./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-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_561bf766-056f-442d-920a-5b0e85d38d9b/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561bf766-056f-442d-920a-5b0e85d38d9b/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_561bf766-056f-442d-920a-5b0e85d38d9b/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561bf766-056f-442d-920a-5b0e85d38d9b/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561bf766-056f-442d-920a-5b0e85d38d9b/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_561bf766-056f-442d-920a-5b0e85d38d9b/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 b67ecf5848be9c2e67ab202f4088edc38ff4a91991b1583263c2018f06031ba2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 02:42:05,151 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 02:42:05,240 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561bf766-056f-442d-920a-5b0e85d38d9b/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 02:42:05,247 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 02:42:05,247 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 02:42:05,274 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 02:42:05,274 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 02:42:05,274 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 02:42:05,275 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 02:42:05,275 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 02:42:05,275 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 02:42:05,275 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 02:42:05,275 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 02:42:05,275 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 02:42:05,275 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 02:42:05,275 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 02:42:05,275 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 02:42:05,276 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 02:42:05,276 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 02:42:05,276 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 02:42:05,276 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 02:42:05,276 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 02:42:05,276 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 02:42:05,276 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 02:42:05,277 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 02:42:05,277 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 02:42:05,277 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 02:42:05,277 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 02:42:05,277 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 02:42:05,277 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 02:42:05,277 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 02:42:05,277 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 02:42:05,277 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 02:42:05,277 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 02:42:05,277 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 02:42:05,277 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 02:42:05,278 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 02:42:05,278 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 02:42:05,280 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:42:05,280 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 02:42:05,280 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 02:42:05,281 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 02:42:05,281 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 02:42:05,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 02:42:05,281 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 02:42:05,281 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 02:42:05,281 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 02:42:05,281 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_561bf766-056f-442d-920a-5b0e85d38d9b/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 -> b67ecf5848be9c2e67ab202f4088edc38ff4a91991b1583263c2018f06031ba2 [2024-11-14 02:42:05,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 02:42:05,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 02:42:05,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 02:42:05,594 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 02:42:05,595 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 02:42:05,596 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561bf766-056f-442d-920a-5b0e85d38d9b/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c Unable to find full path for "g++" [2024-11-14 02:42:07,536 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 02:42:08,139 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 02:42:08,140 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561bf766-056f-442d-920a-5b0e85d38d9b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2024-11-14 02:42:08,185 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561bf766-056f-442d-920a-5b0e85d38d9b/bin/utaipan-verify-sOmjnqqW8E/data/febe433fb/c50fd56b90754f3890cb6226396f4feb/FLAGfc992549a [2024-11-14 02:42:08,605 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561bf766-056f-442d-920a-5b0e85d38d9b/bin/utaipan-verify-sOmjnqqW8E/data/febe433fb/c50fd56b90754f3890cb6226396f4feb [2024-11-14 02:42:08,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 02:42:08,609 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 02:42:08,610 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 02:42:08,611 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 02:42:08,615 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 02:42:08,616 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:42:08" (1/1) ... [2024-11-14 02:42:08,617 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e969b06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:08, skipping insertion in model container [2024-11-14 02:42:08,618 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:42:08" (1/1) ... [2024-11-14 02:42:08,790 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 02:42:09,183 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_561bf766-056f-442d-920a-5b0e85d38d9b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[12458,12471] [2024-11-14 02:42:09,249 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_561bf766-056f-442d-920a-5b0e85d38d9b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[19724,19737] [2024-11-14 02:42:09,265 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_561bf766-056f-442d-920a-5b0e85d38d9b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[22076,22089] [2024-11-14 02:42:09,276 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_561bf766-056f-442d-920a-5b0e85d38d9b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[23196,23209] [2024-11-14 02:42:09,298 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_561bf766-056f-442d-920a-5b0e85d38d9b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[26746,26759] [2024-11-14 02:42:09,307 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_561bf766-056f-442d-920a-5b0e85d38d9b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[27869,27882] [2024-11-14 02:42:09,319 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_561bf766-056f-442d-920a-5b0e85d38d9b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[30184,30197] [2024-11-14 02:42:09,954 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:42:10,014 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 02:42:10,082 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_561bf766-056f-442d-920a-5b0e85d38d9b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[12458,12471] [2024-11-14 02:42:10,114 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_561bf766-056f-442d-920a-5b0e85d38d9b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[19724,19737] [2024-11-14 02:42:10,123 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_561bf766-056f-442d-920a-5b0e85d38d9b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[22076,22089] [2024-11-14 02:42:10,127 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_561bf766-056f-442d-920a-5b0e85d38d9b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[23196,23209] [2024-11-14 02:42:10,138 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_561bf766-056f-442d-920a-5b0e85d38d9b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[26746,26759] [2024-11-14 02:42:10,142 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_561bf766-056f-442d-920a-5b0e85d38d9b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[27869,27882] [2024-11-14 02:42:10,150 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_561bf766-056f-442d-920a-5b0e85d38d9b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[30184,30197] [2024-11-14 02:42:10,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:42:10,507 INFO L204 MainTranslator]: Completed translation [2024-11-14 02:42:10,507 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:10 WrapperNode [2024-11-14 02:42:10,508 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 02:42:10,509 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 02:42:10,510 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 02:42:10,510 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 02:42:10,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:10" (1/1) ... [2024-11-14 02:42:10,558 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:10" (1/1) ... [2024-11-14 02:42:10,732 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 7677 [2024-11-14 02:42:10,733 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 02:42:10,733 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 02:42:10,733 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 02:42:10,734 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 02:42:10,742 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:10" (1/1) ... [2024-11-14 02:42:10,742 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:10" (1/1) ... [2024-11-14 02:42:10,773 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:10" (1/1) ... [2024-11-14 02:42:10,773 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:10" (1/1) ... [2024-11-14 02:42:10,847 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:10" (1/1) ... [2024-11-14 02:42:10,900 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:10" (1/1) ... [2024-11-14 02:42:10,921 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:10" (1/1) ... [2024-11-14 02:42:10,937 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:10" (1/1) ... [2024-11-14 02:42:10,974 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 02:42:10,976 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 02:42:10,976 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 02:42:10,976 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 02:42:10,977 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:10" (1/1) ... [2024-11-14 02:42:10,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:42:11,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561bf766-056f-442d-920a-5b0e85d38d9b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:42:11,017 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561bf766-056f-442d-920a-5b0e85d38d9b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 02:42:11,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561bf766-056f-442d-920a-5b0e85d38d9b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 02:42:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 02:42:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 02:42:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 02:42:11,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 02:42:11,449 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 02:42:11,452 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 02:42:16,147 INFO L? ?]: Removed 1280 outVars from TransFormulas that were not future-live. [2024-11-14 02:42:16,147 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 02:42:16,622 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 02:42:16,626 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 02:42:16,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:42:16 BoogieIcfgContainer [2024-11-14 02:42:16,627 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 02:42:16,629 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 02:42:16,630 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 02:42:16,636 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 02:42:16,636 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 02:42:08" (1/3) ... [2024-11-14 02:42:16,637 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@645443cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:42:16, skipping insertion in model container [2024-11-14 02:42:16,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:10" (2/3) ... [2024-11-14 02:42:16,638 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@645443cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:42:16, skipping insertion in model container [2024-11-14 02:42:16,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:42:16" (3/3) ... [2024-11-14 02:42:16,639 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2024-11-14 02:42:16,661 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 02:42:16,665 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c that has 1 procedures, 1059 locations, 1 initial locations, 0 loop locations, and 7 error locations. [2024-11-14 02:42:16,777 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 02:42:16,790 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;@7bced115, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 02:42:16,790 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-14 02:42:16,799 INFO L276 IsEmpty]: Start isEmpty. Operand has 1059 states, 1051 states have (on average 1.8924833491912465) internal successors, (1989), 1058 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states 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 02:42:16,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-14 02:42:16,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:16,822 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:42:16,823 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:42:16,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:16,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1184813438, now seen corresponding path program 1 times [2024-11-14 02:42:16,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:16,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879134523] [2024-11-14 02:42:16,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:16,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:17,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:17,498 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 02:42:17,498 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:17,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879134523] [2024-11-14 02:42:17,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879134523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:17,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:17,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:42:17,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074249385] [2024-11-14 02:42:17,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:17,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:42:17,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:17,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:42:17,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:42:17,531 INFO L87 Difference]: Start difference. First operand has 1059 states, 1051 states have (on average 1.8924833491912465) internal successors, (1989), 1058 states have internal predecessors, (1989), 0 states have call successors, (0), 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 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:42:17,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:17,897 INFO L93 Difference]: Finished difference Result 1348 states and 2449 transitions. [2024-11-14 02:42:17,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:42:17,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-14 02:42:17,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:17,932 INFO L225 Difference]: With dead ends: 1348 [2024-11-14 02:42:17,932 INFO L226 Difference]: Without dead ends: 1214 [2024-11-14 02:42:17,939 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 02:42:17,943 INFO L432 NwaCegarLoop]: 1962 mSDtfsCounter, 921 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 921 SdHoareTripleChecker+Valid, 3150 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:17,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [921 Valid, 3150 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 02:42:17,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2024-11-14 02:42:18,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 1206. [2024-11-14 02:42:18,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 1199 states have (on average 1.291909924937448) internal successors, (1549), 1205 states have internal predecessors, (1549), 0 states have call successors, (0), 0 states 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 02:42:18,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 1549 transitions. [2024-11-14 02:42:18,083 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 1549 transitions. Word has length 63 [2024-11-14 02:42:18,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:18,085 INFO L471 AbstractCegarLoop]: Abstraction has 1206 states and 1549 transitions. [2024-11-14 02:42:18,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:42:18,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 1549 transitions. [2024-11-14 02:42:18,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-14 02:42:18,097 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:18,097 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:42:18,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 02:42:18,098 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:42:18,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:18,098 INFO L85 PathProgramCache]: Analyzing trace with hash 2003436219, now seen corresponding path program 1 times [2024-11-14 02:42:18,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:18,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998187523] [2024-11-14 02:42:18,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:18,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:18,544 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 02:42:18,544 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:18,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998187523] [2024-11-14 02:42:18,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998187523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:18,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:18,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:42:18,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128703517] [2024-11-14 02:42:18,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:18,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:42:18,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:18,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:42:18,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:42:18,551 INFO L87 Difference]: Start difference. First operand 1206 states and 1549 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:42:18,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:18,784 INFO L93 Difference]: Finished difference Result 1737 states and 2289 transitions. [2024-11-14 02:42:18,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:42:18,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-14 02:42:18,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:18,794 INFO L225 Difference]: With dead ends: 1737 [2024-11-14 02:42:18,798 INFO L226 Difference]: Without dead ends: 1456 [2024-11-14 02:42:18,799 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 02:42:18,802 INFO L432 NwaCegarLoop]: 1326 mSDtfsCounter, 672 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 2130 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:18,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [672 Valid, 2130 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 02:42:18,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2024-11-14 02:42:18,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1448. [2024-11-14 02:42:18,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1441 states have (on average 1.3095072866065232) internal successors, (1887), 1447 states have internal predecessors, (1887), 0 states have call successors, (0), 0 states 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 02:42:18,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 1887 transitions. [2024-11-14 02:42:18,874 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 1887 transitions. Word has length 63 [2024-11-14 02:42:18,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:18,875 INFO L471 AbstractCegarLoop]: Abstraction has 1448 states and 1887 transitions. [2024-11-14 02:42:18,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:42:18,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 1887 transitions. [2024-11-14 02:42:18,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-14 02:42:18,880 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:18,880 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:42:18,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 02:42:18,880 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:42:18,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:18,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1542392687, now seen corresponding path program 1 times [2024-11-14 02:42:18,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:18,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515960991] [2024-11-14 02:42:18,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:18,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:19,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:19,245 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 02:42:19,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:19,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515960991] [2024-11-14 02:42:19,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515960991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:19,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:19,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 02:42:19,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228461643] [2024-11-14 02:42:19,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:19,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:42:19,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:19,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:42:19,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:42:19,247 INFO L87 Difference]: Start difference. First operand 1448 states and 1887 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:42:20,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:20,113 INFO L93 Difference]: Finished difference Result 2711 states and 3616 transitions. [2024-11-14 02:42:20,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:42:20,115 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-14 02:42:20,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:20,123 INFO L225 Difference]: With dead ends: 2711 [2024-11-14 02:42:20,123 INFO L226 Difference]: Without dead ends: 1571 [2024-11-14 02:42:20,125 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 02:42:20,128 INFO L432 NwaCegarLoop]: 641 mSDtfsCounter, 3207 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3207 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:20,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3207 Valid, 759 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 02:42:20,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1571 states. [2024-11-14 02:42:20,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1571 to 1563. [2024-11-14 02:42:20,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1556 states have (on average 1.3438303341902313) internal successors, (2091), 1562 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states 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 02:42:20,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2091 transitions. [2024-11-14 02:42:20,185 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2091 transitions. Word has length 63 [2024-11-14 02:42:20,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:20,186 INFO L471 AbstractCegarLoop]: Abstraction has 1563 states and 2091 transitions. [2024-11-14 02:42:20,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:42:20,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2091 transitions. [2024-11-14 02:42:20,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-14 02:42:20,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:20,190 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 02:42:20,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 02:42:20,191 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:42:20,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:20,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1152487412, now seen corresponding path program 1 times [2024-11-14 02:42:20,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:20,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733333658] [2024-11-14 02:42:20,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:20,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:20,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:20,436 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 02:42:20,436 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:20,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733333658] [2024-11-14 02:42:20,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733333658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:20,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:20,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:42:20,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578018796] [2024-11-14 02:42:20,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:20,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:42:20,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:20,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:42:20,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:42:20,439 INFO L87 Difference]: Start difference. First operand 1563 states and 2091 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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 02:42:20,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:20,558 INFO L93 Difference]: Finished difference Result 3154 states and 4284 transitions. [2024-11-14 02:42:20,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:42:20,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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 02:42:20,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:20,569 INFO L225 Difference]: With dead ends: 3154 [2024-11-14 02:42:20,570 INFO L226 Difference]: Without dead ends: 2381 [2024-11-14 02:42:20,571 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 02:42:20,572 INFO L432 NwaCegarLoop]: 1324 mSDtfsCounter, 852 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 1955 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:20,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 1955 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:42:20,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2381 states. [2024-11-14 02:42:20,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2381 to 2373. [2024-11-14 02:42:20,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2373 states, 2366 states have (on average 1.3423499577345732) internal successors, (3176), 2372 states have internal predecessors, (3176), 0 states have call successors, (0), 0 states 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 02:42:20,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2373 states to 2373 states and 3176 transitions. [2024-11-14 02:42:20,653 INFO L78 Accepts]: Start accepts. Automaton has 2373 states and 3176 transitions. Word has length 64 [2024-11-14 02:42:20,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:20,653 INFO L471 AbstractCegarLoop]: Abstraction has 2373 states and 3176 transitions. [2024-11-14 02:42:20,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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 02:42:20,654 INFO L276 IsEmpty]: Start isEmpty. Operand 2373 states and 3176 transitions. [2024-11-14 02:42:20,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-14 02:42:20,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:20,659 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:42:20,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 02:42:20,659 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:42:20,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:20,660 INFO L85 PathProgramCache]: Analyzing trace with hash -998210018, now seen corresponding path program 1 times [2024-11-14 02:42:20,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:20,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871237269] [2024-11-14 02:42:20,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:20,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:20,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:20,924 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 02:42:20,924 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:20,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871237269] [2024-11-14 02:42:20,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871237269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:20,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:20,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 02:42:20,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154991514] [2024-11-14 02:42:20,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:20,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:42:20,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:20,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:42:20,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:42:20,927 INFO L87 Difference]: Start difference. First operand 2373 states and 3176 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 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 02:42:21,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:21,896 INFO L93 Difference]: Finished difference Result 4856 states and 6582 transitions. [2024-11-14 02:42:21,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:42:21,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 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 02:42:21,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:21,909 INFO L225 Difference]: With dead ends: 4856 [2024-11-14 02:42:21,910 INFO L226 Difference]: Without dead ends: 3087 [2024-11-14 02:42:21,912 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 02:42:21,914 INFO L432 NwaCegarLoop]: 497 mSDtfsCounter, 2778 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2778 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:21,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2778 Valid, 597 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 02:42:21,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3087 states. [2024-11-14 02:42:22,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3087 to 3079. [2024-11-14 02:42:22,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3079 states, 3072 states have (on average 1.3385416666666667) internal successors, (4112), 3078 states have internal predecessors, (4112), 0 states have call successors, (0), 0 states 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 02:42:22,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3079 states to 3079 states and 4112 transitions. [2024-11-14 02:42:22,028 INFO L78 Accepts]: Start accepts. Automaton has 3079 states and 4112 transitions. Word has length 64 [2024-11-14 02:42:22,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:22,029 INFO L471 AbstractCegarLoop]: Abstraction has 3079 states and 4112 transitions. [2024-11-14 02:42:22,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 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 02:42:22,029 INFO L276 IsEmpty]: Start isEmpty. Operand 3079 states and 4112 transitions. [2024-11-14 02:42:22,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-14 02:42:22,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:22,035 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 02:42:22,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 02:42:22,036 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:42:22,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:22,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1760122824, now seen corresponding path program 1 times [2024-11-14 02:42:22,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:22,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906172061] [2024-11-14 02:42:22,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:22,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:22,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:22,399 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 02:42:22,400 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:22,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906172061] [2024-11-14 02:42:22,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906172061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:22,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:22,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 02:42:22,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309577009] [2024-11-14 02:42:22,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:22,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:42:22,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:22,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:42:22,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:42:22,405 INFO L87 Difference]: Start difference. First operand 3079 states and 4112 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 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 02:42:23,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:23,218 INFO L93 Difference]: Finished difference Result 7234 states and 9847 transitions. [2024-11-14 02:42:23,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:42:23,219 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 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 02:42:23,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:23,236 INFO L225 Difference]: With dead ends: 7234 [2024-11-14 02:42:23,237 INFO L226 Difference]: Without dead ends: 4588 [2024-11-14 02:42:23,240 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 02:42:23,241 INFO L432 NwaCegarLoop]: 457 mSDtfsCounter, 2460 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2460 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:23,241 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2460 Valid, 573 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 02:42:23,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4588 states. [2024-11-14 02:42:23,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4588 to 4580. [2024-11-14 02:42:23,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4580 states, 4573 states have (on average 1.3557839492674393) internal successors, (6200), 4579 states have internal predecessors, (6200), 0 states have call successors, (0), 0 states 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 02:42:23,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4580 states to 4580 states and 6200 transitions. [2024-11-14 02:42:23,373 INFO L78 Accepts]: Start accepts. Automaton has 4580 states and 6200 transitions. Word has length 64 [2024-11-14 02:42:23,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:23,374 INFO L471 AbstractCegarLoop]: Abstraction has 4580 states and 6200 transitions. [2024-11-14 02:42:23,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 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 02:42:23,374 INFO L276 IsEmpty]: Start isEmpty. Operand 4580 states and 6200 transitions. [2024-11-14 02:42:23,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-14 02:42:23,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:23,378 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:42:23,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 02:42:23,379 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:42:23,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:23,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1332635061, now seen corresponding path program 1 times [2024-11-14 02:42:23,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:23,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520706682] [2024-11-14 02:42:23,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:23,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:23,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:23,599 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 02:42:23,601 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:23,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520706682] [2024-11-14 02:42:23,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520706682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:23,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:23,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 02:42:23,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481735073] [2024-11-14 02:42:23,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:23,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:42:23,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:23,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:42:23,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:42:23,603 INFO L87 Difference]: Start difference. First operand 4580 states and 6200 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:42:24,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:24,260 INFO L93 Difference]: Finished difference Result 12149 states and 16636 transitions. [2024-11-14 02:42:24,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:42:24,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-14 02:42:24,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:24,292 INFO L225 Difference]: With dead ends: 12149 [2024-11-14 02:42:24,293 INFO L226 Difference]: Without dead ends: 7807 [2024-11-14 02:42:24,299 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 02:42:24,299 INFO L432 NwaCegarLoop]: 388 mSDtfsCounter, 2063 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2063 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:24,300 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2063 Valid, 508 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 02:42:24,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7807 states. [2024-11-14 02:42:24,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7807 to 7799. [2024-11-14 02:42:24,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7799 states, 7792 states have (on average 1.3570328542094456) internal successors, (10574), 7798 states have internal predecessors, (10574), 0 states have call successors, (0), 0 states 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 02:42:24,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7799 states to 7799 states and 10574 transitions. [2024-11-14 02:42:24,549 INFO L78 Accepts]: Start accepts. Automaton has 7799 states and 10574 transitions. Word has length 65 [2024-11-14 02:42:24,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:24,549 INFO L471 AbstractCegarLoop]: Abstraction has 7799 states and 10574 transitions. [2024-11-14 02:42:24,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:42:24,550 INFO L276 IsEmpty]: Start isEmpty. Operand 7799 states and 10574 transitions. [2024-11-14 02:42:24,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-14 02:42:24,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:24,556 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] [2024-11-14 02:42:24,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 02:42:24,556 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:42:24,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:24,557 INFO L85 PathProgramCache]: Analyzing trace with hash -254635222, now seen corresponding path program 1 times [2024-11-14 02:42:24,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:24,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540953400] [2024-11-14 02:42:24,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:24,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:24,722 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 02:42:24,722 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:24,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540953400] [2024-11-14 02:42:24,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540953400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:24,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:24,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:42:24,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751904451] [2024-11-14 02:42:24,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:24,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:42:24,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:24,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:42:24,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:42:24,725 INFO L87 Difference]: Start difference. First operand 7799 states and 10574 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 02:42:24,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:24,887 INFO L93 Difference]: Finished difference Result 20040 states and 27282 transitions. [2024-11-14 02:42:24,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:42:24,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-11-14 02:42:24,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:24,943 INFO L225 Difference]: With dead ends: 20040 [2024-11-14 02:42:24,943 INFO L226 Difference]: Without dead ends: 13255 [2024-11-14 02:42:24,953 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 02:42:24,954 INFO L432 NwaCegarLoop]: 744 mSDtfsCounter, 456 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:24,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 1185 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:42:24,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13255 states. [2024-11-14 02:42:25,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13255 to 13247. [2024-11-14 02:42:25,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13247 states, 13240 states have (on average 1.3452416918429002) internal successors, (17811), 13246 states have internal predecessors, (17811), 0 states have call successors, (0), 0 states 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 02:42:25,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13247 states to 13247 states and 17811 transitions. [2024-11-14 02:42:25,399 INFO L78 Accepts]: Start accepts. Automaton has 13247 states and 17811 transitions. Word has length 66 [2024-11-14 02:42:25,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:25,399 INFO L471 AbstractCegarLoop]: Abstraction has 13247 states and 17811 transitions. [2024-11-14 02:42:25,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 02:42:25,400 INFO L276 IsEmpty]: Start isEmpty. Operand 13247 states and 17811 transitions. [2024-11-14 02:42:25,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-14 02:42:25,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:25,409 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:42:25,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 02:42:25,410 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:42:25,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:25,411 INFO L85 PathProgramCache]: Analyzing trace with hash 2145810939, now seen corresponding path program 1 times [2024-11-14 02:42:25,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:25,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533151718] [2024-11-14 02:42:25,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:25,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:25,717 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 02:42:25,717 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:25,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533151718] [2024-11-14 02:42:25,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533151718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:25,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:25,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 02:42:25,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787628114] [2024-11-14 02:42:25,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:25,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 02:42:25,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:25,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 02:42:25,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:42:25,724 INFO L87 Difference]: Start difference. First operand 13247 states and 17811 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:42:27,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:27,084 INFO L93 Difference]: Finished difference Result 39435 states and 53625 transitions. [2024-11-14 02:42:27,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 02:42:27,085 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-14 02:42:27,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:27,177 INFO L225 Difference]: With dead ends: 39435 [2024-11-14 02:42:27,177 INFO L226 Difference]: Without dead ends: 33639 [2024-11-14 02:42:27,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-14 02:42:27,194 INFO L432 NwaCegarLoop]: 364 mSDtfsCounter, 2732 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2732 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:27,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2732 Valid, 941 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 02:42:27,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33639 states. [2024-11-14 02:42:27,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33639 to 13315. [2024-11-14 02:42:27,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13315 states, 13308 states have (on average 1.344980462879471) internal successors, (17899), 13314 states have internal predecessors, (17899), 0 states have call successors, (0), 0 states 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 02:42:27,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13315 states to 13315 states and 17899 transitions. [2024-11-14 02:42:27,718 INFO L78 Accepts]: Start accepts. Automaton has 13315 states and 17899 transitions. Word has length 67 [2024-11-14 02:42:27,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:27,718 INFO L471 AbstractCegarLoop]: Abstraction has 13315 states and 17899 transitions. [2024-11-14 02:42:27,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:42:27,720 INFO L276 IsEmpty]: Start isEmpty. Operand 13315 states and 17899 transitions. [2024-11-14 02:42:27,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-14 02:42:27,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:27,727 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:42:27,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 02:42:27,728 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:42:27,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:27,732 INFO L85 PathProgramCache]: Analyzing trace with hash -2044326195, now seen corresponding path program 1 times [2024-11-14 02:42:27,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:27,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777653345] [2024-11-14 02:42:27,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:27,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:27,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:28,064 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 02:42:28,065 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:28,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777653345] [2024-11-14 02:42:28,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777653345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:28,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:28,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 02:42:28,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782036648] [2024-11-14 02:42:28,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:28,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 02:42:28,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:28,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 02:42:28,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:42:28,067 INFO L87 Difference]: Start difference. First operand 13315 states and 17899 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:42:29,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:29,234 INFO L93 Difference]: Finished difference Result 36179 states and 49013 transitions. [2024-11-14 02:42:29,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 02:42:29,235 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-14 02:42:29,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:29,305 INFO L225 Difference]: With dead ends: 36179 [2024-11-14 02:42:29,305 INFO L226 Difference]: Without dead ends: 30557 [2024-11-14 02:42:29,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-14 02:42:29,317 INFO L432 NwaCegarLoop]: 358 mSDtfsCounter, 2676 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2676 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:29,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2676 Valid, 930 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 02:42:29,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30557 states. [2024-11-14 02:42:29,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30557 to 13437. [2024-11-14 02:42:29,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13437 states, 13430 states have (on average 1.344825018615041) internal successors, (18061), 13436 states have internal predecessors, (18061), 0 states have call successors, (0), 0 states 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 02:42:29,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13437 states to 13437 states and 18061 transitions. [2024-11-14 02:42:29,755 INFO L78 Accepts]: Start accepts. Automaton has 13437 states and 18061 transitions. Word has length 67 [2024-11-14 02:42:29,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:29,756 INFO L471 AbstractCegarLoop]: Abstraction has 13437 states and 18061 transitions. [2024-11-14 02:42:29,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:42:29,756 INFO L276 IsEmpty]: Start isEmpty. Operand 13437 states and 18061 transitions. [2024-11-14 02:42:29,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-14 02:42:29,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:29,763 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:42:29,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 02:42:29,763 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:42:29,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:29,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1189983517, now seen corresponding path program 1 times [2024-11-14 02:42:29,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:29,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627727835] [2024-11-14 02:42:29,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:29,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:30,075 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 02:42:30,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:30,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627727835] [2024-11-14 02:42:30,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627727835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:30,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:30,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 02:42:30,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359063395] [2024-11-14 02:42:30,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:30,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 02:42:30,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:30,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 02:42:30,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:42:30,078 INFO L87 Difference]: Start difference. First operand 13437 states and 18061 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:42:31,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:31,058 INFO L93 Difference]: Finished difference Result 33083 states and 44623 transitions. [2024-11-14 02:42:31,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 02:42:31,059 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-14 02:42:31,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:31,108 INFO L225 Difference]: With dead ends: 33083 [2024-11-14 02:42:31,108 INFO L226 Difference]: Without dead ends: 27725 [2024-11-14 02:42:31,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-14 02:42:31,119 INFO L432 NwaCegarLoop]: 341 mSDtfsCounter, 2639 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2639 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:31,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2639 Valid, 926 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 02:42:31,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27725 states. [2024-11-14 02:42:31,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27725 to 13508. [2024-11-14 02:42:31,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13508 states, 13501 states have (on average 1.3450855492185765) internal successors, (18160), 13507 states have internal predecessors, (18160), 0 states have call successors, (0), 0 states 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 02:42:31,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13508 states to 13508 states and 18160 transitions. [2024-11-14 02:42:31,471 INFO L78 Accepts]: Start accepts. Automaton has 13508 states and 18160 transitions. Word has length 67 [2024-11-14 02:42:31,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:31,472 INFO L471 AbstractCegarLoop]: Abstraction has 13508 states and 18160 transitions. [2024-11-14 02:42:31,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:42:31,472 INFO L276 IsEmpty]: Start isEmpty. Operand 13508 states and 18160 transitions. [2024-11-14 02:42:31,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-14 02:42:31,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:31,480 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:42:31,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-14 02:42:31,480 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:42:31,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:31,480 INFO L85 PathProgramCache]: Analyzing trace with hash -92881536, now seen corresponding path program 1 times [2024-11-14 02:42:31,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:31,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816480031] [2024-11-14 02:42:31,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:31,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:31,708 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 02:42:31,708 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:31,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816480031] [2024-11-14 02:42:31,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816480031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:31,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:31,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 02:42:31,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718635861] [2024-11-14 02:42:31,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:31,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 02:42:31,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:31,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 02:42:31,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:42:31,710 INFO L87 Difference]: Start difference. First operand 13508 states and 18160 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:42:32,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:32,528 INFO L93 Difference]: Finished difference Result 30067 states and 40337 transitions. [2024-11-14 02:42:32,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 02:42:32,529 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-14 02:42:32,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:32,583 INFO L225 Difference]: With dead ends: 30067 [2024-11-14 02:42:32,583 INFO L226 Difference]: Without dead ends: 24249 [2024-11-14 02:42:32,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-14 02:42:32,606 INFO L432 NwaCegarLoop]: 369 mSDtfsCounter, 2490 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2490 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:32,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2490 Valid, 896 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 02:42:32,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24249 states. [2024-11-14 02:42:32,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24249 to 13543. [2024-11-14 02:42:32,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13543 states, 13536 states have (on average 1.3449320330969268) internal successors, (18205), 13542 states have internal predecessors, (18205), 0 states have call successors, (0), 0 states 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 02:42:32,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13543 states to 13543 states and 18205 transitions. [2024-11-14 02:42:32,999 INFO L78 Accepts]: Start accepts. Automaton has 13543 states and 18205 transitions. Word has length 67 [2024-11-14 02:42:32,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:32,999 INFO L471 AbstractCegarLoop]: Abstraction has 13543 states and 18205 transitions. [2024-11-14 02:42:32,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:42:32,999 INFO L276 IsEmpty]: Start isEmpty. Operand 13543 states and 18205 transitions. [2024-11-14 02:42:33,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-14 02:42:33,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:33,005 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] [2024-11-14 02:42:33,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-14 02:42:33,006 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:42:33,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:33,006 INFO L85 PathProgramCache]: Analyzing trace with hash 680595235, now seen corresponding path program 1 times [2024-11-14 02:42:33,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:33,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429837604] [2024-11-14 02:42:33,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:33,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:33,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:33,777 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 02:42:33,777 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:33,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429837604] [2024-11-14 02:42:33,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429837604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:33,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:33,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 02:42:33,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040938410] [2024-11-14 02:42:33,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:33,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 02:42:33,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:33,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 02:42:33,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:42:33,779 INFO L87 Difference]: Start difference. First operand 13543 states and 18205 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states 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 02:42:34,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:34,711 INFO L93 Difference]: Finished difference Result 29946 states and 40412 transitions. [2024-11-14 02:42:34,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 02:42:34,712 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-11-14 02:42:34,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:34,747 INFO L225 Difference]: With dead ends: 29946 [2024-11-14 02:42:34,747 INFO L226 Difference]: Without dead ends: 18724 [2024-11-14 02:42:34,758 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 02:42:34,759 INFO L432 NwaCegarLoop]: 352 mSDtfsCounter, 1775 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 1019 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1775 SdHoareTripleChecker+Valid, 1249 SdHoareTripleChecker+Invalid, 1032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:34,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1775 Valid, 1249 Invalid, 1032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1019 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 02:42:34,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18724 states. [2024-11-14 02:42:35,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18724 to 13241. [2024-11-14 02:42:35,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13241 states, 13234 states have (on average 1.3434335801722834) internal successors, (17779), 13240 states have internal predecessors, (17779), 0 states have call successors, (0), 0 states 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 02:42:35,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13241 states to 13241 states and 17779 transitions. [2024-11-14 02:42:35,078 INFO L78 Accepts]: Start accepts. Automaton has 13241 states and 17779 transitions. Word has length 68 [2024-11-14 02:42:35,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:35,079 INFO L471 AbstractCegarLoop]: Abstraction has 13241 states and 17779 transitions. [2024-11-14 02:42:35,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states 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 02:42:35,079 INFO L276 IsEmpty]: Start isEmpty. Operand 13241 states and 17779 transitions. [2024-11-14 02:42:35,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-14 02:42:35,087 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:35,087 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] [2024-11-14 02:42:35,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-14 02:42:35,088 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:42:35,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:35,088 INFO L85 PathProgramCache]: Analyzing trace with hash 718017329, now seen corresponding path program 1 times [2024-11-14 02:42:35,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:35,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200075562] [2024-11-14 02:42:35,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:35,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:35,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:35,620 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 02:42:35,620 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:35,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200075562] [2024-11-14 02:42:35,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200075562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:35,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:35,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 02:42:35,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799208566] [2024-11-14 02:42:35,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:35,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 02:42:35,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:35,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 02:42:35,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-14 02:42:35,623 INFO L87 Difference]: Start difference. First operand 13241 states and 17779 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states 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 02:42:36,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:36,960 INFO L93 Difference]: Finished difference Result 30256 states and 40686 transitions. [2024-11-14 02:42:36,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 02:42:36,960 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-11-14 02:42:36,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:36,991 INFO L225 Difference]: With dead ends: 30256 [2024-11-14 02:42:36,991 INFO L226 Difference]: Without dead ends: 19492 [2024-11-14 02:42:37,005 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 02:42:37,006 INFO L432 NwaCegarLoop]: 433 mSDtfsCounter, 1456 mSDsluCounter, 1278 mSDsCounter, 0 mSdLazyCounter, 1165 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1456 SdHoareTripleChecker+Valid, 1711 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:37,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1456 Valid, 1711 Invalid, 1190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1165 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 02:42:37,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19492 states. [2024-11-14 02:42:37,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19492 to 13110. [2024-11-14 02:42:37,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13110 states, 13103 states have (on average 1.3429748912462796) internal successors, (17597), 13109 states have internal predecessors, (17597), 0 states have call successors, (0), 0 states 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 02:42:37,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13110 states to 13110 states and 17597 transitions. [2024-11-14 02:42:37,402 INFO L78 Accepts]: Start accepts. Automaton has 13110 states and 17597 transitions. Word has length 68 [2024-11-14 02:42:37,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:37,404 INFO L471 AbstractCegarLoop]: Abstraction has 13110 states and 17597 transitions. [2024-11-14 02:42:37,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states 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 02:42:37,404 INFO L276 IsEmpty]: Start isEmpty. Operand 13110 states and 17597 transitions. [2024-11-14 02:42:37,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-14 02:42:37,467 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:37,467 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] [2024-11-14 02:42:37,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-14 02:42:37,467 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:42:37,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:37,468 INFO L85 PathProgramCache]: Analyzing trace with hash -2097490812, now seen corresponding path program 1 times [2024-11-14 02:42:37,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:37,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139538612] [2024-11-14 02:42:37,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:37,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:37,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:42:37,959 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:37,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139538612] [2024-11-14 02:42:37,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139538612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:37,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:37,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 02:42:37,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804497286] [2024-11-14 02:42:37,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:37,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 02:42:37,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:37,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 02:42:37,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-14 02:42:37,960 INFO L87 Difference]: Start difference. First operand 13110 states and 17597 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states 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 02:42:39,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:39,355 INFO L93 Difference]: Finished difference Result 29953 states and 40268 transitions. [2024-11-14 02:42:39,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 02:42:39,356 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-11-14 02:42:39,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:39,382 INFO L225 Difference]: With dead ends: 29953 [2024-11-14 02:42:39,382 INFO L226 Difference]: Without dead ends: 19413 [2024-11-14 02:42:39,392 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 02:42:39,392 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 2156 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 1220 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2156 SdHoareTripleChecker+Valid, 1667 SdHoareTripleChecker+Invalid, 1247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:39,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2156 Valid, 1667 Invalid, 1247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1220 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 02:42:39,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19413 states. [2024-11-14 02:42:39,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19413 to 13090. [2024-11-14 02:42:39,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13090 states, 13083 states have (on average 1.342581976610869) internal successors, (17565), 13089 states have internal predecessors, (17565), 0 states have call successors, (0), 0 states 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 02:42:39,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13090 states to 13090 states and 17565 transitions. [2024-11-14 02:42:39,619 INFO L78 Accepts]: Start accepts. Automaton has 13090 states and 17565 transitions. Word has length 68 [2024-11-14 02:42:39,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:39,619 INFO L471 AbstractCegarLoop]: Abstraction has 13090 states and 17565 transitions. [2024-11-14 02:42:39,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states 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 02:42:39,620 INFO L276 IsEmpty]: Start isEmpty. Operand 13090 states and 17565 transitions. [2024-11-14 02:42:39,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-14 02:42:39,625 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:39,625 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] [2024-11-14 02:42:39,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-14 02:42:39,625 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:42:39,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:39,626 INFO L85 PathProgramCache]: Analyzing trace with hash 2111634662, now seen corresponding path program 1 times [2024-11-14 02:42:39,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:39,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600075548] [2024-11-14 02:42:39,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:39,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:39,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:40,177 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 02:42:40,177 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:40,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600075548] [2024-11-14 02:42:40,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600075548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:40,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:40,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 02:42:40,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829589583] [2024-11-14 02:42:40,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:40,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 02:42:40,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:40,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 02:42:40,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-14 02:42:40,181 INFO L87 Difference]: Start difference. First operand 13090 states and 17565 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states 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 02:42:41,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:41,641 INFO L93 Difference]: Finished difference Result 29766 states and 39999 transitions. [2024-11-14 02:42:41,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 02:42:41,642 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-11-14 02:42:41,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:41,672 INFO L225 Difference]: With dead ends: 29766 [2024-11-14 02:42:41,672 INFO L226 Difference]: Without dead ends: 19251 [2024-11-14 02:42:41,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-11-14 02:42:41,684 INFO L432 NwaCegarLoop]: 424 mSDtfsCounter, 1889 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1889 SdHoareTripleChecker+Valid, 1630 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:41,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1889 Valid, 1630 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 02:42:41,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19251 states. [2024-11-14 02:42:42,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19251 to 13081. [2024-11-14 02:42:42,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13081 states, 13074 states have (on average 1.3422059048493193) internal successors, (17548), 13080 states have internal predecessors, (17548), 0 states have call successors, (0), 0 states 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 02:42:42,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13081 states to 13081 states and 17548 transitions. [2024-11-14 02:42:42,062 INFO L78 Accepts]: Start accepts. Automaton has 13081 states and 17548 transitions. Word has length 68 [2024-11-14 02:42:42,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:42,062 INFO L471 AbstractCegarLoop]: Abstraction has 13081 states and 17548 transitions. [2024-11-14 02:42:42,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states 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 02:42:42,063 INFO L276 IsEmpty]: Start isEmpty. Operand 13081 states and 17548 transitions. [2024-11-14 02:42:42,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-14 02:42:42,067 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:42,067 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] [2024-11-14 02:42:42,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-14 02:42:42,067 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:42:42,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:42,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1885132627, now seen corresponding path program 1 times [2024-11-14 02:42:42,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:42,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309495982] [2024-11-14 02:42:42,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:42,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:42,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:43,171 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 02:42:43,171 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:43,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309495982] [2024-11-14 02:42:43,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309495982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:43,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:43,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-14 02:42:43,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548265113] [2024-11-14 02:42:43,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:43,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 02:42:43,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:43,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 02:42:43,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-14 02:42:43,175 INFO L87 Difference]: Start difference. First operand 13081 states and 17548 transitions. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 10 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 02:42:44,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:44,568 INFO L93 Difference]: Finished difference Result 29237 states and 39461 transitions. [2024-11-14 02:42:44,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 02:42:44,569 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 10 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 69 [2024-11-14 02:42:44,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:44,588 INFO L225 Difference]: With dead ends: 29237 [2024-11-14 02:42:44,588 INFO L226 Difference]: Without dead ends: 18725 [2024-11-14 02:42:44,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2024-11-14 02:42:44,596 INFO L432 NwaCegarLoop]: 570 mSDtfsCounter, 1844 mSDsluCounter, 2390 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1844 SdHoareTripleChecker+Valid, 2960 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:44,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1844 Valid, 2960 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 894 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 02:42:44,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18725 states. [2024-11-14 02:42:44,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18725 to 13067. [2024-11-14 02:42:44,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13067 states, 13061 states have (on average 1.3416277467268969) internal successors, (17523), 13066 states have internal predecessors, (17523), 0 states have call successors, (0), 0 states 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 02:42:44,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13067 states to 13067 states and 17523 transitions. [2024-11-14 02:42:44,801 INFO L78 Accepts]: Start accepts. Automaton has 13067 states and 17523 transitions. Word has length 69 [2024-11-14 02:42:44,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:44,802 INFO L471 AbstractCegarLoop]: Abstraction has 13067 states and 17523 transitions. [2024-11-14 02:42:44,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 10 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 02:42:44,802 INFO L276 IsEmpty]: Start isEmpty. Operand 13067 states and 17523 transitions. [2024-11-14 02:42:44,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-14 02:42:44,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:44,808 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:42:44,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-14 02:42:44,808 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:42:44,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:44,809 INFO L85 PathProgramCache]: Analyzing trace with hash -578802053, now seen corresponding path program 1 times [2024-11-14 02:42:44,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:44,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492135522] [2024-11-14 02:42:44,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:44,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:44,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:45,807 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 02:42:45,807 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:45,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492135522] [2024-11-14 02:42:45,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492135522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:45,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:45,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-14 02:42:45,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120193065] [2024-11-14 02:42:45,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:45,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 02:42:45,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:45,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 02:42:45,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-14 02:42:45,810 INFO L87 Difference]: Start difference. First operand 13067 states and 17523 transitions. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 10 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 02:42:47,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:47,503 INFO L93 Difference]: Finished difference Result 41525 states and 55948 transitions. [2024-11-14 02:42:47,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 02:42:47,504 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 10 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 69 [2024-11-14 02:42:47,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:47,548 INFO L225 Difference]: With dead ends: 41525 [2024-11-14 02:42:47,549 INFO L226 Difference]: Without dead ends: 30777 [2024-11-14 02:42:47,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2024-11-14 02:42:47,564 INFO L432 NwaCegarLoop]: 562 mSDtfsCounter, 3667 mSDsluCounter, 2104 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3667 SdHoareTripleChecker+Valid, 2666 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:47,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3667 Valid, 2666 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 02:42:47,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30777 states. [2024-11-14 02:42:47,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30777 to 12843. [2024-11-14 02:42:47,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12843 states, 12838 states have (on average 1.3402399127589968) internal successors, (17206), 12842 states have internal predecessors, (17206), 0 states have call successors, (0), 0 states 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 02:42:47,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12843 states to 12843 states and 17206 transitions. [2024-11-14 02:42:47,844 INFO L78 Accepts]: Start accepts. Automaton has 12843 states and 17206 transitions. Word has length 69 [2024-11-14 02:42:47,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:47,845 INFO L471 AbstractCegarLoop]: Abstraction has 12843 states and 17206 transitions. [2024-11-14 02:42:47,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 10 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 02:42:47,845 INFO L276 IsEmpty]: Start isEmpty. Operand 12843 states and 17206 transitions. [2024-11-14 02:42:47,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-14 02:42:47,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:47,852 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:42:47,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-14 02:42:47,852 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:42:47,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:47,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1227479287, now seen corresponding path program 1 times [2024-11-14 02:42:47,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:47,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133312448] [2024-11-14 02:42:47,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:47,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:47,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:47,960 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 02:42:47,960 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:47,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133312448] [2024-11-14 02:42:47,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133312448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:47,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:47,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:42:47,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470142683] [2024-11-14 02:42:47,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:47,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:42:47,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:47,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:42:47,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:42:47,961 INFO L87 Difference]: Start difference. First operand 12843 states and 17206 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 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 02:42:48,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:48,082 INFO L93 Difference]: Finished difference Result 18714 states and 25141 transitions. [2024-11-14 02:42:48,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:42:48,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 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 69 [2024-11-14 02:42:48,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:48,099 INFO L225 Difference]: With dead ends: 18714 [2024-11-14 02:42:48,099 INFO L226 Difference]: Without dead ends: 12849 [2024-11-14 02:42:48,105 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 02:42:48,106 INFO L432 NwaCegarLoop]: 708 mSDtfsCounter, 373 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:48,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 1206 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:42:48,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12849 states. [2024-11-14 02:42:48,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12849 to 12843. [2024-11-14 02:42:48,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12843 states, 12838 states have (on average 1.3291011060912914) internal successors, (17063), 12842 states have internal predecessors, (17063), 0 states have call successors, (0), 0 states 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 02:42:48,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12843 states to 12843 states and 17063 transitions. [2024-11-14 02:42:48,290 INFO L78 Accepts]: Start accepts. Automaton has 12843 states and 17063 transitions. Word has length 69 [2024-11-14 02:42:48,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:48,291 INFO L471 AbstractCegarLoop]: Abstraction has 12843 states and 17063 transitions. [2024-11-14 02:42:48,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 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 02:42:48,291 INFO L276 IsEmpty]: Start isEmpty. Operand 12843 states and 17063 transitions. [2024-11-14 02:42:48,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-14 02:42:48,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:48,296 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] [2024-11-14 02:42:48,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-14 02:42:48,296 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:42:48,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:48,297 INFO L85 PathProgramCache]: Analyzing trace with hash -360349785, now seen corresponding path program 1 times [2024-11-14 02:42:48,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:48,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424711516] [2024-11-14 02:42:48,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:48,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:48,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:49,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:42:49,190 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:49,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424711516] [2024-11-14 02:42:49,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424711516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:49,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:49,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-14 02:42:49,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551110492] [2024-11-14 02:42:49,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:49,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 02:42:49,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:49,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 02:42:49,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-14 02:42:49,193 INFO L87 Difference]: Start difference. First operand 12843 states and 17063 transitions. Second operand has 12 states, 12 states have (on average 5.75) internal successors, (69), 11 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 02:42:50,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:50,385 INFO L93 Difference]: Finished difference Result 27796 states and 37182 transitions. [2024-11-14 02:42:50,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 02:42:50,386 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 11 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 69 [2024-11-14 02:42:50,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:50,412 INFO L225 Difference]: With dead ends: 27796 [2024-11-14 02:42:50,413 INFO L226 Difference]: Without dead ends: 17027 [2024-11-14 02:42:50,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2024-11-14 02:42:50,424 INFO L432 NwaCegarLoop]: 565 mSDtfsCounter, 2952 mSDsluCounter, 2044 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2952 SdHoareTripleChecker+Valid, 2609 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:50,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2952 Valid, 2609 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 02:42:50,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17027 states. [2024-11-14 02:42:50,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17027 to 12566. [2024-11-14 02:42:50,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12566 states, 12563 states have (on average 1.3295391228209823) internal successors, (16703), 12565 states have internal predecessors, (16703), 0 states have call successors, (0), 0 states 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 02:42:50,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12566 states to 12566 states and 16703 transitions. [2024-11-14 02:42:50,692 INFO L78 Accepts]: Start accepts. Automaton has 12566 states and 16703 transitions. Word has length 69 [2024-11-14 02:42:50,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:50,693 INFO L471 AbstractCegarLoop]: Abstraction has 12566 states and 16703 transitions. [2024-11-14 02:42:50,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 11 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 02:42:50,693 INFO L276 IsEmpty]: Start isEmpty. Operand 12566 states and 16703 transitions. [2024-11-14 02:42:50,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-14 02:42:50,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:50,698 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 02:42:50,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-14 02:42:50,699 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:42:50,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:50,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1045808869, now seen corresponding path program 1 times [2024-11-14 02:42:50,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:50,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843454523] [2024-11-14 02:42:50,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:50,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:50,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:50,791 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 02:42:50,792 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:50,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843454523] [2024-11-14 02:42:50,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843454523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:50,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:50,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:42:50,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939247421] [2024-11-14 02:42:50,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:50,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:42:50,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:50,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:42:50,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:42:50,795 INFO L87 Difference]: Start difference. First operand 12566 states and 16703 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:42:50,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:50,997 INFO L93 Difference]: Finished difference Result 23690 states and 31544 transitions. [2024-11-14 02:42:50,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:42:50,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-14 02:42:50,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:51,020 INFO L225 Difference]: With dead ends: 23690 [2024-11-14 02:42:51,021 INFO L226 Difference]: Without dead ends: 17318 [2024-11-14 02:42:51,029 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 02:42:51,029 INFO L432 NwaCegarLoop]: 352 mSDtfsCounter, 341 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:51,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 453 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:42:51,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17318 states. [2024-11-14 02:42:51,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17318 to 17316. [2024-11-14 02:42:51,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17316 states, 17315 states have (on average 1.330580421599769) internal successors, (23039), 17315 states have internal predecessors, (23039), 0 states have call successors, (0), 0 states 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 02:42:51,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17316 states to 17316 states and 23039 transitions. [2024-11-14 02:42:51,260 INFO L78 Accepts]: Start accepts. Automaton has 17316 states and 23039 transitions. Word has length 71 [2024-11-14 02:42:51,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:51,260 INFO L471 AbstractCegarLoop]: Abstraction has 17316 states and 23039 transitions. [2024-11-14 02:42:51,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:42:51,260 INFO L276 IsEmpty]: Start isEmpty. Operand 17316 states and 23039 transitions. [2024-11-14 02:42:51,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-14 02:42:51,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:51,267 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:42:51,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-14 02:42:51,267 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:42:51,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:51,268 INFO L85 PathProgramCache]: Analyzing trace with hash -2130708596, now seen corresponding path program 1 times [2024-11-14 02:42:51,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:51,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65860259] [2024-11-14 02:42:51,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:51,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:51,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:51,500 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 02:42:51,501 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:51,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65860259] [2024-11-14 02:42:51,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65860259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:51,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:51,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 02:42:51,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333481252] [2024-11-14 02:42:51,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:51,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 02:42:51,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:51,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 02:42:51,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-14 02:42:51,503 INFO L87 Difference]: Start difference. First operand 17316 states and 23039 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:42:51,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:51,847 INFO L93 Difference]: Finished difference Result 24385 states and 32460 transitions. [2024-11-14 02:42:51,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 02:42:51,848 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-14 02:42:51,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:51,872 INFO L225 Difference]: With dead ends: 24385 [2024-11-14 02:42:51,872 INFO L226 Difference]: Without dead ends: 16357 [2024-11-14 02:42:51,880 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-14 02:42:51,883 INFO L432 NwaCegarLoop]: 543 mSDtfsCounter, 874 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 874 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:51,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [874 Valid, 1095 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 02:42:51,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16357 states. [2024-11-14 02:42:52,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16357 to 13112. [2024-11-14 02:42:52,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13112 states, 13111 states have (on average 1.316451834337579) internal successors, (17260), 13111 states have internal predecessors, (17260), 0 states have call successors, (0), 0 states 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 02:42:52,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13112 states to 13112 states and 17260 transitions. [2024-11-14 02:42:52,081 INFO L78 Accepts]: Start accepts. Automaton has 13112 states and 17260 transitions. Word has length 75 [2024-11-14 02:42:52,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:52,081 INFO L471 AbstractCegarLoop]: Abstraction has 13112 states and 17260 transitions. [2024-11-14 02:42:52,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:42:52,081 INFO L276 IsEmpty]: Start isEmpty. Operand 13112 states and 17260 transitions. [2024-11-14 02:42:52,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-14 02:42:52,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:52,091 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:42:52,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-14 02:42:52,091 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:42:52,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:52,092 INFO L85 PathProgramCache]: Analyzing trace with hash -958037758, now seen corresponding path program 1 times [2024-11-14 02:42:52,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:52,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30223880] [2024-11-14 02:42:52,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:52,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:52,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:52,344 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 02:42:52,344 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:52,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30223880] [2024-11-14 02:42:52,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30223880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:52,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:52,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:42:52,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990720210] [2024-11-14 02:42:52,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:52,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:42:52,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:52,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:42:52,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:42:52,346 INFO L87 Difference]: Start difference. First operand 13112 states and 17260 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 02:42:52,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:52,473 INFO L93 Difference]: Finished difference Result 27682 states and 36791 transitions. [2024-11-14 02:42:52,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:42:52,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 02:42:52,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:52,498 INFO L225 Difference]: With dead ends: 27682 [2024-11-14 02:42:52,498 INFO L226 Difference]: Without dead ends: 19268 [2024-11-14 02:42:52,508 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 02:42:52,508 INFO L432 NwaCegarLoop]: 439 mSDtfsCounter, 124 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:52,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 757 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 02:42:52,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19268 states. [2024-11-14 02:42:52,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19268 to 18008. [2024-11-14 02:42:52,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18008 states, 18007 states have (on average 1.3121563836285888) internal successors, (23628), 18007 states have internal predecessors, (23628), 0 states have call successors, (0), 0 states 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 02:42:52,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18008 states to 18008 states and 23628 transitions. [2024-11-14 02:42:52,767 INFO L78 Accepts]: Start accepts. Automaton has 18008 states and 23628 transitions. Word has length 76 [2024-11-14 02:42:52,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:52,767 INFO L471 AbstractCegarLoop]: Abstraction has 18008 states and 23628 transitions. [2024-11-14 02:42:52,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 02:42:52,768 INFO L276 IsEmpty]: Start isEmpty. Operand 18008 states and 23628 transitions. [2024-11-14 02:42:52,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-14 02:42:52,772 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:52,772 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:42:52,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-14 02:42:52,773 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:42:52,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:52,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1768965219, now seen corresponding path program 1 times [2024-11-14 02:42:52,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:52,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126745707] [2024-11-14 02:42:52,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:52,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:52,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:52,939 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 02:42:52,939 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:52,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126745707] [2024-11-14 02:42:52,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126745707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:52,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:52,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:42:52,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57302108] [2024-11-14 02:42:52,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:52,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:42:52,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:52,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:42:52,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:42:52,941 INFO L87 Difference]: Start difference. First operand 18008 states and 23628 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states 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 02:42:53,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:53,109 INFO L93 Difference]: Finished difference Result 39098 states and 51740 transitions. [2024-11-14 02:42:53,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:42:53,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-11-14 02:42:53,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:53,150 INFO L225 Difference]: With dead ends: 39098 [2024-11-14 02:42:53,150 INFO L226 Difference]: Without dead ends: 27008 [2024-11-14 02:42:53,163 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 02:42:53,163 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 112 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:53,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 746 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:42:53,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27008 states. [2024-11-14 02:42:53,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27008 to 25038. [2024-11-14 02:42:53,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25038 states, 25037 states have (on average 1.301673523185685) internal successors, (32590), 25037 states have internal predecessors, (32590), 0 states have call successors, (0), 0 states 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 02:42:53,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25038 states to 25038 states and 32590 transitions. [2024-11-14 02:42:53,553 INFO L78 Accepts]: Start accepts. Automaton has 25038 states and 32590 transitions. Word has length 79 [2024-11-14 02:42:53,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:53,554 INFO L471 AbstractCegarLoop]: Abstraction has 25038 states and 32590 transitions. [2024-11-14 02:42:53,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states 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 02:42:53,554 INFO L276 IsEmpty]: Start isEmpty. Operand 25038 states and 32590 transitions. [2024-11-14 02:42:53,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-14 02:42:53,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:53,559 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:42:53,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-14 02:42:53,560 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:42:53,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:53,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1964363624, now seen corresponding path program 1 times [2024-11-14 02:42:53,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:53,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092946550] [2024-11-14 02:42:53,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:53,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:53,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:53,666 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 02:42:53,666 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:53,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092946550] [2024-11-14 02:42:53,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092946550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:53,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:53,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:42:53,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568308685] [2024-11-14 02:42:53,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:53,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:42:53,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:53,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:42:53,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:42:53,668 INFO L87 Difference]: Start difference. First operand 25038 states and 32590 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states 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 02:42:53,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:53,805 INFO L93 Difference]: Finished difference Result 34205 states and 44571 transitions. [2024-11-14 02:42:53,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:42:53,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-14 02:42:53,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:53,837 INFO L225 Difference]: With dead ends: 34205 [2024-11-14 02:42:53,837 INFO L226 Difference]: Without dead ends: 23680 [2024-11-14 02:42:53,847 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 02:42:53,848 INFO L432 NwaCegarLoop]: 447 mSDtfsCounter, 203 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:53,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 794 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 02:42:53,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23680 states. [2024-11-14 02:42:54,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23680 to 23678. [2024-11-14 02:42:54,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23678 states, 23677 states have (on average 1.2914642902394728) internal successors, (30578), 23677 states have internal predecessors, (30578), 0 states have call successors, (0), 0 states 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 02:42:54,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23678 states to 23678 states and 30578 transitions. [2024-11-14 02:42:54,294 INFO L78 Accepts]: Start accepts. Automaton has 23678 states and 30578 transitions. Word has length 82 [2024-11-14 02:42:54,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:54,294 INFO L471 AbstractCegarLoop]: Abstraction has 23678 states and 30578 transitions. [2024-11-14 02:42:54,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states 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 02:42:54,295 INFO L276 IsEmpty]: Start isEmpty. Operand 23678 states and 30578 transitions. [2024-11-14 02:42:54,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-14 02:42:54,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:54,299 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:42:54,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-14 02:42:54,299 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:42:54,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:54,300 INFO L85 PathProgramCache]: Analyzing trace with hash 736812151, now seen corresponding path program 1 times [2024-11-14 02:42:54,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:54,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473729953] [2024-11-14 02:42:54,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:54,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:54,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:54,471 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 02:42:54,471 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:54,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473729953] [2024-11-14 02:42:54,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473729953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:54,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:54,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:42:54,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779633877] [2024-11-14 02:42:54,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:54,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:42:54,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:54,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:42:54,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:42:54,473 INFO L87 Difference]: Start difference. First operand 23678 states and 30578 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states 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 02:42:54,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:54,688 INFO L93 Difference]: Finished difference Result 51787 states and 67384 transitions. [2024-11-14 02:42:54,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:42:54,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-14 02:42:54,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:54,741 INFO L225 Difference]: With dead ends: 51787 [2024-11-14 02:42:54,741 INFO L226 Difference]: Without dead ends: 35405 [2024-11-14 02:42:54,757 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 02:42:54,758 INFO L432 NwaCegarLoop]: 403 mSDtfsCounter, 99 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:54,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 728 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:42:54,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35405 states. [2024-11-14 02:42:55,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35405 to 32922. [2024-11-14 02:42:55,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32922 states, 32921 states have (on average 1.279578384617721) internal successors, (42125), 32921 states have internal predecessors, (42125), 0 states have call successors, (0), 0 states 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 02:42:55,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32922 states to 32922 states and 42125 transitions. [2024-11-14 02:42:55,234 INFO L78 Accepts]: Start accepts. Automaton has 32922 states and 42125 transitions. Word has length 82 [2024-11-14 02:42:55,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:55,234 INFO L471 AbstractCegarLoop]: Abstraction has 32922 states and 42125 transitions. [2024-11-14 02:42:55,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states 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 02:42:55,235 INFO L276 IsEmpty]: Start isEmpty. Operand 32922 states and 42125 transitions. [2024-11-14 02:42:55,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-14 02:42:55,239 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:55,239 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:42:55,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-14 02:42:55,240 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:42:55,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:55,240 INFO L85 PathProgramCache]: Analyzing trace with hash 732730898, now seen corresponding path program 1 times [2024-11-14 02:42:55,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:55,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933263985] [2024-11-14 02:42:55,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:55,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:55,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:55,338 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 02:42:55,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:55,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933263985] [2024-11-14 02:42:55,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933263985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:55,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:55,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:42:55,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362340606] [2024-11-14 02:42:55,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:55,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:42:55,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:55,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:42:55,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:42:55,340 INFO L87 Difference]: Start difference. First operand 32922 states and 42125 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:42:55,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:55,502 INFO L93 Difference]: Finished difference Result 40486 states and 51837 transitions. [2024-11-14 02:42:55,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:42:55,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-14 02:42:55,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:55,546 INFO L225 Difference]: With dead ends: 40486 [2024-11-14 02:42:55,546 INFO L226 Difference]: Without dead ends: 29725 [2024-11-14 02:42:55,559 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 02:42:55,560 INFO L432 NwaCegarLoop]: 475 mSDtfsCounter, 160 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:55,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 762 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:42:55,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29725 states. [2024-11-14 02:42:56,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29725 to 29723. [2024-11-14 02:42:56,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29723 states, 29722 states have (on average 1.2720880156113317) internal successors, (37809), 29722 states have internal predecessors, (37809), 0 states have call successors, (0), 0 states 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 02:42:56,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29723 states to 29723 states and 37809 transitions. [2024-11-14 02:42:56,123 INFO L78 Accepts]: Start accepts. Automaton has 29723 states and 37809 transitions. Word has length 85 [2024-11-14 02:42:56,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:56,124 INFO L471 AbstractCegarLoop]: Abstraction has 29723 states and 37809 transitions. [2024-11-14 02:42:56,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:42:56,124 INFO L276 IsEmpty]: Start isEmpty. Operand 29723 states and 37809 transitions. [2024-11-14 02:42:56,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-14 02:42:56,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:56,129 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:42:56,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-14 02:42:56,129 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:42:56,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:56,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1294971442, now seen corresponding path program 1 times [2024-11-14 02:42:56,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:56,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965249611] [2024-11-14 02:42:56,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:56,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:56,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:56,298 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 02:42:56,298 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:56,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965249611] [2024-11-14 02:42:56,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965249611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:56,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:56,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:42:56,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259659742] [2024-11-14 02:42:56,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:56,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:42:56,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:56,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:42:56,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:42:56,300 INFO L87 Difference]: Start difference. First operand 29723 states and 37809 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:42:56,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:56,588 INFO L93 Difference]: Finished difference Result 64360 states and 82545 transitions. [2024-11-14 02:42:56,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:42:56,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-11-14 02:42:56,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:56,650 INFO L225 Difference]: With dead ends: 64360 [2024-11-14 02:42:56,651 INFO L226 Difference]: Without dead ends: 44594 [2024-11-14 02:42:56,669 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 02:42:56,670 INFO L432 NwaCegarLoop]: 385 mSDtfsCounter, 77 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:56,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 708 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:42:56,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44594 states. [2024-11-14 02:42:57,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44594 to 41584. [2024-11-14 02:42:57,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41584 states, 41583 states have (on average 1.2648678546521415) internal successors, (52597), 41583 states have internal predecessors, (52597), 0 states have call successors, (0), 0 states 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 02:42:57,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41584 states to 41584 states and 52597 transitions. [2024-11-14 02:42:57,520 INFO L78 Accepts]: Start accepts. Automaton has 41584 states and 52597 transitions. Word has length 86 [2024-11-14 02:42:57,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:57,521 INFO L471 AbstractCegarLoop]: Abstraction has 41584 states and 52597 transitions. [2024-11-14 02:42:57,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:42:57,521 INFO L276 IsEmpty]: Start isEmpty. Operand 41584 states and 52597 transitions. [2024-11-14 02:42:57,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-14 02:42:57,525 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:57,525 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:42:57,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-14 02:42:57,526 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:42:57,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:57,526 INFO L85 PathProgramCache]: Analyzing trace with hash 390282247, now seen corresponding path program 1 times [2024-11-14 02:42:57,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:57,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143900876] [2024-11-14 02:42:57,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:57,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:57,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:58,407 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 02:42:58,407 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:58,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143900876] [2024-11-14 02:42:58,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143900876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:58,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:58,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-14 02:42:58,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669087517] [2024-11-14 02:42:58,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:58,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 02:42:58,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:58,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 02:42:58,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-14 02:42:58,408 INFO L87 Difference]: Start difference. First operand 41584 states and 52597 transitions. Second operand has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 0 states 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 02:42:59,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:59,045 INFO L93 Difference]: Finished difference Result 70657 states and 90109 transitions. [2024-11-14 02:42:59,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 02:42:59,046 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2024-11-14 02:42:59,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:59,122 INFO L225 Difference]: With dead ends: 70657 [2024-11-14 02:42:59,122 INFO L226 Difference]: Without dead ends: 70655 [2024-11-14 02:42:59,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2024-11-14 02:42:59,137 INFO L432 NwaCegarLoop]: 359 mSDtfsCounter, 1839 mSDsluCounter, 1774 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1839 SdHoareTripleChecker+Valid, 2133 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:59,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1839 Valid, 2133 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 02:42:59,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70655 states. [2024-11-14 02:42:59,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70655 to 45547. [2024-11-14 02:42:59,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45547 states, 45546 states have (on average 1.2632942519650463) internal successors, (57538), 45546 states have internal predecessors, (57538), 0 states have call successors, (0), 0 states 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 02:42:59,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45547 states to 45547 states and 57538 transitions. [2024-11-14 02:42:59,978 INFO L78 Accepts]: Start accepts. Automaton has 45547 states and 57538 transitions. Word has length 90 [2024-11-14 02:42:59,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:59,979 INFO L471 AbstractCegarLoop]: Abstraction has 45547 states and 57538 transitions. [2024-11-14 02:42:59,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 0 states 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 02:42:59,979 INFO L276 IsEmpty]: Start isEmpty. Operand 45547 states and 57538 transitions. [2024-11-14 02:42:59,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-14 02:42:59,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:59,983 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:42:59,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-14 02:42:59,983 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:42:59,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:59,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1211543286, now seen corresponding path program 1 times [2024-11-14 02:42:59,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:59,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420211999] [2024-11-14 02:42:59,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:59,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:43:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:43:00,185 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 02:43:00,185 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:43:00,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420211999] [2024-11-14 02:43:00,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420211999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:43:00,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:43:00,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 02:43:00,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114530471] [2024-11-14 02:43:00,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:43:00,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 02:43:00,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:43:00,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 02:43:00,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:43:00,187 INFO L87 Difference]: Start difference. First operand 45547 states and 57538 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:43:01,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:43:01,019 INFO L93 Difference]: Finished difference Result 76281 states and 96507 transitions. [2024-11-14 02:43:01,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 02:43:01,019 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-14 02:43:01,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:43:01,114 INFO L225 Difference]: With dead ends: 76281 [2024-11-14 02:43:01,115 INFO L226 Difference]: Without dead ends: 64003 [2024-11-14 02:43:01,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-14 02:43:01,139 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 1747 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1747 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 02:43:01,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1747 Valid, 655 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 02:43:01,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64003 states. [2024-11-14 02:43:02,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64003 to 45701. [2024-11-14 02:43:02,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45701 states, 45700 states have (on average 1.2629978118161926) internal successors, (57719), 45700 states have internal predecessors, (57719), 0 states have call successors, (0), 0 states 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 02:43:02,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45701 states to 45701 states and 57719 transitions. [2024-11-14 02:43:02,264 INFO L78 Accepts]: Start accepts. Automaton has 45701 states and 57719 transitions. Word has length 94 [2024-11-14 02:43:02,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:43:02,265 INFO L471 AbstractCegarLoop]: Abstraction has 45701 states and 57719 transitions. [2024-11-14 02:43:02,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:43:02,265 INFO L276 IsEmpty]: Start isEmpty. Operand 45701 states and 57719 transitions. [2024-11-14 02:43:02,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-14 02:43:02,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:43:02,269 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:43:02,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-14 02:43:02,269 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:43:02,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:43:02,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1953000605, now seen corresponding path program 1 times [2024-11-14 02:43:02,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:43:02,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259684973] [2024-11-14 02:43:02,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:43:02,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:43:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:43:02,356 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 02:43:02,356 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:43:02,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259684973] [2024-11-14 02:43:02,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259684973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:43:02,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:43:02,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:43:02,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449184909] [2024-11-14 02:43:02,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:43:02,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:43:02,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:43:02,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:43:02,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:43:02,357 INFO L87 Difference]: Start difference. First operand 45701 states and 57719 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states 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 02:43:02,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:43:02,622 INFO L93 Difference]: Finished difference Result 76129 states and 96185 transitions. [2024-11-14 02:43:02,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:43:02,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-14 02:43:02,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:43:02,700 INFO L225 Difference]: With dead ends: 76129 [2024-11-14 02:43:02,700 INFO L226 Difference]: Without dead ends: 53858 [2024-11-14 02:43:02,717 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 02:43:02,718 INFO L432 NwaCegarLoop]: 362 mSDtfsCounter, 336 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:43:02,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 488 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:43:02,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53858 states. [2024-11-14 02:43:03,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53858 to 44121. [2024-11-14 02:43:03,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44121 states, 44120 states have (on average 1.2588621940163192) internal successors, (55541), 44120 states have internal predecessors, (55541), 0 states have call successors, (0), 0 states 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 02:43:03,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44121 states to 44121 states and 55541 transitions. [2024-11-14 02:43:03,382 INFO L78 Accepts]: Start accepts. Automaton has 44121 states and 55541 transitions. Word has length 95 [2024-11-14 02:43:03,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:43:03,382 INFO L471 AbstractCegarLoop]: Abstraction has 44121 states and 55541 transitions. [2024-11-14 02:43:03,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states 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 02:43:03,383 INFO L276 IsEmpty]: Start isEmpty. Operand 44121 states and 55541 transitions. [2024-11-14 02:43:03,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-14 02:43:03,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:43:03,389 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:43:03,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-14 02:43:03,389 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:43:03,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:43:03,390 INFO L85 PathProgramCache]: Analyzing trace with hash -16488617, now seen corresponding path program 1 times [2024-11-14 02:43:03,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:43:03,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577672477] [2024-11-14 02:43:03,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:43:03,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:43:03,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:43:04,185 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 02:43:04,185 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:43:04,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577672477] [2024-11-14 02:43:04,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577672477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:43:04,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:43:04,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-14 02:43:04,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899260118] [2024-11-14 02:43:04,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:43:04,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 02:43:04,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:43:04,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 02:43:04,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-14 02:43:04,188 INFO L87 Difference]: Start difference. First operand 44121 states and 55541 transitions. Second operand has 10 states, 10 states have (on average 9.6) internal successors, (96), 10 states have internal predecessors, (96), 0 states have call successors, (0), 0 states 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 02:43:04,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:43:04,897 INFO L93 Difference]: Finished difference Result 68225 states and 86579 transitions. [2024-11-14 02:43:04,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 02:43:04,897 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.6) internal successors, (96), 10 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2024-11-14 02:43:04,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:43:04,998 INFO L225 Difference]: With dead ends: 68225 [2024-11-14 02:43:04,998 INFO L226 Difference]: Without dead ends: 68223 [2024-11-14 02:43:05,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2024-11-14 02:43:05,019 INFO L432 NwaCegarLoop]: 414 mSDtfsCounter, 1311 mSDsluCounter, 2195 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1311 SdHoareTripleChecker+Valid, 2609 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 02:43:05,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1311 Valid, 2609 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 02:43:05,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68223 states. [2024-11-14 02:43:06,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68223 to 45220. [2024-11-14 02:43:06,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45220 states, 45219 states have (on average 1.2582321590481877) internal successors, (56896), 45219 states have internal predecessors, (56896), 0 states have call successors, (0), 0 states 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 02:43:06,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45220 states to 45220 states and 56896 transitions. [2024-11-14 02:43:06,121 INFO L78 Accepts]: Start accepts. Automaton has 45220 states and 56896 transitions. Word has length 96 [2024-11-14 02:43:06,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:43:06,122 INFO L471 AbstractCegarLoop]: Abstraction has 45220 states and 56896 transitions. [2024-11-14 02:43:06,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.6) internal successors, (96), 10 states have internal predecessors, (96), 0 states have call successors, (0), 0 states 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 02:43:06,122 INFO L276 IsEmpty]: Start isEmpty. Operand 45220 states and 56896 transitions. [2024-11-14 02:43:06,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-14 02:43:06,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:43:06,129 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:43:06,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-14 02:43:06,130 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:43:06,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:43:06,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1709019992, now seen corresponding path program 1 times [2024-11-14 02:43:06,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:43:06,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677629468] [2024-11-14 02:43:06,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:43:06,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:43:06,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:43:06,258 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 02:43:06,258 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:43:06,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677629468] [2024-11-14 02:43:06,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677629468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:43:06,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:43:06,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:43:06,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955535285] [2024-11-14 02:43:06,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:43:06,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:43:06,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:43:06,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:43:06,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:43:06,261 INFO L87 Difference]: Start difference. First operand 45220 states and 56896 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states 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 02:43:06,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:43:06,673 INFO L93 Difference]: Finished difference Result 69180 states and 87189 transitions. [2024-11-14 02:43:06,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:43:06,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2024-11-14 02:43:06,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:43:06,741 INFO L225 Difference]: With dead ends: 69180 [2024-11-14 02:43:06,741 INFO L226 Difference]: Without dead ends: 47886 [2024-11-14 02:43:06,760 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 02:43:06,760 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 273 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:43:06,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 402 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:43:06,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47886 states. [2024-11-14 02:43:07,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47886 to 43584. [2024-11-14 02:43:07,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43584 states, 43583 states have (on average 1.2539751738063005) internal successors, (54652), 43583 states have internal predecessors, (54652), 0 states have call successors, (0), 0 states 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 02:43:07,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43584 states to 43584 states and 54652 transitions. [2024-11-14 02:43:07,297 INFO L78 Accepts]: Start accepts. Automaton has 43584 states and 54652 transitions. Word has length 97 [2024-11-14 02:43:07,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:43:07,297 INFO L471 AbstractCegarLoop]: Abstraction has 43584 states and 54652 transitions. [2024-11-14 02:43:07,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states 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 02:43:07,297 INFO L276 IsEmpty]: Start isEmpty. Operand 43584 states and 54652 transitions. [2024-11-14 02:43:07,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-14 02:43:07,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:43:07,300 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:43:07,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-14 02:43:07,301 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:43:07,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:43:07,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1010560873, now seen corresponding path program 1 times [2024-11-14 02:43:07,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:43:07,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847053181] [2024-11-14 02:43:07,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:43:07,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:43:07,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:43:07,995 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 02:43:07,995 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:43:07,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847053181] [2024-11-14 02:43:07,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847053181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:43:07,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:43:07,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-14 02:43:07,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716018027] [2024-11-14 02:43:07,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:43:07,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 02:43:07,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:43:07,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 02:43:07,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-14 02:43:07,998 INFO L87 Difference]: Start difference. First operand 43584 states and 54652 transitions. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states 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 02:43:08,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:43:08,581 INFO L93 Difference]: Finished difference Result 65773 states and 83172 transitions. [2024-11-14 02:43:08,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 02:43:08,582 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2024-11-14 02:43:08,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:43:08,645 INFO L225 Difference]: With dead ends: 65773 [2024-11-14 02:43:08,645 INFO L226 Difference]: Without dead ends: 65771 [2024-11-14 02:43:08,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2024-11-14 02:43:08,659 INFO L432 NwaCegarLoop]: 367 mSDtfsCounter, 1106 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1106 SdHoareTripleChecker+Valid, 2425 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 02:43:08,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1106 Valid, 2425 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 02:43:08,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65771 states. [2024-11-14 02:43:09,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65771 to 44544. [2024-11-14 02:43:09,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44544 states, 44543 states have (on average 1.2537547987338078) internal successors, (55846), 44543 states have internal predecessors, (55846), 0 states have call successors, (0), 0 states 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 02:43:09,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44544 states to 44544 states and 55846 transitions. [2024-11-14 02:43:09,294 INFO L78 Accepts]: Start accepts. Automaton has 44544 states and 55846 transitions. Word has length 97 [2024-11-14 02:43:09,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:43:09,294 INFO L471 AbstractCegarLoop]: Abstraction has 44544 states and 55846 transitions. [2024-11-14 02:43:09,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states 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 02:43:09,295 INFO L276 IsEmpty]: Start isEmpty. Operand 44544 states and 55846 transitions. [2024-11-14 02:43:09,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-14 02:43:09,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:43:09,299 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:43:09,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-14 02:43:09,300 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:43:09,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:43:09,301 INFO L85 PathProgramCache]: Analyzing trace with hash -288051115, now seen corresponding path program 1 times [2024-11-14 02:43:09,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:43:09,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343269383] [2024-11-14 02:43:09,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:43:09,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:43:09,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:43:10,969 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:43:10,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:43:10,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343269383] [2024-11-14 02:43:10,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343269383] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:43:10,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [129436137] [2024-11-14 02:43:10,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:43:10,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:43:10,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561bf766-056f-442d-920a-5b0e85d38d9b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:43:10,972 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561bf766-056f-442d-920a-5b0e85d38d9b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:43:10,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561bf766-056f-442d-920a-5b0e85d38d9b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 02:43:11,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:43:11,569 INFO L255 TraceCheckSpWp]: Trace formula consists of 839 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-14 02:43:11,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:43:12,360 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-14 02:43:12,360 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 02:43:12,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [129436137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:43:12,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 02:43:12,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [18] total 24 [2024-11-14 02:43:12,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025395164] [2024-11-14 02:43:12,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:43:12,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 02:43:12,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:43:12,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 02:43:12,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2024-11-14 02:43:12,363 INFO L87 Difference]: Start difference. First operand 44544 states and 55846 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states 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 02:43:13,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:43:13,107 INFO L93 Difference]: Finished difference Result 76516 states and 95855 transitions. [2024-11-14 02:43:13,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 02:43:13,108 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-14 02:43:13,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:43:13,161 INFO L225 Difference]: With dead ends: 76516 [2024-11-14 02:43:13,161 INFO L226 Difference]: Without dead ends: 55016 [2024-11-14 02:43:13,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=95, Invalid=661, Unknown=0, NotChecked=0, Total=756 [2024-11-14 02:43:13,179 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 773 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 02:43:13,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 793 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 02:43:13,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55016 states. [2024-11-14 02:43:13,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55016 to 44584. [2024-11-14 02:43:13,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44584 states, 44583 states have (on average 1.2535271291747976) internal successors, (55886), 44583 states have internal predecessors, (55886), 0 states have call successors, (0), 0 states 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 02:43:13,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44584 states to 44584 states and 55886 transitions. [2024-11-14 02:43:13,721 INFO L78 Accepts]: Start accepts. Automaton has 44584 states and 55886 transitions. Word has length 105 [2024-11-14 02:43:13,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:43:13,721 INFO L471 AbstractCegarLoop]: Abstraction has 44584 states and 55886 transitions. [2024-11-14 02:43:13,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states 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 02:43:13,721 INFO L276 IsEmpty]: Start isEmpty. Operand 44584 states and 55886 transitions. [2024-11-14 02:43:13,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-14 02:43:13,728 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:43:13,728 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:43:13,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561bf766-056f-442d-920a-5b0e85d38d9b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 02:43:13,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561bf766-056f-442d-920a-5b0e85d38d9b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-14 02:43:13,929 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:43:13,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:43:13,929 INFO L85 PathProgramCache]: Analyzing trace with hash -8859686, now seen corresponding path program 1 times [2024-11-14 02:43:13,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:43:13,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474183887] [2024-11-14 02:43:13,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:43:13,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:43:14,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:43:15,564 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:43:15,564 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:43:15,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474183887] [2024-11-14 02:43:15,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474183887] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:43:15,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376236783] [2024-11-14 02:43:15,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:43:15,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:43:15,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561bf766-056f-442d-920a-5b0e85d38d9b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:43:15,567 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561bf766-056f-442d-920a-5b0e85d38d9b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:43:15,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561bf766-056f-442d-920a-5b0e85d38d9b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 02:43:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:43:16,096 INFO L255 TraceCheckSpWp]: Trace formula consists of 839 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-14 02:43:16,105 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:43:16,790 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-14 02:43:16,791 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 02:43:16,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1376236783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:43:16,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 02:43:16,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [18] total 24 [2024-11-14 02:43:16,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131818455] [2024-11-14 02:43:16,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:43:16,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 02:43:16,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:43:16,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 02:43:16,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=478, Unknown=0, NotChecked=0, Total=552 [2024-11-14 02:43:16,792 INFO L87 Difference]: Start difference. First operand 44584 states and 55886 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states 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 02:43:17,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:43:17,424 INFO L93 Difference]: Finished difference Result 76247 states and 95547 transitions. [2024-11-14 02:43:17,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 02:43:17,424 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-14 02:43:17,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:43:17,477 INFO L225 Difference]: With dead ends: 76247 [2024-11-14 02:43:17,477 INFO L226 Difference]: Without dead ends: 55218 [2024-11-14 02:43:17,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=100, Invalid=656, Unknown=0, NotChecked=0, Total=756 [2024-11-14 02:43:17,495 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 827 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 02:43:17,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 889 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 02:43:17,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55218 states. [2024-11-14 02:43:17,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55218 to 44420. [2024-11-14 02:43:17,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44420 states, 44419 states have (on average 1.2536302032913844) internal successors, (55685), 44419 states have internal predecessors, (55685), 0 states have call successors, (0), 0 states 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 02:43:17,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44420 states to 44420 states and 55685 transitions. [2024-11-14 02:43:17,977 INFO L78 Accepts]: Start accepts. Automaton has 44420 states and 55685 transitions. Word has length 105 [2024-11-14 02:43:17,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:43:17,977 INFO L471 AbstractCegarLoop]: Abstraction has 44420 states and 55685 transitions. [2024-11-14 02:43:17,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states 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 02:43:17,977 INFO L276 IsEmpty]: Start isEmpty. Operand 44420 states and 55685 transitions. [2024-11-14 02:43:17,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-14 02:43:17,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:43:17,981 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:43:17,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561bf766-056f-442d-920a-5b0e85d38d9b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-14 02:43:18,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561bf766-056f-442d-920a-5b0e85d38d9b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-14 02:43:18,182 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:43:18,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:43:18,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1158984411, now seen corresponding path program 1 times [2024-11-14 02:43:18,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:43:18,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357142924] [2024-11-14 02:43:18,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:43:18,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:43:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:43:18,551 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-14 02:43:18,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:43:18,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357142924] [2024-11-14 02:43:18,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357142924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:43:18,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:43:18,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 02:43:18,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921882441] [2024-11-14 02:43:18,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:43:18,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 02:43:18,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:43:18,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 02:43:18,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-14 02:43:18,553 INFO L87 Difference]: Start difference. First operand 44420 states and 55685 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states 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 02:43:19,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:43:19,297 INFO L93 Difference]: Finished difference Result 92396 states and 115460 transitions. [2024-11-14 02:43:19,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 02:43:19,298 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-14 02:43:19,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:43:19,341 INFO L225 Difference]: With dead ends: 92396 [2024-11-14 02:43:19,341 INFO L226 Difference]: Without dead ends: 50486 [2024-11-14 02:43:19,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-14 02:43:19,361 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 833 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 02:43:19,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [833 Valid, 819 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 02:43:19,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50486 states. [2024-11-14 02:43:19,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50486 to 44239. [2024-11-14 02:43:20,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44239 states, 44238 states have (on average 1.2539445725394458) internal successors, (55472), 44238 states have internal predecessors, (55472), 0 states have call successors, (0), 0 states 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 02:43:20,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44239 states to 44239 states and 55472 transitions. [2024-11-14 02:43:20,067 INFO L78 Accepts]: Start accepts. Automaton has 44239 states and 55472 transitions. Word has length 105 [2024-11-14 02:43:20,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:43:20,067 INFO L471 AbstractCegarLoop]: Abstraction has 44239 states and 55472 transitions. [2024-11-14 02:43:20,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states 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 02:43:20,067 INFO L276 IsEmpty]: Start isEmpty. Operand 44239 states and 55472 transitions. [2024-11-14 02:43:20,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-14 02:43:20,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:43:20,071 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:43:20,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-14 02:43:20,071 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-14 02:43:20,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:43:20,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1035761953, now seen corresponding path program 1 times [2024-11-14 02:43:20,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:43:20,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628705520] [2024-11-14 02:43:20,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:43:20,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:43:20,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:43:21,689 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:43:21,690 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:43:21,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628705520] [2024-11-14 02:43:21,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628705520] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:43:21,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680672530] [2024-11-14 02:43:21,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:43:21,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:43:21,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561bf766-056f-442d-920a-5b0e85d38d9b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:43:21,693 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561bf766-056f-442d-920a-5b0e85d38d9b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:43:21,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561bf766-056f-442d-920a-5b0e85d38d9b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 02:43:22,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:43:22,267 INFO L255 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-11-14 02:43:22,274 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:43:26,875 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:43:26,875 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:43:49,463 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:43:49,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680672530] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:43:49,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1163624913] [2024-11-14 02:43:49,484 INFO L159 IcfgInterpreter]: Started Sifa with 94 locations of interest [2024-11-14 02:43:49,484 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:43:49,487 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:43:49,492 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:43:49,492 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs