406 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:51:42,407 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2024-11-09 06:51:42,439 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/data/bcb44545d/30546affff1640d1ae818a7927804023/FLAG0e07134e9 [2024-11-09 06:51:42,457 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/data/bcb44545d/30546affff1640d1ae818a7927804023 [2024-11-09 06:51:42,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:51:42,461 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:51:42,463 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:51:42,463 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:51:42,468 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:51:42,469 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:51:42" (1/1) ... [2024-11-09 06:51:42,472 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7253001a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:42, skipping insertion in model container [2024-11-09 06:51:42,472 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:51:42" (1/1) ... [2024-11-09 06:51:42,629 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:51:43,008 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_7982fa89-2b48-4bc4-a036-644825e3d3b9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[8448,8461] [2024-11-09 06:51:43,061 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_7982fa89-2b48-4bc4-a036-644825e3d3b9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[12616,12629] [2024-11-09 06:51:43,143 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_7982fa89-2b48-4bc4-a036-644825e3d3b9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[20366,20379] [2024-11-09 06:51:43,180 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_7982fa89-2b48-4bc4-a036-644825e3d3b9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[27098,27111] [2024-11-09 06:51:43,277 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_7982fa89-2b48-4bc4-a036-644825e3d3b9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[47963,47976] [2024-11-09 06:51:43,388 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_7982fa89-2b48-4bc4-a036-644825e3d3b9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[73065,73078] [2024-11-09 06:51:43,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:51:43,698 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:51:43,776 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_7982fa89-2b48-4bc4-a036-644825e3d3b9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[8448,8461] [2024-11-09 06:51:43,804 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_7982fa89-2b48-4bc4-a036-644825e3d3b9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[12616,12629] [2024-11-09 06:51:43,840 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_7982fa89-2b48-4bc4-a036-644825e3d3b9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[20366,20379] [2024-11-09 06:51:43,864 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_7982fa89-2b48-4bc4-a036-644825e3d3b9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[27098,27111] [2024-11-09 06:51:43,912 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_7982fa89-2b48-4bc4-a036-644825e3d3b9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[47963,47976] [2024-11-09 06:51:43,989 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_7982fa89-2b48-4bc4-a036-644825e3d3b9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[73065,73078] [2024-11-09 06:51:44,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:51:44,151 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:51:44,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:44 WrapperNode [2024-11-09 06:51:44,152 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:51:44,153 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:51:44,154 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:51:44,154 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:51:44,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:44" (1/1) ... [2024-11-09 06:51:44,232 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:44" (1/1) ... [2024-11-09 06:51:44,384 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6152 [2024-11-09 06:51:44,385 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:51:44,386 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:51:44,386 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:51:44,386 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:51:44,428 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:44" (1/1) ... [2024-11-09 06:51:44,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:44" (1/1) ... [2024-11-09 06:51:44,444 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:44" (1/1) ... [2024-11-09 06:51:44,447 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:44" (1/1) ... [2024-11-09 06:51:44,505 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:44" (1/1) ... [2024-11-09 06:51:44,532 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:44" (1/1) ... [2024-11-09 06:51:44,553 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:44" (1/1) ... [2024-11-09 06:51:44,567 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:44" (1/1) ... [2024-11-09 06:51:44,592 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:51:44,593 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:51:44,593 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:51:44,593 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:51:44,595 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:44" (1/1) ... [2024-11-09 06:51:44,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:51:44,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:51:44,625 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:51:44,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:51:44,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:51:44,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:51:44,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:51:44,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:51:45,014 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:51:45,016 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:51:48,678 INFO L? ?]: Removed 1224 outVars from TransFormulas that were not future-live. [2024-11-09 06:51:48,679 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:51:49,169 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:51:49,169 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:51:49,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:51:49 BoogieIcfgContainer [2024-11-09 06:51:49,169 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:51:49,172 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:51:49,172 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:51:49,178 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:51:49,179 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:51:42" (1/3) ... [2024-11-09 06:51:49,180 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f319aca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:51:49, skipping insertion in model container [2024-11-09 06:51:49,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:44" (2/3) ... [2024-11-09 06:51:49,181 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f319aca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:51:49, skipping insertion in model container [2024-11-09 06:51:49,183 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:51:49" (3/3) ... [2024-11-09 06:51:49,184 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2024-11-09 06:51:49,204 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:51:49,204 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-09 06:51:49,325 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:51:49,336 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=FINITE_AUTOMATA, 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;@17c0a07b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:51:49,336 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-09 06:51:49,347 INFO L276 IsEmpty]: Start isEmpty. Operand has 1134 states, 1127 states have (on average 1.7870452528837621) internal successors, (2014), 1133 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:49,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-09 06:51:49,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:51:49,379 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] [2024-11-09 06:51:49,380 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:51:49,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:49,386 INFO L85 PathProgramCache]: Analyzing trace with hash 440971975, now seen corresponding path program 1 times [2024-11-09 06:51:49,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:51:49,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596945369] [2024-11-09 06:51:49,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:49,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:49,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:50,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:50,186 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:51:50,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596945369] [2024-11-09 06:51:50,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596945369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:50,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:50,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:51:50,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546783989] [2024-11-09 06:51:50,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:50,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:51:50,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:51:50,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:51:50,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:51:50,235 INFO L87 Difference]: Start difference. First operand has 1134 states, 1127 states have (on average 1.7870452528837621) internal successors, (2014), 1133 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:51,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:51:51,873 INFO L93 Difference]: Finished difference Result 2051 states and 3535 transitions. [2024-11-09 06:51:51,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:51:51,876 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2024-11-09 06:51:51,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:51:51,905 INFO L225 Difference]: With dead ends: 2051 [2024-11-09 06:51:51,905 INFO L226 Difference]: Without dead ends: 1335 [2024-11-09 06:51:51,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:51:51,919 INFO L432 NwaCegarLoop]: 1068 mSDtfsCounter, 6274 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6274 SdHoareTripleChecker+Valid, 1399 SdHoareTripleChecker+Invalid, 986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:51:51,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6274 Valid, 1399 Invalid, 986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 06:51:51,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2024-11-09 06:51:52,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 1321. [2024-11-09 06:51:52,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1321 states, 1315 states have (on average 1.2631178707224335) internal successors, (1661), 1320 states have internal predecessors, (1661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:52,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1321 states to 1321 states and 1661 transitions. [2024-11-09 06:51:52,034 INFO L78 Accepts]: Start accepts. Automaton has 1321 states and 1661 transitions. Word has length 51 [2024-11-09 06:51:52,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:51:52,035 INFO L471 AbstractCegarLoop]: Abstraction has 1321 states and 1661 transitions. [2024-11-09 06:51:52,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:52,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1321 states and 1661 transitions. [2024-11-09 06:51:52,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-09 06:51:52,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:51:52,040 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] [2024-11-09 06:51:52,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:51:52,041 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:51:52,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:52,043 INFO L85 PathProgramCache]: Analyzing trace with hash -230979491, now seen corresponding path program 1 times [2024-11-09 06:51:52,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:51:52,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231691363] [2024-11-09 06:51:52,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:52,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:52,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:52,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:52,334 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:51:52,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231691363] [2024-11-09 06:51:52,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231691363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:52,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:52,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:51:52,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715915430] [2024-11-09 06:51:52,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:52,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:51:52,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:51:52,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:51:52,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:51:52,341 INFO L87 Difference]: Start difference. First operand 1321 states and 1661 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:53,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:51:53,412 INFO L93 Difference]: Finished difference Result 2410 states and 3059 transitions. [2024-11-09 06:51:53,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:51:53,413 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2024-11-09 06:51:53,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:51:53,418 INFO L225 Difference]: With dead ends: 2410 [2024-11-09 06:51:53,418 INFO L226 Difference]: Without dead ends: 1629 [2024-11-09 06:51:53,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:51:53,421 INFO L432 NwaCegarLoop]: 577 mSDtfsCounter, 3954 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3954 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:51:53,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3954 Valid, 791 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 06:51:53,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1629 states. [2024-11-09 06:51:53,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1629 to 1619. [2024-11-09 06:51:53,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1619 states, 1613 states have (on average 1.2665840049597024) internal successors, (2043), 1618 states have internal predecessors, (2043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:53,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 2043 transitions. [2024-11-09 06:51:53,507 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 2043 transitions. Word has length 51 [2024-11-09 06:51:53,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:51:53,509 INFO L471 AbstractCegarLoop]: Abstraction has 1619 states and 2043 transitions. [2024-11-09 06:51:53,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:53,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 2043 transitions. [2024-11-09 06:51:53,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-09 06:51:53,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:51:53,513 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] [2024-11-09 06:51:53,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:51:53,514 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:51:53,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:53,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1941934323, now seen corresponding path program 1 times [2024-11-09 06:51:53,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:51:53,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005803270] [2024-11-09 06:51:53,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:53,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:53,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:53,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:53,729 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:51:53,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005803270] [2024-11-09 06:51:53,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005803270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:53,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:53,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:51:53,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131607605] [2024-11-09 06:51:53,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:53,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:51:53,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:51:53,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:51:53,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:51:53,732 INFO L87 Difference]: Start difference. First operand 1619 states and 2043 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:54,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:51:54,732 INFO L93 Difference]: Finished difference Result 3140 states and 3984 transitions. [2024-11-09 06:51:54,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:51:54,733 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2024-11-09 06:51:54,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:51:54,740 INFO L225 Difference]: With dead ends: 3140 [2024-11-09 06:51:54,740 INFO L226 Difference]: Without dead ends: 2338 [2024-11-09 06:51:54,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:51:54,743 INFO L432 NwaCegarLoop]: 496 mSDtfsCounter, 3584 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3584 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:51:54,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3584 Valid, 765 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 06:51:54,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2338 states. [2024-11-09 06:51:54,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2338 to 2332. [2024-11-09 06:51:54,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2332 states, 2326 states have (on average 1.2519346517626828) internal successors, (2912), 2331 states have internal predecessors, (2912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:54,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2332 states to 2332 states and 2912 transitions. [2024-11-09 06:51:54,804 INFO L78 Accepts]: Start accepts. Automaton has 2332 states and 2912 transitions. Word has length 51 [2024-11-09 06:51:54,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:51:54,805 INFO L471 AbstractCegarLoop]: Abstraction has 2332 states and 2912 transitions. [2024-11-09 06:51:54,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:54,805 INFO L276 IsEmpty]: Start isEmpty. Operand 2332 states and 2912 transitions. [2024-11-09 06:51:54,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-09 06:51:54,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:51:54,808 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:54,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:51:54,809 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:51:54,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:54,809 INFO L85 PathProgramCache]: Analyzing trace with hash -274476207, now seen corresponding path program 1 times [2024-11-09 06:51:54,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:51:54,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730041303] [2024-11-09 06:51:54,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:54,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:54,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:55,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:55,462 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:51:55,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730041303] [2024-11-09 06:51:55,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730041303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:55,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:55,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 06:51:55,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48468726] [2024-11-09 06:51:55,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:55,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:51:55,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:51:55,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:51:55,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:51:55,467 INFO L87 Difference]: Start difference. First operand 2332 states and 2912 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:57,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:51:57,544 INFO L93 Difference]: Finished difference Result 3903 states and 4975 transitions. [2024-11-09 06:51:57,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 06:51:57,545 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-11-09 06:51:57,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:51:57,555 INFO L225 Difference]: With dead ends: 3903 [2024-11-09 06:51:57,556 INFO L226 Difference]: Without dead ends: 3539 [2024-11-09 06:51:57,557 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-09 06:51:57,558 INFO L432 NwaCegarLoop]: 592 mSDtfsCounter, 2888 mSDsluCounter, 2420 mSDsCounter, 0 mSdLazyCounter, 2702 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2888 SdHoareTripleChecker+Valid, 3012 SdHoareTripleChecker+Invalid, 2731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:51:57,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2888 Valid, 3012 Invalid, 2731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2702 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 06:51:57,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3539 states. [2024-11-09 06:51:57,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3539 to 2332. [2024-11-09 06:51:57,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2332 states, 2326 states have (on average 1.2515047291487533) internal successors, (2911), 2331 states have internal predecessors, (2911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:57,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2332 states to 2332 states and 2911 transitions. [2024-11-09 06:51:57,633 INFO L78 Accepts]: Start accepts. Automaton has 2332 states and 2911 transitions. Word has length 53 [2024-11-09 06:51:57,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:51:57,634 INFO L471 AbstractCegarLoop]: Abstraction has 2332 states and 2911 transitions. [2024-11-09 06:51:57,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:57,634 INFO L276 IsEmpty]: Start isEmpty. Operand 2332 states and 2911 transitions. [2024-11-09 06:51:57,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-09 06:51:57,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:51:57,638 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:57,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:51:57,638 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:51:57,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:57,639 INFO L85 PathProgramCache]: Analyzing trace with hash -603870735, now seen corresponding path program 1 times [2024-11-09 06:51:57,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:51:57,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201358926] [2024-11-09 06:51:57,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:57,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:57,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:57,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:57,986 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:51:57,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201358926] [2024-11-09 06:51:57,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201358926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:57,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:57,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 06:51:57,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70516779] [2024-11-09 06:51:57,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:57,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:51:57,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:51:57,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:51:57,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:51:57,989 INFO L87 Difference]: Start difference. First operand 2332 states and 2911 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:59,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:51:59,700 INFO L93 Difference]: Finished difference Result 3199 states and 4015 transitions. [2024-11-09 06:51:59,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 06:51:59,701 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-11-09 06:51:59,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:51:59,712 INFO L225 Difference]: With dead ends: 3199 [2024-11-09 06:51:59,713 INFO L226 Difference]: Without dead ends: 3193 [2024-11-09 06:51:59,715 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-11-09 06:51:59,717 INFO L432 NwaCegarLoop]: 559 mSDtfsCounter, 2362 mSDsluCounter, 1744 mSDsCounter, 0 mSdLazyCounter, 2148 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2362 SdHoareTripleChecker+Valid, 2303 SdHoareTripleChecker+Invalid, 2176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:51:59,719 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2362 Valid, 2303 Invalid, 2176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2148 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 06:51:59,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3193 states. [2024-11-09 06:51:59,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3193 to 2332. [2024-11-09 06:51:59,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2332 states, 2326 states have (on average 1.2510748065348238) internal successors, (2910), 2331 states have internal predecessors, (2910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:59,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2332 states to 2332 states and 2910 transitions. [2024-11-09 06:51:59,790 INFO L78 Accepts]: Start accepts. Automaton has 2332 states and 2910 transitions. Word has length 53 [2024-11-09 06:51:59,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:51:59,792 INFO L471 AbstractCegarLoop]: Abstraction has 2332 states and 2910 transitions. [2024-11-09 06:51:59,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:59,792 INFO L276 IsEmpty]: Start isEmpty. Operand 2332 states and 2910 transitions. [2024-11-09 06:51:59,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-09 06:51:59,796 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:51:59,796 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:59,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 06:51:59,797 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:51:59,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:59,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1273862225, now seen corresponding path program 1 times [2024-11-09 06:51:59,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:51:59,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644674496] [2024-11-09 06:51:59,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:59,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:59,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:00,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:00,172 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:52:00,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644674496] [2024-11-09 06:52:00,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644674496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:00,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:00,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 06:52:00,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385651880] [2024-11-09 06:52:00,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:00,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:52:00,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:52:00,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:52:00,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:52:00,174 INFO L87 Difference]: Start difference. First operand 2332 states and 2910 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:01,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:01,362 INFO L93 Difference]: Finished difference Result 3321 states and 4195 transitions. [2024-11-09 06:52:01,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:52:01,364 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-11-09 06:52:01,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:01,372 INFO L225 Difference]: With dead ends: 3321 [2024-11-09 06:52:01,372 INFO L226 Difference]: Without dead ends: 2813 [2024-11-09 06:52:01,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:52:01,375 INFO L432 NwaCegarLoop]: 482 mSDtfsCounter, 3385 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3385 SdHoareTripleChecker+Valid, 1648 SdHoareTripleChecker+Invalid, 1535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:01,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3385 Valid, 1648 Invalid, 1535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1527 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 06:52:01,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2813 states. [2024-11-09 06:52:01,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2813 to 2332. [2024-11-09 06:52:01,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2332 states, 2326 states have (on average 1.2506448839208943) internal successors, (2909), 2331 states have internal predecessors, (2909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:01,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2332 states to 2332 states and 2909 transitions. [2024-11-09 06:52:01,428 INFO L78 Accepts]: Start accepts. Automaton has 2332 states and 2909 transitions. Word has length 53 [2024-11-09 06:52:01,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:01,428 INFO L471 AbstractCegarLoop]: Abstraction has 2332 states and 2909 transitions. [2024-11-09 06:52:01,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:01,429 INFO L276 IsEmpty]: Start isEmpty. Operand 2332 states and 2909 transitions. [2024-11-09 06:52:01,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-09 06:52:01,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:01,432 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] [2024-11-09 06:52:01,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 06:52:01,432 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:52:01,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:01,433 INFO L85 PathProgramCache]: Analyzing trace with hash -843774436, now seen corresponding path program 1 times [2024-11-09 06:52:01,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:52:01,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504565712] [2024-11-09 06:52:01,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:01,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:01,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:01,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:01,520 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:52:01,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504565712] [2024-11-09 06:52:01,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504565712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:01,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:01,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:52:01,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562805020] [2024-11-09 06:52:01,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:01,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:52:01,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:52:01,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:52:01,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:52:01,523 INFO L87 Difference]: Start difference. First operand 2332 states and 2909 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 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) [2024-11-09 06:52:01,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:01,639 INFO L93 Difference]: Finished difference Result 3200 states and 4082 transitions. [2024-11-09 06:52:01,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:52:01,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 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 54 [2024-11-09 06:52:01,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:01,645 INFO L225 Difference]: With dead ends: 3200 [2024-11-09 06:52:01,646 INFO L226 Difference]: Without dead ends: 2033 [2024-11-09 06:52:01,647 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 [2024-11-09 06:52:01,648 INFO L432 NwaCegarLoop]: 881 mSDtfsCounter, 559 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:01,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 1208 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:52:01,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2033 states. [2024-11-09 06:52:01,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2033 to 2031. [2024-11-09 06:52:01,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2031 states, 2025 states have (on average 1.2320987654320987) internal successors, (2495), 2030 states have internal predecessors, (2495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:01,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 2495 transitions. [2024-11-09 06:52:01,695 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 2495 transitions. Word has length 54 [2024-11-09 06:52:01,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:01,696 INFO L471 AbstractCegarLoop]: Abstraction has 2031 states and 2495 transitions. [2024-11-09 06:52:01,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 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) [2024-11-09 06:52:01,697 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 2495 transitions. [2024-11-09 06:52:01,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-09 06:52:01,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:01,699 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] [2024-11-09 06:52:01,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 06:52:01,699 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:52:01,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:01,700 INFO L85 PathProgramCache]: Analyzing trace with hash 586810076, now seen corresponding path program 1 times [2024-11-09 06:52:01,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:52:01,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066710094] [2024-11-09 06:52:01,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:01,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:01,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:01,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:01,801 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:52:01,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066710094] [2024-11-09 06:52:01,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066710094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:01,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:01,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:52:01,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078513005] [2024-11-09 06:52:01,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:01,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:52:01,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:52:01,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:52:01,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:52:01,805 INFO L87 Difference]: Start difference. First operand 2031 states and 2495 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 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) [2024-11-09 06:52:01,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:01,911 INFO L93 Difference]: Finished difference Result 3121 states and 4006 transitions. [2024-11-09 06:52:01,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:52:01,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 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 54 [2024-11-09 06:52:01,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:01,919 INFO L225 Difference]: With dead ends: 3121 [2024-11-09 06:52:01,919 INFO L226 Difference]: Without dead ends: 2316 [2024-11-09 06:52:01,921 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 [2024-11-09 06:52:01,922 INFO L432 NwaCegarLoop]: 855 mSDtfsCounter, 421 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:01,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 1294 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:52:01,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2316 states. [2024-11-09 06:52:01,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2316 to 2314. [2024-11-09 06:52:01,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2314 states, 2308 states have (on average 1.2608318890814558) internal successors, (2910), 2313 states have internal predecessors, (2910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:01,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 2910 transitions. [2024-11-09 06:52:01,978 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 2910 transitions. Word has length 54 [2024-11-09 06:52:01,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:01,978 INFO L471 AbstractCegarLoop]: Abstraction has 2314 states and 2910 transitions. [2024-11-09 06:52:01,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 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) [2024-11-09 06:52:01,979 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 2910 transitions. [2024-11-09 06:52:01,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-09 06:52:01,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:01,981 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] [2024-11-09 06:52:01,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 06:52:01,982 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:52:01,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:01,982 INFO L85 PathProgramCache]: Analyzing trace with hash -117726025, now seen corresponding path program 1 times [2024-11-09 06:52:01,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:52:01,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056733738] [2024-11-09 06:52:01,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:01,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:02,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:02,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:02,103 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:52:02,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056733738] [2024-11-09 06:52:02,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056733738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:02,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:02,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:52:02,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283977906] [2024-11-09 06:52:02,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:02,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:52:02,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:52:02,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:52:02,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:52:02,106 INFO L87 Difference]: Start difference. First operand 2314 states and 2910 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 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) [2024-11-09 06:52:02,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:02,204 INFO L93 Difference]: Finished difference Result 4188 states and 5469 transitions. [2024-11-09 06:52:02,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:52:02,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 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 54 [2024-11-09 06:52:02,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:02,213 INFO L225 Difference]: With dead ends: 4188 [2024-11-09 06:52:02,214 INFO L226 Difference]: Without dead ends: 2957 [2024-11-09 06:52:02,216 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 [2024-11-09 06:52:02,217 INFO L432 NwaCegarLoop]: 850 mSDtfsCounter, 383 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 1317 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:02,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 1317 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:52:02,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2957 states. [2024-11-09 06:52:02,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2957 to 2955. [2024-11-09 06:52:02,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2955 states, 2949 states have (on average 1.276703967446592) internal successors, (3765), 2954 states have internal predecessors, (3765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:02,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2955 states to 2955 states and 3765 transitions. [2024-11-09 06:52:02,291 INFO L78 Accepts]: Start accepts. Automaton has 2955 states and 3765 transitions. Word has length 54 [2024-11-09 06:52:02,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:02,291 INFO L471 AbstractCegarLoop]: Abstraction has 2955 states and 3765 transitions. [2024-11-09 06:52:02,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 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) [2024-11-09 06:52:02,292 INFO L276 IsEmpty]: Start isEmpty. Operand 2955 states and 3765 transitions. [2024-11-09 06:52:02,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 06:52:02,295 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:02,295 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] [2024-11-09 06:52:02,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 06:52:02,297 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:52:02,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:02,301 INFO L85 PathProgramCache]: Analyzing trace with hash -812769836, now seen corresponding path program 1 times [2024-11-09 06:52:02,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:52:02,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186526827] [2024-11-09 06:52:02,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:02,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:02,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:02,412 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:52:02,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186526827] [2024-11-09 06:52:02,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186526827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:02,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:02,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:52:02,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023480765] [2024-11-09 06:52:02,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:02,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:52:02,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:52:02,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:52:02,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:52:02,415 INFO L87 Difference]: Start difference. First operand 2955 states and 3765 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:02,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:02,584 INFO L93 Difference]: Finished difference Result 5610 states and 7233 transitions. [2024-11-09 06:52:02,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:52:02,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2024-11-09 06:52:02,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:02,597 INFO L225 Difference]: With dead ends: 5610 [2024-11-09 06:52:02,598 INFO L226 Difference]: Without dead ends: 3205 [2024-11-09 06:52:02,600 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 [2024-11-09 06:52:02,601 INFO L432 NwaCegarLoop]: 631 mSDtfsCounter, 620 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:02,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 880 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:52:02,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3205 states. [2024-11-09 06:52:02,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3205 to 2576. [2024-11-09 06:52:02,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2576 states, 2571 states have (on average 1.2843251653053287) internal successors, (3302), 2575 states have internal predecessors, (3302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:02,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2576 states to 2576 states and 3302 transitions. [2024-11-09 06:52:02,652 INFO L78 Accepts]: Start accepts. Automaton has 2576 states and 3302 transitions. Word has length 55 [2024-11-09 06:52:02,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:02,652 INFO L471 AbstractCegarLoop]: Abstraction has 2576 states and 3302 transitions. [2024-11-09 06:52:02,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:02,653 INFO L276 IsEmpty]: Start isEmpty. Operand 2576 states and 3302 transitions. [2024-11-09 06:52:02,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 06:52:02,654 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:02,655 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] [2024-11-09 06:52:02,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 06:52:02,655 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:52:02,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:02,656 INFO L85 PathProgramCache]: Analyzing trace with hash 930333266, now seen corresponding path program 1 times [2024-11-09 06:52:02,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:52:02,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273953389] [2024-11-09 06:52:02,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:02,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:02,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:03,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:03,515 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:52:03,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273953389] [2024-11-09 06:52:03,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273953389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:03,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:03,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-09 06:52:03,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209361120] [2024-11-09 06:52:03,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:03,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 06:52:03,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:52:03,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 06:52:03,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-09 06:52:03,517 INFO L87 Difference]: Start difference. First operand 2576 states and 3302 transitions. Second operand has 11 states, 11 states have (on average 5.0) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:04,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:04,471 INFO L93 Difference]: Finished difference Result 4247 states and 5465 transitions. [2024-11-09 06:52:04,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 06:52:04,472 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2024-11-09 06:52:04,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:04,489 INFO L225 Difference]: With dead ends: 4247 [2024-11-09 06:52:04,495 INFO L226 Difference]: Without dead ends: 4004 [2024-11-09 06:52:04,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2024-11-09 06:52:04,498 INFO L432 NwaCegarLoop]: 672 mSDtfsCounter, 2875 mSDsluCounter, 2250 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2875 SdHoareTripleChecker+Valid, 2922 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:04,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2875 Valid, 2922 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 06:52:04,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4004 states. [2024-11-09 06:52:04,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4004 to 2575. [2024-11-09 06:52:04,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2575 states, 2570 states have (on average 1.284046692607004) internal successors, (3300), 2574 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:04,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2575 states to 2575 states and 3300 transitions. [2024-11-09 06:52:04,553 INFO L78 Accepts]: Start accepts. Automaton has 2575 states and 3300 transitions. Word has length 55 [2024-11-09 06:52:04,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:04,554 INFO L471 AbstractCegarLoop]: Abstraction has 2575 states and 3300 transitions. [2024-11-09 06:52:04,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:04,554 INFO L276 IsEmpty]: Start isEmpty. Operand 2575 states and 3300 transitions. [2024-11-09 06:52:04,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 06:52:04,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:04,557 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:04,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 06:52:04,558 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:52:04,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:04,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1102645022, now seen corresponding path program 1 times [2024-11-09 06:52:04,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:52:04,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067491944] [2024-11-09 06:52:04,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:04,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:04,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:04,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:04,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:52:04,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067491944] [2024-11-09 06:52:04,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067491944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:04,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:04,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:52:04,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050688554] [2024-11-09 06:52:04,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:04,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:52:04,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:52:04,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:52:04,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:52:04,644 INFO L87 Difference]: Start difference. First operand 2575 states and 3300 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:04,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:04,740 INFO L93 Difference]: Finished difference Result 4741 states and 6158 transitions. [2024-11-09 06:52:04,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:52:04,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2024-11-09 06:52:04,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:04,746 INFO L225 Difference]: With dead ends: 4741 [2024-11-09 06:52:04,746 INFO L226 Difference]: Without dead ends: 2604 [2024-11-09 06:52:04,749 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 [2024-11-09 06:52:04,749 INFO L432 NwaCegarLoop]: 514 mSDtfsCounter, 478 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:04,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 697 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:52:04,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2604 states. [2024-11-09 06:52:04,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2604 to 2277. [2024-11-09 06:52:04,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2277 states, 2273 states have (on average 1.2864056313242411) internal successors, (2924), 2276 states have internal predecessors, (2924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:04,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2277 states to 2277 states and 2924 transitions. [2024-11-09 06:52:04,788 INFO L78 Accepts]: Start accepts. Automaton has 2277 states and 2924 transitions. Word has length 55 [2024-11-09 06:52:04,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:04,788 INFO L471 AbstractCegarLoop]: Abstraction has 2277 states and 2924 transitions. [2024-11-09 06:52:04,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:04,789 INFO L276 IsEmpty]: Start isEmpty. Operand 2277 states and 2924 transitions. [2024-11-09 06:52:04,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 06:52:04,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:04,790 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] [2024-11-09 06:52:04,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 06:52:04,791 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:52:04,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:04,791 INFO L85 PathProgramCache]: Analyzing trace with hash -130351128, now seen corresponding path program 1 times [2024-11-09 06:52:04,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:52:04,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226575826] [2024-11-09 06:52:04,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:04,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:04,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:04,941 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:52:04,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226575826] [2024-11-09 06:52:04,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226575826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:04,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:04,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:52:04,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414223497] [2024-11-09 06:52:04,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:04,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:52:04,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:52:04,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:52:04,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:52:04,943 INFO L87 Difference]: Start difference. First operand 2277 states and 2924 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:05,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:05,059 INFO L93 Difference]: Finished difference Result 3819 states and 4975 transitions. [2024-11-09 06:52:05,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:52:05,060 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 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 [2024-11-09 06:52:05,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:05,063 INFO L225 Difference]: With dead ends: 3819 [2024-11-09 06:52:05,063 INFO L226 Difference]: Without dead ends: 2054 [2024-11-09 06:52:05,065 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:52:05,066 INFO L432 NwaCegarLoop]: 459 mSDtfsCounter, 976 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:05,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 723 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:52:05,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2054 states. [2024-11-09 06:52:05,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2054 to 2050. [2024-11-09 06:52:05,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2050 states, 2046 states have (on average 1.2771260997067448) internal successors, (2613), 2049 states have internal predecessors, (2613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:05,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2050 states to 2050 states and 2613 transitions. [2024-11-09 06:52:05,129 INFO L78 Accepts]: Start accepts. Automaton has 2050 states and 2613 transitions. Word has length 56 [2024-11-09 06:52:05,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:05,130 INFO L471 AbstractCegarLoop]: Abstraction has 2050 states and 2613 transitions. [2024-11-09 06:52:05,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:05,131 INFO L276 IsEmpty]: Start isEmpty. Operand 2050 states and 2613 transitions. [2024-11-09 06:52:05,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 06:52:05,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:05,132 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] [2024-11-09 06:52:05,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 06:52:05,133 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:52:05,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:05,134 INFO L85 PathProgramCache]: Analyzing trace with hash -375785998, now seen corresponding path program 1 times [2024-11-09 06:52:05,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:52:05,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542644621] [2024-11-09 06:52:05,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:05,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:05,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:06,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:06,396 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:52:06,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542644621] [2024-11-09 06:52:06,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542644621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:06,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:06,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-09 06:52:06,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431186310] [2024-11-09 06:52:06,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:06,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 06:52:06,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:52:06,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 06:52:06,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2024-11-09 06:52:06,399 INFO L87 Difference]: Start difference. First operand 2050 states and 2613 transitions. Second operand has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:08,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:08,659 INFO L93 Difference]: Finished difference Result 3105 states and 3915 transitions. [2024-11-09 06:52:08,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 06:52:08,659 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 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 [2024-11-09 06:52:08,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:08,662 INFO L225 Difference]: With dead ends: 3105 [2024-11-09 06:52:08,663 INFO L226 Difference]: Without dead ends: 3101 [2024-11-09 06:52:08,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=215, Invalid=841, Unknown=0, NotChecked=0, Total=1056 [2024-11-09 06:52:08,664 INFO L432 NwaCegarLoop]: 511 mSDtfsCounter, 2495 mSDsluCounter, 4868 mSDsCounter, 0 mSdLazyCounter, 1834 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2495 SdHoareTripleChecker+Valid, 5379 SdHoareTripleChecker+Invalid, 1840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:08,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2495 Valid, 5379 Invalid, 1840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1834 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 06:52:08,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3101 states. [2024-11-09 06:52:08,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3101 to 2058. [2024-11-09 06:52:08,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2058 states, 2054 states have (on average 1.277020447906524) internal successors, (2623), 2057 states have internal predecessors, (2623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:08,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2058 states to 2058 states and 2623 transitions. [2024-11-09 06:52:08,702 INFO L78 Accepts]: Start accepts. Automaton has 2058 states and 2623 transitions. Word has length 56 [2024-11-09 06:52:08,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:08,703 INFO L471 AbstractCegarLoop]: Abstraction has 2058 states and 2623 transitions. [2024-11-09 06:52:08,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:08,703 INFO L276 IsEmpty]: Start isEmpty. Operand 2058 states and 2623 transitions. [2024-11-09 06:52:08,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 06:52:08,704 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:08,705 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] [2024-11-09 06:52:08,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 06:52:08,705 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:52:08,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:08,706 INFO L85 PathProgramCache]: Analyzing trace with hash -796878175, now seen corresponding path program 1 times [2024-11-09 06:52:08,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:52:08,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527067213] [2024-11-09 06:52:08,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:08,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:08,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:09,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:09,503 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:52:09,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527067213] [2024-11-09 06:52:09,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527067213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:09,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:09,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:52:09,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298732525] [2024-11-09 06:52:09,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:09,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:52:09,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:52:09,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:52:09,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:52:09,505 INFO L87 Difference]: Start difference. First operand 2058 states and 2623 transitions. Second operand has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:11,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:11,533 INFO L93 Difference]: Finished difference Result 5292 states and 6766 transitions. [2024-11-09 06:52:11,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-09 06:52:11,534 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 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 [2024-11-09 06:52:11,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:11,541 INFO L225 Difference]: With dead ends: 5292 [2024-11-09 06:52:11,541 INFO L226 Difference]: Without dead ends: 5280 [2024-11-09 06:52:11,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=190, Invalid=622, Unknown=0, NotChecked=0, Total=812 [2024-11-09 06:52:11,543 INFO L432 NwaCegarLoop]: 701 mSDtfsCounter, 2616 mSDsluCounter, 4291 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2616 SdHoareTripleChecker+Valid, 4992 SdHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:11,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2616 Valid, 4992 Invalid, 1151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1135 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 06:52:11,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5280 states. [2024-11-09 06:52:11,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5280 to 2046. [2024-11-09 06:52:11,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2046 states, 2043 states have (on average 1.277533039647577) internal successors, (2610), 2045 states have internal predecessors, (2610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:11,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2046 states to 2046 states and 2610 transitions. [2024-11-09 06:52:11,598 INFO L78 Accepts]: Start accepts. Automaton has 2046 states and 2610 transitions. Word has length 56 [2024-11-09 06:52:11,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:11,598 INFO L471 AbstractCegarLoop]: Abstraction has 2046 states and 2610 transitions. [2024-11-09 06:52:11,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:11,599 INFO L276 IsEmpty]: Start isEmpty. Operand 2046 states and 2610 transitions. [2024-11-09 06:52:11,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 06:52:11,600 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:11,600 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] [2024-11-09 06:52:11,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 06:52:11,601 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:52:11,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:11,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1266882465, now seen corresponding path program 1 times [2024-11-09 06:52:11,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:52:11,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961637552] [2024-11-09 06:52:11,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:11,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:12,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:12,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:52:12,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961637552] [2024-11-09 06:52:12,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961637552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:12,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:12,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-09 06:52:12,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807653210] [2024-11-09 06:52:12,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:12,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 06:52:12,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:52:12,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 06:52:12,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2024-11-09 06:52:12,985 INFO L87 Difference]: Start difference. First operand 2046 states and 2610 transitions. Second operand has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:15,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:15,049 INFO L93 Difference]: Finished difference Result 3150 states and 3993 transitions. [2024-11-09 06:52:15,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 06:52:15,049 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 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 [2024-11-09 06:52:15,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:15,054 INFO L225 Difference]: With dead ends: 3150 [2024-11-09 06:52:15,054 INFO L226 Difference]: Without dead ends: 3146 [2024-11-09 06:52:15,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=216, Invalid=974, Unknown=0, NotChecked=0, Total=1190 [2024-11-09 06:52:15,057 INFO L432 NwaCegarLoop]: 485 mSDtfsCounter, 3553 mSDsluCounter, 4526 mSDsCounter, 0 mSdLazyCounter, 1825 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3553 SdHoareTripleChecker+Valid, 5011 SdHoareTripleChecker+Invalid, 1830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:15,057 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3553 Valid, 5011 Invalid, 1830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1825 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 06:52:15,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3146 states. [2024-11-09 06:52:15,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3146 to 2059. [2024-11-09 06:52:15,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2059 states, 2056 states have (on average 1.2782101167315174) internal successors, (2628), 2058 states have internal predecessors, (2628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:15,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2059 states to 2059 states and 2628 transitions. [2024-11-09 06:52:15,100 INFO L78 Accepts]: Start accepts. Automaton has 2059 states and 2628 transitions. Word has length 56 [2024-11-09 06:52:15,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:15,101 INFO L471 AbstractCegarLoop]: Abstraction has 2059 states and 2628 transitions. [2024-11-09 06:52:15,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:15,101 INFO L276 IsEmpty]: Start isEmpty. Operand 2059 states and 2628 transitions. [2024-11-09 06:52:15,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-09 06:52:15,103 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:15,103 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:15,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 06:52:15,103 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:52:15,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:15,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1837460674, now seen corresponding path program 1 times [2024-11-09 06:52:15,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:52:15,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612154327] [2024-11-09 06:52:15,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:15,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:15,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:16,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:16,176 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:52:16,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612154327] [2024-11-09 06:52:16,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612154327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:16,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:16,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 06:52:16,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085462464] [2024-11-09 06:52:16,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:16,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 06:52:16,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:52:16,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 06:52:16,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2024-11-09 06:52:16,178 INFO L87 Difference]: Start difference. First operand 2059 states and 2628 transitions. Second operand has 16 states, 16 states have (on average 3.5625) internal successors, (57), 15 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) [2024-11-09 06:52:18,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:18,254 INFO L93 Difference]: Finished difference Result 2588 states and 3286 transitions. [2024-11-09 06:52:18,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 06:52:18,255 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.5625) internal successors, (57), 15 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 [2024-11-09 06:52:18,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:18,260 INFO L225 Difference]: With dead ends: 2588 [2024-11-09 06:52:18,260 INFO L226 Difference]: Without dead ends: 2584 [2024-11-09 06:52:18,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=179, Invalid=577, Unknown=0, NotChecked=0, Total=756 [2024-11-09 06:52:18,262 INFO L432 NwaCegarLoop]: 490 mSDtfsCounter, 1801 mSDsluCounter, 4870 mSDsCounter, 0 mSdLazyCounter, 1761 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1801 SdHoareTripleChecker+Valid, 5360 SdHoareTripleChecker+Invalid, 1766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:18,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1801 Valid, 5360 Invalid, 1766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1761 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 06:52:18,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2584 states. [2024-11-09 06:52:18,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2584 to 2047. [2024-11-09 06:52:18,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2047 states, 2045 states have (on average 1.278239608801956) internal successors, (2614), 2046 states have internal predecessors, (2614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:18,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2047 states to 2047 states and 2614 transitions. [2024-11-09 06:52:18,313 INFO L78 Accepts]: Start accepts. Automaton has 2047 states and 2614 transitions. Word has length 57 [2024-11-09 06:52:18,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:18,313 INFO L471 AbstractCegarLoop]: Abstraction has 2047 states and 2614 transitions. [2024-11-09 06:52:18,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5625) internal successors, (57), 15 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) [2024-11-09 06:52:18,314 INFO L276 IsEmpty]: Start isEmpty. Operand 2047 states and 2614 transitions. [2024-11-09 06:52:18,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-09 06:52:18,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:18,316 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:18,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 06:52:18,317 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:52:18,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:18,317 INFO L85 PathProgramCache]: Analyzing trace with hash 923154397, now seen corresponding path program 1 times [2024-11-09 06:52:18,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:52:18,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881816935] [2024-11-09 06:52:18,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:18,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:19,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:19,029 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:52:19,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881816935] [2024-11-09 06:52:19,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881816935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:19,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:19,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-09 06:52:19,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714960360] [2024-11-09 06:52:19,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:19,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 06:52:19,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:52:19,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 06:52:19,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-09 06:52:19,032 INFO L87 Difference]: Start difference. First operand 2047 states and 2614 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 10 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) [2024-11-09 06:52:20,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:20,019 INFO L93 Difference]: Finished difference Result 3547 states and 4547 transitions. [2024-11-09 06:52:20,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 06:52:20,020 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 10 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 [2024-11-09 06:52:20,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:20,026 INFO L225 Difference]: With dead ends: 3547 [2024-11-09 06:52:20,027 INFO L226 Difference]: Without dead ends: 3275 [2024-11-09 06:52:20,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2024-11-09 06:52:20,029 INFO L432 NwaCegarLoop]: 529 mSDtfsCounter, 995 mSDsluCounter, 2542 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 3071 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:20,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 3071 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 06:52:20,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3275 states. [2024-11-09 06:52:20,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3275 to 2009. [2024-11-09 06:52:20,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2009 states, 2008 states have (on average 1.2778884462151394) internal successors, (2566), 2008 states have internal predecessors, (2566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:20,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2009 states to 2009 states and 2566 transitions. [2024-11-09 06:52:20,072 INFO L78 Accepts]: Start accepts. Automaton has 2009 states and 2566 transitions. Word has length 57 [2024-11-09 06:52:20,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:20,072 INFO L471 AbstractCegarLoop]: Abstraction has 2009 states and 2566 transitions. [2024-11-09 06:52:20,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 10 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) [2024-11-09 06:52:20,072 INFO L276 IsEmpty]: Start isEmpty. Operand 2009 states and 2566 transitions. [2024-11-09 06:52:20,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-09 06:52:20,074 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:20,074 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] [2024-11-09 06:52:20,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 06:52:20,075 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:52:20,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:20,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1401164501, now seen corresponding path program 1 times [2024-11-09 06:52:20,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:52:20,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628972643] [2024-11-09 06:52:20,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:20,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:20,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:20,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:20,239 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:52:20,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628972643] [2024-11-09 06:52:20,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628972643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:20,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:20,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:52:20,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540781145] [2024-11-09 06:52:20,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:20,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:52:20,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:52:20,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:52:20,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:52:20,242 INFO L87 Difference]: Start difference. First operand 2009 states and 2566 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:20,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:20,333 INFO L93 Difference]: Finished difference Result 4461 states and 5838 transitions. [2024-11-09 06:52:20,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:52:20,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-09 06:52:20,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:20,339 INFO L225 Difference]: With dead ends: 4461 [2024-11-09 06:52:20,339 INFO L226 Difference]: Without dead ends: 3023 [2024-11-09 06:52:20,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:52:20,342 INFO L432 NwaCegarLoop]: 446 mSDtfsCounter, 193 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:20,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 688 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:52:20,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3023 states. [2024-11-09 06:52:20,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3023 to 2747. [2024-11-09 06:52:20,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2747 states, 2746 states have (on average 1.2767662053896578) internal successors, (3506), 2746 states have internal predecessors, (3506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:20,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2747 states to 2747 states and 3506 transitions. [2024-11-09 06:52:20,421 INFO L78 Accepts]: Start accepts. Automaton has 2747 states and 3506 transitions. Word has length 60 [2024-11-09 06:52:20,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:20,422 INFO L471 AbstractCegarLoop]: Abstraction has 2747 states and 3506 transitions. [2024-11-09 06:52:20,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:20,422 INFO L276 IsEmpty]: Start isEmpty. Operand 2747 states and 3506 transitions. [2024-11-09 06:52:20,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 06:52:20,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:20,424 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:20,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 06:52:20,424 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:52:20,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:20,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1469253499, now seen corresponding path program 1 times [2024-11-09 06:52:20,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:52:20,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706045538] [2024-11-09 06:52:20,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:20,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:20,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:20,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:52:20,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706045538] [2024-11-09 06:52:20,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706045538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:20,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:20,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:52:20,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206437592] [2024-11-09 06:52:20,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:20,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:52:20,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:52:20,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:52:20,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:52:20,858 INFO L87 Difference]: Start difference. First operand 2747 states and 3506 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:21,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:21,238 INFO L93 Difference]: Finished difference Result 5309 states and 6817 transitions. [2024-11-09 06:52:21,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:52:21,239 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 0 states have call successors, (0), 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 [2024-11-09 06:52:21,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:21,247 INFO L225 Difference]: With dead ends: 5309 [2024-11-09 06:52:21,247 INFO L226 Difference]: Without dead ends: 5307 [2024-11-09 06:52:21,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-09 06:52:21,250 INFO L432 NwaCegarLoop]: 416 mSDtfsCounter, 1208 mSDsluCounter, 1716 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 2132 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:21,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1208 Valid, 2132 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:52:21,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5307 states. [2024-11-09 06:52:21,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5307 to 3336. [2024-11-09 06:52:21,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3336 states, 3335 states have (on average 1.2719640179910046) internal successors, (4242), 3335 states have internal predecessors, (4242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:21,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 4242 transitions. [2024-11-09 06:52:21,318 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 4242 transitions. Word has length 65 [2024-11-09 06:52:21,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:21,318 INFO L471 AbstractCegarLoop]: Abstraction has 3336 states and 4242 transitions. [2024-11-09 06:52:21,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:21,318 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 4242 transitions. [2024-11-09 06:52:21,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 06:52:21,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:21,321 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:21,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 06:52:21,321 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:52:21,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:21,322 INFO L85 PathProgramCache]: Analyzing trace with hash 835374526, now seen corresponding path program 1 times [2024-11-09 06:52:21,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:52:21,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207146324] [2024-11-09 06:52:21,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:21,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:21,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:21,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:21,454 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:52:21,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207146324] [2024-11-09 06:52:21,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207146324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:21,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:21,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:52:21,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77842084] [2024-11-09 06:52:21,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:21,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:52:21,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:52:21,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:52:21,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:52:21,457 INFO L87 Difference]: Start difference. First operand 3336 states and 4242 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:21,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:21,551 INFO L93 Difference]: Finished difference Result 6490 states and 8420 transitions. [2024-11-09 06:52:21,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:52:21,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 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 [2024-11-09 06:52:21,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:21,559 INFO L225 Difference]: With dead ends: 6490 [2024-11-09 06:52:21,559 INFO L226 Difference]: Without dead ends: 4459 [2024-11-09 06:52:21,562 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 [2024-11-09 06:52:21,563 INFO L432 NwaCegarLoop]: 463 mSDtfsCounter, 245 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:21,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 658 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:52:21,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4459 states. [2024-11-09 06:52:21,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4459 to 4163. [2024-11-09 06:52:21,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4163 states, 4162 states have (on average 1.2674195098510332) internal successors, (5275), 4162 states have internal predecessors, (5275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:21,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4163 states to 4163 states and 5275 transitions. [2024-11-09 06:52:21,633 INFO L78 Accepts]: Start accepts. Automaton has 4163 states and 5275 transitions. Word has length 65 [2024-11-09 06:52:21,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:21,634 INFO L471 AbstractCegarLoop]: Abstraction has 4163 states and 5275 transitions. [2024-11-09 06:52:21,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:21,634 INFO L276 IsEmpty]: Start isEmpty. Operand 4163 states and 5275 transitions. [2024-11-09 06:52:21,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-09 06:52:21,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:21,638 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:21,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 06:52:21,640 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:52:21,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:21,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1048433134, now seen corresponding path program 1 times [2024-11-09 06:52:21,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:52:21,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030877981] [2024-11-09 06:52:21,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:21,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:22,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:22,127 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:52:22,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030877981] [2024-11-09 06:52:22,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030877981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:22,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:22,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:52:22,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311312331] [2024-11-09 06:52:22,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:22,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:52:22,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:52:22,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:52:22,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:52:22,130 INFO L87 Difference]: Start difference. First operand 4163 states and 5275 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:22,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:22,554 INFO L93 Difference]: Finished difference Result 6758 states and 8610 transitions. [2024-11-09 06:52:22,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:52:22,555 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-09 06:52:22,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:22,567 INFO L225 Difference]: With dead ends: 6758 [2024-11-09 06:52:22,567 INFO L226 Difference]: Without dead ends: 6756 [2024-11-09 06:52:22,569 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-09 06:52:22,570 INFO L432 NwaCegarLoop]: 441 mSDtfsCounter, 761 mSDsluCounter, 2215 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 2656 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:22,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 2656 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:52:22,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6756 states. [2024-11-09 06:52:22,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6756 to 4486. [2024-11-09 06:52:22,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4486 states, 4485 states have (on average 1.2642140468227425) internal successors, (5670), 4485 states have internal predecessors, (5670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:22,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4486 states to 4486 states and 5670 transitions. [2024-11-09 06:52:22,663 INFO L78 Accepts]: Start accepts. Automaton has 4486 states and 5670 transitions. Word has length 71 [2024-11-09 06:52:22,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:22,663 INFO L471 AbstractCegarLoop]: Abstraction has 4486 states and 5670 transitions. [2024-11-09 06:52:22,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:22,664 INFO L276 IsEmpty]: Start isEmpty. Operand 4486 states and 5670 transitions. [2024-11-09 06:52:22,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 06:52:22,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:22,667 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:22,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-09 06:52:22,667 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:52:22,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:22,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1409043330, now seen corresponding path program 1 times [2024-11-09 06:52:22,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:52:22,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449082297] [2024-11-09 06:52:22,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:22,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:22,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:23,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:23,190 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:52:23,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449082297] [2024-11-09 06:52:23,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449082297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:23,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:23,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:52:23,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194365546] [2024-11-09 06:52:23,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:23,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:52:23,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:52:23,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:52:23,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:52:23,194 INFO L87 Difference]: Start difference. First operand 4486 states and 5670 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:23,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:23,533 INFO L93 Difference]: Finished difference Result 6875 states and 8740 transitions. [2024-11-09 06:52:23,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:52:23,533 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-09 06:52:23,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:23,544 INFO L225 Difference]: With dead ends: 6875 [2024-11-09 06:52:23,544 INFO L226 Difference]: Without dead ends: 6873 [2024-11-09 06:52:23,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-09 06:52:23,547 INFO L432 NwaCegarLoop]: 467 mSDtfsCounter, 782 mSDsluCounter, 1927 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 2394 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:23,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [782 Valid, 2394 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:52:23,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6873 states. [2024-11-09 06:52:23,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6873 to 4825. [2024-11-09 06:52:23,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4825 states, 4824 states have (on average 1.2624378109452736) internal successors, (6090), 4824 states have internal predecessors, (6090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:23,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4825 states to 4825 states and 6090 transitions. [2024-11-09 06:52:23,633 INFO L78 Accepts]: Start accepts. Automaton has 4825 states and 6090 transitions. Word has length 75 [2024-11-09 06:52:23,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:23,633 INFO L471 AbstractCegarLoop]: Abstraction has 4825 states and 6090 transitions. [2024-11-09 06:52:23,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:23,634 INFO L276 IsEmpty]: Start isEmpty. Operand 4825 states and 6090 transitions. [2024-11-09 06:52:23,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 06:52:23,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:23,637 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:23,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-09 06:52:23,638 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:52:23,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:23,638 INFO L85 PathProgramCache]: Analyzing trace with hash 2071996820, now seen corresponding path program 1 times [2024-11-09 06:52:23,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:52:23,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033777105] [2024-11-09 06:52:23,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:23,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:23,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:24,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:24,103 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:52:24,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033777105] [2024-11-09 06:52:24,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033777105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:24,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:24,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:52:24,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297091621] [2024-11-09 06:52:24,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:24,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:52:24,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:52:24,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:52:24,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:52:24,105 INFO L87 Difference]: Start difference. First operand 4825 states and 6090 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:24,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:24,400 INFO L93 Difference]: Finished difference Result 7018 states and 8953 transitions. [2024-11-09 06:52:24,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:52:24,401 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-09 06:52:24,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:24,411 INFO L225 Difference]: With dead ends: 7018 [2024-11-09 06:52:24,412 INFO L226 Difference]: Without dead ends: 7016 [2024-11-09 06:52:24,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-09 06:52:24,415 INFO L432 NwaCegarLoop]: 464 mSDtfsCounter, 907 mSDsluCounter, 1929 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 2393 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:24,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [907 Valid, 2393 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:52:24,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7016 states. [2024-11-09 06:52:24,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7016 to 4786. [2024-11-09 06:52:24,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4786 states, 4785 states have (on average 1.2629049111807733) internal successors, (6043), 4785 states have internal predecessors, (6043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:24,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4786 states to 4786 states and 6043 transitions. [2024-11-09 06:52:24,497 INFO L78 Accepts]: Start accepts. Automaton has 4786 states and 6043 transitions. Word has length 75 [2024-11-09 06:52:24,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:24,498 INFO L471 AbstractCegarLoop]: Abstraction has 4786 states and 6043 transitions. [2024-11-09 06:52:24,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:24,498 INFO L276 IsEmpty]: Start isEmpty. Operand 4786 states and 6043 transitions. [2024-11-09 06:52:24,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-09 06:52:24,501 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:24,501 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:24,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-09 06:52:24,502 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:52:24,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:24,502 INFO L85 PathProgramCache]: Analyzing trace with hash -2066736926, now seen corresponding path program 1 times [2024-11-09 06:52:24,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:52:24,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106791171] [2024-11-09 06:52:24,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:24,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:24,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:24,902 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 06:52:24,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:52:24,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106791171] [2024-11-09 06:52:24,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106791171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:24,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:24,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 06:52:24,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069734028] [2024-11-09 06:52:24,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:24,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:52:24,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:52:24,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:52:24,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:52:24,905 INFO L87 Difference]: Start difference. First operand 4786 states and 6043 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:25,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:25,832 INFO L93 Difference]: Finished difference Result 7837 states and 9863 transitions. [2024-11-09 06:52:25,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 06:52:25,832 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-09 06:52:25,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:25,843 INFO L225 Difference]: With dead ends: 7837 [2024-11-09 06:52:25,844 INFO L226 Difference]: Without dead ends: 6008 [2024-11-09 06:52:25,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-11-09 06:52:25,847 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 1751 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1751 SdHoareTripleChecker+Valid, 1182 SdHoareTripleChecker+Invalid, 1065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:25,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1751 Valid, 1182 Invalid, 1065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1052 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 06:52:25,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6008 states. [2024-11-09 06:52:25,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6008 to 4769. [2024-11-09 06:52:25,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4769 states, 4768 states have (on average 1.2636325503355705) internal successors, (6025), 4768 states have internal predecessors, (6025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:25,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4769 states to 4769 states and 6025 transitions. [2024-11-09 06:52:25,920 INFO L78 Accepts]: Start accepts. Automaton has 4769 states and 6025 transitions. Word has length 77 [2024-11-09 06:52:25,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:25,920 INFO L471 AbstractCegarLoop]: Abstraction has 4769 states and 6025 transitions. [2024-11-09 06:52:25,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:25,921 INFO L276 IsEmpty]: Start isEmpty. Operand 4769 states and 6025 transitions. [2024-11-09 06:52:25,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-09 06:52:25,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:25,924 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:25,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-09 06:52:25,924 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:52:25,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:25,924 INFO L85 PathProgramCache]: Analyzing trace with hash -175558868, now seen corresponding path program 1 times [2024-11-09 06:52:25,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:52:25,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458595553] [2024-11-09 06:52:25,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:25,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:25,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:26,214 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 06:52:26,215 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:52:26,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458595553] [2024-11-09 06:52:26,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458595553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:26,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:26,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 06:52:26,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127491676] [2024-11-09 06:52:26,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:26,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:52:26,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:52:26,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:52:26,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:52:26,218 INFO L87 Difference]: Start difference. First operand 4769 states and 6025 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:26,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:26,867 INFO L93 Difference]: Finished difference Result 6824 states and 8631 transitions. [2024-11-09 06:52:26,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:52:26,868 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-09 06:52:26,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:26,876 INFO L225 Difference]: With dead ends: 6824 [2024-11-09 06:52:26,877 INFO L226 Difference]: Without dead ends: 4992 [2024-11-09 06:52:26,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:52:26,880 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 945 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:26,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [945 Valid, 786 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:52:26,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4992 states. [2024-11-09 06:52:26,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4992 to 4534. [2024-11-09 06:52:26,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4534 states, 4533 states have (on average 1.2618574895212884) internal successors, (5720), 4533 states have internal predecessors, (5720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:26,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4534 states to 4534 states and 5720 transitions. [2024-11-09 06:52:26,949 INFO L78 Accepts]: Start accepts. Automaton has 4534 states and 5720 transitions. Word has length 77 [2024-11-09 06:52:26,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:26,949 INFO L471 AbstractCegarLoop]: Abstraction has 4534 states and 5720 transitions. [2024-11-09 06:52:26,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:26,950 INFO L276 IsEmpty]: Start isEmpty. Operand 4534 states and 5720 transitions. [2024-11-09 06:52:26,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-09 06:52:26,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:26,952 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:26,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-09 06:52:26,953 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:52:26,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:26,953 INFO L85 PathProgramCache]: Analyzing trace with hash -262712424, now seen corresponding path program 1 times [2024-11-09 06:52:26,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:52:26,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586017801] [2024-11-09 06:52:26,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:26,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:27,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:28,153 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:28,153 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:52:28,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586017801] [2024-11-09 06:52:28,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586017801] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:52:28,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133597734] [2024-11-09 06:52:28,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:28,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:52:28,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:52:28,156 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:52:28,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:52:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:28,554 INFO L255 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 06:52:28,564 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:52:29,571 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:52:29,574 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:52:29,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133597734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:29,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:52:29,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [16] total 26 [2024-11-09 06:52:29,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380343277] [2024-11-09 06:52:29,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:29,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:52:29,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:52:29,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:52:29,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=573, Unknown=0, NotChecked=0, Total=650 [2024-11-09 06:52:29,579 INFO L87 Difference]: Start difference. First operand 4534 states and 5720 transitions. Second operand has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:30,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:30,409 INFO L93 Difference]: Finished difference Result 8928 states and 11335 transitions. [2024-11-09 06:52:30,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 06:52:30,410 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-09 06:52:30,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:30,432 INFO L225 Difference]: With dead ends: 8928 [2024-11-09 06:52:30,432 INFO L226 Difference]: Without dead ends: 7116 [2024-11-09 06:52:30,438 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=155, Invalid=967, Unknown=0, NotChecked=0, Total=1122 [2024-11-09 06:52:30,439 INFO L432 NwaCegarLoop]: 442 mSDtfsCounter, 1751 mSDsluCounter, 2198 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1751 SdHoareTripleChecker+Valid, 2640 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:30,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1751 Valid, 2640 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:52:30,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7116 states. [2024-11-09 06:52:30,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7116 to 5015. [2024-11-09 06:52:30,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5015 states, 5014 states have (on average 1.2650578380534503) internal successors, (6343), 5014 states have internal predecessors, (6343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:30,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5015 states to 5015 states and 6343 transitions. [2024-11-09 06:52:30,534 INFO L78 Accepts]: Start accepts. Automaton has 5015 states and 6343 transitions. Word has length 78 [2024-11-09 06:52:30,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:30,535 INFO L471 AbstractCegarLoop]: Abstraction has 5015 states and 6343 transitions. [2024-11-09 06:52:30,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:30,535 INFO L276 IsEmpty]: Start isEmpty. Operand 5015 states and 6343 transitions. [2024-11-09 06:52:30,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-09 06:52:30,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:30,538 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:30,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 06:52:30,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:52:30,742 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:52:30,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:30,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1477843576, now seen corresponding path program 1 times [2024-11-09 06:52:30,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:52:30,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591805493] [2024-11-09 06:52:30,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:30,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:31,950 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:31,951 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:52:31,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591805493] [2024-11-09 06:52:31,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591805493] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:52:31,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507743309] [2024-11-09 06:52:31,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:31,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:52:31,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:52:31,953 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:52:31,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 06:52:32,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:32,333 INFO L255 TraceCheckSpWp]: Trace formula consists of 691 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-09 06:52:32,339 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:52:34,449 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:34,450 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:52:41,569 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:41,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507743309] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:52:41,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [600704016] [2024-11-09 06:52:41,601 INFO L159 IcfgInterpreter]: Started Sifa with 73 locations of interest [2024-11-09 06:52:41,601 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:52:41,605 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:52:41,612 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:52:41,613 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:53:36,557 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:55:43,057 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '205456#(and (= ~nomsg~0 ~p1_new~0) (exists ((|v_ULTIMATE.start_main_~assert__arg~1#1_18| Int) (|v_ULTIMATE.start_main_~__tmp_2~0#1_5| Int)) (and (= 0 |v_ULTIMATE.start_main_~assert__arg~1#1_18|) (= ~__return_5213~0 0) (= |v_ULTIMATE.start_main_~__tmp_2~0#1_5| 0))) (<= 0 ~mode3~0) (= ~__tmp_4534_0~0 ~__tmp_5188_0~0) (= ~p3_new~0 ~nomsg~0) (<= ~mode3~0 1) (= ~nomsg~0 ~p2_new~0) (or (< 1 (+ ~st3~0 ~st2~0 ~st1~0)) (and (<= 3 ~r1~0) (not (= (+ ~st3~0 ~st2~0 ~st1~0) 1)))))' at error location [2024-11-09 06:55:43,058 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:55:43,058 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:55:43,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 18, 18] total 48 [2024-11-09 06:55:43,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156867429] [2024-11-09 06:55:43,058 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:55:43,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-09 06:55:43,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:43,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-09 06:55:43,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1135, Invalid=9371, Unknown=0, NotChecked=0, Total=10506 [2024-11-09 06:55:43,063 INFO L87 Difference]: Start difference. First operand 5015 states and 6343 transitions. Second operand has 48 states, 48 states have (on average 4.8125) internal successors, (231), 48 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:30,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:56:30,996 INFO L93 Difference]: Finished difference Result 22227 states and 28757 transitions. [2024-11-09 06:56:30,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 198 states. [2024-11-09 06:56:30,997 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 4.8125) internal successors, (231), 48 states have internal predecessors, (231), 0 states have call successors, (0), 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 78 [2024-11-09 06:56:30,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:56:31,028 INFO L225 Difference]: With dead ends: 22227 [2024-11-09 06:56:31,028 INFO L226 Difference]: Without dead ends: 19411 [2024-11-09 06:56:31,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 146 SyntacticMatches, 2 SemanticMatches, 289 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37433 ImplicationChecksByTransitivity, 165.8s TimeCoverageRelationStatistics Valid=9120, Invalid=75270, Unknown=0, NotChecked=0, Total=84390 [2024-11-09 06:56:31,048 INFO L432 NwaCegarLoop]: 379 mSDtfsCounter, 4672 mSDsluCounter, 8725 mSDsCounter, 0 mSdLazyCounter, 10151 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4672 SdHoareTripleChecker+Valid, 9104 SdHoareTripleChecker+Invalid, 10449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 10151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:56:31,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4672 Valid, 9104 Invalid, 10449 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [298 Valid, 10151 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2024-11-09 06:56:31,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19411 states. [2024-11-09 06:56:31,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19411 to 16421. [2024-11-09 06:56:31,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16421 states, 16420 states have (on average 1.2816686967113275) internal successors, (21045), 16420 states have internal predecessors, (21045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:31,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16421 states to 16421 states and 21045 transitions. [2024-11-09 06:56:31,318 INFO L78 Accepts]: Start accepts. Automaton has 16421 states and 21045 transitions. Word has length 78 [2024-11-09 06:56:31,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:56:31,319 INFO L471 AbstractCegarLoop]: Abstraction has 16421 states and 21045 transitions. [2024-11-09 06:56:31,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 4.8125) internal successors, (231), 48 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:31,319 INFO L276 IsEmpty]: Start isEmpty. Operand 16421 states and 21045 transitions. [2024-11-09 06:56:31,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-09 06:56:31,322 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:56:31,322 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:31,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 06:56:31,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:56:31,523 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:56:31,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:31,524 INFO L85 PathProgramCache]: Analyzing trace with hash 390365302, now seen corresponding path program 1 times [2024-11-09 06:56:31,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:56:31,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314347973] [2024-11-09 06:56:31,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:31,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:31,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:31,687 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:56:31,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314347973] [2024-11-09 06:56:31,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314347973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:31,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:31,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:56:31,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75800827] [2024-11-09 06:56:31,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:31,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:56:31,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:56:31,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:56:31,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:56:31,691 INFO L87 Difference]: Start difference. First operand 16421 states and 21045 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:31,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:56:31,885 INFO L93 Difference]: Finished difference Result 26071 states and 33648 transitions. [2024-11-09 06:56:31,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:56:31,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-11-09 06:56:31,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:56:31,910 INFO L225 Difference]: With dead ends: 26071 [2024-11-09 06:56:31,910 INFO L226 Difference]: Without dead ends: 17500 [2024-11-09 06:56:31,920 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 [2024-11-09 06:56:31,921 INFO L432 NwaCegarLoop]: 466 mSDtfsCounter, 262 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:56:31,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 637 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:56:31,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17500 states. [2024-11-09 06:56:32,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17500 to 17256. [2024-11-09 06:56:32,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17256 states, 17255 states have (on average 1.273543900318748) internal successors, (21975), 17255 states have internal predecessors, (21975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:32,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17256 states to 17256 states and 21975 transitions. [2024-11-09 06:56:32,178 INFO L78 Accepts]: Start accepts. Automaton has 17256 states and 21975 transitions. Word has length 78 [2024-11-09 06:56:32,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:56:32,178 INFO L471 AbstractCegarLoop]: Abstraction has 17256 states and 21975 transitions. [2024-11-09 06:56:32,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:32,179 INFO L276 IsEmpty]: Start isEmpty. Operand 17256 states and 21975 transitions. [2024-11-09 06:56:32,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-09 06:56:32,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:56:32,182 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:32,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-09 06:56:32,182 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:56:32,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:32,184 INFO L85 PathProgramCache]: Analyzing trace with hash -2021904912, now seen corresponding path program 1 times [2024-11-09 06:56:32,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:56:32,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304393234] [2024-11-09 06:56:32,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:32,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:32,271 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:56:32,271 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:56:32,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304393234] [2024-11-09 06:56:32,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304393234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:32,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:32,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:56:32,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836248085] [2024-11-09 06:56:32,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:32,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:56:32,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:56:32,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:56:32,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:56:32,274 INFO L87 Difference]: Start difference. First operand 17256 states and 21975 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:32,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:56:32,371 INFO L93 Difference]: Finished difference Result 20668 states and 26310 transitions. [2024-11-09 06:56:32,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:56:32,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 80 [2024-11-09 06:56:32,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:56:32,390 INFO L225 Difference]: With dead ends: 20668 [2024-11-09 06:56:32,391 INFO L226 Difference]: Without dead ends: 13524 [2024-11-09 06:56:32,398 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 [2024-11-09 06:56:32,399 INFO L432 NwaCegarLoop]: 442 mSDtfsCounter, 128 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:56:32,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 742 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:56:32,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13524 states. [2024-11-09 06:56:32,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13524 to 13364. [2024-11-09 06:56:32,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13364 states, 13363 states have (on average 1.2606450647309735) internal successors, (16846), 13363 states have internal predecessors, (16846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:32,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13364 states to 13364 states and 16846 transitions. [2024-11-09 06:56:32,590 INFO L78 Accepts]: Start accepts. Automaton has 13364 states and 16846 transitions. Word has length 80 [2024-11-09 06:56:32,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:56:32,591 INFO L471 AbstractCegarLoop]: Abstraction has 13364 states and 16846 transitions. [2024-11-09 06:56:32,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:32,592 INFO L276 IsEmpty]: Start isEmpty. Operand 13364 states and 16846 transitions. [2024-11-09 06:56:32,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-09 06:56:32,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:56:32,595 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:32,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-09 06:56:32,596 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:56:32,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:32,596 INFO L85 PathProgramCache]: Analyzing trace with hash -729061492, now seen corresponding path program 1 times [2024-11-09 06:56:32,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:56:32,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059252735] [2024-11-09 06:56:32,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:32,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:32,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:32,942 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 06:56:32,943 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:56:32,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059252735] [2024-11-09 06:56:32,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059252735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:32,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:32,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 06:56:32,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551279353] [2024-11-09 06:56:32,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:32,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:56:32,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:56:32,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:56:32,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:56:32,945 INFO L87 Difference]: Start difference. First operand 13364 states and 16846 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:33,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:56:33,858 INFO L93 Difference]: Finished difference Result 17527 states and 22000 transitions. [2024-11-09 06:56:33,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 06:56:33,859 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-09 06:56:33,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:56:33,872 INFO L225 Difference]: With dead ends: 17527 [2024-11-09 06:56:33,872 INFO L226 Difference]: Without dead ends: 15207 [2024-11-09 06:56:33,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-11-09 06:56:33,876 INFO L432 NwaCegarLoop]: 373 mSDtfsCounter, 1002 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1002 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:56:33,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1002 Valid, 1652 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1325 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 06:56:33,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15207 states. [2024-11-09 06:56:34,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15207 to 13347. [2024-11-09 06:56:34,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13347 states, 13346 states have (on average 1.2608272141465608) internal successors, (16827), 13346 states have internal predecessors, (16827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:34,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13347 states to 13347 states and 16827 transitions. [2024-11-09 06:56:34,074 INFO L78 Accepts]: Start accepts. Automaton has 13347 states and 16827 transitions. Word has length 80 [2024-11-09 06:56:34,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:56:34,075 INFO L471 AbstractCegarLoop]: Abstraction has 13347 states and 16827 transitions. [2024-11-09 06:56:34,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:34,075 INFO L276 IsEmpty]: Start isEmpty. Operand 13347 states and 16827 transitions. [2024-11-09 06:56:34,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 06:56:34,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:56:34,078 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:34,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-09 06:56:34,078 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:56:34,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:34,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1565387704, now seen corresponding path program 1 times [2024-11-09 06:56:34,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:56:34,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389855276] [2024-11-09 06:56:34,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:34,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:34,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:34,182 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:56:34,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:56:34,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389855276] [2024-11-09 06:56:34,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389855276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:34,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:34,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:56:34,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066572757] [2024-11-09 06:56:34,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:34,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:56:34,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:56:34,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:56:34,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:56:34,186 INFO L87 Difference]: Start difference. First operand 13347 states and 16827 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:34,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:56:34,570 INFO L93 Difference]: Finished difference Result 25399 states and 32138 transitions. [2024-11-09 06:56:34,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:56:34,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 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 81 [2024-11-09 06:56:34,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:56:34,583 INFO L225 Difference]: With dead ends: 25399 [2024-11-09 06:56:34,583 INFO L226 Difference]: Without dead ends: 15906 [2024-11-09 06:56:34,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:56:34,591 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 264 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:56:34,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 707 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:56:34,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15906 states. [2024-11-09 06:56:34,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15906 to 12935. [2024-11-09 06:56:34,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12935 states, 12934 states have (on average 1.2471006649141796) internal successors, (16130), 12934 states have internal predecessors, (16130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:34,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12935 states to 12935 states and 16130 transitions. [2024-11-09 06:56:34,776 INFO L78 Accepts]: Start accepts. Automaton has 12935 states and 16130 transitions. Word has length 81 [2024-11-09 06:56:34,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:56:34,776 INFO L471 AbstractCegarLoop]: Abstraction has 12935 states and 16130 transitions. [2024-11-09 06:56:34,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:34,777 INFO L276 IsEmpty]: Start isEmpty. Operand 12935 states and 16130 transitions. [2024-11-09 06:56:34,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 06:56:34,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:56:34,780 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:34,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-09 06:56:34,780 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:56:34,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:34,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1756090633, now seen corresponding path program 1 times [2024-11-09 06:56:34,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:56:34,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927442078] [2024-11-09 06:56:34,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:34,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:34,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:35,894 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:35,894 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:56:35,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927442078] [2024-11-09 06:56:35,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927442078] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:56:35,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15584050] [2024-11-09 06:56:35,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:35,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:56:35,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:56:35,896 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:56:35,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 06:56:36,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:36,283 INFO L255 TraceCheckSpWp]: Trace formula consists of 699 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-09 06:56:36,290 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:56:38,280 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:38,280 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:56:47,121 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:47,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15584050] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:56:47,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [48173372] [2024-11-09 06:56:47,124 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2024-11-09 06:56:47,125 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:56:47,125 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:56:47,125 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:56:47,125 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:57:30,806 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:01:03,614 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '391666#(and (= ~__tmp_5374_0~0 0) (= ~__return_1470~0 0) (= ~__tmp_3301_0~0 0) (= ~__tmp_3183_0~0 0) (<= 0 ~id3~0) (= ~__return_1180~0 0) (= ~__return_3569~0 0) (= ~__return_1260~0 0) (<= 1 |#StackHeapBarrier|) (= ~__return_1290~0 0) (= ~__tmp_2319_0~0 0) (= ~__return_1410~0 0) (= ~__return_5922~0 0) (= ~__return_1480~0 0) (= ~__tmp_2769_0~0 0) (= ~__return_1450~0 0) (= ~__tmp_2079_0~0 0) (= ~__tmp_1970_0~0 0) (= ~__return_1240~0 0) (= ~__tmp_3313_0~0 0) (= ~__return_1190~0 0) (= ~__return_3771~0 0) (= ~__tmp_5103_0~0 0) (= ~__tmp_3554_0~0 0) (= ~__tmp_2343_0~0 0) (= ~__return_2796~0 0) (= ~__return_1140~0 0) (= ~__return_1230~0 0) (= ~__return_3037~0 0) (= ~__return_1250~0 0) (= ~__return_3150~0 0) (= ~__return_1430~0 0) (<= 0 ~id1~0) (= ~__return_1350~0 0) (= ~__return_1270~0 0) (= ~__return_2859~0 0) (= ~__tmp_4308_0~0 0) (= ~__return_1210~0 0) (= ~__return_1390~0 0) (= ~__tmp_2404_0~0 0) (= ~__return_1130~0 0) (= ~__tmp_4730_0~0 0) (= ~p2~0 0) (= ~__tmp_4109_0~0 0) (= ~__return_1120~0 0) (= ~__return_1150~0 0) (= ~__return_1490~0 0) (= ~__tmp_3171_0~0 0) (= ~__return_3975~0 0) (= ~__tmp_2933_0~0 0) (= ~__return_1520~0 0) (= ~__tmp_3720_0~0 0) (= ~__tmp_3910_0~0 0) (= ~__return_1540~0 0) (<= 0 ~mode3~0) (= (+ ~p1_new~0 1) 0) (= ~__tmp_3542_0~0 0) (= ~__tmp_5338_0~0 0) (= ~__tmp_4534_0~0 ~__tmp_5188_0~0) (= ~__tmp_3960_0~0 0) (= ~__tmp_2140_0~0 0) (= ~__return_3417~0 0) (= ~__return_1200~0 0) (= ~__return_4397~0 0) (= ~__tmp_3605_0~0 0) (= ~__tmp_3792_0~0 0) (= ~__tmp_4274_0~0 0) (= ~__return_1100~0 0) (<= ~mode2~0 1) (= ~__tmp_3402_0~0 0) (= ~__tmp_3255_0~0 0) (<= 1 ~__tmp_5135_0~0) (= ~__tmp_2055_0~0 0) (= ~__tmp_4159_0~0 0) (= ~__return_2358~0 0) (= ~__tmp_2832_0~0 0) (= ~__tmp_2844_0~0 0) (= ~__tmp_2668_0~0 0) (= ~__tmp_1994_0~0 0) (= ~__return_1170~0 0) (= ~__return_1280~0 0) (<= ~mode3~0 1) (= ~__tmp_4075_0~0 0) (= ~__return_102~0 1) (= ~__return_2443~0 0) (<= 0 ~send2~0) (= ~__return_2205~0 0) (= ~__tmp_2489_0~0 0) (= ~__return_1360~0 0) (= ~__return_1340~0 0) (<= ~id1~0 127) (= (+ ~p1_old~0 1) 0) (or (< 1 (+ ~st3~0 ~st1~0)) (and (<= 3 ~r1~0) (not (= (+ ~st3~0 ~st1~0) 1)))) (= ~__return_1420~0 0) (= ~__tmp_3099_0~0 0) (= ~__tmp_5226_0~0 1) (<= ~send2~0 127) (= ~__return_2707~0 0) (exists ((|v_ULTIMATE.start_main_~assert__arg~1#1_26| Int) (|v_ULTIMATE.start_main_~__tmp_2~0#1_5| Int)) (and (= ~__return_5213~0 0) (= |v_ULTIMATE.start_main_~__tmp_2~0#1_5| 0) (= 0 |v_ULTIMATE.start_main_~assert__arg~1#1_26|))) (= ~__return_3328~0 0) (= ~__tmp_2984_0~0 0) (= ~__tmp_2972_0~0 0) (= ~__return_4533~0 0) (= ~__tmp_3390_0~0 0) (<= 2 |ULTIMATE.start_main_~main__i2~0#1|) (= ~__tmp_2781_0~0 0) (= ~__tmp_3453_0~0 0) (<= 1 ~__tmp_5188_0~0) (<= ~mode1~0 1) (= (+ ~nomsg~0 1) 0) (= ~__return_1160~0 1) (= ~__tmp_2820_0~0 0) (= ~__return_1300~0 0) (= ~__return_1320~0 0) (= ~__tmp_4918_0~0 0) (= ~__return_2009~0 0) (= ~__return_1110~0 0) (= ~__return_4287~0 0) (= ~__return_1460~0 0) (= ~__tmp_3804_0~0 0) (= ~__return_1400~0 0) (= ~__return_2554~0 0) (= ~__return_3480~0 0) (= ~__tmp_2600_0~0 0) (<= ~id3~0 127) (= ~__return_1530~0 0) (= ~__tmp_2428_0~0 0) (= ~__return_1500~0 0) (= ~__tmp_3465_0~0 0) (= ~__tmp_3441_0~0 0) (= ~__return_1440~0 0) (<= 0 ~id2~0) (= ~st2~0 0) (= ~__tmp_2921_0~0 0) (= ~__return_2094~0 1) (= ~__tmp_5012_0~0 0) (= ~__return_1330~0 0) (= ~__return_1370~0 0) (= (+ ~p3_new~0 1) 0) (= ~__return_1220~0 0) (= ~__tmp_4560_0~0 0) (= ~__tmp_3289_0~0 0) (= ~__tmp_4824_0~0 0) (= ~__return_4174~0 0) (= ~__tmp_3876_0~0 0) (<= ~id2~0 127) (= ~__tmp_2692_0~0 0) (= ~__return_3658~0 0) (= ~__return_1310~0 0) (= ~p3~0 0) (= ~__return_1380~0 0) (= ~__return_2948~0 0) (= ~p1~0 0) (= ~__return_1510~0 0) (= ~__return_1550~0 0) (= ~__return_main~0 0) (= ~__return_1560~0 0) (= ~__tmp_2680_0~0 0) (= ~__tmp_3593_0~0 0) (= ~__return_4088~0 0) (<= 0 ~__tmp_5273_0~0) (= ~__return_1570~0 0) (= ~__tmp_2251_0~0 0) (= (+ ~p2_new~0 1) 0))' at error location [2024-11-09 07:01:03,614 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:01:03,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:01:03,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 20] total 52 [2024-11-09 07:01:03,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154275958] [2024-11-09 07:01:03,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:01:03,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-11-09 07:01:03,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:01:03,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-11-09 07:01:03,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1346, Invalid=10864, Unknown=0, NotChecked=0, Total=12210 [2024-11-09 07:01:03,618 INFO L87 Difference]: Start difference. First operand 12935 states and 16130 transitions. Second operand has 52 states, 52 states have (on average 4.615384615384615) internal successors, (240), 52 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:55,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:02:55,571 INFO L93 Difference]: Finished difference Result 57946 states and 72843 transitions. [2024-11-09 07:02:55,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 281 states. [2024-11-09 07:02:55,572 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 4.615384615384615) internal successors, (240), 52 states have internal predecessors, (240), 0 states have call successors, (0), 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 81 [2024-11-09 07:02:55,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:02:55,623 INFO L225 Difference]: With dead ends: 57946 [2024-11-09 07:02:55,623 INFO L226 Difference]: Without dead ends: 56280 [2024-11-09 07:02:55,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 532 GetRequests, 148 SyntacticMatches, 2 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65735 ImplicationChecksByTransitivity, 313.5s TimeCoverageRelationStatistics Valid=15413, Invalid=131659, Unknown=0, NotChecked=0, Total=147072 [2024-11-09 07:02:55,644 INFO L432 NwaCegarLoop]: 332 mSDtfsCounter, 7003 mSDsluCounter, 7403 mSDsCounter, 0 mSdLazyCounter, 10259 mSolverCounterSat, 474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7003 SdHoareTripleChecker+Valid, 7735 SdHoareTripleChecker+Invalid, 10733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 474 IncrementalHoareTripleChecker+Valid, 10259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:02:55,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7003 Valid, 7735 Invalid, 10733 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [474 Valid, 10259 Invalid, 0 Unknown, 0 Unchecked, 12.1s Time] [2024-11-09 07:02:55,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56280 states. [2024-11-09 07:02:56,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56280 to 34686. [2024-11-09 07:02:56,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34686 states, 34685 states have (on average 1.2435346691653453) internal successors, (43132), 34685 states have internal predecessors, (43132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:56,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34686 states to 34686 states and 43132 transitions. [2024-11-09 07:02:56,071 INFO L78 Accepts]: Start accepts. Automaton has 34686 states and 43132 transitions. Word has length 81 [2024-11-09 07:02:56,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:02:56,071 INFO L471 AbstractCegarLoop]: Abstraction has 34686 states and 43132 transitions. [2024-11-09 07:02:56,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 4.615384615384615) internal successors, (240), 52 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:56,071 INFO L276 IsEmpty]: Start isEmpty. Operand 34686 states and 43132 transitions. [2024-11-09 07:02:56,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-09 07:02:56,073 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:02:56,073 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:02:56,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 07:02:56,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:02:56,274 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 07:02:56,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:56,274 INFO L85 PathProgramCache]: Analyzing trace with hash -457716011, now seen corresponding path program 1 times [2024-11-09 07:02:56,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:02:56,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795578840] [2024-11-09 07:02:56,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:56,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:56,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:57,247 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:02:57,247 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:02:57,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795578840] [2024-11-09 07:02:57,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795578840] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:02:57,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441221993] [2024-11-09 07:02:57,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:57,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:02:57,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:02:57,250 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:02:57,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 07:02:57,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:57,612 INFO L255 TraceCheckSpWp]: Trace formula consists of 697 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 07:02:57,616 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:02:58,756 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:02:58,756 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:03:00,434 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:03:00,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441221993] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:03:00,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [453511662] [2024-11-09 07:03:00,438 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2024-11-09 07:03:00,438 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:03:00,439 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:03:00,439 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:03:00,439 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:03:12,085 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:04:47,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [453511662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:04:47,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:04:47,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [14, 14, 13] total 60 [2024-11-09 07:04:47,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637970067] [2024-11-09 07:04:47,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:04:47,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-09 07:04:47,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:04:47,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-09 07:04:47,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=520, Invalid=3020, Unknown=0, NotChecked=0, Total=3540 [2024-11-09 07:04:47,810 INFO L87 Difference]: Start difference. First operand 34686 states and 43132 transitions. Second operand has 29 states, 29 states have (on average 2.6551724137931036) internal successors, (77), 28 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:05:10,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:05:10,049 INFO L93 Difference]: Finished difference Result 37264 states and 46314 transitions. [2024-11-09 07:05:10,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-09 07:05:10,050 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.6551724137931036) internal successors, (77), 28 states have internal predecessors, (77), 0 states have call successors, (0), 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 83 [2024-11-09 07:05:10,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:05:10,080 INFO L225 Difference]: With dead ends: 37264 [2024-11-09 07:05:10,080 INFO L226 Difference]: Without dead ends: 34259 [2024-11-09 07:05:10,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 202 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1578 ImplicationChecksByTransitivity, 96.4s TimeCoverageRelationStatistics Valid=520, Invalid=3020, Unknown=0, NotChecked=0, Total=3540 [2024-11-09 07:05:10,086 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 5 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 5242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 5242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:05:10,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 692 Invalid, 5242 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5242 Invalid, 0 Unknown, 0 Unchecked, 22.0s Time] [2024-11-09 07:05:10,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34259 states. [2024-11-09 07:05:10,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34259 to 34259. [2024-11-09 07:05:10,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34259 states, 34258 states have (on average 1.2435635472006539) internal successors, (42602), 34258 states have internal predecessors, (42602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:05:10,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34259 states to 34259 states and 42602 transitions. [2024-11-09 07:05:10,431 INFO L78 Accepts]: Start accepts. Automaton has 34259 states and 42602 transitions. Word has length 83 [2024-11-09 07:05:10,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:05:10,431 INFO L471 AbstractCegarLoop]: Abstraction has 34259 states and 42602 transitions. [2024-11-09 07:05:10,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.6551724137931036) internal successors, (77), 28 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:05:10,432 INFO L276 IsEmpty]: Start isEmpty. Operand 34259 states and 42602 transitions. [2024-11-09 07:05:10,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-09 07:05:10,434 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:05:10,434 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:05:10,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 07:05:10,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-09 07:05:10,635 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 07:05:10,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:05:10,635 INFO L85 PathProgramCache]: Analyzing trace with hash -2104068492, now seen corresponding path program 1 times [2024-11-09 07:05:10,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:05:10,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248719931] [2024-11-09 07:05:10,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:10,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:05:10,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:10,697 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 07:05:10,697 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:05:10,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248719931] [2024-11-09 07:05:10,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248719931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:05:10,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:05:10,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:05:10,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743117759] [2024-11-09 07:05:10,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:05:10,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:05:10,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:05:10,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:05:10,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:05:10,699 INFO L87 Difference]: Start difference. First operand 34259 states and 42602 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:05:10,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:05:10,866 INFO L93 Difference]: Finished difference Result 41358 states and 51390 transitions. [2024-11-09 07:05:10,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:05:10,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 83 [2024-11-09 07:05:10,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:05:10,904 INFO L225 Difference]: With dead ends: 41358 [2024-11-09 07:05:10,905 INFO L226 Difference]: Without dead ends: 26260 [2024-11-09 07:05:10,920 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 [2024-11-09 07:05:10,921 INFO L432 NwaCegarLoop]: 431 mSDtfsCounter, 137 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:05:10,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 720 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:05:10,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26260 states. [2024-11-09 07:05:11,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26260 to 25686. [2024-11-09 07:05:11,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25686 states, 25685 states have (on average 1.235039906560249) internal successors, (31722), 25685 states have internal predecessors, (31722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:05:11,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25686 states to 25686 states and 31722 transitions. [2024-11-09 07:05:11,238 INFO L78 Accepts]: Start accepts. Automaton has 25686 states and 31722 transitions. Word has length 83 [2024-11-09 07:05:11,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:05:11,238 INFO L471 AbstractCegarLoop]: Abstraction has 25686 states and 31722 transitions. [2024-11-09 07:05:11,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:05:11,239 INFO L276 IsEmpty]: Start isEmpty. Operand 25686 states and 31722 transitions. [2024-11-09 07:05:11,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 07:05:11,241 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:05:11,241 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:05:11,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-09 07:05:11,241 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 07:05:11,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:05:11,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1164873475, now seen corresponding path program 1 times [2024-11-09 07:05:11,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:05:11,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669039866] [2024-11-09 07:05:11,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:11,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:05:11,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:12,052 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:05:12,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:05:12,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669039866] [2024-11-09 07:05:12,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669039866] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:05:12,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97157779] [2024-11-09 07:05:12,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:12,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:05:12,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:05:12,054 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:05:12,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7982fa89-2b48-4bc4-a036-644825e3d3b9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 07:05:12,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:12,501 INFO L255 TraceCheckSpWp]: Trace formula consists of 700 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 07:05:12,505 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:05:13,742 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:05:13,742 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:05:15,173 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:05:15,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97157779] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:05:15,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [354116965] [2024-11-09 07:05:15,177 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2024-11-09 07:05:15,177 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:05:15,178 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:05:15,178 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:05:15,179 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:05:29,974 INFO L180 IcfgInterpreter]: Interpretation finished