./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c -s /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/bin/utaipan --witnessprinter.witness.filename witness.graphml --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 c6d41d2a2a28e240d9196f063199b00c22e981e9 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-03 12:37:16,974 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 12:37:16,976 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 12:37:17,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 12:37:17,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 12:37:17,050 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 12:37:17,053 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 12:37:17,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 12:37:17,057 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 12:37:17,058 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 12:37:17,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 12:37:17,061 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 12:37:17,061 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 12:37:17,063 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 12:37:17,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 12:37:17,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 12:37:17,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 12:37:17,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 12:37:17,070 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 12:37:17,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 12:37:17,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 12:37:17,076 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 12:37:17,077 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 12:37:17,078 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 12:37:17,082 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 12:37:17,083 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 12:37:17,083 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 12:37:17,084 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 12:37:17,085 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 12:37:17,086 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 12:37:17,087 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 12:37:17,088 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 12:37:17,089 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 12:37:17,090 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 12:37:17,091 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 12:37:17,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 12:37:17,092 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 12:37:17,092 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 12:37:17,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 12:37:17,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 12:37:17,095 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 12:37:17,095 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-03 12:37:17,120 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 12:37:17,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 12:37:17,121 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 12:37:17,121 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-03 12:37:17,122 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-03 12:37:17,122 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-03 12:37:17,122 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-03 12:37:17,122 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-03 12:37:17,122 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-03 12:37:17,123 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-03 12:37:17,123 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-03 12:37:17,123 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-03 12:37:17,123 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-03 12:37:17,124 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-03 12:37:17,124 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-03 12:37:17,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 12:37:17,125 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 12:37:17,125 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 12:37:17,125 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 12:37:17,125 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 12:37:17,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 12:37:17,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 12:37:17,126 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 12:37:17,126 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-03 12:37:17,127 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 12:37:17,127 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 12:37:17,127 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 12:37:17,127 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 12:37:17,127 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 12:37:17,128 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 12:37:17,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:37:17,128 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 12:37:17,128 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 12:37:17,129 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 12:37:17,129 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-03 12:37:17,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 12:37:17,129 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 12:37:17,129 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 12:37:17,130 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-03 12:37:17,130 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6d41d2a2a28e240d9196f063199b00c22e981e9 [2020-12-03 12:37:17,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 12:37:17,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 12:37:17,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 12:37:17,476 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 12:37:17,477 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 12:37:17,478 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/bin/utaipan/../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c [2020-12-03 12:37:17,538 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/bin/utaipan/data/9f2dc3830/d105a2188f524fa4b1b3a9c9f9e3521f/FLAG1539e93e9 [2020-12-03 12:37:18,072 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 12:37:18,073 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c [2020-12-03 12:37:18,083 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/bin/utaipan/data/9f2dc3830/d105a2188f524fa4b1b3a9c9f9e3521f/FLAG1539e93e9 [2020-12-03 12:37:18,411 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/bin/utaipan/data/9f2dc3830/d105a2188f524fa4b1b3a9c9f9e3521f [2020-12-03 12:37:18,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 12:37:18,415 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 12:37:18,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 12:37:18,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 12:37:18,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 12:37:18,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:37:18" (1/1) ... [2020-12-03 12:37:18,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15adaf73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:37:18, skipping insertion in model container [2020-12-03 12:37:18,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:37:18" (1/1) ... [2020-12-03 12:37:18,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 12:37:18,482 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 12:37:18,749 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[1066,1079] [2020-12-03 12:37:18,753 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[1266,1279] [2020-12-03 12:37:18,762 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[1613,1626] [2020-12-03 12:37:18,771 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[1813,1826] [2020-12-03 12:37:18,775 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[2024,2037] [2020-12-03 12:37:18,779 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[2224,2237] [2020-12-03 12:37:18,785 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[2629,2642] [2020-12-03 12:37:18,788 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[2829,2842] [2020-12-03 12:37:18,790 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[3040,3053] [2020-12-03 12:37:18,793 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[3243,3256] [2020-12-03 12:37:18,801 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[3583,3596] [2020-12-03 12:37:18,805 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[3786,3799] [2020-12-03 12:37:18,808 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[4000,4013] [2020-12-03 12:37:18,811 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[4203,4216] [2020-12-03 12:37:18,817 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[4547,4560] [2020-12-03 12:37:18,819 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[4750,4763] [2020-12-03 12:37:18,837 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:37:18,845 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 12:37:18,859 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[1066,1079] [2020-12-03 12:37:18,860 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[1266,1279] [2020-12-03 12:37:18,862 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[1613,1626] [2020-12-03 12:37:18,863 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[1813,1826] [2020-12-03 12:37:18,864 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[2024,2037] [2020-12-03 12:37:18,865 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[2224,2237] [2020-12-03 12:37:18,867 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[2629,2642] [2020-12-03 12:37:18,869 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[2829,2842] [2020-12-03 12:37:18,870 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[3040,3053] [2020-12-03 12:37:18,871 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[3243,3256] [2020-12-03 12:37:18,873 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[3583,3596] [2020-12-03 12:37:18,875 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[3786,3799] [2020-12-03 12:37:18,876 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[4000,4013] [2020-12-03 12:37:18,877 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[4203,4216] [2020-12-03 12:37:18,879 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[4547,4560] [2020-12-03 12:37:18,881 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[4750,4763] [2020-12-03 12:37:18,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:37:18,898 INFO L208 MainTranslator]: Completed translation [2020-12-03 12:37:18,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:37:18 WrapperNode [2020-12-03 12:37:18,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 12:37:18,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 12:37:18,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 12:37:18,900 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 12:37:18,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:37:18" (1/1) ... [2020-12-03 12:37:18,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:37:18" (1/1) ... [2020-12-03 12:37:18,942 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 12:37:18,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 12:37:18,943 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 12:37:18,943 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 12:37:18,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:37:18" (1/1) ... [2020-12-03 12:37:18,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:37:18" (1/1) ... [2020-12-03 12:37:18,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:37:18" (1/1) ... [2020-12-03 12:37:18,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:37:18" (1/1) ... [2020-12-03 12:37:18,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:37:18" (1/1) ... [2020-12-03 12:37:18,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:37:18" (1/1) ... [2020-12-03 12:37:18,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:37:18" (1/1) ... [2020-12-03 12:37:18,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 12:37:18,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 12:37:18,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 12:37:18,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 12:37:18,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:37:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:37:19,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-03 12:37:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 12:37:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 12:37:19,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 12:37:19,509 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 12:37:19,510 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-03 12:37:19,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:37:19 BoogieIcfgContainer [2020-12-03 12:37:19,516 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 12:37:19,536 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 12:37:19,536 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 12:37:19,539 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 12:37:19,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 12:37:18" (1/3) ... [2020-12-03 12:37:19,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@393e7083 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:37:19, skipping insertion in model container [2020-12-03 12:37:19,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:37:18" (2/3) ... [2020-12-03 12:37:19,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@393e7083 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:37:19, skipping insertion in model container [2020-12-03 12:37:19,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:37:19" (3/3) ... [2020-12-03 12:37:19,541 INFO L111 eAbstractionObserver]: Analyzing ICFG SpamAssassin-loop.i.v+cfa-reducer.c [2020-12-03 12:37:19,553 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 12:37:19,556 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-12-03 12:37:19,567 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-12-03 12:37:19,589 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 12:37:19,589 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-03 12:37:19,589 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 12:37:19,589 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 12:37:19,589 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 12:37:19,589 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 12:37:19,590 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 12:37:19,590 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 12:37:19,606 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2020-12-03 12:37:19,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-03 12:37:19,611 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:37:19,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:37:19,613 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:37:19,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:37:19,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1750713386, now seen corresponding path program 1 times [2020-12-03 12:37:19,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:37:19,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129935300] [2020-12-03 12:37:19,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:37:19,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:37:19,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:37:19,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129935300] [2020-12-03 12:37:19,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:37:19,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:37:19,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200815408] [2020-12-03 12:37:19,854 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:37:19,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:37:19,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:37:19,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:37:19,870 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 3 states. [2020-12-03 12:37:19,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:37:19,920 INFO L93 Difference]: Finished difference Result 79 states and 106 transitions. [2020-12-03 12:37:19,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:37:19,922 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-03 12:37:19,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:37:19,941 INFO L225 Difference]: With dead ends: 79 [2020-12-03 12:37:19,941 INFO L226 Difference]: Without dead ends: 71 [2020-12-03 12:37:19,944 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:37:19,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-12-03 12:37:19,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 54. [2020-12-03 12:37:19,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-12-03 12:37:20,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2020-12-03 12:37:20,002 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 8 [2020-12-03 12:37:20,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:37:20,002 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2020-12-03 12:37:20,002 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:37:20,003 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2020-12-03 12:37:20,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-03 12:37:20,004 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:37:20,004 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:37:20,005 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-03 12:37:20,006 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:37:20,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:37:20,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1562463944, now seen corresponding path program 1 times [2020-12-03 12:37:20,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:37:20,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403494579] [2020-12-03 12:37:20,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:37:20,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:37:20,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:37:20,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403494579] [2020-12-03 12:37:20,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:37:20,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 12:37:20,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964015747] [2020-12-03 12:37:20,138 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:37:20,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:37:20,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:37:20,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:37:20,139 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand 4 states. [2020-12-03 12:37:20,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:37:20,210 INFO L93 Difference]: Finished difference Result 72 states and 79 transitions. [2020-12-03 12:37:20,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 12:37:20,210 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-03 12:37:20,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:37:20,212 INFO L225 Difference]: With dead ends: 72 [2020-12-03 12:37:20,212 INFO L226 Difference]: Without dead ends: 70 [2020-12-03 12:37:20,213 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:37:20,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-12-03 12:37:20,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 52. [2020-12-03 12:37:20,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-03 12:37:20,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2020-12-03 12:37:20,221 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 9 [2020-12-03 12:37:20,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:37:20,221 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2020-12-03 12:37:20,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:37:20,221 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2020-12-03 12:37:20,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-03 12:37:20,222 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:37:20,222 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:37:20,222 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-03 12:37:20,222 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:37:20,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:37:20,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1566110362, now seen corresponding path program 1 times [2020-12-03 12:37:20,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:37:20,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321967571] [2020-12-03 12:37:20,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:37:20,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:37:20,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:37:20,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321967571] [2020-12-03 12:37:20,314 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:37:20,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 12:37:20,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556309062] [2020-12-03 12:37:20,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:37:20,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:37:20,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:37:20,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:37:20,316 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand 4 states. [2020-12-03 12:37:20,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:37:20,459 INFO L93 Difference]: Finished difference Result 142 states and 157 transitions. [2020-12-03 12:37:20,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-03 12:37:20,462 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-03 12:37:20,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:37:20,463 INFO L225 Difference]: With dead ends: 142 [2020-12-03 12:37:20,463 INFO L226 Difference]: Without dead ends: 92 [2020-12-03 12:37:20,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:37:20,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-12-03 12:37:20,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 51. [2020-12-03 12:37:20,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-12-03 12:37:20,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2020-12-03 12:37:20,473 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 9 [2020-12-03 12:37:20,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:37:20,473 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2020-12-03 12:37:20,473 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:37:20,474 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2020-12-03 12:37:20,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-03 12:37:20,477 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:37:20,477 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:37:20,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-03 12:37:20,478 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:37:20,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:37:20,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1304785047, now seen corresponding path program 1 times [2020-12-03 12:37:20,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:37:20,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623382805] [2020-12-03 12:37:20,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:37:20,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:37:20,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:37:20,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623382805] [2020-12-03 12:37:20,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:37:20,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 12:37:20,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376291241] [2020-12-03 12:37:20,579 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:37:20,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:37:20,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:37:20,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:37:20,581 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand 4 states. [2020-12-03 12:37:20,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:37:20,680 INFO L93 Difference]: Finished difference Result 91 states and 99 transitions. [2020-12-03 12:37:20,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 12:37:20,683 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-03 12:37:20,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:37:20,684 INFO L225 Difference]: With dead ends: 91 [2020-12-03 12:37:20,684 INFO L226 Difference]: Without dead ends: 89 [2020-12-03 12:37:20,685 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:37:20,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-12-03 12:37:20,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 49. [2020-12-03 12:37:20,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-12-03 12:37:20,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2020-12-03 12:37:20,701 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 10 [2020-12-03 12:37:20,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:37:20,701 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2020-12-03 12:37:20,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:37:20,701 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2020-12-03 12:37:20,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-03 12:37:20,702 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:37:20,702 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:37:20,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-03 12:37:20,703 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:37:20,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:37:20,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1710544404, now seen corresponding path program 1 times [2020-12-03 12:37:20,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:37:20,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630846919] [2020-12-03 12:37:20,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:37:20,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:37:20,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:37:20,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630846919] [2020-12-03 12:37:20,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:37:20,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 12:37:20,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330332074] [2020-12-03 12:37:20,788 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:37:20,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:37:20,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:37:20,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:37:20,790 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand 4 states. [2020-12-03 12:37:20,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:37:20,878 INFO L93 Difference]: Finished difference Result 68 states and 76 transitions. [2020-12-03 12:37:20,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-03 12:37:20,879 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-03 12:37:20,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:37:20,880 INFO L225 Difference]: With dead ends: 68 [2020-12-03 12:37:20,880 INFO L226 Difference]: Without dead ends: 66 [2020-12-03 12:37:20,881 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:37:20,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-12-03 12:37:20,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 47. [2020-12-03 12:37:20,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-12-03 12:37:20,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2020-12-03 12:37:20,892 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 11 [2020-12-03 12:37:20,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:37:20,892 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2020-12-03 12:37:20,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:37:20,892 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2020-12-03 12:37:20,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-03 12:37:20,893 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:37:20,893 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:37:20,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-03 12:37:20,893 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:37:20,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:37:20,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1793634881, now seen corresponding path program 1 times [2020-12-03 12:37:20,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:37:20,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136598955] [2020-12-03 12:37:20,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:37:20,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:37:20,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:37:20,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136598955] [2020-12-03 12:37:20,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:37:20,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-03 12:37:20,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517335024] [2020-12-03 12:37:20,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:37:20,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:37:20,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:37:20,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:37:20,978 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand 5 states. [2020-12-03 12:37:21,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:37:21,099 INFO L93 Difference]: Finished difference Result 86 states and 94 transitions. [2020-12-03 12:37:21,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-03 12:37:21,100 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-12-03 12:37:21,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:37:21,101 INFO L225 Difference]: With dead ends: 86 [2020-12-03 12:37:21,101 INFO L226 Difference]: Without dead ends: 84 [2020-12-03 12:37:21,102 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-03 12:37:21,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-12-03 12:37:21,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 45. [2020-12-03 12:37:21,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-12-03 12:37:21,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2020-12-03 12:37:21,124 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 11 [2020-12-03 12:37:21,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:37:21,124 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2020-12-03 12:37:21,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:37:21,125 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2020-12-03 12:37:21,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-03 12:37:21,127 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:37:21,127 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:37:21,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-03 12:37:21,128 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:37:21,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:37:21,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1487264860, now seen corresponding path program 1 times [2020-12-03 12:37:21,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:37:21,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54372502] [2020-12-03 12:37:21,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:37:21,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:37:21,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:37:21,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54372502] [2020-12-03 12:37:21,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:37:21,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-03 12:37:21,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777085617] [2020-12-03 12:37:21,211 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:37:21,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:37:21,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:37:21,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:37:21,212 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 5 states. [2020-12-03 12:37:21,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:37:21,337 INFO L93 Difference]: Finished difference Result 74 states and 85 transitions. [2020-12-03 12:37:21,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-03 12:37:21,338 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-03 12:37:21,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:37:21,341 INFO L225 Difference]: With dead ends: 74 [2020-12-03 12:37:21,341 INFO L226 Difference]: Without dead ends: 72 [2020-12-03 12:37:21,342 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-03 12:37:21,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-12-03 12:37:21,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 43. [2020-12-03 12:37:21,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-12-03 12:37:21,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2020-12-03 12:37:21,352 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 12 [2020-12-03 12:37:21,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:37:21,352 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2020-12-03 12:37:21,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:37:21,352 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2020-12-03 12:37:21,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-03 12:37:21,354 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:37:21,354 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:37:21,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-03 12:37:21,355 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:37:21,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:37:21,355 INFO L82 PathProgramCache]: Analyzing trace with hash -231889442, now seen corresponding path program 1 times [2020-12-03 12:37:21,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:37:21,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768816876] [2020-12-03 12:37:21,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:37:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:37:21,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:37:21,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768816876] [2020-12-03 12:37:21,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:37:21,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 12:37:21,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094893050] [2020-12-03 12:37:21,407 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:37:21,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:37:21,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:37:21,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:37:21,408 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand 4 states. [2020-12-03 12:37:21,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:37:21,484 INFO L93 Difference]: Finished difference Result 82 states and 90 transitions. [2020-12-03 12:37:21,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 12:37:21,485 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-12-03 12:37:21,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:37:21,486 INFO L225 Difference]: With dead ends: 82 [2020-12-03 12:37:21,486 INFO L226 Difference]: Without dead ends: 80 [2020-12-03 12:37:21,487 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:37:21,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-12-03 12:37:21,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 41. [2020-12-03 12:37:21,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-12-03 12:37:21,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2020-12-03 12:37:21,492 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 12 [2020-12-03 12:37:21,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:37:21,493 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2020-12-03 12:37:21,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:37:21,493 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2020-12-03 12:37:21,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-03 12:37:21,494 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:37:21,494 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:37:21,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-03 12:37:21,494 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:37:21,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:37:21,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1139433715, now seen corresponding path program 1 times [2020-12-03 12:37:21,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:37:21,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661644312] [2020-12-03 12:37:21,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:37:21,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:37:21,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:37:21,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661644312] [2020-12-03 12:37:21,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:37:21,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-03 12:37:21,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631668068] [2020-12-03 12:37:21,538 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:37:21,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:37:21,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:37:21,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:37:21,539 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 5 states. [2020-12-03 12:37:21,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:37:21,645 INFO L93 Difference]: Finished difference Result 56 states and 64 transitions. [2020-12-03 12:37:21,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-03 12:37:21,646 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-03 12:37:21,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:37:21,648 INFO L225 Difference]: With dead ends: 56 [2020-12-03 12:37:21,648 INFO L226 Difference]: Without dead ends: 54 [2020-12-03 12:37:21,649 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-03 12:37:21,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-12-03 12:37:21,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 39. [2020-12-03 12:37:21,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-12-03 12:37:21,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2020-12-03 12:37:21,664 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 13 [2020-12-03 12:37:21,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:37:21,665 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2020-12-03 12:37:21,665 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:37:21,666 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2020-12-03 12:37:21,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-03 12:37:21,666 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:37:21,666 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:37:21,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-03 12:37:21,667 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:37:21,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:37:21,668 INFO L82 PathProgramCache]: Analyzing trace with hash 962710923, now seen corresponding path program 1 times [2020-12-03 12:37:21,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:37:21,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172488267] [2020-12-03 12:37:21,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:37:21,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:37:21,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:37:21,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172488267] [2020-12-03 12:37:21,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:37:21,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 12:37:21,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122760224] [2020-12-03 12:37:21,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:37:21,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:37:21,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:37:21,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:37:21,743 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand 4 states. [2020-12-03 12:37:21,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:37:21,796 INFO L93 Difference]: Finished difference Result 56 states and 64 transitions. [2020-12-03 12:37:21,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 12:37:21,796 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-12-03 12:37:21,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:37:21,797 INFO L225 Difference]: With dead ends: 56 [2020-12-03 12:37:21,798 INFO L226 Difference]: Without dead ends: 54 [2020-12-03 12:37:21,798 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:37:21,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-12-03 12:37:21,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 37. [2020-12-03 12:37:21,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-12-03 12:37:21,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2020-12-03 12:37:21,802 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 14 [2020-12-03 12:37:21,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:37:21,803 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2020-12-03 12:37:21,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:37:21,803 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2020-12-03 12:37:21,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-03 12:37:21,804 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:37:21,804 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:37:21,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-03 12:37:21,805 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:37:21,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:37:21,805 INFO L82 PathProgramCache]: Analyzing trace with hash -220728326, now seen corresponding path program 1 times [2020-12-03 12:37:21,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:37:21,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086058518] [2020-12-03 12:37:21,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:37:21,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:37:21,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:37:21,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086058518] [2020-12-03 12:37:21,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:37:21,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 12:37:21,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391308395] [2020-12-03 12:37:21,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:37:21,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:37:21,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:37:21,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:37:21,860 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 4 states. [2020-12-03 12:37:21,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:37:21,939 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions. [2020-12-03 12:37:21,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-03 12:37:21,939 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-12-03 12:37:21,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:37:21,940 INFO L225 Difference]: With dead ends: 64 [2020-12-03 12:37:21,941 INFO L226 Difference]: Without dead ends: 62 [2020-12-03 12:37:21,948 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:37:21,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-12-03 12:37:21,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 35. [2020-12-03 12:37:21,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-12-03 12:37:21,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2020-12-03 12:37:21,956 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 15 [2020-12-03 12:37:21,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:37:21,956 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2020-12-03 12:37:21,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:37:21,956 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2020-12-03 12:37:21,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-03 12:37:21,958 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:37:21,959 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:37:21,959 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-03 12:37:21,959 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:37:21,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:37:21,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1747360626, now seen corresponding path program 1 times [2020-12-03 12:37:21,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:37:21,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521822544] [2020-12-03 12:37:21,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:37:21,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:37:22,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:37:22,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521822544] [2020-12-03 12:37:22,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:37:22,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-03 12:37:22,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642287282] [2020-12-03 12:37:22,022 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:37:22,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:37:22,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:37:22,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:37:22,024 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 5 states. [2020-12-03 12:37:22,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:37:22,157 INFO L93 Difference]: Finished difference Result 69 states and 80 transitions. [2020-12-03 12:37:22,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-03 12:37:22,158 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-12-03 12:37:22,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:37:22,159 INFO L225 Difference]: With dead ends: 69 [2020-12-03 12:37:22,159 INFO L226 Difference]: Without dead ends: 67 [2020-12-03 12:37:22,159 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-03 12:37:22,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-12-03 12:37:22,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 33. [2020-12-03 12:37:22,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-12-03 12:37:22,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2020-12-03 12:37:22,171 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 16 [2020-12-03 12:37:22,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:37:22,176 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2020-12-03 12:37:22,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:37:22,177 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-12-03 12:37:22,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-03 12:37:22,179 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:37:22,179 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:37:22,179 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-03 12:37:22,180 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:37:22,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:37:22,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1666391295, now seen corresponding path program 1 times [2020-12-03 12:37:22,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:37:22,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327996703] [2020-12-03 12:37:22,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:37:22,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:37:22,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:37:22,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327996703] [2020-12-03 12:37:22,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:37:22,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-03 12:37:22,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495635947] [2020-12-03 12:37:22,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-03 12:37:22,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:37:22,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-03 12:37:22,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-03 12:37:22,262 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 6 states. [2020-12-03 12:37:22,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:37:22,403 INFO L93 Difference]: Finished difference Result 57 states and 68 transitions. [2020-12-03 12:37:22,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-03 12:37:22,404 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-12-03 12:37:22,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:37:22,406 INFO L225 Difference]: With dead ends: 57 [2020-12-03 12:37:22,406 INFO L226 Difference]: Without dead ends: 55 [2020-12-03 12:37:22,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-12-03 12:37:22,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-12-03 12:37:22,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 31. [2020-12-03 12:37:22,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-12-03 12:37:22,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2020-12-03 12:37:22,412 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 17 [2020-12-03 12:37:22,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:37:22,413 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2020-12-03 12:37:22,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-03 12:37:22,413 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2020-12-03 12:37:22,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-03 12:37:22,417 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:37:22,417 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:37:22,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-03 12:37:22,418 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:37:22,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:37:22,419 INFO L82 PathProgramCache]: Analyzing trace with hash -118518439, now seen corresponding path program 1 times [2020-12-03 12:37:22,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:37:22,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034383789] [2020-12-03 12:37:22,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:37:22,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:37:22,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:37:22,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034383789] [2020-12-03 12:37:22,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:37:22,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-03 12:37:22,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754974745] [2020-12-03 12:37:22,479 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:37:22,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:37:22,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:37:22,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:37:22,480 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 5 states. [2020-12-03 12:37:22,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:37:22,641 INFO L93 Difference]: Finished difference Result 82 states and 96 transitions. [2020-12-03 12:37:22,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-03 12:37:22,641 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-12-03 12:37:22,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:37:22,642 INFO L225 Difference]: With dead ends: 82 [2020-12-03 12:37:22,643 INFO L226 Difference]: Without dead ends: 80 [2020-12-03 12:37:22,644 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-03 12:37:22,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-12-03 12:37:22,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 29. [2020-12-03 12:37:22,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-03 12:37:22,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2020-12-03 12:37:22,649 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 18 [2020-12-03 12:37:22,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:37:22,649 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2020-12-03 12:37:22,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:37:22,650 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2020-12-03 12:37:22,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-03 12:37:22,650 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:37:22,651 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:37:22,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-03 12:37:22,651 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:37:22,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:37:22,652 INFO L82 PathProgramCache]: Analyzing trace with hash 620899848, now seen corresponding path program 1 times [2020-12-03 12:37:22,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:37:22,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643855938] [2020-12-03 12:37:22,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:37:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:37:22,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:37:22,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643855938] [2020-12-03 12:37:22,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:37:22,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-03 12:37:22,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728731967] [2020-12-03 12:37:22,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-03 12:37:22,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:37:22,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-03 12:37:22,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-03 12:37:22,723 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 6 states. [2020-12-03 12:37:22,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:37:22,899 INFO L93 Difference]: Finished difference Result 55 states and 66 transitions. [2020-12-03 12:37:22,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-03 12:37:22,900 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-12-03 12:37:22,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:37:22,901 INFO L225 Difference]: With dead ends: 55 [2020-12-03 12:37:22,901 INFO L226 Difference]: Without dead ends: 53 [2020-12-03 12:37:22,904 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-12-03 12:37:22,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-12-03 12:37:22,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 27. [2020-12-03 12:37:22,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-12-03 12:37:22,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2020-12-03 12:37:22,910 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 19 [2020-12-03 12:37:22,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:37:22,911 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2020-12-03 12:37:22,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-03 12:37:22,911 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2020-12-03 12:37:22,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-03 12:37:22,912 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:37:22,913 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:37:22,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-03 12:37:22,914 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:37:22,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:37:22,915 INFO L82 PathProgramCache]: Analyzing trace with hash 2068030272, now seen corresponding path program 1 times [2020-12-03 12:37:22,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:37:22,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750573631] [2020-12-03 12:37:22,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:37:22,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:37:22,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:37:22,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750573631] [2020-12-03 12:37:22,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:37:22,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-03 12:37:22,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417238986] [2020-12-03 12:37:22,989 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-03 12:37:22,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:37:22,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-03 12:37:22,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-03 12:37:22,992 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand 6 states. [2020-12-03 12:37:23,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:37:23,199 INFO L93 Difference]: Finished difference Result 120 states and 142 transitions. [2020-12-03 12:37:23,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-03 12:37:23,199 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-12-03 12:37:23,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:37:23,201 INFO L225 Difference]: With dead ends: 120 [2020-12-03 12:37:23,202 INFO L226 Difference]: Without dead ends: 0 [2020-12-03 12:37:23,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-12-03 12:37:23,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-03 12:37:23,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-03 12:37:23,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-03 12:37:23,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-03 12:37:23,204 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-12-03 12:37:23,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:37:23,204 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-03 12:37:23,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-03 12:37:23,204 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-03 12:37:23,205 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-03 12:37:23,205 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-03 12:37:23,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-03 12:37:23,377 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 75 [2020-12-03 12:37:23,563 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 98 [2020-12-03 12:37:23,706 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 75 [2020-12-03 12:37:23,879 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 17 [2020-12-03 12:37:24,329 WARN L197 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 33 [2020-12-03 12:37:24,574 WARN L197 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 9 [2020-12-03 12:37:24,576 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2020-12-03 12:37:24,576 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2020-12-03 12:37:24,576 INFO L262 CegarLoopResult]: For program point L217(line 217) no Hoare annotation was computed. [2020-12-03 12:37:24,576 INFO L262 CegarLoopResult]: For program point L151(lines 151 281) no Hoare annotation was computed. [2020-12-03 12:37:24,576 INFO L262 CegarLoopResult]: For program point L110(lines 110 123) no Hoare annotation was computed. [2020-12-03 12:37:24,576 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 217) no Hoare annotation was computed. [2020-12-03 12:37:24,576 INFO L262 CegarLoopResult]: For program point L36(lines 36 300) no Hoare annotation was computed. [2020-12-03 12:37:24,577 INFO L262 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-12-03 12:37:24,577 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 100) no Hoare annotation was computed. [2020-12-03 12:37:24,577 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-03 12:37:24,577 INFO L262 CegarLoopResult]: For program point L86(lines 86 127) no Hoare annotation was computed. [2020-12-03 12:37:24,577 INFO L262 CegarLoopResult]: For program point L20(lines 20 312) no Hoare annotation was computed. [2020-12-03 12:37:24,577 INFO L262 CegarLoopResult]: For program point L243(lines 243 267) no Hoare annotation was computed. [2020-12-03 12:37:24,577 INFO L262 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-12-03 12:37:24,577 INFO L262 CegarLoopResult]: For program point L45(lines 45 288) no Hoare annotation was computed. [2020-12-03 12:37:24,577 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 257) no Hoare annotation was computed. [2020-12-03 12:37:24,577 INFO L258 CegarLoopResult]: At program point L293(lines 38 294) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~main__j~0) (<= (+ ULTIMATE.start_main_~main__j~0 5) ULTIMATE.start_main_~main__bufsize~0) (<= 0 ULTIMATE.start_main_~main__i~0) (< ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__len~0) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2020-12-03 12:37:24,577 INFO L262 CegarLoopResult]: For program point L227(lines 227 269) no Hoare annotation was computed. [2020-12-03 12:37:24,578 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 205) no Hoare annotation was computed. [2020-12-03 12:37:24,578 INFO L262 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-12-03 12:37:24,578 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 88) no Hoare annotation was computed. [2020-12-03 12:37:24,578 INFO L265 CegarLoopResult]: At program point L310(lines 13 313) the Hoare annotation is: true [2020-12-03 12:37:24,578 INFO L262 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-12-03 12:37:24,578 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 245) no Hoare annotation was computed. [2020-12-03 12:37:24,578 INFO L262 CegarLoopResult]: For program point L203(lines 203 273) no Hoare annotation was computed. [2020-12-03 12:37:24,578 INFO L262 CegarLoopResult]: For program point L38(lines 38 294) no Hoare annotation was computed. [2020-12-03 12:37:24,578 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 141) no Hoare annotation was computed. [2020-12-03 12:37:24,578 INFO L262 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-12-03 12:37:24,578 INFO L262 CegarLoopResult]: For program point L245(line 245) no Hoare annotation was computed. [2020-12-03 12:37:24,579 INFO L262 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-12-03 12:37:24,579 INFO L262 CegarLoopResult]: For program point L229(line 229) no Hoare annotation was computed. [2020-12-03 12:37:24,579 INFO L262 CegarLoopResult]: For program point L163(lines 163 279) no Hoare annotation was computed. [2020-12-03 12:37:24,579 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 112) no Hoare annotation was computed. [2020-12-03 12:37:24,579 INFO L258 CegarLoopResult]: At program point L304(lines 25 312) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~main__i~0) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2020-12-03 12:37:24,579 INFO L262 CegarLoopResult]: For program point L205(line 205) no Hoare annotation was computed. [2020-12-03 12:37:24,579 INFO L262 CegarLoopResult]: For program point L139(lines 139 283) no Hoare annotation was computed. [2020-12-03 12:37:24,579 INFO L262 CegarLoopResult]: For program point L98(lines 98 125) no Hoare annotation was computed. [2020-12-03 12:37:24,579 INFO L262 CegarLoopResult]: For program point L255(lines 255 265) no Hoare annotation was computed. [2020-12-03 12:37:24,579 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 165) no Hoare annotation was computed. [2020-12-03 12:37:24,580 INFO L262 CegarLoopResult]: For program point L57(lines 57 286) no Hoare annotation was computed. [2020-12-03 12:37:24,580 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 47) no Hoare annotation was computed. [2020-12-03 12:37:24,580 INFO L262 CegarLoopResult]: For program point L74(lines 74 129) no Hoare annotation was computed. [2020-12-03 12:37:24,580 INFO L258 CegarLoopResult]: At program point L264(lines 31 306) the Hoare annotation is: (let ((.cse3 (<= (+ ULTIMATE.start_main_~main__j~0 4) ULTIMATE.start_main_~main__bufsize~0))) (let ((.cse1 (let ((.cse4 (<= 1 ULTIMATE.start_main_~main__i~0))) (or (and .cse3 .cse4) (and (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~12 0)) .cse4)))) (.cse2 (<= 1 ULTIMATE.start_main_~main__j~0)) (.cse0 (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0))) (or (and (= ULTIMATE.start_main_~main__j~0 0) (<= 0 ULTIMATE.start_main_~main__i~0) (< ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__len~0) .cse0) (and .cse1 .cse2 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~14 0)) .cse0) (and .cse3 .cse1 .cse2 .cse0)))) [2020-12-03 12:37:24,580 INFO L262 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-12-03 12:37:24,580 INFO L262 CegarLoopResult]: For program point L66(lines 66 285) no Hoare annotation was computed. [2020-12-03 12:37:24,580 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-03 12:37:24,580 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 153) no Hoare annotation was computed. [2020-12-03 12:37:24,581 INFO L262 CegarLoopResult]: For program point L215(lines 215 271) no Hoare annotation was computed. [2020-12-03 12:37:24,581 INFO L262 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-12-03 12:37:24,581 INFO L262 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-12-03 12:37:24,581 INFO L262 CegarLoopResult]: For program point L257(line 257) no Hoare annotation was computed. [2020-12-03 12:37:24,581 INFO L262 CegarLoopResult]: For program point L191(lines 191 275) no Hoare annotation was computed. [2020-12-03 12:37:24,581 INFO L262 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-12-03 12:37:24,581 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2020-12-03 12:37:24,581 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 76) no Hoare annotation was computed. [2020-12-03 12:37:24,581 INFO L262 CegarLoopResult]: For program point L175(lines 175 277) no Hoare annotation was computed. [2020-12-03 12:37:24,581 INFO L262 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-12-03 12:37:24,582 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 229) no Hoare annotation was computed. [2020-12-03 12:37:24,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 12:37:24 BoogieIcfgContainer [2020-12-03 12:37:24,602 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-03 12:37:24,603 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 12:37:24,603 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 12:37:24,603 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 12:37:24,603 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:37:19" (3/4) ... [2020-12-03 12:37:24,606 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-03 12:37:24,619 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-12-03 12:37:24,620 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-03 12:37:24,620 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 12:37:24,621 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 12:37:24,722 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_322152b2-37a0-47f2-97f3-29b6d91f2693/bin/utaipan/witness.graphml [2020-12-03 12:37:24,723 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 12:37:24,724 INFO L168 Benchmark]: Toolchain (without parser) took 6308.54 ms. Allocated memory was 109.1 MB in the beginning and 159.4 MB in the end (delta: 50.3 MB). Free memory was 83.9 MB in the beginning and 135.4 MB in the end (delta: -51.5 MB). Peak memory consumption was 89.7 MB. Max. memory is 16.1 GB. [2020-12-03 12:37:24,725 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 77.6 MB. Free memory is still 41.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:37:24,725 INFO L168 Benchmark]: CACSL2BoogieTranslator took 482.49 ms. Allocated memory is still 109.1 MB. Free memory was 83.7 MB in the beginning and 80.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-03 12:37:24,726 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.25 ms. Allocated memory is still 109.1 MB. Free memory was 80.5 MB in the beginning and 78.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:37:24,726 INFO L168 Benchmark]: Boogie Preprocessor took 36.67 ms. Allocated memory is still 109.1 MB. Free memory was 78.6 MB in the beginning and 77.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:37:24,727 INFO L168 Benchmark]: RCFGBuilder took 540.87 ms. Allocated memory is still 109.1 MB. Free memory was 77.2 MB in the beginning and 53.7 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:37:24,727 INFO L168 Benchmark]: TraceAbstraction took 5066.07 ms. Allocated memory was 109.1 MB in the beginning and 159.4 MB in the end (delta: 50.3 MB). Free memory was 86.6 MB in the beginning and 51.1 MB in the end (delta: 35.5 MB). Peak memory consumption was 91.2 MB. Max. memory is 16.1 GB. [2020-12-03 12:37:24,728 INFO L168 Benchmark]: Witness Printer took 120.13 ms. Allocated memory is still 159.4 MB. Free memory was 51.1 MB in the beginning and 135.4 MB in the end (delta: -84.3 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2020-12-03 12:37:24,730 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 77.6 MB. Free memory is still 41.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 482.49 ms. Allocated memory is still 109.1 MB. Free memory was 83.7 MB in the beginning and 80.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.25 ms. Allocated memory is still 109.1 MB. Free memory was 80.5 MB in the beginning and 78.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.67 ms. Allocated memory is still 109.1 MB. Free memory was 78.6 MB in the beginning and 77.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 540.87 ms. Allocated memory is still 109.1 MB. Free memory was 77.2 MB in the beginning and 53.7 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5066.07 ms. Allocated memory was 109.1 MB in the beginning and 159.4 MB in the end (delta: 50.3 MB). Free memory was 86.6 MB in the beginning and 51.1 MB in the end (delta: 35.5 MB). Peak memory consumption was 91.2 MB. Max. memory is 16.1 GB. * Witness Printer took 120.13 ms. Allocated memory is still 159.4 MB. Free memory was 51.1 MB in the beginning and 135.4 MB in the end (delta: -84.3 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 59]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 165]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 153]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 257]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 88]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 47]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 76]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 217]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 100]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 112]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 141]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 193]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 245]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 229]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 205]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 177]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: (((0 <= main__j && main__j + 5 <= main__bufsize) && 0 <= main__i) && main__i < main__len) && main__limit + 4 <= main__bufsize - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: ((((main__j == 0 && 0 <= main__i) && main__i < main__len) && main__limit + 4 <= main__bufsize) || (((((main__j + 4 <= main__bufsize && 1 <= main__i) || (!(__VERIFIER_assert__cond == 0) && 1 <= main__i)) && 1 <= main__j) && !(__VERIFIER_assert__cond == 0)) && main__limit + 4 <= main__bufsize)) || (((main__j + 4 <= main__bufsize && ((main__j + 4 <= main__bufsize && 1 <= main__i) || (!(__VERIFIER_assert__cond == 0) && 1 <= main__i))) && 1 <= main__j) && main__limit + 4 <= main__bufsize) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 0 <= main__i && main__limit + 4 <= main__bufsize - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 58 locations, 16 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.6s, OverallIterations: 16, TraceHistogramMax: 1, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 865 SDtfs, 1260 SDslu, 673 SDs, 0 SdLazy, 912 SolverSat, 105 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 436 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 25 NumberOfFragments, 109 HoareAnnotationTreeSize, 4 FomulaSimplifications, 233044656 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 4 FomulaSimplificationsInter, 253791 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 214 NumberOfCodeBlocks, 214 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 8604 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...