./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/recHanoi03-2.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_631c855d-cf71-4f51-9659-f5bfafe8d266/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_631c855d-cf71-4f51-9659-f5bfafe8d266/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_631c855d-cf71-4f51-9659-f5bfafe8d266/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_631c855d-cf71-4f51-9659-f5bfafe8d266/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive/recHanoi03-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_631c855d-cf71-4f51-9659-f5bfafe8d266/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_631c855d-cf71-4f51-9659-f5bfafe8d266/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 f30ad67ccdaa679199b144fc55a3359f87c5bd3e ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 19:56:02,378 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 19:56:02,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 19:56:02,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 19:56:02,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 19:56:02,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 19:56:02,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 19:56:02,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 19:56:02,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 19:56:02,415 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 19:56:02,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 19:56:02,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 19:56:02,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 19:56:02,418 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 19:56:02,419 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 19:56:02,419 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 19:56:02,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 19:56:02,421 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 19:56:02,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 19:56:02,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 19:56:02,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 19:56:02,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 19:56:02,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 19:56:02,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 19:56:02,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 19:56:02,430 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 19:56:02,431 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 19:56:02,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 19:56:02,432 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 19:56:02,433 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 19:56:02,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 19:56:02,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 19:56:02,435 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 19:56:02,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 19:56:02,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 19:56:02,436 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 19:56:02,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 19:56:02,437 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 19:56:02,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 19:56:02,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 19:56:02,438 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 19:56:02,439 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_631c855d-cf71-4f51-9659-f5bfafe8d266/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 19:56:02,455 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 19:56:02,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 19:56:02,456 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 19:56:02,456 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 19:56:02,456 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 19:56:02,456 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 19:56:02,456 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 19:56:02,456 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 19:56:02,457 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 19:56:02,457 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 19:56:02,457 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 19:56:02,457 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 19:56:02,457 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 19:56:02,457 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 19:56:02,457 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 19:56:02,458 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 19:56:02,458 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 19:56:02,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 19:56:02,458 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 19:56:02,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 19:56:02,458 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 19:56:02,458 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 19:56:02,459 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 19:56:02,459 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 19:56:02,459 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 19:56:02,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 19:56:02,459 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 19:56:02,459 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 19:56:02,459 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 19:56:02,459 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 19:56:02,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 19:56:02,460 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 19:56:02,460 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 19:56:02,460 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 19:56:02,460 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 19:56:02,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 19:56:02,460 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 19:56:02,461 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 19:56:02,461 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 19:56:02,461 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_631c855d-cf71-4f51-9659-f5bfafe8d266/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_631c855d-cf71-4f51-9659-f5bfafe8d266/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f30ad67ccdaa679199b144fc55a3359f87c5bd3e [2020-12-09 19:56:02,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 19:56:02,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 19:56:02,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 19:56:02,656 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 19:56:02,656 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 19:56:02,657 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_631c855d-cf71-4f51-9659-f5bfafe8d266/bin/utaipan/../../sv-benchmarks/c/recursive/recHanoi03-2.c [2020-12-09 19:56:02,698 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_631c855d-cf71-4f51-9659-f5bfafe8d266/bin/utaipan/data/1f1f885f8/a5d5abc621834728ad934ad19547406a/FLAG8f21d6f9e [2020-12-09 19:56:03,108 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 19:56:03,108 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_631c855d-cf71-4f51-9659-f5bfafe8d266/sv-benchmarks/c/recursive/recHanoi03-2.c [2020-12-09 19:56:03,114 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_631c855d-cf71-4f51-9659-f5bfafe8d266/bin/utaipan/data/1f1f885f8/a5d5abc621834728ad934ad19547406a/FLAG8f21d6f9e [2020-12-09 19:56:03,126 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_631c855d-cf71-4f51-9659-f5bfafe8d266/bin/utaipan/data/1f1f885f8/a5d5abc621834728ad934ad19547406a [2020-12-09 19:56:03,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 19:56:03,130 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 19:56:03,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 19:56:03,132 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 19:56:03,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 19:56:03,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:56:03" (1/1) ... [2020-12-09 19:56:03,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bd2a76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:56:03, skipping insertion in model container [2020-12-09 19:56:03,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:56:03" (1/1) ... [2020-12-09 19:56:03,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 19:56:03,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 19:56:03,271 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_631c855d-cf71-4f51-9659-f5bfafe8d266/sv-benchmarks/c/recursive/recHanoi03-2.c[769,782] [2020-12-09 19:56:03,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 19:56:03,282 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 19:56:03,295 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_631c855d-cf71-4f51-9659-f5bfafe8d266/sv-benchmarks/c/recursive/recHanoi03-2.c[769,782] [2020-12-09 19:56:03,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 19:56:03,309 INFO L208 MainTranslator]: Completed translation [2020-12-09 19:56:03,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:56:03 WrapperNode [2020-12-09 19:56:03,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 19:56:03,311 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 19:56:03,311 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 19:56:03,311 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 19:56:03,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:56:03" (1/1) ... [2020-12-09 19:56:03,324 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:56:03" (1/1) ... [2020-12-09 19:56:03,338 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 19:56:03,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 19:56:03,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 19:56:03,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 19:56:03,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:56:03" (1/1) ... [2020-12-09 19:56:03,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:56:03" (1/1) ... [2020-12-09 19:56:03,348 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:56:03" (1/1) ... [2020-12-09 19:56:03,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:56:03" (1/1) ... [2020-12-09 19:56:03,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:56:03" (1/1) ... [2020-12-09 19:56:03,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:56:03" (1/1) ... [2020-12-09 19:56:03,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:56:03" (1/1) ... [2020-12-09 19:56:03,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 19:56:03,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 19:56:03,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 19:56:03,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 19:56:03,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:56:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_631c855d-cf71-4f51-9659-f5bfafe8d266/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 19:56:03,414 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2020-12-09 19:56:03,414 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2020-12-09 19:56:03,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 19:56:03,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 19:56:03,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 19:56:03,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 19:56:03,586 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 19:56:03,586 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-09 19:56:03,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:56:03 BoogieIcfgContainer [2020-12-09 19:56:03,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 19:56:03,590 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 19:56:03,590 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 19:56:03,593 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 19:56:03,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:56:03" (1/3) ... [2020-12-09 19:56:03,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13bd648a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:56:03, skipping insertion in model container [2020-12-09 19:56:03,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:56:03" (2/3) ... [2020-12-09 19:56:03,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13bd648a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:56:03, skipping insertion in model container [2020-12-09 19:56:03,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:56:03" (3/3) ... [2020-12-09 19:56:03,596 INFO L111 eAbstractionObserver]: Analyzing ICFG recHanoi03-2.c [2020-12-09 19:56:03,606 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 19:56:03,608 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 19:56:03,615 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 19:56:03,632 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 19:56:03,632 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 19:56:03,633 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 19:56:03,633 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 19:56:03,633 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 19:56:03,633 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 19:56:03,633 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 19:56:03,633 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 19:56:03,644 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-12-09 19:56:03,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 19:56:03,648 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:56:03,649 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 19:56:03,649 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 19:56:03,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:56:03,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1546859687, now seen corresponding path program 1 times [2020-12-09 19:56:03,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 19:56:03,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181666024] [2020-12-09 19:56:03,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 19:56:03,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:56:03,835 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 19:56:03,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181666024] [2020-12-09 19:56:03,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 19:56:03,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 19:56:03,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542901518] [2020-12-09 19:56:03,840 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 19:56:03,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 19:56:03,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 19:56:03,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-09 19:56:03,851 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 6 states. [2020-12-09 19:56:03,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:56:03,916 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2020-12-09 19:56:03,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 19:56:03,922 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-12-09 19:56:03,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:56:03,927 INFO L225 Difference]: With dead ends: 25 [2020-12-09 19:56:03,928 INFO L226 Difference]: Without dead ends: 15 [2020-12-09 19:56:03,930 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-12-09 19:56:03,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-12-09 19:56:03,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-12-09 19:56:03,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-12-09 19:56:03,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2020-12-09 19:56:03,961 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10 [2020-12-09 19:56:03,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:56:03,961 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2020-12-09 19:56:03,961 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 19:56:03,961 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2020-12-09 19:56:03,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-09 19:56:03,962 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:56:03,962 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 19:56:03,963 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 19:56:03,963 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 19:56:03,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:56:03,964 INFO L82 PathProgramCache]: Analyzing trace with hash -797183849, now seen corresponding path program 1 times [2020-12-09 19:56:03,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 19:56:03,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502194852] [2020-12-09 19:56:03,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 19:56:03,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:56:04,041 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-09 19:56:04,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502194852] [2020-12-09 19:56:04,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055897338] [2020-12-09 19:56:04,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_631c855d-cf71-4f51-9659-f5bfafe8d266/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 19:56:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:56:04,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-09 19:56:04,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 19:56:04,244 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-09 19:56:04,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 19:56:04,442 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 19:56:04,446 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 19:56:04,451 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 19:56:04,490 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-09 19:56:04,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [32533154] [2020-12-09 19:56:04,512 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2020-12-09 19:56:04,512 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 19:56:04,518 FATAL L? ?]: Ignoring exception! java.lang.IllegalArgumentException: Recursive programs are not supported. at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.topsortRelevant(CallGraph.java:132) at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.(CallGraph.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.(IcfgInterpreter.java:92) at de.uni_freiburg.informatik.ultimate.plugins.sifa.SifaBuilder.construct(SifaBuilder.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:289) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:138) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-12-09 19:56:04,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 19:56:04,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 19 [2020-12-09 19:56:04,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632503685] [2020-12-09 19:56:04,521 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-09 19:56:04,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 19:56:04,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-09 19:56:04,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2020-12-09 19:56:04,523 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 19 states. [2020-12-09 19:56:04,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:56:04,651 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2020-12-09 19:56:04,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-09 19:56:04,651 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 16 [2020-12-09 19:56:04,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:56:04,652 INFO L225 Difference]: With dead ends: 27 [2020-12-09 19:56:04,653 INFO L226 Difference]: Without dead ends: 21 [2020-12-09 19:56:04,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=454, Unknown=0, NotChecked=0, Total=552 [2020-12-09 19:56:04,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-12-09 19:56:04,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-12-09 19:56:04,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-12-09 19:56:04,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-12-09 19:56:04,659 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 16 [2020-12-09 19:56:04,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:56:04,660 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-12-09 19:56:04,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-09 19:56:04,660 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-12-09 19:56:04,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-09 19:56:04,661 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:56:04,661 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 19:56:04,862 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-09 19:56:04,863 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 19:56:04,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:56:04,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1671831511, now seen corresponding path program 2 times [2020-12-09 19:56:04,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 19:56:04,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747415477] [2020-12-09 19:56:04,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 19:56:04,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:56:05,082 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-09 19:56:05,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747415477] [2020-12-09 19:56:05,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241902409] [2020-12-09 19:56:05,082 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_631c855d-cf71-4f51-9659-f5bfafe8d266/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 19:56:05,119 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-12-09 19:56:05,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-09 19:56:05,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-09 19:56:05,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 19:56:05,417 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-09 19:56:05,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 19:56:06,184 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-09 19:56:06,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [800833134] [2020-12-09 19:56:06,187 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2020-12-09 19:56:06,187 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 19:56:06,187 FATAL L? ?]: Ignoring exception! java.lang.IllegalArgumentException: Recursive programs are not supported. at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.topsortRelevant(CallGraph.java:132) at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.(CallGraph.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.(IcfgInterpreter.java:92) at de.uni_freiburg.informatik.ultimate.plugins.sifa.SifaBuilder.construct(SifaBuilder.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:289) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:138) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-12-09 19:56:06,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 19:56:06,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 15] total 29 [2020-12-09 19:56:06,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195879214] [2020-12-09 19:56:06,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-12-09 19:56:06,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 19:56:06,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-12-09 19:56:06,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=702, Unknown=0, NotChecked=0, Total=812 [2020-12-09 19:56:06,189 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 29 states. [2020-12-09 19:56:06,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:56:06,424 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2020-12-09 19:56:06,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-12-09 19:56:06,424 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 28 [2020-12-09 19:56:06,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:56:06,425 INFO L225 Difference]: With dead ends: 36 [2020-12-09 19:56:06,425 INFO L226 Difference]: Without dead ends: 30 [2020-12-09 19:56:06,426 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 38 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=228, Invalid=1332, Unknown=0, NotChecked=0, Total=1560 [2020-12-09 19:56:06,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-12-09 19:56:06,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-12-09 19:56:06,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-09 19:56:06,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-12-09 19:56:06,431 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 28 [2020-12-09 19:56:06,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:56:06,431 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-12-09 19:56:06,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-12-09 19:56:06,431 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-12-09 19:56:06,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-09 19:56:06,432 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:56:06,432 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 19:56:06,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 19:56:06,634 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 19:56:06,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:56:06,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1245455975, now seen corresponding path program 3 times [2020-12-09 19:56:06,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 19:56:06,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234343523] [2020-12-09 19:56:06,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 19:56:06,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:56:06,838 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-12-09 19:56:06,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234343523] [2020-12-09 19:56:06,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063178234] [2020-12-09 19:56:06,839 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_631c855d-cf71-4f51-9659-f5bfafe8d266/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 19:56:06,874 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-09 19:56:06,874 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-09 19:56:06,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 31 conjunts are in the unsatisfiable core [2020-12-09 19:56:06,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 19:56:07,495 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-12-09 19:56:07,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 19:56:10,121 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-12-09 19:56:10,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1545392160] [2020-12-09 19:56:10,122 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2020-12-09 19:56:10,122 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 19:56:10,123 FATAL L? ?]: Ignoring exception! java.lang.IllegalArgumentException: Recursive programs are not supported. at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.topsortRelevant(CallGraph.java:132) at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.(CallGraph.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.(IcfgInterpreter.java:92) at de.uni_freiburg.informatik.ultimate.plugins.sifa.SifaBuilder.construct(SifaBuilder.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:289) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:138) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-12-09 19:56:10,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 19:56:10,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 24] total 44 [2020-12-09 19:56:10,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241583511] [2020-12-09 19:56:10,124 INFO L461 AbstractCegarLoop]: Interpolant automaton has 44 states [2020-12-09 19:56:10,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 19:56:10,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2020-12-09 19:56:10,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=1677, Unknown=0, NotChecked=0, Total=1892 [2020-12-09 19:56:10,125 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 44 states. [2020-12-09 19:56:10,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:56:10,685 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2020-12-09 19:56:10,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-12-09 19:56:10,685 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 46 [2020-12-09 19:56:10,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:56:10,686 INFO L225 Difference]: With dead ends: 54 [2020-12-09 19:56:10,686 INFO L226 Difference]: Without dead ends: 48 [2020-12-09 19:56:10,688 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 62 SyntacticMatches, 10 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1005 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=579, Invalid=3843, Unknown=0, NotChecked=0, Total=4422 [2020-12-09 19:56:10,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-12-09 19:56:10,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-12-09 19:56:10,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-12-09 19:56:10,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2020-12-09 19:56:10,694 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 46 [2020-12-09 19:56:10,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:56:10,695 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2020-12-09 19:56:10,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 44 states. [2020-12-09 19:56:10,695 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2020-12-09 19:56:10,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-09 19:56:10,697 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:56:10,697 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 19:56:10,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 19:56:10,899 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 19:56:10,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:56:10,900 INFO L82 PathProgramCache]: Analyzing trace with hash -828786649, now seen corresponding path program 4 times [2020-12-09 19:56:10,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 19:56:10,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837264273] [2020-12-09 19:56:10,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 19:56:10,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:56:11,297 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-12-09 19:56:11,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837264273] [2020-12-09 19:56:11,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992441229] [2020-12-09 19:56:11,298 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_631c855d-cf71-4f51-9659-f5bfafe8d266/bin/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 19:56:11,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:56:11,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 55 conjunts are in the unsatisfiable core [2020-12-09 19:56:11,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 19:56:13,358 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-12-09 19:56:13,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 19:56:14,974 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-12-09 19:56:15,274 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-12-09 19:56:15,392 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-12-09 19:56:15,507 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-12-09 19:56:15,631 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-12-09 19:56:15,749 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-12-09 19:56:15,877 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-12-09 19:56:15,996 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-12-09 19:56:16,129 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-12-09 19:56:16,253 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-12-09 19:56:16,394 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-12-09 19:56:16,525 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-12-09 19:56:18,550 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-12-09 19:56:18,653 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-12-09 19:56:18,765 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-12-09 19:56:18,874 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-12-09 19:56:18,997 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-12-09 19:56:19,120 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-12-09 19:56:21,316 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-12-09 19:56:21,520 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-12-09 19:56:21,625 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-12-09 19:56:30,495 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 366 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2020-12-09 19:56:30,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1097746287] [2020-12-09 19:56:30,497 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2020-12-09 19:56:30,497 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 19:56:30,497 FATAL L? ?]: Ignoring exception! java.lang.IllegalArgumentException: Recursive programs are not supported. at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.topsortRelevant(CallGraph.java:132) at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.(CallGraph.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.(IcfgInterpreter.java:92) at de.uni_freiburg.informatik.ultimate.plugins.sifa.SifaBuilder.construct(SifaBuilder.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:289) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:138) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-12-09 19:56:30,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 19:56:30,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30, 42] total 74 [2020-12-09 19:56:30,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93231474] [2020-12-09 19:56:30,498 INFO L461 AbstractCegarLoop]: Interpolant automaton has 74 states [2020-12-09 19:56:30,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 19:56:30,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2020-12-09 19:56:30,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=533, Invalid=4869, Unknown=0, NotChecked=0, Total=5402 [2020-12-09 19:56:30,500 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 74 states. [2020-12-09 19:56:33,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:56:33,214 INFO L93 Difference]: Finished difference Result 90 states and 102 transitions. [2020-12-09 19:56:33,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-12-09 19:56:33,215 INFO L78 Accepts]: Start accepts. Automaton has 74 states. Word has length 82 [2020-12-09 19:56:33,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:56:33,217 INFO L225 Difference]: With dead ends: 90 [2020-12-09 19:56:33,217 INFO L226 Difference]: Without dead ends: 84 [2020-12-09 19:56:33,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 110 SyntacticMatches, 22 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3696 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=1767, Invalid=12753, Unknown=0, NotChecked=0, Total=14520 [2020-12-09 19:56:33,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-12-09 19:56:33,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-12-09 19:56:33,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-12-09 19:56:33,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 85 transitions. [2020-12-09 19:56:33,229 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 85 transitions. Word has length 82 [2020-12-09 19:56:33,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:56:33,229 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 85 transitions. [2020-12-09 19:56:33,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 74 states. [2020-12-09 19:56:33,229 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 85 transitions. [2020-12-09 19:56:33,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-12-09 19:56:33,231 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:56:33,232 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 19:56:33,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 19:56:33,432 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 19:56:33,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:56:33,432 INFO L82 PathProgramCache]: Analyzing trace with hash 479378343, now seen corresponding path program 5 times [2020-12-09 19:56:33,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 19:56:33,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83846776] [2020-12-09 19:56:33,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 19:56:33,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:56:34,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 0 proven. 876 refuted. 0 times theorem prover too weak. 876 trivial. 0 not checked. [2020-12-09 19:56:34,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83846776] [2020-12-09 19:56:34,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284208368] [2020-12-09 19:56:34,869 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_631c855d-cf71-4f51-9659-f5bfafe8d266/bin/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 19:56:35,155 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 25 check-sat command(s) [2020-12-09 19:56:35,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-09 19:56:35,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 53 conjunts are in the unsatisfiable core [2020-12-09 19:56:35,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 19:56:47,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 876 proven. 0 refuted. 0 times theorem prover too weak. 876 trivial. 0 not checked. [2020-12-09 19:56:47,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 19:56:50,748 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-09 19:56:50,859 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-09 19:56:50,968 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-09 19:56:51,080 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-12-09 19:56:51,193 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-12-09 19:56:51,314 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-09 19:56:51,435 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-09 19:56:51,550 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-09 19:56:51,668 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-09 19:56:51,805 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-12-09 19:56:51,954 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-12-09 19:56:52,114 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-09 19:56:52,237 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-09 19:56:52,369 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-12-09 19:56:52,500 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-12-09 19:56:52,645 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-12-09 19:56:52,793 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-12-09 19:56:52,937 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-12-09 19:56:53,122 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-12-09 19:56:53,303 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-12-09 19:56:53,488 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-12-09 19:56:53,687 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-12-09 19:56:53,880 WARN L197 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-12-09 19:56:54,082 WARN L197 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-12-09 19:56:54,284 WARN L197 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-12-09 19:56:54,498 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-12-09 19:56:54,703 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-12-09 19:56:54,924 WARN L197 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-12-09 19:56:55,138 WARN L197 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-12-09 19:56:55,364 WARN L197 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-12-09 19:56:55,590 WARN L197 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-12-09 19:56:55,855 WARN L197 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-12-09 19:56:56,063 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-12-09 19:56:56,274 WARN L197 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-12-09 19:56:56,493 WARN L197 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-12-09 19:56:56,736 WARN L197 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-12-09 19:56:57,004 WARN L197 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-12-09 19:56:57,246 WARN L197 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-12-09 19:56:57,472 WARN L197 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-12-09 19:56:57,728 WARN L197 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-12-09 19:56:57,954 WARN L197 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-12-09 19:57:01,893 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-09 19:57:02,296 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-09 19:57:02,411 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-09 19:57:02,534 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-12-09 19:57:02,653 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-12-09 19:57:02,785 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-12-09 19:57:02,889 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-12-09 19:57:03,090 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-09 19:57:03,204 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-09 19:57:03,323 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-09 19:57:03,451 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-12-09 19:57:03,572 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-12-09 19:57:03,706 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-09 19:57:03,836 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-09 19:57:03,975 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-09 19:57:04,109 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-09 19:57:04,258 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-12-09 19:57:04,401 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-12-09 19:57:04,539 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-09 19:57:04,677 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-09 19:57:04,820 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-12-09 19:57:04,967 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-12-09 19:57:05,132 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-12-09 19:57:05,290 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-12-09 19:57:05,464 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-12-09 19:57:05,632 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-12-09 19:57:05,827 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-12-09 19:57:06,005 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-12-09 19:57:06,212 WARN L197 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-12-09 19:57:06,396 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-12-09 19:57:06,584 WARN L197 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-12-09 19:57:06,780 WARN L197 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-12-09 19:57:06,999 WARN L197 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-12-09 19:57:07,228 WARN L197 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-12-09 19:57:07,435 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-12-09 19:57:07,646 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-12-09 19:57:07,886 WARN L197 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-12-09 19:57:08,109 WARN L197 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-12-09 19:57:08,306 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-12-09 19:57:08,518 WARN L197 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-12-09 19:57:08,737 WARN L197 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-12-09 19:57:08,935 WARN L197 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-12-09 19:57:09,153 WARN L197 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-12-09 19:57:09,387 WARN L197 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-12-09 19:57:13,252 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-12-09 19:57:13,461 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-12-09 19:57:13,569 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-09 19:57:13,674 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-09 19:57:13,794 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-12-09 19:57:13,910 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-12-09 19:57:14,040 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-09 19:57:14,162 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-09 19:57:14,288 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-12-09 19:57:14,414 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-12-09 19:57:14,556 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-12-09 19:57:14,697 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-12-09 19:57:14,843 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-09 19:57:14,982 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-09 19:57:15,140 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-09 19:57:15,292 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-09 19:57:15,448 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-12-09 19:57:15,605 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-12-09 19:57:15,763 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-09 19:57:15,935 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-09 19:57:16,110 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-09 19:57:16,287 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-09 19:57:16,465 WARN L197 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-12-09 19:57:16,655 WARN L197 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-12-09 19:57:16,833 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-09 19:57:17,023 WARN L197 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-09 19:57:17,205 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-12-09 19:57:17,382 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-12-09 19:57:17,583 WARN L197 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-12-09 19:57:17,790 WARN L197 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-12-09 19:57:18,006 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-12-09 19:57:18,217 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-12-09 19:57:18,420 WARN L197 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-12-09 19:57:18,599 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-12-09 19:57:18,787 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-12-09 19:57:18,968 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-12-09 19:57:19,206 WARN L197 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-12-09 19:57:19,437 WARN L197 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-12-09 19:57:19,666 WARN L197 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-12-09 19:57:19,901 WARN L197 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-12-09 19:57:20,134 WARN L197 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-12-09 19:57:20,438 WARN L197 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-12-09 19:57:20,703 WARN L197 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-12-09 19:57:20,984 WARN L197 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-12-09 19:57:21,256 WARN L197 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-12-09 19:57:21,544 WARN L197 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-12-09 19:57:25,288 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-12-09 19:57:25,971 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-09 19:57:26,078 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-09 19:57:26,189 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-12-09 19:57:26,297 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-12-09 19:57:26,438 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-09 19:57:26,575 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-09 19:57:26,708 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-12-09 19:57:26,829 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-12-09 19:57:26,955 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-12-09 19:57:27,077 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-12-09 19:57:27,212 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-09 19:57:27,351 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-09 19:57:27,495 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-09 19:57:27,668 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-09 19:57:27,837 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-12-09 19:57:27,997 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-12-09 19:57:28,146 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-09 19:57:28,283 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-09 19:57:28,429 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-09 19:57:28,607 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-09 19:57:28,798 WARN L197 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-12-09 19:57:28,949 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-12-09 19:57:29,101 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-09 19:57:29,258 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-09 19:57:29,456 WARN L197 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-12-09 19:57:29,670 WARN L197 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-12-09 19:57:29,892 WARN L197 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-12-09 19:57:30,076 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-12-09 19:57:30,266 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-12-09 19:57:30,457 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-12-09 19:57:30,648 WARN L197 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-12-09 19:57:30,840 WARN L197 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-12-09 19:57:31,055 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-12-09 19:57:31,265 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-12-09 19:57:31,519 WARN L197 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-12-09 19:57:31,797 WARN L197 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-12-09 19:57:32,022 WARN L197 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-12-09 19:57:32,261 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-12-09 19:57:32,526 WARN L197 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-12-09 19:57:32,789 WARN L197 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-12-09 19:57:36,400 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-12-09 19:57:36,523 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-12-09 19:57:36,640 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-12-09 19:57:36,758 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-12-09 19:57:36,871 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-12-09 19:57:36,982 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-09 19:57:37,093 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-09 19:57:37,244 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-12-09 19:57:37,376 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-12-09 19:57:37,506 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-09 19:57:37,636 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-09 19:57:37,776 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-12-09 19:57:37,928 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-12-09 19:57:38,090 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-12-09 19:57:38,259 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-12-09 19:57:38,431 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-09 19:57:38,603 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-09 19:57:38,780 WARN L197 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-09 19:57:38,953 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-09 19:57:39,106 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-12-09 19:57:39,255 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-12-09 19:57:39,423 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-09 19:57:39,575 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-09 19:57:39,748 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-09 19:57:39,919 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-09 19:57:40,087 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-12-09 19:57:40,247 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-12-09 19:57:40,431 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-09 19:57:40,615 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-09 19:57:40,803 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-12-09 19:57:40,988 WARN L197 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-12-09 19:57:41,177 WARN L197 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-12-09 19:57:41,363 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-12-09 19:57:41,591 WARN L197 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-12-09 19:57:41,780 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-12-09 19:57:41,969 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-12-09 19:57:42,142 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-12-09 19:57:42,318 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-12-09 19:57:42,487 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-12-09 19:57:42,668 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-12-09 19:57:42,872 WARN L197 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-12-09 19:57:46,479 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-09 19:57:46,587 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-09 19:57:46,705 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-12-09 19:57:46,828 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-12-09 19:57:46,957 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-12-09 19:57:47,074 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-12-09 19:57:47,199 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-09 19:57:47,327 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-09 19:57:47,469 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-09 19:57:47,610 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-09 19:57:47,765 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-12-09 19:57:47,895 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-12-09 19:57:48,053 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-09 19:57:48,196 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-09 19:57:48,360 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-09 19:57:48,498 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-09 19:57:48,644 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-12-09 19:57:48,786 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-12-09 19:57:48,932 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-09 19:57:49,075 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-09 19:57:49,231 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-12-09 19:57:49,383 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-12-09 19:57:49,563 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-12-09 19:57:49,741 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-12-09 19:57:49,937 WARN L197 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-12-09 19:57:50,113 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-12-09 19:57:50,289 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-12-09 19:57:50,467 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-12-09 19:57:53,896 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-12-09 19:57:54,014 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-12-09 19:57:54,135 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-09 19:57:54,252 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-09 19:57:54,379 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-12-09 19:57:54,498 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-12-09 19:57:54,626 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-12-09 19:57:54,766 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-12-09 19:57:54,906 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-09 19:57:55,037 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-09 19:57:55,178 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-09 19:57:55,289 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-09 19:57:55,415 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-12-09 19:57:55,572 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-12-09 19:57:55,714 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-09 19:57:55,864 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-09 19:57:56,019 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-09 19:57:56,172 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-09 19:57:56,344 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-12-09 19:57:56,491 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-12-09 19:57:56,650 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-09 19:57:56,790 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-09 19:57:56,963 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-12-09 19:57:57,147 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-12-09 19:57:57,300 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-12-09 19:57:57,461 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-12-09 19:58:00,774 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-12-09 19:58:00,991 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-09 19:58:01,108 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-09 19:58:01,224 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-12-09 19:58:01,335 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-12-09 19:58:01,443 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-09 19:58:01,650 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-12-09 19:58:01,855 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-12-09 19:58:01,967 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-12-09 19:58:02,092 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-09 19:58:02,217 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-09 19:58:02,347 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-09 19:58:02,482 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-09 19:58:02,619 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-12-09 19:58:02,749 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-12-09 19:58:02,892 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-09 19:58:03,044 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-09 19:58:03,199 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-09 19:58:03,344 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-09 19:58:03,507 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-12-09 19:58:03,668 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-12-09 19:58:03,826 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-09 19:58:03,988 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-09 19:58:07,583 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-12-09 19:58:07,697 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-12-09 19:58:07,814 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-09 19:58:07,932 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-09 19:58:08,064 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-12-09 19:58:08,185 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-12-09 19:58:08,332 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-12-09 19:58:08,466 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-12-09 19:58:08,610 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-09 19:58:08,744 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-09 19:58:08,864 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-09 19:58:09,011 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-09 19:58:09,143 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-12-09 19:58:09,297 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-12-09 19:58:09,430 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-09 19:58:09,558 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-09 19:58:09,707 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-09 19:58:09,867 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-09 19:58:13,046 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-12-09 19:58:13,263 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-09 19:58:13,375 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-09 19:58:13,492 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-12-09 19:58:13,608 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-12-09 19:58:13,734 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-09 19:58:13,858 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-09 19:58:13,993 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-12-09 19:58:14,131 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-12-09 19:58:14,272 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-12-09 19:58:14,407 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-12-09 19:58:14,525 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-09 19:58:14,639 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-09 19:58:14,760 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-09 19:58:14,882 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-09 19:58:15,027 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-12-09 19:58:15,180 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-12-09 19:58:17,898 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-12-09 19:58:18,202 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-12-09 19:58:18,400 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-09 19:58:18,597 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-12-09 19:58:18,703 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-12-09 19:58:18,811 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-09 19:58:18,923 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-09 19:58:19,036 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-12-09 19:58:19,152 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-12-09 19:58:19,276 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-12-09 19:58:19,402 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-12-09 19:58:19,526 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-09 19:58:19,651 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-09 19:58:22,724 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-12-09 19:58:23,398 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-09 19:58:23,507 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-09 19:58:23,635 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-12-09 19:58:23,770 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-12-09 19:58:26,995 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-09 19:58:27,106 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-12-09 19:58:27,213 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-12-09 19:58:30,227 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-12-09 19:58:33,014 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-12-09 19:58:35,291 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-12-09 19:58:44,533 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 876 proven. 0 refuted. 0 times theorem prover too weak. 876 trivial. 0 not checked. [2020-12-09 19:58:44,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2020-12-09 19:58:44,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [54, 54] imperfect sequences [54] total 109 [2020-12-09 19:58:44,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330557991] [2020-12-09 19:58:44,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 57 states [2020-12-09 19:58:44,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 19:58:44,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2020-12-09 19:58:44,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=802, Invalid=10970, Unknown=0, NotChecked=0, Total=11772 [2020-12-09 19:58:44,537 INFO L87 Difference]: Start difference. First operand 84 states and 85 transitions. Second operand 57 states. [2020-12-09 19:58:45,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:58:45,541 INFO L93 Difference]: Finished difference Result 84 states and 85 transitions. [2020-12-09 19:58:45,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-12-09 19:58:45,543 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 154 [2020-12-09 19:58:45,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:58:45,544 INFO L225 Difference]: With dead ends: 84 [2020-12-09 19:58:45,544 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 19:58:45,548 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 230 SyntacticMatches, 47 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2865 ImplicationChecksByTransitivity, 25.0s TimeCoverageRelationStatistics Valid=802, Invalid=10970, Unknown=0, NotChecked=0, Total=11772 [2020-12-09 19:58:45,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 19:58:45,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 19:58:45,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 19:58:45,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 19:58:45,548 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 154 [2020-12-09 19:58:45,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:58:45,548 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 19:58:45,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has 57 states. [2020-12-09 19:58:45,548 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 19:58:45,549 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 19:58:45,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-12-09 19:58:45,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 19:58:45,803 INFO L262 CegarLoopResult]: For program point hanoiEXIT(lines 18 23) no Hoare annotation was computed. [2020-12-09 19:58:45,803 INFO L265 CegarLoopResult]: At program point hanoiENTRY(lines 18 23) the Hoare annotation is: true [2020-12-09 19:58:45,803 INFO L262 CegarLoopResult]: For program point hanoiFINAL(lines 18 23) no Hoare annotation was computed. [2020-12-09 19:58:45,803 INFO L258 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: (<= |hanoi_#in~n| hanoi_~n) [2020-12-09 19:58:45,803 INFO L262 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2020-12-09 19:58:45,803 INFO L262 CegarLoopResult]: For program point L19(lines 19 21) no Hoare annotation was computed. [2020-12-09 19:58:45,803 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 19:58:45,803 INFO L262 CegarLoopResult]: For program point L32(lines 32 36) no Hoare annotation was computed. [2020-12-09 19:58:45,804 INFO L258 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (<= ULTIMATE.start_main_~n~0 31) [2020-12-09 19:58:45,804 INFO L262 CegarLoopResult]: For program point L31-1(line 31) no Hoare annotation was computed. [2020-12-09 19:58:45,804 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 19:58:45,804 INFO L262 CegarLoopResult]: For program point L28(lines 28 30) no Hoare annotation was computed. [2020-12-09 19:58:45,804 INFO L265 CegarLoopResult]: At program point L26(lines 26 37) the Hoare annotation is: true [2020-12-09 19:58:45,804 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 35) no Hoare annotation was computed. [2020-12-09 19:58:45,804 INFO L262 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-12-09 19:58:45,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:58:45 BoogieIcfgContainer [2020-12-09 19:58:45,809 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 19:58:45,810 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 19:58:45,810 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 19:58:45,810 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 19:58:45,810 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:56:03" (3/4) ... [2020-12-09 19:58:45,812 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 19:58:45,815 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure hanoi [2020-12-09 19:58:45,818 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-12-09 19:58:45,818 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-09 19:58:45,818 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 19:58:45,818 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 19:58:45,837 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_631c855d-cf71-4f51-9659-f5bfafe8d266/bin/utaipan/witness.graphml [2020-12-09 19:58:45,837 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 19:58:45,837 INFO L168 Benchmark]: Toolchain (without parser) took 162707.39 ms. Allocated memory was 94.4 MB in the beginning and 167.8 MB in the end (delta: 73.4 MB). Free memory was 53.6 MB in the beginning and 109.7 MB in the end (delta: -56.2 MB). Peak memory consumption was 17.6 MB. Max. memory is 16.1 GB. [2020-12-09 19:58:45,837 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 94.4 MB. Free memory is still 69.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 19:58:45,838 INFO L168 Benchmark]: CACSL2BoogieTranslator took 178.49 ms. Allocated memory is still 94.4 MB. Free memory was 53.4 MB in the beginning and 68.3 MB in the end (delta: -14.9 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. [2020-12-09 19:58:45,838 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.91 ms. Allocated memory is still 94.4 MB. Free memory was 68.3 MB in the beginning and 67.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 19:58:45,838 INFO L168 Benchmark]: Boogie Preprocessor took 16.12 ms. Allocated memory is still 94.4 MB. Free memory was 67.0 MB in the beginning and 66.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 19:58:45,838 INFO L168 Benchmark]: RCFGBuilder took 232.00 ms. Allocated memory is still 94.4 MB. Free memory was 66.0 MB in the beginning and 66.1 MB in the end (delta: -140.2 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 19:58:45,838 INFO L168 Benchmark]: TraceAbstraction took 162219.74 ms. Allocated memory was 94.4 MB in the beginning and 167.8 MB in the end (delta: 73.4 MB). Free memory was 65.4 MB in the beginning and 112.9 MB in the end (delta: -47.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB. [2020-12-09 19:58:45,838 INFO L168 Benchmark]: Witness Printer took 27.21 ms. Allocated memory is still 167.8 MB. Free memory was 112.9 MB in the beginning and 109.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 19:58:45,839 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 94.4 MB. Free memory is still 69.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 178.49 ms. Allocated memory is still 94.4 MB. Free memory was 53.4 MB in the beginning and 68.3 MB in the end (delta: -14.9 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 27.91 ms. Allocated memory is still 94.4 MB. Free memory was 68.3 MB in the beginning and 67.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 16.12 ms. Allocated memory is still 94.4 MB. Free memory was 67.0 MB in the beginning and 66.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 232.00 ms. Allocated memory is still 94.4 MB. Free memory was 66.0 MB in the beginning and 66.1 MB in the end (delta: -140.2 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 162219.74 ms. Allocated memory was 94.4 MB in the beginning and 167.8 MB in the end (delta: 73.4 MB). Free memory was 65.4 MB in the beginning and 112.9 MB in the end (delta: -47.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB. * Witness Printer took 27.21 ms. Allocated memory is still 167.8 MB. Free memory was 112.9 MB in the beginning and 109.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 35]: 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: 26]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 162.1s, OverallIterations: 6, TraceHistogramMax: 25, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 124 SDtfs, 434 SDslu, 1577 SDs, 0 SdLazy, 2321 SolverSat, 726 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 903 GetRequests, 463 SyntacticMatches, 84 SemanticMatches, 356 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7936 ImplicationChecksByTransitivity, 33.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 6 PreInvPairs, 8 NumberOfFragments, 8 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 155.3s InterpolantComputationTime, 662 NumberOfCodeBlocks, 662 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 972 ConstructedInterpolants, 0 QuantifiedInterpolants, 1069422 SizeOfPredicates, 41 NumberOfNonLiveVariables, 914 ConjunctsInSsa, 169 ConjunctsInUnsatCore, 16 InterpolantComputations, 3 PerfectInterpolantSequences, 5078/7032 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...