./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E --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 52ea16d32fee186339e754b295bffdbf40567dcb9eb1871e1f81ccc6c9f03c9b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:41:50,981 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:41:51,077 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 03:41:51,084 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:41:51,085 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:41:51,121 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:41:51,121 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:41:51,121 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:41:51,122 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:41:51,122 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:41:51,122 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:41:51,122 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:41:51,122 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:41:51,122 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:41:51,122 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:41:51,123 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:41:51,123 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:41:51,123 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:41:51,123 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:41:51,123 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:41:51,123 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:41:51,125 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:41:51,126 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:41:51,127 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:41:51,127 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:41:51,127 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:41:51,127 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:41:51,127 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:41:51,127 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:41:51,127 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:41:51,127 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:41:51,127 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:41:51,127 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:41:51,127 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:41:51,128 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:41:51,128 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:41:51,128 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:41:51,129 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:41:51,129 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:41:51,129 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:41:51,129 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:41:51,129 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:41:51,129 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:41:51,129 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:41:51,130 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:41:51,130 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:41:51,130 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:41:51,130 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E 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 -> 52ea16d32fee186339e754b295bffdbf40567dcb9eb1871e1f81ccc6c9f03c9b [2024-11-14 03:41:51,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:41:51,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:41:51,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:41:51,465 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:41:51,466 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:41:51,467 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c Unable to find full path for "g++" [2024-11-14 03:41:53,383 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:41:53,851 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:41:53,852 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2024-11-14 03:41:53,895 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/data/b8cd08114/41ca060fe91441d3bedc2b73388f6e64/FLAG395a29373 [2024-11-14 03:41:53,969 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/data/b8cd08114/41ca060fe91441d3bedc2b73388f6e64 [2024-11-14 03:41:53,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:41:53,976 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:41:53,978 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:41:53,978 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:41:53,983 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:41:53,984 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:41:53" (1/1) ... [2024-11-14 03:41:53,987 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61a6713e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:53, skipping insertion in model container [2024-11-14 03:41:53,987 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:41:53" (1/1) ... [2024-11-14 03:41:54,124 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:41:54,496 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_f36eefb9-f43f-4093-920a-b2e560eb80e8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[7184,7197] [2024-11-14 03:41:54,530 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_f36eefb9-f43f-4093-920a-b2e560eb80e8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[11285,11298] [2024-11-14 03:41:54,578 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_f36eefb9-f43f-4093-920a-b2e560eb80e8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[18315,18328] [2024-11-14 03:41:54,611 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_f36eefb9-f43f-4093-920a-b2e560eb80e8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[24747,24760] [2024-11-14 03:41:54,714 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_f36eefb9-f43f-4093-920a-b2e560eb80e8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[43722,43735] [2024-11-14 03:41:54,849 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_f36eefb9-f43f-4093-920a-b2e560eb80e8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[71504,71517] [2024-11-14 03:41:55,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:41:55,047 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:41:55,087 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_f36eefb9-f43f-4093-920a-b2e560eb80e8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[7184,7197] [2024-11-14 03:41:55,107 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_f36eefb9-f43f-4093-920a-b2e560eb80e8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[11285,11298] [2024-11-14 03:41:55,141 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_f36eefb9-f43f-4093-920a-b2e560eb80e8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[18315,18328] [2024-11-14 03:41:55,160 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_f36eefb9-f43f-4093-920a-b2e560eb80e8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[24747,24760] [2024-11-14 03:41:55,206 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_f36eefb9-f43f-4093-920a-b2e560eb80e8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[43722,43735] [2024-11-14 03:41:55,302 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_f36eefb9-f43f-4093-920a-b2e560eb80e8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[71504,71517] [2024-11-14 03:41:55,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:41:55,456 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:41:55,457 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:55 WrapperNode [2024-11-14 03:41:55,458 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:41:55,459 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:41:55,460 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:41:55,460 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:41:55,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:55" (1/1) ... [2024-11-14 03:41:55,523 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:55" (1/1) ... [2024-11-14 03:41:55,684 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6039 [2024-11-14 03:41:55,685 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:41:55,685 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:41:55,686 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:41:55,686 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:41:55,693 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:55" (1/1) ... [2024-11-14 03:41:55,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:55" (1/1) ... [2024-11-14 03:41:55,724 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:55" (1/1) ... [2024-11-14 03:41:55,724 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:55" (1/1) ... [2024-11-14 03:41:55,796 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:55" (1/1) ... [2024-11-14 03:41:55,846 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:55" (1/1) ... [2024-11-14 03:41:55,869 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:55" (1/1) ... [2024-11-14 03:41:55,932 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:55" (1/1) ... [2024-11-14 03:41:55,962 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:41:55,963 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:41:55,964 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:41:55,964 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:41:55,965 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:55" (1/1) ... [2024-11-14 03:41:55,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:41:55,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:41:56,001 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:41:56,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:41:56,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:41:56,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:41:56,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:41:56,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:41:56,405 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:41:56,407 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:42:00,487 INFO L? ?]: Removed 1041 outVars from TransFormulas that were not future-live. [2024-11-14 03:42:00,488 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:42:01,082 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:42:01,082 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 03:42:01,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:42:01 BoogieIcfgContainer [2024-11-14 03:42:01,083 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:42:01,085 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:42:01,085 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:42:01,090 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:42:01,090 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:41:53" (1/3) ... [2024-11-14 03:42:01,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3743cae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:42:01, skipping insertion in model container [2024-11-14 03:42:01,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:55" (2/3) ... [2024-11-14 03:42:01,092 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3743cae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:42:01, skipping insertion in model container [2024-11-14 03:42:01,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:42:01" (3/3) ... [2024-11-14 03:42:01,093 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2024-11-14 03:42:01,109 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:42:01,112 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c that has 1 procedures, 1176 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2024-11-14 03:42:01,201 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:42:01,214 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;@5f5d1c14, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:42:01,214 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-14 03:42:01,222 INFO L276 IsEmpty]: Start isEmpty. Operand has 1176 states, 1169 states have (on average 1.8092386655260906) internal successors, (2115), 1175 states have internal predecessors, (2115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:01,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-14 03:42:01,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:01,266 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] [2024-11-14 03:42:01,266 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:42:01,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:01,271 INFO L85 PathProgramCache]: Analyzing trace with hash 966667412, now seen corresponding path program 1 times [2024-11-14 03:42:01,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:01,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578948360] [2024-11-14 03:42:01,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:01,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:42:01,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:42:02,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:42:02,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:42:02,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578948360] [2024-11-14 03:42:02,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578948360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:42:02,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:42:02,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:42:02,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133741952] [2024-11-14 03:42:02,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:42:02,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:42:02,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:42:02,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:42:02,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:42:02,055 INFO L87 Difference]: Start difference. First operand has 1176 states, 1169 states have (on average 1.8092386655260906) internal successors, (2115), 1175 states have internal predecessors, (2115), 0 states have call successors, (0), 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 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:04,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:42:04,197 INFO L93 Difference]: Finished difference Result 2258 states and 3962 transitions. [2024-11-14 03:42:04,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:42:04,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-11-14 03:42:04,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:42:04,226 INFO L225 Difference]: With dead ends: 2258 [2024-11-14 03:42:04,226 INFO L226 Difference]: Without dead ends: 1414 [2024-11-14 03:42:04,235 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 [2024-11-14 03:42:04,240 INFO L432 NwaCegarLoop]: 930 mSDtfsCounter, 6426 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 1192 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6426 SdHoareTripleChecker+Valid, 1331 SdHoareTripleChecker+Invalid, 1248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:42:04,241 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6426 Valid, 1331 Invalid, 1248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1192 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-14 03:42:04,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1414 states. [2024-11-14 03:42:04,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1414 to 1408. [2024-11-14 03:42:04,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1408 states, 1402 states have (on average 1.3195435092724679) internal successors, (1850), 1407 states have internal predecessors, (1850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:04,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1850 transitions. [2024-11-14 03:42:04,380 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 1850 transitions. Word has length 50 [2024-11-14 03:42:04,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:42:04,380 INFO L471 AbstractCegarLoop]: Abstraction has 1408 states and 1850 transitions. [2024-11-14 03:42:04,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:04,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1850 transitions. [2024-11-14 03:42:04,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-14 03:42:04,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:04,388 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] [2024-11-14 03:42:04,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:42:04,388 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:42:04,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:04,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1129412729, now seen corresponding path program 1 times [2024-11-14 03:42:04,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:04,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459879557] [2024-11-14 03:42:04,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:04,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:42:04,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:42:04,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:42:04,686 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:42:04,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459879557] [2024-11-14 03:42:04,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459879557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:42:04,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:42:04,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:42:04,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916185072] [2024-11-14 03:42:04,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:42:04,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:42:04,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:42:04,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:42:04,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:42:04,691 INFO L87 Difference]: Start difference. First operand 1408 states and 1850 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) [2024-11-14 03:42:06,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:42:06,015 INFO L93 Difference]: Finished difference Result 2822 states and 3735 transitions. [2024-11-14 03:42:06,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:42:06,015 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 [2024-11-14 03:42:06,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:42:06,026 INFO L225 Difference]: With dead ends: 2822 [2024-11-14 03:42:06,028 INFO L226 Difference]: Without dead ends: 1946 [2024-11-14 03:42:06,030 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 [2024-11-14 03:42:06,031 INFO L432 NwaCegarLoop]: 568 mSDtfsCounter, 4436 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4436 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:42:06,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4436 Valid, 839 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-14 03:42:06,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1946 states. [2024-11-14 03:42:06,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1946 to 1934. [2024-11-14 03:42:06,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1934 states, 1928 states have (on average 1.329356846473029) internal successors, (2563), 1933 states have internal predecessors, (2563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:06,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1934 states to 1934 states and 2563 transitions. [2024-11-14 03:42:06,151 INFO L78 Accepts]: Start accepts. Automaton has 1934 states and 2563 transitions. Word has length 51 [2024-11-14 03:42:06,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:42:06,152 INFO L471 AbstractCegarLoop]: Abstraction has 1934 states and 2563 transitions. [2024-11-14 03:42:06,152 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) [2024-11-14 03:42:06,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1934 states and 2563 transitions. [2024-11-14 03:42:06,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-14 03:42:06,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:06,155 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] [2024-11-14 03:42:06,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 03:42:06,155 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:42:06,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:06,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1240611768, now seen corresponding path program 1 times [2024-11-14 03:42:06,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:06,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261171275] [2024-11-14 03:42:06,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:06,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:42:06,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:42:06,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:42:06,438 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:42:06,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261171275] [2024-11-14 03:42:06,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261171275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:42:06,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:42:06,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:42:06,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288429014] [2024-11-14 03:42:06,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:42:06,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:42:06,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:42:06,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:42:06,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:42:06,441 INFO L87 Difference]: Start difference. First operand 1934 states and 2563 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) [2024-11-14 03:42:07,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:42:07,593 INFO L93 Difference]: Finished difference Result 3907 states and 5217 transitions. [2024-11-14 03:42:07,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:42:07,594 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 [2024-11-14 03:42:07,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:42:07,605 INFO L225 Difference]: With dead ends: 3907 [2024-11-14 03:42:07,605 INFO L226 Difference]: Without dead ends: 2620 [2024-11-14 03:42:07,609 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 [2024-11-14 03:42:07,611 INFO L432 NwaCegarLoop]: 514 mSDtfsCounter, 3827 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3827 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:42:07,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3827 Valid, 731 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 03:42:07,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2620 states. [2024-11-14 03:42:07,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2620 to 2610. [2024-11-14 03:42:07,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2610 states, 2604 states have (on average 1.3198924731182795) internal successors, (3437), 2609 states have internal predecessors, (3437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:07,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2610 states to 2610 states and 3437 transitions. [2024-11-14 03:42:07,738 INFO L78 Accepts]: Start accepts. Automaton has 2610 states and 3437 transitions. Word has length 51 [2024-11-14 03:42:07,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:42:07,738 INFO L471 AbstractCegarLoop]: Abstraction has 2610 states and 3437 transitions. [2024-11-14 03:42:07,739 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) [2024-11-14 03:42:07,740 INFO L276 IsEmpty]: Start isEmpty. Operand 2610 states and 3437 transitions. [2024-11-14 03:42:07,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-14 03:42:07,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:07,744 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:42:07,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 03:42:07,745 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)] === [2024-11-14 03:42:07,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:07,746 INFO L85 PathProgramCache]: Analyzing trace with hash -40243798, now seen corresponding path program 1 times [2024-11-14 03:42:07,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:07,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916593752] [2024-11-14 03:42:07,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:07,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:42:07,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:42:08,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:42:08,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:42:08,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916593752] [2024-11-14 03:42:08,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916593752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:42:08,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:42:08,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:42:08,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294549050] [2024-11-14 03:42:08,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:42:08,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:42:08,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:42:08,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:42:08,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:42:08,270 INFO L87 Difference]: Start difference. First operand 2610 states and 3437 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:11,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:42:11,288 INFO L93 Difference]: Finished difference Result 4304 states and 5707 transitions. [2024-11-14 03:42:11,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 03:42:11,289 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2024-11-14 03:42:11,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:42:11,306 INFO L225 Difference]: With dead ends: 4304 [2024-11-14 03:42:11,306 INFO L226 Difference]: Without dead ends: 3931 [2024-11-14 03:42:11,308 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 [2024-11-14 03:42:11,312 INFO L432 NwaCegarLoop]: 600 mSDtfsCounter, 3326 mSDsluCounter, 2379 mSDsCounter, 0 mSdLazyCounter, 3575 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3326 SdHoareTripleChecker+Valid, 2979 SdHoareTripleChecker+Invalid, 3631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 3575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:42:11,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3326 Valid, 2979 Invalid, 3631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 3575 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-14 03:42:11,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3931 states. [2024-11-14 03:42:11,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3931 to 2610. [2024-11-14 03:42:11,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2610 states, 2604 states have (on average 1.3195084485407067) internal successors, (3436), 2609 states have internal predecessors, (3436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:11,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2610 states to 2610 states and 3436 transitions. [2024-11-14 03:42:11,410 INFO L78 Accepts]: Start accepts. Automaton has 2610 states and 3436 transitions. Word has length 52 [2024-11-14 03:42:11,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:42:11,410 INFO L471 AbstractCegarLoop]: Abstraction has 2610 states and 3436 transitions. [2024-11-14 03:42:11,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:11,411 INFO L276 IsEmpty]: Start isEmpty. Operand 2610 states and 3436 transitions. [2024-11-14 03:42:11,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-14 03:42:11,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:11,414 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:42:11,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 03:42:11,415 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)] === [2024-11-14 03:42:11,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:11,416 INFO L85 PathProgramCache]: Analyzing trace with hash -185533245, now seen corresponding path program 1 times [2024-11-14 03:42:11,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:11,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392676687] [2024-11-14 03:42:11,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:11,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:42:11,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:42:11,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:42:11,925 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:42:11,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392676687] [2024-11-14 03:42:11,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392676687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:42:11,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:42:11,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:42:11,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747148818] [2024-11-14 03:42:11,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:42:11,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:42:11,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:42:11,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:42:11,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:42:11,928 INFO L87 Difference]: Start difference. First operand 2610 states and 3436 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:13,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:42:13,963 INFO L93 Difference]: Finished difference Result 3214 states and 4195 transitions. [2024-11-14 03:42:13,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:42:13,963 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2024-11-14 03:42:13,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:42:13,973 INFO L225 Difference]: With dead ends: 3214 [2024-11-14 03:42:13,973 INFO L226 Difference]: Without dead ends: 3209 [2024-11-14 03:42:13,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:42:13,976 INFO L432 NwaCegarLoop]: 536 mSDtfsCounter, 3915 mSDsluCounter, 1719 mSDsCounter, 0 mSdLazyCounter, 2501 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3915 SdHoareTripleChecker+Valid, 2255 SdHoareTripleChecker+Invalid, 2540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:42:13,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3915 Valid, 2255 Invalid, 2540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2501 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-14 03:42:13,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3209 states. [2024-11-14 03:42:14,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3209 to 2610. [2024-11-14 03:42:14,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2610 states, 2604 states have (on average 1.3191244239631337) internal successors, (3435), 2609 states have internal predecessors, (3435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:14,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2610 states to 2610 states and 3435 transitions. [2024-11-14 03:42:14,048 INFO L78 Accepts]: Start accepts. Automaton has 2610 states and 3435 transitions. Word has length 52 [2024-11-14 03:42:14,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:42:14,049 INFO L471 AbstractCegarLoop]: Abstraction has 2610 states and 3435 transitions. [2024-11-14 03:42:14,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:14,050 INFO L276 IsEmpty]: Start isEmpty. Operand 2610 states and 3435 transitions. [2024-11-14 03:42:14,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-14 03:42:14,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:14,053 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:42:14,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 03:42:14,054 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)] === [2024-11-14 03:42:14,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:14,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1651109861, now seen corresponding path program 1 times [2024-11-14 03:42:14,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:14,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278836425] [2024-11-14 03:42:14,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:14,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:42:14,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:42:14,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:42:14,421 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:42:14,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278836425] [2024-11-14 03:42:14,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278836425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:42:14,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:42:14,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:42:14,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748877154] [2024-11-14 03:42:14,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:42:14,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:42:14,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:42:14,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:42:14,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:42:14,423 INFO L87 Difference]: Start difference. First operand 2610 states and 3435 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:16,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:42:16,072 INFO L93 Difference]: Finished difference Result 3596 states and 4772 transitions. [2024-11-14 03:42:16,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:42:16,076 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2024-11-14 03:42:16,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:42:16,083 INFO L225 Difference]: With dead ends: 3596 [2024-11-14 03:42:16,084 INFO L226 Difference]: Without dead ends: 3125 [2024-11-14 03:42:16,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:42:16,086 INFO L432 NwaCegarLoop]: 519 mSDtfsCounter, 3027 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 2291 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3027 SdHoareTripleChecker+Valid, 2307 SdHoareTripleChecker+Invalid, 2297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:42:16,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3027 Valid, 2307 Invalid, 2297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2291 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-14 03:42:16,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3125 states. [2024-11-14 03:42:16,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3125 to 2610. [2024-11-14 03:42:16,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2610 states, 2604 states have (on average 1.3187403993855606) internal successors, (3434), 2609 states have internal predecessors, (3434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:16,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2610 states to 2610 states and 3434 transitions. [2024-11-14 03:42:16,141 INFO L78 Accepts]: Start accepts. Automaton has 2610 states and 3434 transitions. Word has length 52 [2024-11-14 03:42:16,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:42:16,141 INFO L471 AbstractCegarLoop]: Abstraction has 2610 states and 3434 transitions. [2024-11-14 03:42:16,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:16,141 INFO L276 IsEmpty]: Start isEmpty. Operand 2610 states and 3434 transitions. [2024-11-14 03:42:16,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-14 03:42:16,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:16,144 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] [2024-11-14 03:42:16,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 03:42:16,144 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:42:16,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:16,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1538413769, now seen corresponding path program 1 times [2024-11-14 03:42:16,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:16,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226981383] [2024-11-14 03:42:16,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:16,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:42:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:42:16,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:42:16,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:42:16,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226981383] [2024-11-14 03:42:16,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226981383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:42:16,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:42:16,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:42:16,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193676392] [2024-11-14 03:42:16,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:42:16,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:42:16,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:42:16,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:42:16,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:42:16,233 INFO L87 Difference]: Start difference. First operand 2610 states and 3434 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2024-11-14 03:42:16,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:42:16,340 INFO L93 Difference]: Finished difference Result 3230 states and 4323 transitions. [2024-11-14 03:42:16,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:42:16,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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 [2024-11-14 03:42:16,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:42:16,347 INFO L225 Difference]: With dead ends: 3230 [2024-11-14 03:42:16,347 INFO L226 Difference]: Without dead ends: 2545 [2024-11-14 03:42:16,349 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 [2024-11-14 03:42:16,349 INFO L432 NwaCegarLoop]: 998 mSDtfsCounter, 473 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 1537 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:42:16,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [473 Valid, 1537 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:42:16,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2545 states. [2024-11-14 03:42:16,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2545 to 2543. [2024-11-14 03:42:16,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2543 states, 2537 states have (on average 1.317303902246748) internal successors, (3342), 2542 states have internal predecessors, (3342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:16,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2543 states to 2543 states and 3342 transitions. [2024-11-14 03:42:16,398 INFO L78 Accepts]: Start accepts. Automaton has 2543 states and 3342 transitions. Word has length 53 [2024-11-14 03:42:16,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:42:16,399 INFO L471 AbstractCegarLoop]: Abstraction has 2543 states and 3342 transitions. [2024-11-14 03:42:16,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2024-11-14 03:42:16,399 INFO L276 IsEmpty]: Start isEmpty. Operand 2543 states and 3342 transitions. [2024-11-14 03:42:16,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-14 03:42:16,401 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:16,401 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] [2024-11-14 03:42:16,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 03:42:16,402 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)] === [2024-11-14 03:42:16,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:16,402 INFO L85 PathProgramCache]: Analyzing trace with hash -651733059, now seen corresponding path program 1 times [2024-11-14 03:42:16,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:16,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985724154] [2024-11-14 03:42:16,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:16,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:42:16,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:42:16,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:42:16,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:42:16,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985724154] [2024-11-14 03:42:16,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985724154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:42:16,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:42:16,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:42:16,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659496603] [2024-11-14 03:42:16,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:42:16,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:42:16,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:42:16,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:42:16,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:42:16,515 INFO L87 Difference]: Start difference. First operand 2543 states and 3342 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2024-11-14 03:42:16,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:42:16,621 INFO L93 Difference]: Finished difference Result 3576 states and 4836 transitions. [2024-11-14 03:42:16,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:42:16,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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 [2024-11-14 03:42:16,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:42:16,629 INFO L225 Difference]: With dead ends: 3576 [2024-11-14 03:42:16,629 INFO L226 Difference]: Without dead ends: 2713 [2024-11-14 03:42:16,631 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 [2024-11-14 03:42:16,632 INFO L432 NwaCegarLoop]: 984 mSDtfsCounter, 485 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 1500 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:42:16,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 1500 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:42:16,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2713 states. [2024-11-14 03:42:16,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2713 to 2711. [2024-11-14 03:42:16,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2711 states, 2705 states have (on average 1.333456561922366) internal successors, (3607), 2710 states have internal predecessors, (3607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:16,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2711 states to 2711 states and 3607 transitions. [2024-11-14 03:42:16,681 INFO L78 Accepts]: Start accepts. Automaton has 2711 states and 3607 transitions. Word has length 53 [2024-11-14 03:42:16,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:42:16,682 INFO L471 AbstractCegarLoop]: Abstraction has 2711 states and 3607 transitions. [2024-11-14 03:42:16,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2024-11-14 03:42:16,682 INFO L276 IsEmpty]: Start isEmpty. Operand 2711 states and 3607 transitions. [2024-11-14 03:42:16,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-14 03:42:16,684 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:16,684 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] [2024-11-14 03:42:16,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 03:42:16,685 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:42:16,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:16,685 INFO L85 PathProgramCache]: Analyzing trace with hash 408369717, now seen corresponding path program 1 times [2024-11-14 03:42:16,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:16,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568354519] [2024-11-14 03:42:16,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:16,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:42:16,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:42:16,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:42:16,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:42:16,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568354519] [2024-11-14 03:42:16,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568354519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:42:16,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:42:16,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:42:16,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053177319] [2024-11-14 03:42:16,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:42:16,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:42:16,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:42:16,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:42:16,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:42:16,772 INFO L87 Difference]: Start difference. First operand 2711 states and 3607 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2024-11-14 03:42:16,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:42:16,940 INFO L93 Difference]: Finished difference Result 5492 states and 7466 transitions. [2024-11-14 03:42:16,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:42:16,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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 [2024-11-14 03:42:16,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:42:16,951 INFO L225 Difference]: With dead ends: 5492 [2024-11-14 03:42:16,951 INFO L226 Difference]: Without dead ends: 3755 [2024-11-14 03:42:16,953 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 [2024-11-14 03:42:16,954 INFO L432 NwaCegarLoop]: 1018 mSDtfsCounter, 542 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:42:16,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [542 Valid, 1694 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:42:16,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3755 states. [2024-11-14 03:42:17,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3755 to 3749. [2024-11-14 03:42:17,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3749 states, 3743 states have (on average 1.3299492385786802) internal successors, (4978), 3748 states have internal predecessors, (4978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:17,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3749 states to 3749 states and 4978 transitions. [2024-11-14 03:42:17,016 INFO L78 Accepts]: Start accepts. Automaton has 3749 states and 4978 transitions. Word has length 53 [2024-11-14 03:42:17,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:42:17,016 INFO L471 AbstractCegarLoop]: Abstraction has 3749 states and 4978 transitions. [2024-11-14 03:42:17,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2024-11-14 03:42:17,017 INFO L276 IsEmpty]: Start isEmpty. Operand 3749 states and 4978 transitions. [2024-11-14 03:42:17,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-14 03:42:17,019 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:17,019 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] [2024-11-14 03:42:17,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 03:42:17,020 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)] === [2024-11-14 03:42:17,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:17,020 INFO L85 PathProgramCache]: Analyzing trace with hash 888209781, now seen corresponding path program 1 times [2024-11-14 03:42:17,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:17,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094197060] [2024-11-14 03:42:17,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:17,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:42:17,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:42:17,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:42:17,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:42:17,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094197060] [2024-11-14 03:42:17,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094197060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:42:17,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:42:17,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:42:17,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311369327] [2024-11-14 03:42:17,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:42:17,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:42:17,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:42:17,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:42:17,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:42:17,095 INFO L87 Difference]: Start difference. First operand 3749 states and 4978 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) [2024-11-14 03:42:17,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:42:17,251 INFO L93 Difference]: Finished difference Result 6645 states and 8916 transitions. [2024-11-14 03:42:17,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:42:17,252 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 [2024-11-14 03:42:17,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:42:17,261 INFO L225 Difference]: With dead ends: 6645 [2024-11-14 03:42:17,261 INFO L226 Difference]: Without dead ends: 3766 [2024-11-14 03:42:17,264 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 [2024-11-14 03:42:17,265 INFO L432 NwaCegarLoop]: 747 mSDtfsCounter, 739 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:42:17,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [739 Valid, 1087 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:42:17,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3766 states. [2024-11-14 03:42:17,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3766 to 3041. [2024-11-14 03:42:17,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3041 states, 3036 states have (on average 1.3346508563899868) internal successors, (4052), 3040 states have internal predecessors, (4052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:17,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3041 states to 3041 states and 4052 transitions. [2024-11-14 03:42:17,345 INFO L78 Accepts]: Start accepts. Automaton has 3041 states and 4052 transitions. Word has length 54 [2024-11-14 03:42:17,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:42:17,345 INFO L471 AbstractCegarLoop]: Abstraction has 3041 states and 4052 transitions. [2024-11-14 03:42:17,345 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) [2024-11-14 03:42:17,345 INFO L276 IsEmpty]: Start isEmpty. Operand 3041 states and 4052 transitions. [2024-11-14 03:42:17,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-14 03:42:17,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:17,348 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] [2024-11-14 03:42:17,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 03:42:17,348 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:42:17,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:17,348 INFO L85 PathProgramCache]: Analyzing trace with hash -290391896, now seen corresponding path program 1 times [2024-11-14 03:42:17,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:17,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639000860] [2024-11-14 03:42:17,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:17,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:42:17,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:42:17,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:42:17,418 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:42:17,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639000860] [2024-11-14 03:42:17,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639000860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:42:17,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:42:17,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:42:17,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139915829] [2024-11-14 03:42:17,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:42:17,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:42:17,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:42:17,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:42:17,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:42:17,422 INFO L87 Difference]: Start difference. First operand 3041 states and 4052 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) [2024-11-14 03:42:17,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:42:17,556 INFO L93 Difference]: Finished difference Result 5512 states and 7456 transitions. [2024-11-14 03:42:17,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:42:17,557 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 [2024-11-14 03:42:17,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:42:17,573 INFO L225 Difference]: With dead ends: 5512 [2024-11-14 03:42:17,573 INFO L226 Difference]: Without dead ends: 3109 [2024-11-14 03:42:17,576 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 [2024-11-14 03:42:17,577 INFO L432 NwaCegarLoop]: 636 mSDtfsCounter, 564 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:42:17,577 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [564 Valid, 871 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:42:17,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2024-11-14 03:42:17,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 2537. [2024-11-14 03:42:17,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2537 states, 2533 states have (on average 1.3359652585866562) internal successors, (3384), 2536 states have internal predecessors, (3384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:17,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2537 states to 2537 states and 3384 transitions. [2024-11-14 03:42:17,619 INFO L78 Accepts]: Start accepts. Automaton has 2537 states and 3384 transitions. Word has length 54 [2024-11-14 03:42:17,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:42:17,619 INFO L471 AbstractCegarLoop]: Abstraction has 2537 states and 3384 transitions. [2024-11-14 03:42:17,619 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) [2024-11-14 03:42:17,620 INFO L276 IsEmpty]: Start isEmpty. Operand 2537 states and 3384 transitions. [2024-11-14 03:42:17,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-14 03:42:17,621 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:17,621 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] [2024-11-14 03:42:17,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-14 03:42:17,622 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:42:17,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:17,622 INFO L85 PathProgramCache]: Analyzing trace with hash -364061502, now seen corresponding path program 1 times [2024-11-14 03:42:17,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:17,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468210727] [2024-11-14 03:42:17,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:17,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:42:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:42:17,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:42:17,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:42:17,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468210727] [2024-11-14 03:42:17,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468210727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:42:17,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:42:17,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:42:17,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816047817] [2024-11-14 03:42:17,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:42:17,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:42:17,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:42:17,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:42:17,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:42:17,698 INFO L87 Difference]: Start difference. First operand 2537 states and 3384 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) [2024-11-14 03:42:17,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:42:17,836 INFO L93 Difference]: Finished difference Result 4631 states and 6254 transitions. [2024-11-14 03:42:17,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:42:17,836 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 [2024-11-14 03:42:17,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:42:17,842 INFO L225 Difference]: With dead ends: 4631 [2024-11-14 03:42:17,842 INFO L226 Difference]: Without dead ends: 2401 [2024-11-14 03:42:17,845 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 [2024-11-14 03:42:17,845 INFO L432 NwaCegarLoop]: 554 mSDtfsCounter, 474 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:42:17,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 747 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:42:17,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2401 states. [2024-11-14 03:42:17,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2401 to 2111. [2024-11-14 03:42:17,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2111 states, 2107 states have (on average 1.3412434741338395) internal successors, (2826), 2110 states have internal predecessors, (2826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:17,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2111 states to 2111 states and 2826 transitions. [2024-11-14 03:42:17,878 INFO L78 Accepts]: Start accepts. Automaton has 2111 states and 2826 transitions. Word has length 54 [2024-11-14 03:42:17,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:42:17,878 INFO L471 AbstractCegarLoop]: Abstraction has 2111 states and 2826 transitions. [2024-11-14 03:42:17,878 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) [2024-11-14 03:42:17,879 INFO L276 IsEmpty]: Start isEmpty. Operand 2111 states and 2826 transitions. [2024-11-14 03:42:17,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-14 03:42:17,880 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:17,880 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] [2024-11-14 03:42:17,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-14 03:42:17,880 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:42:17,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:17,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1325150352, now seen corresponding path program 1 times [2024-11-14 03:42:17,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:17,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195855894] [2024-11-14 03:42:17,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:17,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:42:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:42:18,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:42:18,709 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:42:18,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195855894] [2024-11-14 03:42:18,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195855894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:42:18,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:42:18,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-14 03:42:18,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114439734] [2024-11-14 03:42:18,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:42:18,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:42:18,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:42:18,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:42:18,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:42:18,711 INFO L87 Difference]: Start difference. First operand 2111 states and 2826 transitions. Second operand has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 11 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) [2024-11-14 03:42:19,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:42:19,844 INFO L93 Difference]: Finished difference Result 4156 states and 5586 transitions. [2024-11-14 03:42:19,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 03:42:19,844 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 11 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 [2024-11-14 03:42:19,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:42:19,852 INFO L225 Difference]: With dead ends: 4156 [2024-11-14 03:42:19,853 INFO L226 Difference]: Without dead ends: 3925 [2024-11-14 03:42:19,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2024-11-14 03:42:19,855 INFO L432 NwaCegarLoop]: 541 mSDtfsCounter, 3155 mSDsluCounter, 2379 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3155 SdHoareTripleChecker+Valid, 2920 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:42:19,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3155 Valid, 2920 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 03:42:19,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3925 states. [2024-11-14 03:42:19,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3925 to 2090. [2024-11-14 03:42:19,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2090 states, 2087 states have (on average 1.3416387158600862) internal successors, (2800), 2089 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:19,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2090 states to 2090 states and 2800 transitions. [2024-11-14 03:42:19,911 INFO L78 Accepts]: Start accepts. Automaton has 2090 states and 2800 transitions. Word has length 55 [2024-11-14 03:42:19,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:42:19,912 INFO L471 AbstractCegarLoop]: Abstraction has 2090 states and 2800 transitions. [2024-11-14 03:42:19,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 11 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) [2024-11-14 03:42:19,912 INFO L276 IsEmpty]: Start isEmpty. Operand 2090 states and 2800 transitions. [2024-11-14 03:42:19,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-14 03:42:19,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:19,914 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] [2024-11-14 03:42:19,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-14 03:42:19,914 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)] === [2024-11-14 03:42:19,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:19,915 INFO L85 PathProgramCache]: Analyzing trace with hash -548611186, now seen corresponding path program 1 times [2024-11-14 03:42:19,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:19,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267265236] [2024-11-14 03:42:19,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:19,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:42:19,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:42:21,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:42:21,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:42:21,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267265236] [2024-11-14 03:42:21,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267265236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:42:21,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:42:21,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-14 03:42:21,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382510850] [2024-11-14 03:42:21,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:42:21,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-14 03:42:21,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:42:21,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-14 03:42:21,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2024-11-14 03:42:21,210 INFO L87 Difference]: Start difference. First operand 2090 states and 2800 transitions. Second operand has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 18 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) [2024-11-14 03:42:23,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:42:23,772 INFO L93 Difference]: Finished difference Result 2897 states and 3836 transitions. [2024-11-14 03:42:23,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-14 03:42:23,773 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 18 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 [2024-11-14 03:42:23,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:42:23,777 INFO L225 Difference]: With dead ends: 2897 [2024-11-14 03:42:23,777 INFO L226 Difference]: Without dead ends: 2893 [2024-11-14 03:42:23,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=214, Invalid=842, Unknown=0, NotChecked=0, Total=1056 [2024-11-14 03:42:23,779 INFO L432 NwaCegarLoop]: 477 mSDtfsCounter, 2525 mSDsluCounter, 4826 mSDsCounter, 0 mSdLazyCounter, 2308 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2525 SdHoareTripleChecker+Valid, 5303 SdHoareTripleChecker+Invalid, 2314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:42:23,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2525 Valid, 5303 Invalid, 2314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2308 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-14 03:42:23,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states. [2024-11-14 03:42:23,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 2097. [2024-11-14 03:42:23,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2097 states, 2094 states have (on average 1.3414517669531996) internal successors, (2809), 2096 states have internal predecessors, (2809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:23,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2097 states to 2097 states and 2809 transitions. [2024-11-14 03:42:23,809 INFO L78 Accepts]: Start accepts. Automaton has 2097 states and 2809 transitions. Word has length 55 [2024-11-14 03:42:23,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:42:23,810 INFO L471 AbstractCegarLoop]: Abstraction has 2097 states and 2809 transitions. [2024-11-14 03:42:23,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 18 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) [2024-11-14 03:42:23,810 INFO L276 IsEmpty]: Start isEmpty. Operand 2097 states and 2809 transitions. [2024-11-14 03:42:23,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-14 03:42:23,811 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:23,811 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] [2024-11-14 03:42:23,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-14 03:42:23,812 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)] === [2024-11-14 03:42:23,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:23,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1104256696, now seen corresponding path program 1 times [2024-11-14 03:42:23,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:23,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724681672] [2024-11-14 03:42:23,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:23,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:42:23,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:42:24,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:42:24,984 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:42:24,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724681672] [2024-11-14 03:42:24,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724681672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:42:24,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:42:24,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-14 03:42:24,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627588728] [2024-11-14 03:42:24,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:42:24,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-14 03:42:24,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:42:24,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-14 03:42:24,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2024-11-14 03:42:24,986 INFO L87 Difference]: Start difference. First operand 2097 states and 2809 transitions. Second operand has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 18 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) [2024-11-14 03:42:27,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:42:27,572 INFO L93 Difference]: Finished difference Result 3604 states and 4807 transitions. [2024-11-14 03:42:27,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-14 03:42:27,573 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 18 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 [2024-11-14 03:42:27,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:42:27,578 INFO L225 Difference]: With dead ends: 3604 [2024-11-14 03:42:27,579 INFO L226 Difference]: Without dead ends: 3598 [2024-11-14 03:42:27,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=260, Invalid=930, Unknown=0, NotChecked=0, Total=1190 [2024-11-14 03:42:27,581 INFO L432 NwaCegarLoop]: 485 mSDtfsCounter, 2936 mSDsluCounter, 5324 mSDsCounter, 0 mSdLazyCounter, 2367 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2936 SdHoareTripleChecker+Valid, 5809 SdHoareTripleChecker+Invalid, 2374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:42:27,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2936 Valid, 5809 Invalid, 2374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2367 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-14 03:42:27,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3598 states. [2024-11-14 03:42:27,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3598 to 2097. [2024-11-14 03:42:27,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2097 states, 2094 states have (on average 1.340974212034384) internal successors, (2808), 2096 states have internal predecessors, (2808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:27,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2097 states to 2097 states and 2808 transitions. [2024-11-14 03:42:27,612 INFO L78 Accepts]: Start accepts. Automaton has 2097 states and 2808 transitions. Word has length 55 [2024-11-14 03:42:27,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:42:27,613 INFO L471 AbstractCegarLoop]: Abstraction has 2097 states and 2808 transitions. [2024-11-14 03:42:27,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 18 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) [2024-11-14 03:42:27,613 INFO L276 IsEmpty]: Start isEmpty. Operand 2097 states and 2808 transitions. [2024-11-14 03:42:27,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-14 03:42:27,614 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:27,614 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] [2024-11-14 03:42:27,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-14 03:42:27,615 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:42:27,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:27,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1059586101, now seen corresponding path program 1 times [2024-11-14 03:42:27,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:27,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766166277] [2024-11-14 03:42:27,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:27,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:42:27,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:42:28,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:42:28,215 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:42:28,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766166277] [2024-11-14 03:42:28,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766166277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:42:28,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:42:28,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-14 03:42:28,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031229584] [2024-11-14 03:42:28,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:42:28,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:42:28,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:42:28,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:42:28,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:42:28,217 INFO L87 Difference]: Start difference. First operand 2097 states and 2808 transitions. Second operand has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 11 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) [2024-11-14 03:42:29,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:42:29,377 INFO L93 Difference]: Finished difference Result 4142 states and 5567 transitions. [2024-11-14 03:42:29,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:42:29,379 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 11 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 [2024-11-14 03:42:29,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:42:29,386 INFO L225 Difference]: With dead ends: 4142 [2024-11-14 03:42:29,386 INFO L226 Difference]: Without dead ends: 3920 [2024-11-14 03:42:29,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-14 03:42:29,388 INFO L432 NwaCegarLoop]: 523 mSDtfsCounter, 3053 mSDsluCounter, 2716 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3053 SdHoareTripleChecker+Valid, 3239 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:42:29,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3053 Valid, 3239 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 03:42:29,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2024-11-14 03:42:29,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 2085. [2024-11-14 03:42:29,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2085 states, 2083 states have (on average 1.341814690350456) internal successors, (2795), 2084 states have internal predecessors, (2795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:29,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2085 states to 2085 states and 2795 transitions. [2024-11-14 03:42:29,428 INFO L78 Accepts]: Start accepts. Automaton has 2085 states and 2795 transitions. Word has length 55 [2024-11-14 03:42:29,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:42:29,428 INFO L471 AbstractCegarLoop]: Abstraction has 2085 states and 2795 transitions. [2024-11-14 03:42:29,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 11 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) [2024-11-14 03:42:29,429 INFO L276 IsEmpty]: Start isEmpty. Operand 2085 states and 2795 transitions. [2024-11-14 03:42:29,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-14 03:42:29,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:29,431 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] [2024-11-14 03:42:29,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-14 03:42:29,431 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)] === [2024-11-14 03:42:29,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:29,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1539821484, now seen corresponding path program 1 times [2024-11-14 03:42:29,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:29,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126674034] [2024-11-14 03:42:29,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:29,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:42:29,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:42:30,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:42:30,148 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:42:30,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126674034] [2024-11-14 03:42:30,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126674034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:42:30,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:42:30,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-14 03:42:30,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472345021] [2024-11-14 03:42:30,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:42:30,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-14 03:42:30,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:42:30,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-14 03:42:30,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-14 03:42:30,149 INFO L87 Difference]: Start difference. First operand 2085 states and 2795 transitions. Second operand has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 14 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) [2024-11-14 03:42:31,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:42:31,786 INFO L93 Difference]: Finished difference Result 4227 states and 5691 transitions. [2024-11-14 03:42:31,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-14 03:42:31,786 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 14 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 [2024-11-14 03:42:31,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:42:31,794 INFO L225 Difference]: With dead ends: 4227 [2024-11-14 03:42:31,794 INFO L226 Difference]: Without dead ends: 4223 [2024-11-14 03:42:31,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=188, Invalid=568, Unknown=0, NotChecked=0, Total=756 [2024-11-14 03:42:31,796 INFO L432 NwaCegarLoop]: 468 mSDtfsCounter, 3562 mSDsluCounter, 3096 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3562 SdHoareTripleChecker+Valid, 3564 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:42:31,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3562 Valid, 3564 Invalid, 1297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 03:42:31,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4223 states. [2024-11-14 03:42:31,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4223 to 2074. [2024-11-14 03:42:31,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2074 states, 2073 states have (on average 1.3420164013506994) internal successors, (2782), 2073 states have internal predecessors, (2782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:31,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2074 states to 2074 states and 2782 transitions. [2024-11-14 03:42:31,832 INFO L78 Accepts]: Start accepts. Automaton has 2074 states and 2782 transitions. Word has length 56 [2024-11-14 03:42:31,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:42:31,832 INFO L471 AbstractCegarLoop]: Abstraction has 2074 states and 2782 transitions. [2024-11-14 03:42:31,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 14 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) [2024-11-14 03:42:31,832 INFO L276 IsEmpty]: Start isEmpty. Operand 2074 states and 2782 transitions. [2024-11-14 03:42:31,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-14 03:42:31,834 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:31,834 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:42:31,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-14 03:42:31,834 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:42:31,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:31,834 INFO L85 PathProgramCache]: Analyzing trace with hash -2005970313, now seen corresponding path program 1 times [2024-11-14 03:42:31,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:31,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972321045] [2024-11-14 03:42:31,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:31,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:42:31,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:42:31,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:42:31,960 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:42:31,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972321045] [2024-11-14 03:42:31,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972321045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:42:31,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:42:31,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:42:31,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398697812] [2024-11-14 03:42:31,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:42:31,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:42:31,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:42:31,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:42:31,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:42:31,962 INFO L87 Difference]: Start difference. First operand 2074 states and 2782 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:32,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:42:32,058 INFO L93 Difference]: Finished difference Result 4530 states and 6242 transitions. [2024-11-14 03:42:32,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:42:32,058 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-14 03:42:32,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:42:32,064 INFO L225 Difference]: With dead ends: 4530 [2024-11-14 03:42:32,064 INFO L226 Difference]: Without dead ends: 2960 [2024-11-14 03:42:32,066 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 [2024-11-14 03:42:32,066 INFO L432 NwaCegarLoop]: 518 mSDtfsCounter, 291 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:42:32,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 722 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:42:32,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2960 states. [2024-11-14 03:42:32,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2960 to 2696. [2024-11-14 03:42:32,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2696 states, 2695 states have (on average 1.3450834879406308) internal successors, (3625), 2695 states have internal predecessors, (3625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:32,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2696 states to 2696 states and 3625 transitions. [2024-11-14 03:42:32,102 INFO L78 Accepts]: Start accepts. Automaton has 2696 states and 3625 transitions. Word has length 58 [2024-11-14 03:42:32,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:42:32,102 INFO L471 AbstractCegarLoop]: Abstraction has 2696 states and 3625 transitions. [2024-11-14 03:42:32,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:32,103 INFO L276 IsEmpty]: Start isEmpty. Operand 2696 states and 3625 transitions. [2024-11-14 03:42:32,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-14 03:42:32,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:32,104 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:42:32,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-14 03:42:32,104 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)] === [2024-11-14 03:42:32,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:32,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1753133230, now seen corresponding path program 1 times [2024-11-14 03:42:32,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:32,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095290044] [2024-11-14 03:42:32,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:32,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:42:32,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:42:32,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:42:32,244 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:42:32,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095290044] [2024-11-14 03:42:32,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095290044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:42:32,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:42:32,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:42:32,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391839074] [2024-11-14 03:42:32,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:42:32,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:42:32,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:42:32,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:42:32,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:42:32,246 INFO L87 Difference]: Start difference. First operand 2696 states and 3625 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:32,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:42:32,367 INFO L93 Difference]: Finished difference Result 4622 states and 6288 transitions. [2024-11-14 03:42:32,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:42:32,368 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-14 03:42:32,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:42:32,371 INFO L225 Difference]: With dead ends: 4622 [2024-11-14 03:42:32,371 INFO L226 Difference]: Without dead ends: 2420 [2024-11-14 03:42:32,373 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 [2024-11-14 03:42:32,374 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 921 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 921 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:42:32,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [921 Valid, 742 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:42:32,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2420 states. [2024-11-14 03:42:32,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2420 to 2416. [2024-11-14 03:42:32,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2416 states, 2415 states have (on average 1.3333333333333333) internal successors, (3220), 2415 states have internal predecessors, (3220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:32,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2416 states to 2416 states and 3220 transitions. [2024-11-14 03:42:32,417 INFO L78 Accepts]: Start accepts. Automaton has 2416 states and 3220 transitions. Word has length 58 [2024-11-14 03:42:32,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:42:32,418 INFO L471 AbstractCegarLoop]: Abstraction has 2416 states and 3220 transitions. [2024-11-14 03:42:32,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:32,418 INFO L276 IsEmpty]: Start isEmpty. Operand 2416 states and 3220 transitions. [2024-11-14 03:42:32,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-14 03:42:32,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:32,420 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:42:32,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-14 03:42:32,420 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)] === [2024-11-14 03:42:32,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:32,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1952606107, now seen corresponding path program 1 times [2024-11-14 03:42:32,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:32,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833282516] [2024-11-14 03:42:32,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:32,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:42:32,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:42:32,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:42:32,578 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:42:32,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833282516] [2024-11-14 03:42:32,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833282516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:42:32,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:42:32,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:42:32,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988259988] [2024-11-14 03:42:32,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:42:32,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:42:32,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:42:32,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:42:32,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:42:32,580 INFO L87 Difference]: Start difference. First operand 2416 states and 3220 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) [2024-11-14 03:42:32,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:42:32,683 INFO L93 Difference]: Finished difference Result 5359 states and 7297 transitions. [2024-11-14 03:42:32,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:42:32,684 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 [2024-11-14 03:42:32,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:42:32,692 INFO L225 Difference]: With dead ends: 5359 [2024-11-14 03:42:32,692 INFO L226 Difference]: Without dead ends: 3571 [2024-11-14 03:42:32,694 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 [2024-11-14 03:42:32,695 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 229 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:42:32,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 718 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:42:32,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3571 states. [2024-11-14 03:42:32,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3571 to 3217. [2024-11-14 03:42:32,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3217 states, 3216 states have (on average 1.3308457711442787) internal successors, (4280), 3216 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:32,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3217 states to 3217 states and 4280 transitions. [2024-11-14 03:42:32,738 INFO L78 Accepts]: Start accepts. Automaton has 3217 states and 4280 transitions. Word has length 60 [2024-11-14 03:42:32,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:42:32,739 INFO L471 AbstractCegarLoop]: Abstraction has 3217 states and 4280 transitions. [2024-11-14 03:42:32,739 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) [2024-11-14 03:42:32,739 INFO L276 IsEmpty]: Start isEmpty. Operand 3217 states and 4280 transitions. [2024-11-14 03:42:32,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-14 03:42:32,740 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:32,741 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:42:32,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-14 03:42:32,741 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)] === [2024-11-14 03:42:32,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:32,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1916224781, now seen corresponding path program 1 times [2024-11-14 03:42:32,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:32,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392944704] [2024-11-14 03:42:32,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:32,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:42:32,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:42:33,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:42:33,140 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:42:33,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392944704] [2024-11-14 03:42:33,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392944704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:42:33,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:42:33,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-14 03:42:33,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249336976] [2024-11-14 03:42:33,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:42:33,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 03:42:33,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:42:33,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 03:42:33,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:42:33,142 INFO L87 Difference]: Start difference. First operand 3217 states and 4280 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:33,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:42:33,512 INFO L93 Difference]: Finished difference Result 6520 states and 8738 transitions. [2024-11-14 03:42:33,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 03:42:33,512 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-14 03:42:33,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:42:33,526 INFO L225 Difference]: With dead ends: 6520 [2024-11-14 03:42:33,527 INFO L226 Difference]: Without dead ends: 6518 [2024-11-14 03:42:33,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-14 03:42:33,530 INFO L432 NwaCegarLoop]: 432 mSDtfsCounter, 1248 mSDsluCounter, 2076 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 2508 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:42:33,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1248 Valid, 2508 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:42:33,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6518 states. [2024-11-14 03:42:33,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6518 to 3741. [2024-11-14 03:42:33,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3741 states, 3740 states have (on average 1.324331550802139) internal successors, (4953), 3740 states have internal predecessors, (4953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:33,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3741 states to 3741 states and 4953 transitions. [2024-11-14 03:42:33,595 INFO L78 Accepts]: Start accepts. Automaton has 3741 states and 4953 transitions. Word has length 64 [2024-11-14 03:42:33,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:42:33,596 INFO L471 AbstractCegarLoop]: Abstraction has 3741 states and 4953 transitions. [2024-11-14 03:42:33,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:33,596 INFO L276 IsEmpty]: Start isEmpty. Operand 3741 states and 4953 transitions. [2024-11-14 03:42:33,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-14 03:42:33,600 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:33,600 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:42:33,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-14 03:42:33,600 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)] === [2024-11-14 03:42:33,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:33,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1274425590, now seen corresponding path program 1 times [2024-11-14 03:42:33,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:33,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622385870] [2024-11-14 03:42:33,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:33,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:42:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:42:34,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:42:34,019 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:42:34,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622385870] [2024-11-14 03:42:34,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622385870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:42:34,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:42:34,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-14 03:42:34,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196417684] [2024-11-14 03:42:34,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:42:34,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 03:42:34,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:42:34,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 03:42:34,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:42:34,021 INFO L87 Difference]: Start difference. First operand 3741 states and 4953 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:34,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:42:34,302 INFO L93 Difference]: Finished difference Result 6749 states and 9022 transitions. [2024-11-14 03:42:34,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 03:42:34,302 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-14 03:42:34,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:42:34,316 INFO L225 Difference]: With dead ends: 6749 [2024-11-14 03:42:34,316 INFO L226 Difference]: Without dead ends: 6747 [2024-11-14 03:42:34,318 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 [2024-11-14 03:42:34,323 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 896 mSDsluCounter, 2040 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 2520 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:42:34,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 2520 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:42:34,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6747 states. [2024-11-14 03:42:34,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6747 to 4033. [2024-11-14 03:42:34,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4033 states, 4032 states have (on average 1.3209325396825398) internal successors, (5326), 4032 states have internal predecessors, (5326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:34,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4033 states to 4033 states and 5326 transitions. [2024-11-14 03:42:34,416 INFO L78 Accepts]: Start accepts. Automaton has 4033 states and 5326 transitions. Word has length 70 [2024-11-14 03:42:34,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:42:34,416 INFO L471 AbstractCegarLoop]: Abstraction has 4033 states and 5326 transitions. [2024-11-14 03:42:34,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:34,417 INFO L276 IsEmpty]: Start isEmpty. Operand 4033 states and 5326 transitions. [2024-11-14 03:42:34,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-14 03:42:34,419 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:34,419 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] [2024-11-14 03:42:34,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-14 03:42:34,419 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)] === [2024-11-14 03:42:34,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:34,420 INFO L85 PathProgramCache]: Analyzing trace with hash 2077054338, now seen corresponding path program 1 times [2024-11-14 03:42:34,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:34,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978317961] [2024-11-14 03:42:34,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:34,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:42:34,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:42:34,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:42:34,842 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:42:34,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978317961] [2024-11-14 03:42:34,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978317961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:42:34,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:42:34,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-14 03:42:34,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531592755] [2024-11-14 03:42:34,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:42:34,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 03:42:34,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:42:34,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 03:42:34,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:42:34,845 INFO L87 Difference]: Start difference. First operand 4033 states and 5326 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) [2024-11-14 03:42:35,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:42:35,156 INFO L93 Difference]: Finished difference Result 6843 states and 9123 transitions. [2024-11-14 03:42:35,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 03:42:35,156 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 [2024-11-14 03:42:35,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:42:35,170 INFO L225 Difference]: With dead ends: 6843 [2024-11-14 03:42:35,170 INFO L226 Difference]: Without dead ends: 6841 [2024-11-14 03:42:35,172 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 [2024-11-14 03:42:35,173 INFO L432 NwaCegarLoop]: 482 mSDtfsCounter, 826 mSDsluCounter, 2287 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 2769 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:42:35,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [826 Valid, 2769 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:42:35,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6841 states. [2024-11-14 03:42:35,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6841 to 4323. [2024-11-14 03:42:35,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4323 states, 4322 states have (on average 1.3181397501156873) internal successors, (5697), 4322 states have internal predecessors, (5697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:35,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4323 states to 4323 states and 5697 transitions. [2024-11-14 03:42:35,243 INFO L78 Accepts]: Start accepts. Automaton has 4323 states and 5697 transitions. Word has length 71 [2024-11-14 03:42:35,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:42:35,244 INFO L471 AbstractCegarLoop]: Abstraction has 4323 states and 5697 transitions. [2024-11-14 03:42:35,244 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) [2024-11-14 03:42:35,244 INFO L276 IsEmpty]: Start isEmpty. Operand 4323 states and 5697 transitions. [2024-11-14 03:42:35,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-14 03:42:35,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:35,246 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] [2024-11-14 03:42:35,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-14 03:42:35,246 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)] === [2024-11-14 03:42:35,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:35,247 INFO L85 PathProgramCache]: Analyzing trace with hash -418638278, now seen corresponding path program 1 times [2024-11-14 03:42:35,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:35,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246537764] [2024-11-14 03:42:35,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:35,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:42:35,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:42:35,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:42:35,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:42:35,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246537764] [2024-11-14 03:42:35,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246537764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:42:35,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:42:35,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-14 03:42:35,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310375952] [2024-11-14 03:42:35,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:42:35,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 03:42:35,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:42:35,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 03:42:35,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:42:35,649 INFO L87 Difference]: Start difference. First operand 4323 states and 5697 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) [2024-11-14 03:42:35,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:42:35,994 INFO L93 Difference]: Finished difference Result 6481 states and 8633 transitions. [2024-11-14 03:42:35,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 03:42:35,999 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 [2024-11-14 03:42:36,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:42:36,027 INFO L225 Difference]: With dead ends: 6481 [2024-11-14 03:42:36,027 INFO L226 Difference]: Without dead ends: 6479 [2024-11-14 03:42:36,033 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 [2024-11-14 03:42:36,033 INFO L432 NwaCegarLoop]: 488 mSDtfsCounter, 963 mSDsluCounter, 2340 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 963 SdHoareTripleChecker+Valid, 2828 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:42:36,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [963 Valid, 2828 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:42:36,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6479 states. [2024-11-14 03:42:36,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6479 to 4288. [2024-11-14 03:42:36,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4288 states, 4287 states have (on average 1.3188710053650572) internal successors, (5654), 4287 states have internal predecessors, (5654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:36,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4288 states to 4288 states and 5654 transitions. [2024-11-14 03:42:36,221 INFO L78 Accepts]: Start accepts. Automaton has 4288 states and 5654 transitions. Word has length 71 [2024-11-14 03:42:36,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:42:36,222 INFO L471 AbstractCegarLoop]: Abstraction has 4288 states and 5654 transitions. [2024-11-14 03:42:36,222 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) [2024-11-14 03:42:36,222 INFO L276 IsEmpty]: Start isEmpty. Operand 4288 states and 5654 transitions. [2024-11-14 03:42:36,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-14 03:42:36,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:36,228 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] [2024-11-14 03:42:36,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-14 03:42:36,228 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)] === [2024-11-14 03:42:36,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:36,229 INFO L85 PathProgramCache]: Analyzing trace with hash -694926697, now seen corresponding path program 1 times [2024-11-14 03:42:36,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:36,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504173562] [2024-11-14 03:42:36,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:36,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:42:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:42:36,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:42:36,386 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:42:36,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504173562] [2024-11-14 03:42:36,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504173562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:42:36,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:42:36,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:42:36,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170399635] [2024-11-14 03:42:36,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:42:36,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:42:36,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:42:36,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:42:36,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:42:36,388 INFO L87 Difference]: Start difference. First operand 4288 states and 5654 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:36,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:42:36,488 INFO L93 Difference]: Finished difference Result 8156 states and 10990 transitions. [2024-11-14 03:42:36,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:42:36,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2024-11-14 03:42:36,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:42:36,500 INFO L225 Difference]: With dead ends: 8156 [2024-11-14 03:42:36,501 INFO L226 Difference]: Without dead ends: 5684 [2024-11-14 03:42:36,503 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 [2024-11-14 03:42:36,504 INFO L432 NwaCegarLoop]: 504 mSDtfsCounter, 266 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:42:36,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 708 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:42:36,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5684 states. [2024-11-14 03:42:36,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5684 to 5250. [2024-11-14 03:42:36,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5250 states, 5249 states have (on average 1.3187273766431702) internal successors, (6922), 5249 states have internal predecessors, (6922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:36,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5250 states to 5250 states and 6922 transitions. [2024-11-14 03:42:36,567 INFO L78 Accepts]: Start accepts. Automaton has 5250 states and 6922 transitions. Word has length 72 [2024-11-14 03:42:36,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:42:36,568 INFO L471 AbstractCegarLoop]: Abstraction has 5250 states and 6922 transitions. [2024-11-14 03:42:36,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:36,568 INFO L276 IsEmpty]: Start isEmpty. Operand 5250 states and 6922 transitions. [2024-11-14 03:42:36,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-14 03:42:36,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:36,570 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:42:36,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-14 03:42:36,570 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)] === [2024-11-14 03:42:36,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:36,571 INFO L85 PathProgramCache]: Analyzing trace with hash -139990302, now seen corresponding path program 1 times [2024-11-14 03:42:36,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:36,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473309121] [2024-11-14 03:42:36,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:36,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:42:36,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:42:37,607 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:42:37,608 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:42:37,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473309121] [2024-11-14 03:42:37,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473309121] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:42:37,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533276733] [2024-11-14 03:42:37,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:37,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:42:37,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:42:37,613 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:42:37,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 03:42:37,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:42:37,975 INFO L255 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-11-14 03:42:37,986 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:42:40,193 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:42:40,194 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:42:47,009 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:42:47,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533276733] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:42:47,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1066431495] [2024-11-14 03:42:47,029 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2024-11-14 03:42:47,030 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:42:47,033 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:42:47,038 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:42:47,038 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:42:52,088 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:43:32,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1066431495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:43:32,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:43:32,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [16, 21, 21] total 85 [2024-11-14 03:43:32,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803148117] [2024-11-14 03:43:32,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:43:32,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-14 03:43:32,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:43:32,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-14 03:43:32,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1185, Invalid=5955, Unknown=0, NotChecked=0, Total=7140 [2024-11-14 03:43:32,632 INFO L87 Difference]: Start difference. First operand 5250 states and 6922 transitions. Second operand has 33 states, 33 states have (on average 2.090909090909091) internal successors, (69), 32 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:43:48,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:43:48,590 INFO L93 Difference]: Finished difference Result 7437 states and 9852 transitions. [2024-11-14 03:43:48,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-14 03:43:48,591 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.090909090909091) internal successors, (69), 32 states have internal predecessors, (69), 0 states have call successors, (0), 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 72 [2024-11-14 03:43:48,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:43:48,601 INFO L225 Difference]: With dead ends: 7437 [2024-11-14 03:43:48,601 INFO L226 Difference]: Without dead ends: 5230 [2024-11-14 03:43:48,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 148 SyntacticMatches, 1 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3431 ImplicationChecksByTransitivity, 42.7s TimeCoverageRelationStatistics Valid=1185, Invalid=5955, Unknown=0, NotChecked=0, Total=7140 [2024-11-14 03:43:48,606 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 7 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 6621 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 6621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:43:48,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 748 Invalid, 6621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6621 Invalid, 0 Unknown, 0 Unchecked, 15.8s Time] [2024-11-14 03:43:48,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5230 states. [2024-11-14 03:43:48,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5230 to 5230. [2024-11-14 03:43:48,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5230 states, 5229 states have (on average 1.3193727290112833) internal successors, (6899), 5229 states have internal predecessors, (6899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:43:48,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5230 states to 5230 states and 6899 transitions. [2024-11-14 03:43:48,670 INFO L78 Accepts]: Start accepts. Automaton has 5230 states and 6899 transitions. Word has length 72 [2024-11-14 03:43:48,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:43:48,670 INFO L471 AbstractCegarLoop]: Abstraction has 5230 states and 6899 transitions. [2024-11-14 03:43:48,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.090909090909091) internal successors, (69), 32 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:43:48,671 INFO L276 IsEmpty]: Start isEmpty. Operand 5230 states and 6899 transitions. [2024-11-14 03:43:48,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-14 03:43:48,673 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:43:48,673 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:43:48,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-14 03:43:48,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:43:48,874 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)] === [2024-11-14 03:43:48,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:43:48,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1056951882, now seen corresponding path program 1 times [2024-11-14 03:43:48,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:43:48,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149819825] [2024-11-14 03:43:48,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:43:48,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:43:48,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:43:49,828 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:43:49,828 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:43:49,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149819825] [2024-11-14 03:43:49,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149819825] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:43:49,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008063583] [2024-11-14 03:43:49,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:43:49,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:43:49,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:43:49,831 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:43:49,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 03:43:50,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:43:50,175 INFO L255 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 68 conjuncts are in the unsatisfiable core [2024-11-14 03:43:50,184 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:43:54,084 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:43:54,084 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:44:05,137 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:44:05,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008063583] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:44:05,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1182527505] [2024-11-14 03:44:05,141 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2024-11-14 03:44:05,141 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:44:05,141 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:44:05,141 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:44:05,141 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:44:10,881 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:45:04,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1182527505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:45:04,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:45:04,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [16, 28, 28] total 106 [2024-11-14 03:45:04,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321967358] [2024-11-14 03:45:04,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:45:04,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-11-14 03:45:04,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:45:04,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-11-14 03:45:04,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1767, Invalid=9363, Unknown=0, NotChecked=0, Total=11130 [2024-11-14 03:45:04,081 INFO L87 Difference]: Start difference. First operand 5230 states and 6899 transitions. Second operand has 40 states, 40 states have (on average 1.75) internal successors, (70), 39 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:45:27,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:45:27,868 INFO L93 Difference]: Finished difference Result 7516 states and 9960 transitions. [2024-11-14 03:45:27,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-14 03:45:27,869 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 1.75) internal successors, (70), 39 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-14 03:45:27,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:45:27,877 INFO L225 Difference]: With dead ends: 7516 [2024-11-14 03:45:27,877 INFO L226 Difference]: Without dead ends: 5219 [2024-11-14 03:45:27,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 129 SyntacticMatches, 2 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5695 ImplicationChecksByTransitivity, 57.7s TimeCoverageRelationStatistics Valid=1767, Invalid=9363, Unknown=0, NotChecked=0, Total=11130 [2024-11-14 03:45:27,882 INFO L432 NwaCegarLoop]: 391 mSDtfsCounter, 9 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 9570 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 9573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:45:27,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 754 Invalid, 9573 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 9570 Invalid, 0 Unknown, 0 Unchecked, 23.6s Time] [2024-11-14 03:45:27,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5219 states. [2024-11-14 03:45:27,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5219 to 5219. [2024-11-14 03:45:27,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 1.3188961287849752) internal successors, (6882), 5218 states have internal predecessors, (6882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:45:27,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 6882 transitions. [2024-11-14 03:45:27,945 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 6882 transitions. Word has length 73 [2024-11-14 03:45:27,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:45:27,945 INFO L471 AbstractCegarLoop]: Abstraction has 5219 states and 6882 transitions. [2024-11-14 03:45:27,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 1.75) internal successors, (70), 39 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:45:27,946 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 6882 transitions. [2024-11-14 03:45:27,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-14 03:45:27,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:45:27,947 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:45:27,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 03:45:28,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:45:28,150 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)] === [2024-11-14 03:45:28,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:45:28,151 INFO L85 PathProgramCache]: Analyzing trace with hash 791104139, now seen corresponding path program 1 times [2024-11-14 03:45:28,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:45:28,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575322249] [2024-11-14 03:45:28,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:45:28,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:45:28,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:45:28,422 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-14 03:45:28,422 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:45:28,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575322249] [2024-11-14 03:45:28,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575322249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:45:28,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:45:28,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:45:28,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937118808] [2024-11-14 03:45:28,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:45:28,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:45:28,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:45:28,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:45:28,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:45:28,424 INFO L87 Difference]: Start difference. First operand 5219 states and 6882 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:45:29,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:45:29,366 INFO L93 Difference]: Finished difference Result 8326 states and 10908 transitions. [2024-11-14 03:45:29,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:45:29,366 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-14 03:45:29,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:45:29,374 INFO L225 Difference]: With dead ends: 8326 [2024-11-14 03:45:29,374 INFO L226 Difference]: Without dead ends: 6126 [2024-11-14 03:45:29,377 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 [2024-11-14 03:45:29,378 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 1064 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 1014 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1064 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:45:29,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1064 Valid, 993 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1014 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 03:45:29,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6126 states. [2024-11-14 03:45:29,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6126 to 5201. [2024-11-14 03:45:29,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5200 states have (on average 1.3196153846153846) internal successors, (6862), 5200 states have internal predecessors, (6862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:45:29,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 6862 transitions. [2024-11-14 03:45:29,447 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 6862 transitions. Word has length 73 [2024-11-14 03:45:29,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:45:29,447 INFO L471 AbstractCegarLoop]: Abstraction has 5201 states and 6862 transitions. [2024-11-14 03:45:29,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:45:29,448 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 6862 transitions. [2024-11-14 03:45:29,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-14 03:45:29,449 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:45:29,449 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:45:29,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-14 03:45:29,450 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)] === [2024-11-14 03:45:29,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:45:29,451 INFO L85 PathProgramCache]: Analyzing trace with hash -928924485, now seen corresponding path program 1 times [2024-11-14 03:45:29,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:45:29,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449243974] [2024-11-14 03:45:29,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:45:29,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:45:29,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:45:30,373 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:45:30,373 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:45:30,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449243974] [2024-11-14 03:45:30,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449243974] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:45:30,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827722055] [2024-11-14 03:45:30,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:45:30,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:45:30,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:45:30,376 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:45:30,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 03:45:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:45:30,690 INFO L255 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-11-14 03:45:30,700 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:45:32,407 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:45:32,408 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:45:42,208 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:45:42,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827722055] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:45:42,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1674770613] [2024-11-14 03:45:42,214 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2024-11-14 03:45:42,214 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:45:42,214 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:45:42,215 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:45:42,215 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:45:45,410 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:46:20,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1674770613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:46:20,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:46:20,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [16, 21, 21] total 81 [2024-11-14 03:46:20,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775470192] [2024-11-14 03:46:20,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:46:20,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-14 03:46:20,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:46:20,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-14 03:46:20,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1147, Invalid=5333, Unknown=0, NotChecked=0, Total=6480 [2024-11-14 03:46:20,987 INFO L87 Difference]: Start difference. First operand 5201 states and 6862 transitions. Second operand has 29 states, 29 states have (on average 2.413793103448276) internal successors, (70), 28 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:46:32,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:46:32,207 INFO L93 Difference]: Finished difference Result 7391 states and 9795 transitions. [2024-11-14 03:46:32,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-14 03:46:32,207 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.413793103448276) internal successors, (70), 28 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-14 03:46:32,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:46:32,212 INFO L225 Difference]: With dead ends: 7391 [2024-11-14 03:46:32,212 INFO L226 Difference]: Without dead ends: 5189 [2024-11-14 03:46:32,215 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 155 SyntacticMatches, 1 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2908 ImplicationChecksByTransitivity, 38.0s TimeCoverageRelationStatistics Valid=1147, Invalid=5333, Unknown=0, NotChecked=0, Total=6480 [2024-11-14 03:46:32,216 INFO L432 NwaCegarLoop]: 408 mSDtfsCounter, 5 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 4610 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 4610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:46:32,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 745 Invalid, 4610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4610 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2024-11-14 03:46:32,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5189 states. [2024-11-14 03:46:32,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5189 to 5189. [2024-11-14 03:46:32,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 1.3201619121048573) internal successors, (6849), 5188 states have internal predecessors, (6849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:46:32,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 6849 transitions. [2024-11-14 03:46:32,267 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 6849 transitions. Word has length 73 [2024-11-14 03:46:32,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:46:32,268 INFO L471 AbstractCegarLoop]: Abstraction has 5189 states and 6849 transitions. [2024-11-14 03:46:32,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.413793103448276) internal successors, (70), 28 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:46:32,268 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 6849 transitions. [2024-11-14 03:46:32,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-14 03:46:32,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:46:32,270 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:46:32,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-14 03:46:32,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-14 03:46:32,472 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)] === [2024-11-14 03:46:32,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:46:32,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1151300437, now seen corresponding path program 1 times [2024-11-14 03:46:32,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:46:32,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773962009] [2024-11-14 03:46:32,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:46:32,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:46:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:46:33,383 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:46:33,384 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:46:33,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773962009] [2024-11-14 03:46:33,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773962009] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:46:33,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521707849] [2024-11-14 03:46:33,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:46:33,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:46:33,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:46:33,386 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:46:33,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 03:46:33,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:46:33,720 INFO L255 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 68 conjuncts are in the unsatisfiable core [2024-11-14 03:46:33,729 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:46:37,120 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:46:37,120 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:46:51,631 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:46:51,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521707849] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:46:51,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1816705180] [2024-11-14 03:46:51,634 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2024-11-14 03:46:51,634 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:46:51,634 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:46:51,635 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:46:51,635 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:47:01,536 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:47:57,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1816705180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:47:57,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:47:57,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [16, 27, 27] total 105 [2024-11-14 03:47:57,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292564683] [2024-11-14 03:47:57,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:47:57,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-14 03:47:57,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:47:57,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-14 03:47:57,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1887, Invalid=9033, Unknown=0, NotChecked=0, Total=10920 [2024-11-14 03:47:57,878 INFO L87 Difference]: Start difference. First operand 5189 states and 6849 transitions. Second operand has 41 states, 41 states have (on average 1.7317073170731707) internal successors, (71), 40 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) [2024-11-14 03:48:23,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:48:23,856 INFO L93 Difference]: Finished difference Result 7480 states and 9919 transitions. [2024-11-14 03:48:23,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-14 03:48:23,857 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 1.7317073170731707) internal successors, (71), 40 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 74 [2024-11-14 03:48:23,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:48:23,860 INFO L225 Difference]: With dead ends: 7480 [2024-11-14 03:48:23,860 INFO L226 Difference]: Without dead ends: 5193 [2024-11-14 03:48:23,863 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 133 SyntacticMatches, 2 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5391 ImplicationChecksByTransitivity, 61.0s TimeCoverageRelationStatistics Valid=1887, Invalid=9033, Unknown=0, NotChecked=0, Total=10920 [2024-11-14 03:48:23,864 INFO L432 NwaCegarLoop]: 384 mSDtfsCounter, 8 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 10406 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 10410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:48:23,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 753 Invalid, 10410 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 10406 Invalid, 0 Unknown, 0 Unchecked, 25.7s Time] [2024-11-14 03:48:23,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5193 states. [2024-11-14 03:48:23,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5193 to 5192. [2024-11-14 03:48:23,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5192 states, 5191 states have (on average 1.3197842419572337) internal successors, (6851), 5191 states have internal predecessors, (6851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:48:23,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5192 states to 5192 states and 6851 transitions. [2024-11-14 03:48:23,925 INFO L78 Accepts]: Start accepts. Automaton has 5192 states and 6851 transitions. Word has length 74 [2024-11-14 03:48:23,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:48:23,925 INFO L471 AbstractCegarLoop]: Abstraction has 5192 states and 6851 transitions. [2024-11-14 03:48:23,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 1.7317073170731707) internal successors, (71), 40 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) [2024-11-14 03:48:23,926 INFO L276 IsEmpty]: Start isEmpty. Operand 5192 states and 6851 transitions. [2024-11-14 03:48:23,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-14 03:48:23,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:48:23,927 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:48:23,949 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 03:48:24,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:48:24,129 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)] === [2024-11-14 03:48:24,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:48:24,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1909816868, now seen corresponding path program 1 times [2024-11-14 03:48:24,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:48:24,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637889777] [2024-11-14 03:48:24,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:48:24,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:48:24,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:48:25,040 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:48:25,040 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:48:25,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637889777] [2024-11-14 03:48:25,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637889777] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:48:25,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422889845] [2024-11-14 03:48:25,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:48:25,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:48:25,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:48:25,043 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:48:25,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 03:48:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:48:25,363 INFO L255 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-11-14 03:48:25,368 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:48:29,369 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:48:29,369 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:48:57,721 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:48:57,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422889845] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:48:57,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1083060276] [2024-11-14 03:48:57,723 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2024-11-14 03:48:57,723 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:48:57,723 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:48:57,723 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:48:57,724 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:49:02,252 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:49:51,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1083060276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:49:51,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:49:51,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [16, 28, 28] total 102 [2024-11-14 03:49:51,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747612939] [2024-11-14 03:49:51,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:49:51,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-14 03:49:51,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:49:51,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-14 03:49:51,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1562, Invalid=8740, Unknown=0, NotChecked=0, Total=10302 [2024-11-14 03:49:51,058 INFO L87 Difference]: Start difference. First operand 5192 states and 6851 transitions. Second operand has 36 states, 36 states have (on average 1.9722222222222223) internal successors, (71), 35 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) [2024-11-14 03:50:11,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:50:11,780 INFO L93 Difference]: Finished difference Result 7476 states and 9910 transitions. [2024-11-14 03:50:11,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-14 03:50:11,780 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 1.9722222222222223) internal successors, (71), 35 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 74 [2024-11-14 03:50:11,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:50:11,784 INFO L225 Difference]: With dead ends: 7476 [2024-11-14 03:50:11,784 INFO L226 Difference]: Without dead ends: 5178 [2024-11-14 03:50:11,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 136 SyntacticMatches, 2 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5128 ImplicationChecksByTransitivity, 55.1s TimeCoverageRelationStatistics Valid=1562, Invalid=8740, Unknown=0, NotChecked=0, Total=10302 [2024-11-14 03:50:11,787 INFO L432 NwaCegarLoop]: 384 mSDtfsCounter, 6 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 8034 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 8035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:50:11,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 695 Invalid, 8035 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 8034 Invalid, 0 Unknown, 0 Unchecked, 20.5s Time] [2024-11-14 03:50:11,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5178 states. [2024-11-14 03:50:11,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5178 to 5178. [2024-11-14 03:50:11,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5178 states, 5177 states have (on average 1.3202627004056404) internal successors, (6835), 5177 states have internal predecessors, (6835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:50:11,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5178 states to 5178 states and 6835 transitions. [2024-11-14 03:50:11,848 INFO L78 Accepts]: Start accepts. Automaton has 5178 states and 6835 transitions. Word has length 74 [2024-11-14 03:50:11,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:50:11,848 INFO L471 AbstractCegarLoop]: Abstraction has 5178 states and 6835 transitions. [2024-11-14 03:50:11,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 1.9722222222222223) internal successors, (71), 35 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) [2024-11-14 03:50:11,848 INFO L276 IsEmpty]: Start isEmpty. Operand 5178 states and 6835 transitions. [2024-11-14 03:50:11,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-14 03:50:11,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:50:11,850 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:50:11,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 03:50:12,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:50:12,054 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)] === [2024-11-14 03:50:12,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:50:12,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1419984925, now seen corresponding path program 1 times [2024-11-14 03:50:12,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:50:12,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400949073] [2024-11-14 03:50:12,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:50:12,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:50:12,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:50:12,997 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:50:12,998 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:50:12,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400949073] [2024-11-14 03:50:12,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400949073] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:50:12,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464879406] [2024-11-14 03:50:12,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:50:12,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:50:12,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:50:13,001 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:50:13,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 03:50:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:50:13,317 INFO L255 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-14 03:50:13,321 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:50:14,625 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:50:14,625 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:50:20,418 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:50:20,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464879406] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:50:20,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1552432938] [2024-11-14 03:50:20,420 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2024-11-14 03:50:20,421 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:50:20,421 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:50:20,421 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:50:20,421 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:50:32,410 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:51:35,935 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '269940#(and (= ~__return_1880~0 0) (= ~__return_1154~0 0) (= ~__return_1414~0 0) (<= ~send3~0 127) (<= 0 ~id3~0) (= ~__return_103~0 1) (= ~__return_4505~0 0) (<= 1 |#StackHeapBarrier|) (= ~__return_1384~0 0) (= ~__return_1294~0 0) (= ~__return_2816~0 0) (= ~__return_2729~0 0) (<= 0 ~mode1~0) (= ~__return_1264~0 0) (= ~__return_4311~0 0) (= ~__return_1534~0 0) (= ~__return_2202~0 0) (= ~__return_1967~0 0) (= ~__return_3691~0 0) (= ~__return_1234~0 0) (= ~__return_3554~0 0) (= ~__return_1164~0 0) (= ~__return_3134~0 0) (<= 0 ~id1~0) (= ~__return_1334~0 0) (= ~__return_1474~0 0) (= ~__return_1364~0 0) (= ~__return_1214~0 0) (= ~p2~0 0) (<= 1 ~r1~0) (= ~__return_1584~0 0) (= ~__return_1274~0 0) (= ~__return_1544~0 0) (= ~__return_1454~0 0) (<= 0 ~mode3~0) (= (+ ~p1_new~0 1) 0) (= ~__return_1504~0 0) (<= ~__return_5121~0 1) (= ~st3~0 0) (= ~__return_2494~0 0) (<= 0 ~__return_5121~0) (= ~__return_1574~0 0) (= ~__return_4659~0 1) (= ~__return_1174~0 0) (<= ~mode2~0 1) (= ~__return_1124~0 0) (= ~__return_2581~0 0) (= ~__return_3443~0 0) (= ~__return_1394~0 0) (= ~__return_2927~0 0) (= ~__return_1254~0 0) (= ~__return_4395~0 0) (<= ~mode3~0 1) (= ~__return_1424~0 0) (= ~__return_1244~0 0) (= ~__return_2028~0 0) (= ~__return_1114~0 0) (= ~__return_1344~0 0) (= ~__return_1204~0 0) (<= ~id1~0 127) (= ~__return_1484~0 0) (= ~__return_2115~0 0) (= ~__return_1354~0 0) (= ~__return_1184~0 0) (= ~__return_1144~0 0) (= ~__return_1554~0 0) (<= ~mode1~0 1) (= (+ ~nomsg~0 1) 0) (= ~__return_1194~0 0) (= ~__return_1324~0 0) (= ~__return_4743~0 0) (= ~__return_1404~0 0) (= ~__return_3332~0 0) (= ~__return_1314~0 0) (= ~__return_1134~0 0) (<= ~id3~0 127) (= ~__return_1374~0 0) (= (+ ~p2_old~0 1) 0) (<= 0 ~id2~0) (exists ((|v_ULTIMATE.start_main_~assert__arg~1#1_36| Int)) (= (mod |v_ULTIMATE.start_main_~assert__arg~1#1_36| 256) 0)) (= ~__return_1304~0 0) (= ~__return_1514~0 0) (= ~__return_3245~0 0) (= (+ ~p3_new~0 1) 0) (<= 0 ~mode2~0) (= ~__return_1564~0 0) (= ~__return_1444~0 0) (= ~__return_1494~0 0) (<= ~id2~0 127) (= ~__return_2642~0 0) (= ~__return_4853~0 0) (= ~__return_1224~0 0) (= ~p3~0 0) (= ~__return_1284~0 0) (= ~__return_1434~0 0) (<= ~r1~0 2) (<= 0 ~send3~0) (= ~p1~0 0) (= ~__return_1464~0 0) (= ~__return_main~0 0) (= ~__return_1524~0 1) (= (+ ~p2_new~0 1) 0) (= ~__return_2313~0 0))' at error location [2024-11-14 03:51:35,935 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:51:35,935 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:51:35,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 19] total 48 [2024-11-14 03:51:35,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772489706] [2024-11-14 03:51:35,936 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:51:35,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-14 03:51:35,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:51:35,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-14 03:51:35,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1243, Invalid=7313, Unknown=0, NotChecked=0, Total=8556 [2024-11-14 03:51:35,940 INFO L87 Difference]: Start difference. First operand 5178 states and 6835 transitions. Second operand has 48 states, 48 states have (on average 4.395833333333333) internal successors, (211), 48 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:51:51,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:51:51,866 INFO L93 Difference]: Finished difference Result 23575 states and 31771 transitions. [2024-11-14 03:51:51,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2024-11-14 03:51:51,867 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 4.395833333333333) internal successors, (211), 48 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-14 03:51:51,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:51:51,880 INFO L225 Difference]: With dead ends: 23575 [2024-11-14 03:51:51,880 INFO L226 Difference]: Without dead ends: 21330 [2024-11-14 03:51:51,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 143 SyntacticMatches, 5 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 14552 ImplicationChecksByTransitivity, 74.4s TimeCoverageRelationStatistics Valid=4183, Invalid=28397, Unknown=0, NotChecked=0, Total=32580 [2024-11-14 03:51:51,887 INFO L432 NwaCegarLoop]: 356 mSDtfsCounter, 3614 mSDsluCounter, 5980 mSDsCounter, 0 mSdLazyCounter, 6858 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3614 SdHoareTripleChecker+Valid, 6336 SdHoareTripleChecker+Invalid, 7091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 6858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:51:51,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3614 Valid, 6336 Invalid, 7091 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [233 Valid, 6858 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2024-11-14 03:51:51,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21330 states. [2024-11-14 03:51:52,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21330 to 12024. [2024-11-14 03:51:52,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12024 states, 12023 states have (on average 1.3230474923064126) internal successors, (15907), 12023 states have internal predecessors, (15907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:51:52,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12024 states to 12024 states and 15907 transitions. [2024-11-14 03:51:52,031 INFO L78 Accepts]: Start accepts. Automaton has 12024 states and 15907 transitions. Word has length 74 [2024-11-14 03:51:52,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:51:52,031 INFO L471 AbstractCegarLoop]: Abstraction has 12024 states and 15907 transitions. [2024-11-14 03:51:52,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 4.395833333333333) internal successors, (211), 48 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:51:52,032 INFO L276 IsEmpty]: Start isEmpty. Operand 12024 states and 15907 transitions. [2024-11-14 03:51:52,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-14 03:51:52,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:51:52,033 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:51:52,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-14 03:51:52,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-14 03:51:52,234 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)] === [2024-11-14 03:51:52,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:51:52,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1020531031, now seen corresponding path program 1 times [2024-11-14 03:51:52,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:51:52,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480088081] [2024-11-14 03:51:52,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:51:52,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:51:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:51:52,558 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-14 03:51:52,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:51:52,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480088081] [2024-11-14 03:51:52,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480088081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:51:52,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:51:52,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-14 03:51:52,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47419401] [2024-11-14 03:51:52,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:51:52,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 03:51:52,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:51:52,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 03:51:52,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-14 03:51:52,560 INFO L87 Difference]: Start difference. First operand 12024 states and 15907 transitions. Second operand has 10 states, 10 states have (on average 7.2) internal successors, (72), 9 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:51:53,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:51:53,417 INFO L93 Difference]: Finished difference Result 15296 states and 20142 transitions. [2024-11-14 03:51:53,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 03:51:53,418 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 9 states have internal predecessors, (72), 0 states have call successors, (0), 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 [2024-11-14 03:51:53,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:51:53,427 INFO L225 Difference]: With dead ends: 15296 [2024-11-14 03:51:53,427 INFO L226 Difference]: Without dead ends: 12699 [2024-11-14 03:51:53,430 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:51:53,430 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 1187 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 1147 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 1164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:51:53,430 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1187 Valid, 1134 Invalid, 1164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1147 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 03:51:53,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12699 states. [2024-11-14 03:51:53,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12699 to 12024. [2024-11-14 03:51:53,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12024 states, 12023 states have (on average 1.3228811444730932) internal successors, (15905), 12023 states have internal predecessors, (15905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:51:53,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12024 states to 12024 states and 15905 transitions. [2024-11-14 03:51:53,524 INFO L78 Accepts]: Start accepts. Automaton has 12024 states and 15905 transitions. Word has length 75 [2024-11-14 03:51:53,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:51:53,524 INFO L471 AbstractCegarLoop]: Abstraction has 12024 states and 15905 transitions. [2024-11-14 03:51:53,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 9 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:51:53,524 INFO L276 IsEmpty]: Start isEmpty. Operand 12024 states and 15905 transitions. [2024-11-14 03:51:53,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-14 03:51:53,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:51:53,526 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] [2024-11-14 03:51:53,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-14 03:51:53,526 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)] === [2024-11-14 03:51:53,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:51:53,526 INFO L85 PathProgramCache]: Analyzing trace with hash -681602352, now seen corresponding path program 1 times [2024-11-14 03:51:53,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:51:53,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408268602] [2024-11-14 03:51:53,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:51:53,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:51:53,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:51:53,880 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-14 03:51:53,880 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:51:53,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408268602] [2024-11-14 03:51:53,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408268602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:51:53,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:51:53,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-14 03:51:53,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146960622] [2024-11-14 03:51:53,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:51:53,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 03:51:53,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:51:53,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 03:51:53,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:51:53,881 INFO L87 Difference]: Start difference. First operand 12024 states and 15905 transitions. Second operand has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 10 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:51:54,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:51:54,823 INFO L93 Difference]: Finished difference Result 14954 states and 19366 transitions. [2024-11-14 03:51:54,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 03:51:54,824 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 10 states have internal predecessors, (72), 0 states have call successors, (0), 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 76 [2024-11-14 03:51:54,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:51:54,833 INFO L225 Difference]: With dead ends: 14954 [2024-11-14 03:51:54,833 INFO L226 Difference]: Without dead ends: 13822 [2024-11-14 03:51:54,836 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2024-11-14 03:51:54,836 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 1051 mSDsluCounter, 1036 mSDsCounter, 0 mSdLazyCounter, 1393 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 1270 SdHoareTripleChecker+Invalid, 1418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:51:54,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1051 Valid, 1270 Invalid, 1418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1393 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 03:51:54,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13822 states. [2024-11-14 03:51:54,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13822 to 12027. [2024-11-14 03:51:54,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12027 states, 12026 states have (on average 1.3228005987028106) internal successors, (15908), 12026 states have internal predecessors, (15908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:51:54,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12027 states to 12027 states and 15908 transitions. [2024-11-14 03:51:54,928 INFO L78 Accepts]: Start accepts. Automaton has 12027 states and 15908 transitions. Word has length 76 [2024-11-14 03:51:54,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:51:54,928 INFO L471 AbstractCegarLoop]: Abstraction has 12027 states and 15908 transitions. [2024-11-14 03:51:54,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 10 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:51:54,928 INFO L276 IsEmpty]: Start isEmpty. Operand 12027 states and 15908 transitions. [2024-11-14 03:51:54,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-14 03:51:54,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:51:54,929 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:51:54,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-14 03:51:54,930 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)] === [2024-11-14 03:51:54,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:51:54,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1940418117, now seen corresponding path program 1 times [2024-11-14 03:51:54,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:51:54,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142997325] [2024-11-14 03:51:54,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:51:54,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:51:54,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:51:55,714 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:51:55,715 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:51:55,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142997325] [2024-11-14 03:51:55,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142997325] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:51:55,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780341932] [2024-11-14 03:51:55,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:51:55,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:51:55,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:51:55,717 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:51:55,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 03:51:56,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:51:56,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-14 03:51:56,033 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:51:58,844 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:51:58,844 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:52:05,507 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:52:05,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780341932] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:52:05,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1283001784] [2024-11-14 03:52:05,509 INFO L159 IcfgInterpreter]: Started Sifa with 72 locations of interest [2024-11-14 03:52:05,509 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:52:05,509 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:52:05,509 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:52:05,509 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:52:18,996 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:53:28,984 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '360624#(and (exists ((|v_ULTIMATE.start_main_~assert__arg~1#1_45| Int)) (= (mod |v_ULTIMATE.start_main_~assert__arg~1#1_45| 256) 0)) (= ~__return_1880~0 0) (= ~__return_1154~0 0) (= ~__return_1414~0 0) (<= 0 ~id3~0) (= ~__return_103~0 1) (= ~__return_4505~0 0) (<= 1 |#StackHeapBarrier|) (= ~__return_1384~0 0) (= ~__return_1294~0 0) (= ~__return_2816~0 0) (= ~__return_2729~0 0) (<= 0 ~mode1~0) (= ~__return_1264~0 0) (= ~__return_4311~0 0) (= ~__return_1534~0 0) (= ~__return_2202~0 0) (= ~__return_1967~0 0) (= ~__return_3691~0 0) (= (+ ~p3_old~0 1) 0) (= ~__return_1234~0 0) (= ~__return_3554~0 0) (= ~__return_1164~0 0) (= ~__return_3134~0 0) (<= 0 ~id1~0) (= ~__return_1524~0 0) (= ~__return_1334~0 0) (= ~__return_1474~0 0) (= ~__return_1364~0 0) (= ~__return_1214~0 0) (= ~p2~0 0) (<= 1 ~r1~0) (= ~__return_1584~0 0) (= ~__return_1274~0 0) (= ~__return_1544~0 0) (= ~__return_1374~0 1) (= ~__return_1454~0 0) (<= 0 ~mode3~0) (= (+ ~p1_new~0 1) 0) (= ~__return_1504~0 0) (<= ~send1~0 127) (<= ~__return_5121~0 1) (= ~__return_2494~0 0) (<= 0 ~__return_5121~0) (= ~__return_1574~0 0) (= ~__return_4659~0 0) (= ~__return_1174~0 0) (<= ~mode2~0 1) (= ~__return_1124~0 0) (= ~__return_2581~0 0) (= ~__return_3443~0 0) (= ~__return_1394~0 0) (= ~__return_2927~0 0) (= ~__return_1254~0 0) (= ~__return_4395~0 0) (<= ~mode3~0 1) (= ~__return_1424~0 0) (= ~__return_1244~0 0) (= ~__return_2028~0 0) (= ~__return_1114~0 0) (= ~__return_1344~0 0) (= ~__return_1204~0 0) (<= ~id1~0 127) (= ~__return_1484~0 0) (= ~st1~0 0) (= ~__return_2115~0 0) (= ~__return_1354~0 0) (= ~__return_1184~0 0) (= ~__return_1144~0 0) (= ~__return_1554~0 0) (<= ~mode1~0 1) (= (+ ~nomsg~0 1) 0) (= ~__return_1194~0 0) (= ~__return_1324~0 0) (= ~__return_4743~0 0) (= ~__return_1404~0 0) (= ~__return_3332~0 0) (= ~__return_1314~0 0) (= ~__return_1134~0 0) (<= ~id3~0 127) (<= 0 ~id2~0) (= ~__return_2642~0 1) (= ~__return_1304~0 0) (= ~__return_1514~0 0) (= ~__return_3245~0 0) (= (+ ~p3_new~0 1) 0) (<= 0 ~mode2~0) (= ~__return_1564~0 0) (= ~__return_1444~0 0) (= ~__return_1494~0 0) (<= ~id2~0 127) (= ~__return_4853~0 0) (= ~__return_1224~0 0) (= ~p3~0 0) (= ~__return_1284~0 0) (= ~__return_1434~0 0) (<= ~r1~0 2) (= ~p1~0 0) (<= 0 ~send1~0) (= ~__return_1464~0 0) (= ~__return_main~0 0) (= (+ ~p2_new~0 1) 0) (= ~__return_2313~0 0))' at error location [2024-11-14 03:53:28,984 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:53:28,984 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:53:28,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 21, 20] total 54 [2024-11-14 03:53:28,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472430165] [2024-11-14 03:53:28,985 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:53:28,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-11-14 03:53:28,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:53:28,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-11-14 03:53:28,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1641, Invalid=8865, Unknown=0, NotChecked=0, Total=10506 [2024-11-14 03:53:28,987 INFO L87 Difference]: Start difference. First operand 12027 states and 15908 transitions. Second operand has 54 states, 54 states have (on average 4.166666666666667) internal successors, (225), 54 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:53:51,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:51,167 INFO L93 Difference]: Finished difference Result 37002 states and 49112 transitions. [2024-11-14 03:53:51,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2024-11-14 03:53:51,167 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 4.166666666666667) internal successors, (225), 54 states have internal predecessors, (225), 0 states have call successors, (0), 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 76 [2024-11-14 03:53:51,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:51,198 INFO L225 Difference]: With dead ends: 37002 [2024-11-14 03:53:51,198 INFO L226 Difference]: Without dead ends: 31190 [2024-11-14 03:53:51,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 139 SyntacticMatches, 5 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 21213 ImplicationChecksByTransitivity, 86.0s TimeCoverageRelationStatistics Valid=6402, Invalid=40038, Unknown=0, NotChecked=0, Total=46440 [2024-11-14 03:53:51,209 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 4218 mSDsluCounter, 4434 mSDsCounter, 0 mSdLazyCounter, 8020 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4218 SdHoareTripleChecker+Valid, 4710 SdHoareTripleChecker+Invalid, 8252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 8020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:51,209 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4218 Valid, 4710 Invalid, 8252 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [232 Valid, 8020 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2024-11-14 03:53:51,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31190 states. [2024-11-14 03:53:51,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31190 to 16263. [2024-11-14 03:53:51,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16263 states, 16262 states have (on average 1.3180420612470791) internal successors, (21434), 16262 states have internal predecessors, (21434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:53:51,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16263 states to 16263 states and 21434 transitions. [2024-11-14 03:53:51,443 INFO L78 Accepts]: Start accepts. Automaton has 16263 states and 21434 transitions. Word has length 76 [2024-11-14 03:53:51,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:51,444 INFO L471 AbstractCegarLoop]: Abstraction has 16263 states and 21434 transitions. [2024-11-14 03:53:51,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 4.166666666666667) internal successors, (225), 54 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:53:51,444 INFO L276 IsEmpty]: Start isEmpty. Operand 16263 states and 21434 transitions. [2024-11-14 03:53:51,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-14 03:53:51,445 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:51,445 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:53:51,459 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 03:53:51,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:51,645 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)] === [2024-11-14 03:53:51,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:51,646 INFO L85 PathProgramCache]: Analyzing trace with hash 314331504, now seen corresponding path program 1 times [2024-11-14 03:53:51,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:51,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913692347] [2024-11-14 03:53:51,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:51,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:51,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:52,523 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:53:52,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:53:52,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913692347] [2024-11-14 03:53:52,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913692347] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:53:52,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906617629] [2024-11-14 03:53:52,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:52,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:52,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:53:52,526 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:53:52,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f36eefb9-f43f-4093-920a-b2e560eb80e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 03:53:52,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:52,834 INFO L255 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-11-14 03:53:52,838 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:57,240 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:53:57,240 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:54:39,936 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:54:39,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [906617629] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:54:39,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1307919652] [2024-11-14 03:54:39,938 INFO L159 IcfgInterpreter]: Started Sifa with 73 locations of interest [2024-11-14 03:54:39,939 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:54:39,939 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:54:39,939 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:54:39,939 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:54:53,757 INFO L180 IcfgInterpreter]: Interpretation finished