./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label42.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_0a029034-e0b3-4403-b7b1-7543d3ccceb8/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0a029034-e0b3-4403-b7b1-7543d3ccceb8/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0a029034-e0b3-4403-b7b1-7543d3ccceb8/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0a029034-e0b3-4403-b7b1-7543d3ccceb8/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label42.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0a029034-e0b3-4403-b7b1-7543d3ccceb8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0a029034-e0b3-4403-b7b1-7543d3ccceb8/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 ca099a0a865236295bec7881986648360a2333c3 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 17:21:13,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 17:21:13,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 17:21:13,385 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 17:21:13,386 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 17:21:13,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 17:21:13,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 17:21:13,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 17:21:13,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 17:21:13,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 17:21:13,395 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 17:21:13,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 17:21:13,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 17:21:13,398 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 17:21:13,399 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 17:21:13,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 17:21:13,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 17:21:13,402 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 17:21:13,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 17:21:13,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 17:21:13,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 17:21:13,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 17:21:13,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 17:21:13,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 17:21:13,415 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 17:21:13,415 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 17:21:13,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 17:21:13,417 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 17:21:13,417 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 17:21:13,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 17:21:13,419 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 17:21:13,420 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 17:21:13,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 17:21:13,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 17:21:13,423 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 17:21:13,423 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 17:21:13,423 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 17:21:13,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 17:21:13,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 17:21:13,425 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 17:21:13,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 17:21:13,427 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0a029034-e0b3-4403-b7b1-7543d3ccceb8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 17:21:13,447 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 17:21:13,448 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 17:21:13,448 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 17:21:13,449 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 17:21:13,449 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 17:21:13,449 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 17:21:13,449 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 17:21:13,449 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 17:21:13,449 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 17:21:13,450 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 17:21:13,450 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 17:21:13,450 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 17:21:13,450 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 17:21:13,450 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 17:21:13,450 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 17:21:13,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 17:21:13,451 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 17:21:13,451 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 17:21:13,451 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 17:21:13,451 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 17:21:13,451 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 17:21:13,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 17:21:13,452 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 17:21:13,452 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 17:21:13,452 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 17:21:13,452 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 17:21:13,452 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 17:21:13,452 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 17:21:13,452 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 17:21:13,452 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 17:21:13,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 17:21:13,453 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 17:21:13,453 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 17:21:13,453 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 17:21:13,453 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 17:21:13,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 17:21:13,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 17:21:13,453 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 17:21:13,454 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 17:21:13,454 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_0a029034-e0b3-4403-b7b1-7543d3ccceb8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0a029034-e0b3-4403-b7b1-7543d3ccceb8/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca099a0a865236295bec7881986648360a2333c3 [2020-12-09 17:21:13,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 17:21:13,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 17:21:13,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 17:21:13,658 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 17:21:13,659 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 17:21:13,659 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0a029034-e0b3-4403-b7b1-7543d3ccceb8/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem01_label42.c [2020-12-09 17:21:13,700 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0a029034-e0b3-4403-b7b1-7543d3ccceb8/bin/utaipan/data/4c5240ca9/80bd6962236b46a08c722fd59457a531/FLAG0462a6703 [2020-12-09 17:21:14,153 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 17:21:14,153 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0a029034-e0b3-4403-b7b1-7543d3ccceb8/sv-benchmarks/c/eca-rers2012/Problem01_label42.c [2020-12-09 17:21:14,164 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0a029034-e0b3-4403-b7b1-7543d3ccceb8/bin/utaipan/data/4c5240ca9/80bd6962236b46a08c722fd59457a531/FLAG0462a6703 [2020-12-09 17:21:14,175 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0a029034-e0b3-4403-b7b1-7543d3ccceb8/bin/utaipan/data/4c5240ca9/80bd6962236b46a08c722fd59457a531 [2020-12-09 17:21:14,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 17:21:14,177 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 17:21:14,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 17:21:14,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 17:21:14,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 17:21:14,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:21:14" (1/1) ... [2020-12-09 17:21:14,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@292e8a73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:21:14, skipping insertion in model container [2020-12-09 17:21:14,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:21:14" (1/1) ... [2020-12-09 17:21:14,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 17:21:14,225 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 17:21:14,444 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_0a029034-e0b3-4403-b7b1-7543d3ccceb8/sv-benchmarks/c/eca-rers2012/Problem01_label42.c[19849,19862] [2020-12-09 17:21:14,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 17:21:14,466 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 17:21:14,520 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_0a029034-e0b3-4403-b7b1-7543d3ccceb8/sv-benchmarks/c/eca-rers2012/Problem01_label42.c[19849,19862] [2020-12-09 17:21:14,526 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 17:21:14,537 INFO L208 MainTranslator]: Completed translation [2020-12-09 17:21:14,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:21:14 WrapperNode [2020-12-09 17:21:14,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 17:21:14,538 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 17:21:14,538 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 17:21:14,538 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 17:21:14,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:21:14" (1/1) ... [2020-12-09 17:21:14,556 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:21:14" (1/1) ... [2020-12-09 17:21:14,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 17:21:14,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 17:21:14,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 17:21:14,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 17:21:14,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:21:14" (1/1) ... [2020-12-09 17:21:14,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:21:14" (1/1) ... [2020-12-09 17:21:14,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:21:14" (1/1) ... [2020-12-09 17:21:14,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:21:14" (1/1) ... [2020-12-09 17:21:14,608 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:21:14" (1/1) ... [2020-12-09 17:21:14,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:21:14" (1/1) ... [2020-12-09 17:21:14,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:21:14" (1/1) ... [2020-12-09 17:21:14,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 17:21:14,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 17:21:14,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 17:21:14,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 17:21:14,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:21:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a029034-e0b3-4403-b7b1-7543d3ccceb8/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 [2020-12-09 17:21:14,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 17:21:14,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 17:21:14,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 17:21:14,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 17:21:15,854 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 17:21:15,854 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-09 17:21:15,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:21:15 BoogieIcfgContainer [2020-12-09 17:21:15,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 17:21:15,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 17:21:15,858 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 17:21:15,860 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 17:21:15,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 05:21:14" (1/3) ... [2020-12-09 17:21:15,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a23e85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:21:15, skipping insertion in model container [2020-12-09 17:21:15,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:21:14" (2/3) ... [2020-12-09 17:21:15,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a23e85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:21:15, skipping insertion in model container [2020-12-09 17:21:15,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:21:15" (3/3) ... [2020-12-09 17:21:15,863 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label42.c [2020-12-09 17:21:15,872 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 17:21:15,876 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 17:21:15,886 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 17:21:15,909 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 17:21:15,909 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 17:21:15,910 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 17:21:15,910 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 17:21:15,910 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 17:21:15,910 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 17:21:15,910 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 17:21:15,910 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 17:21:15,920 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2020-12-09 17:21:15,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-12-09 17:21:15,926 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:21:15,926 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:21:15,926 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:21:15,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:21:15,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1806908248, now seen corresponding path program 1 times [2020-12-09 17:21:15,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 17:21:15,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071134868] [2020-12-09 17:21:15,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 17:21:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:21:16,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 17:21:16,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071134868] [2020-12-09 17:21:16,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 17:21:16,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 17:21:16,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482007211] [2020-12-09 17:21:16,303 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 17:21:16,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 17:21:16,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 17:21:16,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 17:21:16,316 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 4 states. [2020-12-09 17:21:16,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:21:16,795 INFO L93 Difference]: Finished difference Result 297 states and 569 transitions. [2020-12-09 17:21:16,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 17:21:16,796 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 71 [2020-12-09 17:21:16,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:21:16,809 INFO L225 Difference]: With dead ends: 297 [2020-12-09 17:21:16,809 INFO L226 Difference]: Without dead ends: 216 [2020-12-09 17:21:16,812 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 17:21:16,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2020-12-09 17:21:16,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2020-12-09 17:21:16,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2020-12-09 17:21:16,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 336 transitions. [2020-12-09 17:21:16,859 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 336 transitions. Word has length 71 [2020-12-09 17:21:16,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:21:16,860 INFO L481 AbstractCegarLoop]: Abstraction has 216 states and 336 transitions. [2020-12-09 17:21:16,860 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 17:21:16,860 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 336 transitions. [2020-12-09 17:21:16,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-09 17:21:16,864 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:21:16,864 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:21:16,865 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 17:21:16,865 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:21:16,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:21:16,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1703773383, now seen corresponding path program 1 times [2020-12-09 17:21:16,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 17:21:16,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867051230] [2020-12-09 17:21:16,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 17:21:16,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:21:16,996 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 17:21:16,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867051230] [2020-12-09 17:21:16,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 17:21:16,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 17:21:16,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505465069] [2020-12-09 17:21:16,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 17:21:16,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 17:21:16,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 17:21:16,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 17:21:16,999 INFO L87 Difference]: Start difference. First operand 216 states and 336 transitions. Second operand 4 states. [2020-12-09 17:21:17,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:21:17,418 INFO L93 Difference]: Finished difference Result 571 states and 986 transitions. [2020-12-09 17:21:17,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 17:21:17,418 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 78 [2020-12-09 17:21:17,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:21:17,421 INFO L225 Difference]: With dead ends: 571 [2020-12-09 17:21:17,421 INFO L226 Difference]: Without dead ends: 358 [2020-12-09 17:21:17,423 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 17:21:17,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-12-09 17:21:17,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 216. [2020-12-09 17:21:17,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2020-12-09 17:21:17,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 293 transitions. [2020-12-09 17:21:17,439 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 293 transitions. Word has length 78 [2020-12-09 17:21:17,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:21:17,439 INFO L481 AbstractCegarLoop]: Abstraction has 216 states and 293 transitions. [2020-12-09 17:21:17,439 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 17:21:17,439 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 293 transitions. [2020-12-09 17:21:17,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-12-09 17:21:17,442 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:21:17,442 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:21:17,442 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 17:21:17,443 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:21:17,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:21:17,443 INFO L82 PathProgramCache]: Analyzing trace with hash 350103159, now seen corresponding path program 1 times [2020-12-09 17:21:17,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 17:21:17,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715030968] [2020-12-09 17:21:17,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 17:21:17,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:21:17,510 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 17:21:17,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715030968] [2020-12-09 17:21:17,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 17:21:17,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 17:21:17,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707090022] [2020-12-09 17:21:17,512 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 17:21:17,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 17:21:17,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 17:21:17,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 17:21:17,512 INFO L87 Difference]: Start difference. First operand 216 states and 293 transitions. Second operand 4 states. [2020-12-09 17:21:17,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:21:17,782 INFO L93 Difference]: Finished difference Result 573 states and 802 transitions. [2020-12-09 17:21:17,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 17:21:17,783 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 86 [2020-12-09 17:21:17,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:21:17,784 INFO L225 Difference]: With dead ends: 573 [2020-12-09 17:21:17,785 INFO L226 Difference]: Without dead ends: 358 [2020-12-09 17:21:17,786 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 17:21:17,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-12-09 17:21:17,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2020-12-09 17:21:17,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-12-09 17:21:17,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 484 transitions. [2020-12-09 17:21:17,804 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 484 transitions. Word has length 86 [2020-12-09 17:21:17,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:21:17,804 INFO L481 AbstractCegarLoop]: Abstraction has 358 states and 484 transitions. [2020-12-09 17:21:17,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 17:21:17,805 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 484 transitions. [2020-12-09 17:21:17,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-09 17:21:17,808 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:21:17,808 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:21:17,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 17:21:17,808 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:21:17,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:21:17,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1470701861, now seen corresponding path program 1 times [2020-12-09 17:21:17,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 17:21:17,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752201706] [2020-12-09 17:21:17,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 17:21:17,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:21:17,861 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-09 17:21:17,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752201706] [2020-12-09 17:21:17,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 17:21:17,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 17:21:17,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673868098] [2020-12-09 17:21:17,863 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 17:21:17,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 17:21:17,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 17:21:17,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 17:21:17,864 INFO L87 Difference]: Start difference. First operand 358 states and 484 transitions. Second operand 3 states. [2020-12-09 17:21:18,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:21:18,119 INFO L93 Difference]: Finished difference Result 999 states and 1341 transitions. [2020-12-09 17:21:18,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 17:21:18,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 95 [2020-12-09 17:21:18,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:21:18,123 INFO L225 Difference]: With dead ends: 999 [2020-12-09 17:21:18,123 INFO L226 Difference]: Without dead ends: 642 [2020-12-09 17:21:18,124 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 17:21:18,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2020-12-09 17:21:18,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 571. [2020-12-09 17:21:18,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2020-12-09 17:21:18,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 780 transitions. [2020-12-09 17:21:18,141 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 780 transitions. Word has length 95 [2020-12-09 17:21:18,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:21:18,141 INFO L481 AbstractCegarLoop]: Abstraction has 571 states and 780 transitions. [2020-12-09 17:21:18,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 17:21:18,142 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 780 transitions. [2020-12-09 17:21:18,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-09 17:21:18,144 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:21:18,144 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:21:18,144 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-09 17:21:18,144 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:21:18,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:21:18,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1745915978, now seen corresponding path program 1 times [2020-12-09 17:21:18,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 17:21:18,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003930445] [2020-12-09 17:21:18,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 17:21:18,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:21:18,211 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 17:21:18,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003930445] [2020-12-09 17:21:18,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 17:21:18,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 17:21:18,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380809120] [2020-12-09 17:21:18,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 17:21:18,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 17:21:18,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 17:21:18,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 17:21:18,213 INFO L87 Difference]: Start difference. First operand 571 states and 780 transitions. Second operand 4 states. [2020-12-09 17:21:18,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:21:18,536 INFO L93 Difference]: Finished difference Result 1496 states and 2088 transitions. [2020-12-09 17:21:18,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 17:21:18,536 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 101 [2020-12-09 17:21:18,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:21:18,540 INFO L225 Difference]: With dead ends: 1496 [2020-12-09 17:21:18,540 INFO L226 Difference]: Without dead ends: 926 [2020-12-09 17:21:18,541 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 17:21:18,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2020-12-09 17:21:18,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 713. [2020-12-09 17:21:18,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 713 states. [2020-12-09 17:21:18,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 958 transitions. [2020-12-09 17:21:18,566 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 958 transitions. Word has length 101 [2020-12-09 17:21:18,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:21:18,567 INFO L481 AbstractCegarLoop]: Abstraction has 713 states and 958 transitions. [2020-12-09 17:21:18,567 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 17:21:18,567 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 958 transitions. [2020-12-09 17:21:18,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-12-09 17:21:18,569 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:21:18,569 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:21:18,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-09 17:21:18,569 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:21:18,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:21:18,570 INFO L82 PathProgramCache]: Analyzing trace with hash -656956851, now seen corresponding path program 1 times [2020-12-09 17:21:18,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 17:21:18,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287974817] [2020-12-09 17:21:18,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 17:21:18,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:21:18,633 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-09 17:21:18,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287974817] [2020-12-09 17:21:18,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 17:21:18,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 17:21:18,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543523081] [2020-12-09 17:21:18,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 17:21:18,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 17:21:18,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 17:21:18,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 17:21:18,635 INFO L87 Difference]: Start difference. First operand 713 states and 958 transitions. Second operand 4 states. [2020-12-09 17:21:18,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:21:18,988 INFO L93 Difference]: Finished difference Result 1638 states and 2178 transitions. [2020-12-09 17:21:18,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 17:21:18,988 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 115 [2020-12-09 17:21:18,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:21:18,993 INFO L225 Difference]: With dead ends: 1638 [2020-12-09 17:21:18,993 INFO L226 Difference]: Without dead ends: 926 [2020-12-09 17:21:18,995 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 17:21:18,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2020-12-09 17:21:19,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 855. [2020-12-09 17:21:19,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 855 states. [2020-12-09 17:21:19,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1123 transitions. [2020-12-09 17:21:19,015 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1123 transitions. Word has length 115 [2020-12-09 17:21:19,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:21:19,015 INFO L481 AbstractCegarLoop]: Abstraction has 855 states and 1123 transitions. [2020-12-09 17:21:19,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 17:21:19,016 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1123 transitions. [2020-12-09 17:21:19,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-12-09 17:21:19,017 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:21:19,017 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:21:19,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-09 17:21:19,017 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:21:19,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:21:19,018 INFO L82 PathProgramCache]: Analyzing trace with hash 905969960, now seen corresponding path program 1 times [2020-12-09 17:21:19,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 17:21:19,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7987558] [2020-12-09 17:21:19,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 17:21:19,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:21:19,078 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-09 17:21:19,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7987558] [2020-12-09 17:21:19,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 17:21:19,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 17:21:19,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677711394] [2020-12-09 17:21:19,079 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 17:21:19,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 17:21:19,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 17:21:19,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 17:21:19,079 INFO L87 Difference]: Start difference. First operand 855 states and 1123 transitions. Second operand 3 states. [2020-12-09 17:21:19,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:21:19,313 INFO L93 Difference]: Finished difference Result 1922 states and 2496 transitions. [2020-12-09 17:21:19,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 17:21:19,314 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2020-12-09 17:21:19,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:21:19,319 INFO L225 Difference]: With dead ends: 1922 [2020-12-09 17:21:19,320 INFO L226 Difference]: Without dead ends: 1068 [2020-12-09 17:21:19,321 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 17:21:19,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2020-12-09 17:21:19,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 926. [2020-12-09 17:21:19,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 926 states. [2020-12-09 17:21:19,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1209 transitions. [2020-12-09 17:21:19,349 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1209 transitions. Word has length 132 [2020-12-09 17:21:19,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:21:19,349 INFO L481 AbstractCegarLoop]: Abstraction has 926 states and 1209 transitions. [2020-12-09 17:21:19,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 17:21:19,350 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1209 transitions. [2020-12-09 17:21:19,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-12-09 17:21:19,352 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:21:19,352 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:21:19,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-09 17:21:19,352 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:21:19,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:21:19,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1229741418, now seen corresponding path program 1 times [2020-12-09 17:21:19,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 17:21:19,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810856792] [2020-12-09 17:21:19,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 17:21:19,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:21:19,628 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 63 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 17:21:19,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810856792] [2020-12-09 17:21:19,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126120537] [2020-12-09 17:21:19,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a029034-e0b3-4403-b7b1-7543d3ccceb8/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 17:21:19,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:21:19,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 17:21:19,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 17:21:19,850 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-12-09 17:21:19,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 17:21:19,973 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-12-09 17:21:19,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2020-12-09 17:21:19,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 7 [2020-12-09 17:21:19,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000311449] [2020-12-09 17:21:19,974 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 17:21:19,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 17:21:19,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 17:21:19,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-09 17:21:19,975 INFO L87 Difference]: Start difference. First operand 926 states and 1209 transitions. Second operand 3 states. [2020-12-09 17:21:20,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:21:20,180 INFO L93 Difference]: Finished difference Result 1851 states and 2417 transitions. [2020-12-09 17:21:20,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 17:21:20,181 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 175 [2020-12-09 17:21:20,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:21:20,184 INFO L225 Difference]: With dead ends: 1851 [2020-12-09 17:21:20,185 INFO L226 Difference]: Without dead ends: 926 [2020-12-09 17:21:20,186 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 347 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-09 17:21:20,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2020-12-09 17:21:20,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 713. [2020-12-09 17:21:20,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 713 states. [2020-12-09 17:21:20,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 868 transitions. [2020-12-09 17:21:20,198 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 868 transitions. Word has length 175 [2020-12-09 17:21:20,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:21:20,198 INFO L481 AbstractCegarLoop]: Abstraction has 713 states and 868 transitions. [2020-12-09 17:21:20,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 17:21:20,198 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 868 transitions. [2020-12-09 17:21:20,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-12-09 17:21:20,200 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:21:20,200 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:21:20,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2020-12-09 17:21:20,401 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:21:20,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:21:20,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1422758198, now seen corresponding path program 1 times [2020-12-09 17:21:20,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 17:21:20,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215374520] [2020-12-09 17:21:20,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 17:21:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:21:20,478 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-12-09 17:21:20,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215374520] [2020-12-09 17:21:20,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 17:21:20,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 17:21:20,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611278703] [2020-12-09 17:21:20,479 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 17:21:20,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 17:21:20,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 17:21:20,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 17:21:20,479 INFO L87 Difference]: Start difference. First operand 713 states and 868 transitions. Second operand 3 states. [2020-12-09 17:21:20,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:21:20,685 INFO L93 Difference]: Finished difference Result 1709 states and 2079 transitions. [2020-12-09 17:21:20,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 17:21:20,685 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 175 [2020-12-09 17:21:20,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:21:20,689 INFO L225 Difference]: With dead ends: 1709 [2020-12-09 17:21:20,689 INFO L226 Difference]: Without dead ends: 997 [2020-12-09 17:21:20,690 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 17:21:20,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2020-12-09 17:21:20,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 926. [2020-12-09 17:21:20,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 926 states. [2020-12-09 17:21:20,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1113 transitions. [2020-12-09 17:21:20,708 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1113 transitions. Word has length 175 [2020-12-09 17:21:20,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:21:20,708 INFO L481 AbstractCegarLoop]: Abstraction has 926 states and 1113 transitions. [2020-12-09 17:21:20,709 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 17:21:20,709 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1113 transitions. [2020-12-09 17:21:20,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-12-09 17:21:20,711 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:21:20,711 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:21:20,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-09 17:21:20,712 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:21:20,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:21:20,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1489448393, now seen corresponding path program 1 times [2020-12-09 17:21:20,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 17:21:20,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820917280] [2020-12-09 17:21:20,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 17:21:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:21:20,834 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 159 proven. 35 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-12-09 17:21:20,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820917280] [2020-12-09 17:21:20,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327980083] [2020-12-09 17:21:20,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a029034-e0b3-4403-b7b1-7543d3ccceb8/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 17:21:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:21:20,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 17:21:20,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 17:21:21,086 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-12-09 17:21:21,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 17:21:21,206 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-12-09 17:21:21,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2020-12-09 17:21:21,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 7 [2020-12-09 17:21:21,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375081988] [2020-12-09 17:21:21,207 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 17:21:21,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 17:21:21,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 17:21:21,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-09 17:21:21,208 INFO L87 Difference]: Start difference. First operand 926 states and 1113 transitions. Second operand 3 states. [2020-12-09 17:21:21,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:21:21,406 INFO L93 Difference]: Finished difference Result 2135 states and 2551 transitions. [2020-12-09 17:21:21,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 17:21:21,407 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2020-12-09 17:21:21,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:21:21,412 INFO L225 Difference]: With dead ends: 2135 [2020-12-09 17:21:21,412 INFO L226 Difference]: Without dead ends: 1210 [2020-12-09 17:21:21,413 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 373 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-09 17:21:21,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2020-12-09 17:21:21,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 1068. [2020-12-09 17:21:21,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1068 states. [2020-12-09 17:21:21,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1279 transitions. [2020-12-09 17:21:21,439 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1279 transitions. Word has length 188 [2020-12-09 17:21:21,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:21:21,440 INFO L481 AbstractCegarLoop]: Abstraction has 1068 states and 1279 transitions. [2020-12-09 17:21:21,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 17:21:21,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1279 transitions. [2020-12-09 17:21:21,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-12-09 17:21:21,444 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:21:21,444 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:21:21,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-09 17:21:21,645 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:21:21,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:21:21,647 INFO L82 PathProgramCache]: Analyzing trace with hash 922667617, now seen corresponding path program 1 times [2020-12-09 17:21:21,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 17:21:21,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374586046] [2020-12-09 17:21:21,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 17:21:21,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:21:21,794 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 124 proven. 67 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-12-09 17:21:21,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374586046] [2020-12-09 17:21:21,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579096672] [2020-12-09 17:21:21,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a029034-e0b3-4403-b7b1-7543d3ccceb8/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 17:21:21,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:21:21,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 17:21:21,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 17:21:21,985 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2020-12-09 17:21:21,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 17:21:22,114 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2020-12-09 17:21:22,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2020-12-09 17:21:22,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 5 [2020-12-09 17:21:22,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900140731] [2020-12-09 17:21:22,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 17:21:22,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 17:21:22,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 17:21:22,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-09 17:21:22,116 INFO L87 Difference]: Start difference. First operand 1068 states and 1279 transitions. Second operand 3 states. [2020-12-09 17:21:22,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:21:22,288 INFO L93 Difference]: Finished difference Result 2133 states and 2556 transitions. [2020-12-09 17:21:22,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 17:21:22,289 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 197 [2020-12-09 17:21:22,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:21:22,289 INFO L225 Difference]: With dead ends: 2133 [2020-12-09 17:21:22,289 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 17:21:22,291 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 393 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-09 17:21:22,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 17:21:22,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 17:21:22,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 17:21:22,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 17:21:22,291 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 197 [2020-12-09 17:21:22,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:21:22,291 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 17:21:22,291 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 17:21:22,291 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 17:21:22,291 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 17:21:22,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-12-09 17:21:22,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 17:21:22,701 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 37 [2020-12-09 17:21:22,814 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 37 [2020-12-09 17:21:22,816 INFO L262 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-12-09 17:21:22,816 INFO L262 CegarLoopResult]: For program point L102(lines 102 400) no Hoare annotation was computed. [2020-12-09 17:21:22,816 INFO L262 CegarLoopResult]: For program point L598(line 598) no Hoare annotation was computed. [2020-12-09 17:21:22,816 INFO L262 CegarLoopResult]: For program point L334(lines 334 400) no Hoare annotation was computed. [2020-12-09 17:21:22,816 INFO L262 CegarLoopResult]: For program point L302(lines 302 400) no Hoare annotation was computed. [2020-12-09 17:21:22,816 INFO L262 CegarLoopResult]: For program point L170(lines 170 400) no Hoare annotation was computed. [2020-12-09 17:21:22,816 INFO L262 CegarLoopResult]: For program point L204(lines 204 400) no Hoare annotation was computed. [2020-12-09 17:21:22,816 INFO L262 CegarLoopResult]: For program point L72(lines 72 400) no Hoare annotation was computed. [2020-12-09 17:21:22,816 INFO L262 CegarLoopResult]: For program point L271(lines 271 400) no Hoare annotation was computed. [2020-12-09 17:21:22,816 INFO L262 CegarLoopResult]: For program point L139(lines 139 400) no Hoare annotation was computed. [2020-12-09 17:21:22,816 INFO L262 CegarLoopResult]: For program point L371(lines 371 400) no Hoare annotation was computed. [2020-12-09 17:21:22,816 INFO L262 CegarLoopResult]: For program point L107(lines 107 400) no Hoare annotation was computed. [2020-12-09 17:21:22,816 INFO L262 CegarLoopResult]: For program point L41(lines 41 400) no Hoare annotation was computed. [2020-12-09 17:21:22,816 INFO L262 CegarLoopResult]: For program point L339(lines 339 400) no Hoare annotation was computed. [2020-12-09 17:21:22,816 INFO L262 CegarLoopResult]: For program point L207(lines 207 400) no Hoare annotation was computed. [2020-12-09 17:21:22,816 INFO L262 CegarLoopResult]: For program point L75(lines 75 400) no Hoare annotation was computed. [2020-12-09 17:21:22,817 INFO L262 CegarLoopResult]: For program point L373(lines 373 400) no Hoare annotation was computed. [2020-12-09 17:21:22,817 INFO L262 CegarLoopResult]: For program point L241(lines 241 400) no Hoare annotation was computed. [2020-12-09 17:21:22,817 INFO L262 CegarLoopResult]: For program point L175(lines 175 400) no Hoare annotation was computed. [2020-12-09 17:21:22,817 INFO L262 CegarLoopResult]: For program point L275(lines 275 400) no Hoare annotation was computed. [2020-12-09 17:21:22,817 INFO L262 CegarLoopResult]: For program point L375(lines 375 400) no Hoare annotation was computed. [2020-12-09 17:21:22,817 INFO L262 CegarLoopResult]: For program point L309(lines 309 400) no Hoare annotation was computed. [2020-12-09 17:21:22,817 INFO L262 CegarLoopResult]: For program point L45(lines 45 400) no Hoare annotation was computed. [2020-12-09 17:21:22,817 INFO L262 CegarLoopResult]: For program point L343(lines 343 400) no Hoare annotation was computed. [2020-12-09 17:21:22,817 INFO L262 CegarLoopResult]: For program point L112(lines 112 400) no Hoare annotation was computed. [2020-12-09 17:21:22,817 INFO L262 CegarLoopResult]: For program point L278(lines 278 400) no Hoare annotation was computed. [2020-12-09 17:21:22,817 INFO L262 CegarLoopResult]: For program point L146(lines 146 400) no Hoare annotation was computed. [2020-12-09 17:21:22,817 INFO L262 CegarLoopResult]: For program point L213(lines 213 400) no Hoare annotation was computed. [2020-12-09 17:21:22,817 INFO L262 CegarLoopResult]: For program point L82(lines 82 400) no Hoare annotation was computed. [2020-12-09 17:21:22,817 INFO L262 CegarLoopResult]: For program point L347(lines 347 400) no Hoare annotation was computed. [2020-12-09 17:21:22,817 INFO L262 CegarLoopResult]: For program point L248(lines 248 400) no Hoare annotation was computed. [2020-12-09 17:21:22,817 INFO L262 CegarLoopResult]: For program point L183(lines 183 400) no Hoare annotation was computed. [2020-12-09 17:21:22,817 INFO L262 CegarLoopResult]: For program point L150(lines 150 400) no Hoare annotation was computed. [2020-12-09 17:21:22,817 INFO L262 CegarLoopResult]: For program point L382(lines 382 400) no Hoare annotation was computed. [2020-12-09 17:21:22,817 INFO L262 CegarLoopResult]: For program point L316(lines 316 400) no Hoare annotation was computed. [2020-12-09 17:21:22,817 INFO L262 CegarLoopResult]: For program point L283(lines 283 400) no Hoare annotation was computed. [2020-12-09 17:21:22,817 INFO L262 CegarLoopResult]: For program point L118(lines 118 400) no Hoare annotation was computed. [2020-12-09 17:21:22,817 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 17:21:22,817 INFO L262 CegarLoopResult]: For program point L218(lines 218 400) no Hoare annotation was computed. [2020-12-09 17:21:22,818 INFO L262 CegarLoopResult]: For program point L53(lines 53 400) no Hoare annotation was computed. [2020-12-09 17:21:22,818 INFO L262 CegarLoopResult]: For program point L154(lines 154 400) no Hoare annotation was computed. [2020-12-09 17:21:22,818 INFO L258 CegarLoopResult]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse8 (= ~a8~0 13))) (let ((.cse1 (<= ~a21~0 0)) (.cse6 (= ~a21~0 1)) (.cse7 (= ~a12~0 8)) (.cse9 (= ~a20~0 1)) (.cse4 (not (= ~a7~0 1))) (.cse2 (= ~a17~0 1)) (.cse0 (<= ~a16~0 5)) (.cse5 (not .cse8)) (.cse3 (<= ~a17~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse4) (and .cse3 .cse5 .cse4) (and .cse3 .cse1) (and .cse0 .cse5 .cse4 .cse2) (and .cse6 .cse7 .cse8 .cse9 (= ~a16~0 4) .cse2) (and .cse6 .cse7 .cse9 .cse4 .cse2) (and (= ~a16~0 6) .cse5 .cse4 .cse2) (and .cse0 .cse5 .cse3)))) [2020-12-09 17:21:22,818 INFO L262 CegarLoopResult]: For program point L188(lines 188 400) no Hoare annotation was computed. [2020-12-09 17:21:22,818 INFO L262 CegarLoopResult]: For program point L387(lines 387 400) no Hoare annotation was computed. [2020-12-09 17:21:22,818 INFO L262 CegarLoopResult]: For program point L288(lines 288 400) no Hoare annotation was computed. [2020-12-09 17:21:22,818 INFO L262 CegarLoopResult]: For program point L255(lines 255 400) no Hoare annotation was computed. [2020-12-09 17:21:22,818 INFO L262 CegarLoopResult]: For program point L90(lines 90 400) no Hoare annotation was computed. [2020-12-09 17:21:22,818 INFO L262 CegarLoopResult]: For program point L355(lines 355 400) no Hoare annotation was computed. [2020-12-09 17:21:22,818 INFO L262 CegarLoopResult]: For program point L322(lines 322 400) no Hoare annotation was computed. [2020-12-09 17:21:22,818 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 17:21:22,818 INFO L262 CegarLoopResult]: For program point L124(lines 124 400) no Hoare annotation was computed. [2020-12-09 17:21:22,818 INFO L265 CegarLoopResult]: At program point L587(lines 587 604) the Hoare annotation is: true [2020-12-09 17:21:22,818 INFO L262 CegarLoopResult]: For program point L224(lines 224 400) no Hoare annotation was computed. [2020-12-09 17:21:22,818 INFO L262 CegarLoopResult]: For program point L158(lines 158 400) no Hoare annotation was computed. [2020-12-09 17:21:22,818 INFO L262 CegarLoopResult]: For program point L59(lines 59 400) no Hoare annotation was computed. [2020-12-09 17:21:22,819 INFO L262 CegarLoopResult]: For program point L94(lines 94 400) no Hoare annotation was computed. [2020-12-09 17:21:22,819 INFO L262 CegarLoopResult]: For program point L392(lines 392 400) no Hoare annotation was computed. [2020-12-09 17:21:22,819 INFO L262 CegarLoopResult]: For program point L326(lines 326 400) no Hoare annotation was computed. [2020-12-09 17:21:22,819 INFO L262 CegarLoopResult]: For program point L260(lines 260 400) no Hoare annotation was computed. [2020-12-09 17:21:22,819 INFO L262 CegarLoopResult]: For program point L228(lines 228 400) no Hoare annotation was computed. [2020-12-09 17:21:22,819 INFO L262 CegarLoopResult]: For program point L162(lines 162 400) no Hoare annotation was computed. [2020-12-09 17:21:22,819 INFO L262 CegarLoopResult]: For program point L129(lines 129 400) no Hoare annotation was computed. [2020-12-09 17:21:22,819 INFO L262 CegarLoopResult]: For program point L328(lines 328 400) no Hoare annotation was computed. [2020-12-09 17:21:22,819 INFO L262 CegarLoopResult]: For program point L196(lines 196 400) no Hoare annotation was computed. [2020-12-09 17:21:22,819 INFO L262 CegarLoopResult]: For program point L64(lines 64 400) no Hoare annotation was computed. [2020-12-09 17:21:22,819 INFO L258 CegarLoopResult]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse8 (= ~a8~0 13))) (let ((.cse1 (<= ~a21~0 0)) (.cse6 (= ~a21~0 1)) (.cse7 (= ~a12~0 8)) (.cse9 (= ~a20~0 1)) (.cse4 (not (= ~a7~0 1))) (.cse2 (= ~a17~0 1)) (.cse0 (<= ~a16~0 5)) (.cse5 (not .cse8)) (.cse3 (<= ~a17~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse4) (and .cse3 .cse5 .cse4) (and .cse3 .cse1) (and .cse0 .cse5 .cse4 .cse2) (and .cse6 .cse7 .cse8 .cse9 (= ~a16~0 4) .cse2) (and .cse6 .cse7 .cse9 .cse4 .cse2) (and (= ~a16~0 6) .cse5 .cse4 .cse2) (and .cse0 .cse5 .cse3)))) [2020-12-09 17:21:22,819 INFO L262 CegarLoopResult]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2020-12-09 17:21:22,819 INFO L262 CegarLoopResult]: For program point L296(lines 296 400) no Hoare annotation was computed. [2020-12-09 17:21:22,819 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 531) no Hoare annotation was computed. [2020-12-09 17:21:22,819 INFO L262 CegarLoopResult]: For program point L363(lines 363 400) no Hoare annotation was computed. [2020-12-09 17:21:22,819 INFO L262 CegarLoopResult]: For program point L199(lines 199 400) no Hoare annotation was computed. [2020-12-09 17:21:22,819 INFO L262 CegarLoopResult]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2020-12-09 17:21:22,819 INFO L262 CegarLoopResult]: For program point L365(lines 365 400) no Hoare annotation was computed. [2020-12-09 17:21:22,819 INFO L262 CegarLoopResult]: For program point L266(lines 266 400) no Hoare annotation was computed. [2020-12-09 17:21:22,819 INFO L262 CegarLoopResult]: For program point L233(lines 233 400) no Hoare annotation was computed. [2020-12-09 17:21:22,820 INFO L262 CegarLoopResult]: For program point L134(lines 134 400) no Hoare annotation was computed. [2020-12-09 17:21:22,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 05:21:22 BoogieIcfgContainer [2020-12-09 17:21:22,834 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 17:21:22,834 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 17:21:22,835 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 17:21:22,835 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 17:21:22,835 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:21:15" (3/4) ... [2020-12-09 17:21:22,837 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 17:21:22,852 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 102 nodes and edges [2020-12-09 17:21:22,853 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2020-12-09 17:21:22,854 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-12-09 17:21:22,855 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-09 17:21:22,936 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0a029034-e0b3-4403-b7b1-7543d3ccceb8/bin/utaipan/witness.graphml [2020-12-09 17:21:22,936 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 17:21:22,937 INFO L168 Benchmark]: Toolchain (without parser) took 8759.39 ms. Allocated memory was 100.7 MB in the beginning and 308.3 MB in the end (delta: 207.6 MB). Free memory was 61.6 MB in the beginning and 247.5 MB in the end (delta: -185.9 MB). Peak memory consumption was 22.6 MB. Max. memory is 16.1 GB. [2020-12-09 17:21:22,937 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 100.7 MB. Free memory is still 79.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 17:21:22,937 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.62 ms. Allocated memory is still 100.7 MB. Free memory was 61.5 MB in the beginning and 60.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. [2020-12-09 17:21:22,938 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.50 ms. Allocated memory is still 100.7 MB. Free memory was 60.1 MB in the beginning and 54.3 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 17:21:22,938 INFO L168 Benchmark]: Boogie Preprocessor took 36.60 ms. Allocated memory is still 100.7 MB. Free memory was 54.3 MB in the beginning and 50.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 17:21:22,938 INFO L168 Benchmark]: RCFGBuilder took 1234.80 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 50.1 MB in the beginning and 67.5 MB in the end (delta: -17.4 MB). Peak memory consumption was 32.7 MB. Max. memory is 16.1 GB. [2020-12-09 17:21:22,938 INFO L168 Benchmark]: TraceAbstraction took 6976.22 ms. Allocated memory was 121.6 MB in the beginning and 308.3 MB in the end (delta: 186.6 MB). Free memory was 66.6 MB in the beginning and 263.2 MB in the end (delta: -196.7 MB). Peak memory consumption was 162.3 MB. Max. memory is 16.1 GB. [2020-12-09 17:21:22,939 INFO L168 Benchmark]: Witness Printer took 101.88 ms. Allocated memory is still 308.3 MB. Free memory was 263.2 MB in the beginning and 247.5 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-12-09 17:21:22,940 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 100.7 MB. Free memory is still 79.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 358.62 ms. Allocated memory is still 100.7 MB. Free memory was 61.5 MB in the beginning and 60.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.50 ms. Allocated memory is still 100.7 MB. Free memory was 60.1 MB in the beginning and 54.3 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.60 ms. Allocated memory is still 100.7 MB. Free memory was 54.3 MB in the beginning and 50.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1234.80 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 50.1 MB in the beginning and 67.5 MB in the end (delta: -17.4 MB). Peak memory consumption was 32.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6976.22 ms. Allocated memory was 121.6 MB in the beginning and 308.3 MB in the end (delta: 186.6 MB). Free memory was 66.6 MB in the beginning and 263.2 MB in the end (delta: -196.7 MB). Peak memory consumption was 162.3 MB. Max. memory is 16.1 GB. * Witness Printer took 101.88 ms. Allocated memory is still 308.3 MB. Free memory was 263.2 MB in the beginning and 247.5 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 531]: 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 1 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((((((((a16 <= 5 && a21 <= 0) && a17 == 1) || ((a16 <= 5 && a17 <= 0) && !(a7 == 1))) || ((a17 <= 0 && !(a8 == 13)) && !(a7 == 1))) || (a17 <= 0 && a21 <= 0)) || (((a16 <= 5 && !(a8 == 13)) && !(a7 == 1)) && a17 == 1)) || (((((a21 == 1 && a12 == 8) && a8 == 13) && a20 == 1) && a16 == 4) && a17 == 1)) || ((((a21 == 1 && a12 == 8) && a20 == 1) && !(a7 == 1)) && a17 == 1)) || (((a16 == 6 && !(a8 == 13)) && !(a7 == 1)) && a17 == 1)) || ((a16 <= 5 && !(a8 == 13)) && a17 <= 0) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: (((((((((a16 <= 5 && a21 <= 0) && a17 == 1) || ((a16 <= 5 && a17 <= 0) && !(a7 == 1))) || ((a17 <= 0 && !(a8 == 13)) && !(a7 == 1))) || (a17 <= 0 && a21 <= 0)) || (((a16 <= 5 && !(a8 == 13)) && !(a7 == 1)) && a17 == 1)) || (((((a21 == 1 && a12 == 8) && a8 == 13) && a20 == 1) && a16 == 4) && a17 == 1)) || ((((a21 == 1 && a12 == 8) && a20 == 1) && !(a7 == 1)) && a17 == 1)) || (((a16 == 6 && !(a8 == 13)) && !(a7 == 1)) && a17 == 1)) || ((a16 <= 5 && !(a8 == 13)) && a17 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.5s, OverallIterations: 11, TraceHistogramMax: 6, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 559 SDtfs, 1020 SDslu, 58 SDs, 0 SdLazy, 2701 SolverSat, 760 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1154 GetRequests, 1125 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1068occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 1065 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 38 NumberOfFragments, 237 HoareAnnotationTreeSize, 3 FomulaSimplifications, 4726 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 634 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 1973 NumberOfCodeBlocks, 1973 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2516 ConstructedInterpolants, 0 QuantifiedInterpolants, 1692432 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1294 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 17 InterpolantComputations, 14 PerfectInterpolantSequences, 2024/2218 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...