./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label47.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2938d917-052a-4d7e-bf5f-f6d61c668a6e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2938d917-052a-4d7e-bf5f-f6d61c668a6e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2938d917-052a-4d7e-bf5f-f6d61c668a6e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2938d917-052a-4d7e-bf5f-f6d61c668a6e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label47.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2938d917-052a-4d7e-bf5f-f6d61c668a6e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2938d917-052a-4d7e-bf5f-f6d61c668a6e/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 263f5bcc0dd18a6a1141604b5838ae66dccd2a0e .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 05:27:24,451 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 05:27:24,453 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 05:27:24,465 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 05:27:24,465 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 05:27:24,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 05:27:24,468 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 05:27:24,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 05:27:24,472 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 05:27:24,473 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 05:27:24,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 05:27:24,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 05:27:24,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 05:27:24,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 05:27:24,477 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 05:27:24,478 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 05:27:24,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 05:27:24,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 05:27:24,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 05:27:24,483 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 05:27:24,485 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 05:27:24,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 05:27:24,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 05:27:24,488 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 05:27:24,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 05:27:24,491 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 05:27:24,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 05:27:24,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 05:27:24,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 05:27:24,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 05:27:24,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 05:27:24,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 05:27:24,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 05:27:24,496 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 05:27:24,497 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 05:27:24,497 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 05:27:24,498 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 05:27:24,498 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 05:27:24,498 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 05:27:24,500 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 05:27:24,500 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 05:27:24,501 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2938d917-052a-4d7e-bf5f-f6d61c668a6e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 05:27:24,515 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 05:27:24,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 05:27:24,516 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 05:27:24,516 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 05:27:24,517 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 05:27:24,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 05:27:24,517 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 05:27:24,517 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 05:27:24,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 05:27:24,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 05:27:24,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 05:27:24,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 05:27:24,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 05:27:24,519 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 05:27:24,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 05:27:24,519 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 05:27:24,519 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 05:27:24,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 05:27:24,520 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 05:27:24,520 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 05:27:24,520 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 05:27:24,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 05:27:24,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 05:27:24,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 05:27:24,521 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 05:27:24,521 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 05:27:24,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 05:27:24,522 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 05:27:24,522 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_2938d917-052a-4d7e-bf5f-f6d61c668a6e/bin/uautomizer 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(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer 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 -> 263f5bcc0dd18a6a1141604b5838ae66dccd2a0e [2019-11-20 05:27:24,676 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 05:27:24,687 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 05:27:24,689 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 05:27:24,691 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 05:27:24,691 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 05:27:24,692 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2938d917-052a-4d7e-bf5f-f6d61c668a6e/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem14_label47.c [2019-11-20 05:27:24,750 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2938d917-052a-4d7e-bf5f-f6d61c668a6e/bin/uautomizer/data/bf43f73b9/47715db17e644f9b91ff4ec11f7b3eab/FLAGb9c5e3d4f [2019-11-20 05:27:25,288 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 05:27:25,289 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2938d917-052a-4d7e-bf5f-f6d61c668a6e/sv-benchmarks/c/eca-rers2012/Problem14_label47.c [2019-11-20 05:27:25,324 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2938d917-052a-4d7e-bf5f-f6d61c668a6e/bin/uautomizer/data/bf43f73b9/47715db17e644f9b91ff4ec11f7b3eab/FLAGb9c5e3d4f [2019-11-20 05:27:25,716 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2938d917-052a-4d7e-bf5f-f6d61c668a6e/bin/uautomizer/data/bf43f73b9/47715db17e644f9b91ff4ec11f7b3eab [2019-11-20 05:27:25,718 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 05:27:25,719 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 05:27:25,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 05:27:25,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 05:27:25,724 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 05:27:25,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:27:25" (1/1) ... [2019-11-20 05:27:25,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d898254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:27:25, skipping insertion in model container [2019-11-20 05:27:25,728 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:27:25" (1/1) ... [2019-11-20 05:27:25,735 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 05:27:25,804 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 05:27:26,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:27:26,253 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 05:27:26,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:27:26,434 INFO L192 MainTranslator]: Completed translation [2019-11-20 05:27:26,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:27:26 WrapperNode [2019-11-20 05:27:26,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 05:27:26,437 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 05:27:26,437 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 05:27:26,437 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 05:27:26,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:27:26" (1/1) ... [2019-11-20 05:27:26,468 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:27:26" (1/1) ... [2019-11-20 05:27:26,552 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 05:27:26,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 05:27:26,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 05:27:26,554 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 05:27:26,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:27:26" (1/1) ... [2019-11-20 05:27:26,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:27:26" (1/1) ... [2019-11-20 05:27:26,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:27:26" (1/1) ... [2019-11-20 05:27:26,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:27:26" (1/1) ... [2019-11-20 05:27:26,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:27:26" (1/1) ... [2019-11-20 05:27:26,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:27:26" (1/1) ... [2019-11-20 05:27:26,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:27:26" (1/1) ... [2019-11-20 05:27:26,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 05:27:26,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 05:27:26,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 05:27:26,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 05:27:26,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:27:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2938d917-052a-4d7e-bf5f-f6d61c668a6e/bin/uautomizer/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 [2019-11-20 05:27:26,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 05:27:26,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 05:27:28,228 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 05:27:28,228 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 05:27:28,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:27:28 BoogieIcfgContainer [2019-11-20 05:27:28,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 05:27:28,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 05:27:28,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 05:27:28,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 05:27:28,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:27:25" (1/3) ... [2019-11-20 05:27:28,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@443deee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:27:28, skipping insertion in model container [2019-11-20 05:27:28,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:27:26" (2/3) ... [2019-11-20 05:27:28,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@443deee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:27:28, skipping insertion in model container [2019-11-20 05:27:28,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:27:28" (3/3) ... [2019-11-20 05:27:28,243 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label47.c [2019-11-20 05:27:28,254 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 05:27:28,262 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 05:27:28,274 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 05:27:28,316 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 05:27:28,316 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 05:27:28,316 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 05:27:28,317 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 05:27:28,317 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 05:27:28,317 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 05:27:28,317 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 05:27:28,318 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 05:27:28,341 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2019-11-20 05:27:28,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-20 05:27:28,350 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:27:28,351 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:27:28,352 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:27:28,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:27:28,358 INFO L82 PathProgramCache]: Analyzing trace with hash 2113343065, now seen corresponding path program 1 times [2019-11-20 05:27:28,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:27:28,367 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578384863] [2019-11-20 05:27:28,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:27:28,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:27:28,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:27:28,612 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578384863] [2019-11-20 05:27:28,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:27:28,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 05:27:28,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857879526] [2019-11-20 05:27:28,619 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 05:27:28,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:27:28,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 05:27:28,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 05:27:28,634 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 4 states. [2019-11-20 05:27:30,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:27:30,507 INFO L93 Difference]: Finished difference Result 850 states and 1558 transitions. [2019-11-20 05:27:30,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 05:27:30,509 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2019-11-20 05:27:30,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:27:30,539 INFO L225 Difference]: With dead ends: 850 [2019-11-20 05:27:30,539 INFO L226 Difference]: Without dead ends: 538 [2019-11-20 05:27:30,545 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 05:27:30,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-11-20 05:27:30,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-11-20 05:27:30,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-11-20 05:27:30,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 796 transitions. [2019-11-20 05:27:30,661 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 796 transitions. Word has length 33 [2019-11-20 05:27:30,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:27:30,661 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 796 transitions. [2019-11-20 05:27:30,661 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 05:27:30,662 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 796 transitions. [2019-11-20 05:27:30,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-11-20 05:27:30,667 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:27:30,668 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:27:30,668 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:27:30,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:27:30,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1915270461, now seen corresponding path program 1 times [2019-11-20 05:27:30,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:27:30,670 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498175458] [2019-11-20 05:27:30,670 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:27:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:27:30,908 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:27:30,908 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498175458] [2019-11-20 05:27:30,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:27:30,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 05:27:30,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450154335] [2019-11-20 05:27:30,912 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 05:27:30,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:27:30,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 05:27:30,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 05:27:30,914 INFO L87 Difference]: Start difference. First operand 538 states and 796 transitions. Second operand 4 states. [2019-11-20 05:27:32,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:27:32,314 INFO L93 Difference]: Finished difference Result 2142 states and 3176 transitions. [2019-11-20 05:27:32,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 05:27:32,314 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 108 [2019-11-20 05:27:32,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:27:32,324 INFO L225 Difference]: With dead ends: 2142 [2019-11-20 05:27:32,325 INFO L226 Difference]: Without dead ends: 1606 [2019-11-20 05:27:32,330 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 05:27:32,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2019-11-20 05:27:32,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1428. [2019-11-20 05:27:32,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2019-11-20 05:27:32,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1939 transitions. [2019-11-20 05:27:32,384 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1939 transitions. Word has length 108 [2019-11-20 05:27:32,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:27:32,384 INFO L462 AbstractCegarLoop]: Abstraction has 1428 states and 1939 transitions. [2019-11-20 05:27:32,385 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 05:27:32,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1939 transitions. [2019-11-20 05:27:32,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-11-20 05:27:32,396 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:27:32,397 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:27:32,397 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:27:32,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:27:32,398 INFO L82 PathProgramCache]: Analyzing trace with hash 1105444071, now seen corresponding path program 1 times [2019-11-20 05:27:32,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:27:32,398 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47353602] [2019-11-20 05:27:32,398 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:27:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:27:32,577 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-11-20 05:27:32,578 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47353602] [2019-11-20 05:27:32,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:27:32,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 05:27:32,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996139645] [2019-11-20 05:27:32,582 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 05:27:32,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:27:32,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 05:27:32,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 05:27:32,583 INFO L87 Difference]: Start difference. First operand 1428 states and 1939 transitions. Second operand 4 states. [2019-11-20 05:27:33,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:27:33,869 INFO L93 Difference]: Finished difference Result 4634 states and 6198 transitions. [2019-11-20 05:27:33,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 05:27:33,869 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 209 [2019-11-20 05:27:33,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:27:33,889 INFO L225 Difference]: With dead ends: 4634 [2019-11-20 05:27:33,889 INFO L226 Difference]: Without dead ends: 3208 [2019-11-20 05:27:33,892 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 05:27:33,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2019-11-20 05:27:33,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3030. [2019-11-20 05:27:33,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2019-11-20 05:27:33,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3806 transitions. [2019-11-20 05:27:33,965 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3806 transitions. Word has length 209 [2019-11-20 05:27:33,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:27:33,966 INFO L462 AbstractCegarLoop]: Abstraction has 3030 states and 3806 transitions. [2019-11-20 05:27:33,966 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 05:27:33,966 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3806 transitions. [2019-11-20 05:27:33,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2019-11-20 05:27:33,972 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:27:33,972 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:27:33,972 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:27:33,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:27:33,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1622285307, now seen corresponding path program 1 times [2019-11-20 05:27:33,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:27:33,973 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544876519] [2019-11-20 05:27:33,973 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:27:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:27:34,243 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 134 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 05:27:34,243 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544876519] [2019-11-20 05:27:34,243 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229788920] [2019-11-20 05:27:34,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2938d917-052a-4d7e-bf5f-f6d61c668a6e/bin/uautomizer/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 [2019-11-20 05:27:34,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:27:34,332 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 05:27:34,345 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:27:34,428 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-11-20 05:27:34,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 05:27:34,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2019-11-20 05:27:34,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986711533] [2019-11-20 05:27:34,431 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 05:27:34,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:27:34,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 05:27:34,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 05:27:34,434 INFO L87 Difference]: Start difference. First operand 3030 states and 3806 transitions. Second operand 3 states. [2019-11-20 05:27:35,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:27:35,369 INFO L93 Difference]: Finished difference Result 5880 states and 7426 transitions. [2019-11-20 05:27:35,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 05:27:35,371 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 221 [2019-11-20 05:27:35,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:27:35,389 INFO L225 Difference]: With dead ends: 5880 [2019-11-20 05:27:35,390 INFO L226 Difference]: Without dead ends: 3030 [2019-11-20 05:27:35,393 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 220 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 05:27:35,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2019-11-20 05:27:35,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 3030. [2019-11-20 05:27:35,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2019-11-20 05:27:35,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3661 transitions. [2019-11-20 05:27:35,470 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3661 transitions. Word has length 221 [2019-11-20 05:27:35,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:27:35,472 INFO L462 AbstractCegarLoop]: Abstraction has 3030 states and 3661 transitions. [2019-11-20 05:27:35,473 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 05:27:35,473 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3661 transitions. [2019-11-20 05:27:35,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2019-11-20 05:27:35,479 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:27:35,480 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:27:35,684 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:27:35,684 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:27:35,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:27:35,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1634422510, now seen corresponding path program 1 times [2019-11-20 05:27:35,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:27:35,686 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138020835] [2019-11-20 05:27:35,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:27:35,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:27:36,054 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 238 proven. 4 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2019-11-20 05:27:36,054 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138020835] [2019-11-20 05:27:36,055 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388771228] [2019-11-20 05:27:36,055 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2938d917-052a-4d7e-bf5f-f6d61c668a6e/bin/uautomizer/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 [2019-11-20 05:27:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:27:36,159 INFO L255 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 05:27:36,178 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:27:36,383 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2019-11-20 05:27:36,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 05:27:36,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2019-11-20 05:27:36,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115535955] [2019-11-20 05:27:36,384 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 05:27:36,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:27:36,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 05:27:36,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-20 05:27:36,385 INFO L87 Difference]: Start difference. First operand 3030 states and 3661 transitions. Second operand 3 states. [2019-11-20 05:27:37,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:27:37,150 INFO L93 Difference]: Finished difference Result 6770 states and 8231 transitions. [2019-11-20 05:27:37,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 05:27:37,151 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 297 [2019-11-20 05:27:37,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:27:37,172 INFO L225 Difference]: With dead ends: 6770 [2019-11-20 05:27:37,172 INFO L226 Difference]: Without dead ends: 3742 [2019-11-20 05:27:37,177 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 296 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-20 05:27:37,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2019-11-20 05:27:37,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3030. [2019-11-20 05:27:37,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2019-11-20 05:27:37,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3621 transitions. [2019-11-20 05:27:37,250 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3621 transitions. Word has length 297 [2019-11-20 05:27:37,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:27:37,251 INFO L462 AbstractCegarLoop]: Abstraction has 3030 states and 3621 transitions. [2019-11-20 05:27:37,251 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 05:27:37,252 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3621 transitions. [2019-11-20 05:27:37,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2019-11-20 05:27:37,259 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:27:37,260 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:27:37,472 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:27:37,472 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:27:37,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:27:37,473 INFO L82 PathProgramCache]: Analyzing trace with hash 578704993, now seen corresponding path program 1 times [2019-11-20 05:27:37,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:27:37,474 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329410238] [2019-11-20 05:27:37,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:27:37,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:27:37,746 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 242 proven. 4 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2019-11-20 05:27:37,747 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329410238] [2019-11-20 05:27:37,747 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549412393] [2019-11-20 05:27:37,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2938d917-052a-4d7e-bf5f-f6d61c668a6e/bin/uautomizer/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 [2019-11-20 05:27:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:27:37,842 INFO L255 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 05:27:37,847 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:27:38,015 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2019-11-20 05:27:38,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 05:27:38,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2019-11-20 05:27:38,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574852953] [2019-11-20 05:27:38,017 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 05:27:38,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:27:38,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 05:27:38,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-11-20 05:27:38,018 INFO L87 Difference]: Start difference. First operand 3030 states and 3621 transitions. Second operand 4 states. [2019-11-20 05:27:38,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:27:38,737 INFO L93 Difference]: Finished difference Result 6087 states and 7269 transitions. [2019-11-20 05:27:38,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 05:27:38,742 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 328 [2019-11-20 05:27:38,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:27:38,758 INFO L225 Difference]: With dead ends: 6087 [2019-11-20 05:27:38,759 INFO L226 Difference]: Without dead ends: 3208 [2019-11-20 05:27:38,763 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 327 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-11-20 05:27:38,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2019-11-20 05:27:38,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3030. [2019-11-20 05:27:38,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2019-11-20 05:27:38,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3281 transitions. [2019-11-20 05:27:38,827 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3281 transitions. Word has length 328 [2019-11-20 05:27:38,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:27:38,836 INFO L462 AbstractCegarLoop]: Abstraction has 3030 states and 3281 transitions. [2019-11-20 05:27:38,837 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 05:27:38,837 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3281 transitions. [2019-11-20 05:27:38,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2019-11-20 05:27:38,848 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:27:38,848 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:27:39,052 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:27:39,052 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:27:39,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:27:39,053 INFO L82 PathProgramCache]: Analyzing trace with hash 199018323, now seen corresponding path program 1 times [2019-11-20 05:27:39,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:27:39,053 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838037462] [2019-11-20 05:27:39,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:27:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:27:39,936 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 412 proven. 65 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2019-11-20 05:27:39,937 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838037462] [2019-11-20 05:27:39,937 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14538663] [2019-11-20 05:27:39,938 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2938d917-052a-4d7e-bf5f-f6d61c668a6e/bin/uautomizer/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 [2019-11-20 05:27:40,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:27:40,069 INFO L255 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 05:27:40,075 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:27:40,444 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 490 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2019-11-20 05:27:40,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 05:27:40,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2019-11-20 05:27:40,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81623330] [2019-11-20 05:27:40,446 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 05:27:40,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:27:40,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 05:27:40,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2019-11-20 05:27:40,447 INFO L87 Difference]: Start difference. First operand 3030 states and 3281 transitions. Second operand 7 states. [2019-11-20 05:27:41,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:27:41,170 INFO L93 Difference]: Finished difference Result 6108 states and 6615 transitions. [2019-11-20 05:27:41,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 05:27:41,171 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 423 [2019-11-20 05:27:41,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:27:41,184 INFO L225 Difference]: With dead ends: 6108 [2019-11-20 05:27:41,184 INFO L226 Difference]: Without dead ends: 3208 [2019-11-20 05:27:41,187 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 418 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2019-11-20 05:27:41,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2019-11-20 05:27:41,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3030. [2019-11-20 05:27:41,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2019-11-20 05:27:41,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3226 transitions. [2019-11-20 05:27:41,245 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3226 transitions. Word has length 423 [2019-11-20 05:27:41,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:27:41,245 INFO L462 AbstractCegarLoop]: Abstraction has 3030 states and 3226 transitions. [2019-11-20 05:27:41,246 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 05:27:41,246 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3226 transitions. [2019-11-20 05:27:41,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2019-11-20 05:27:41,262 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:27:41,263 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:27:41,467 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:27:41,467 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:27:41,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:27:41,468 INFO L82 PathProgramCache]: Analyzing trace with hash -2051042170, now seen corresponding path program 1 times [2019-11-20 05:27:41,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:27:41,468 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032770641] [2019-11-20 05:27:41,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:27:41,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:27:42,444 INFO L134 CoverageAnalysis]: Checked inductivity of 781 backedges. 608 proven. 4 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2019-11-20 05:27:42,444 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032770641] [2019-11-20 05:27:42,444 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444097382] [2019-11-20 05:27:42,445 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2938d917-052a-4d7e-bf5f-f6d61c668a6e/bin/uautomizer/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 [2019-11-20 05:27:42,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:27:42,589 INFO L255 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 05:27:42,599 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:27:42,636 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:27:43,076 INFO L134 CoverageAnalysis]: Checked inductivity of 781 backedges. 589 proven. 23 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2019-11-20 05:27:43,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:27:43,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2019-11-20 05:27:43,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198041930] [2019-11-20 05:27:43,078 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 05:27:43,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:27:43,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 05:27:43,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-11-20 05:27:43,079 INFO L87 Difference]: Start difference. First operand 3030 states and 3226 transitions. Second operand 8 states. [2019-11-20 05:27:44,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:27:44,501 INFO L93 Difference]: Finished difference Result 6284 states and 6683 transitions. [2019-11-20 05:27:44,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-20 05:27:44,503 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 550 [2019-11-20 05:27:44,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:27:44,518 INFO L225 Difference]: With dead ends: 6284 [2019-11-20 05:27:44,518 INFO L226 Difference]: Without dead ends: 3434 [2019-11-20 05:27:44,521 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 547 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2019-11-20 05:27:44,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3434 states. [2019-11-20 05:27:44,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3434 to 3030. [2019-11-20 05:27:44,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2019-11-20 05:27:44,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3224 transitions. [2019-11-20 05:27:44,575 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3224 transitions. Word has length 550 [2019-11-20 05:27:44,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:27:44,576 INFO L462 AbstractCegarLoop]: Abstraction has 3030 states and 3224 transitions. [2019-11-20 05:27:44,576 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 05:27:44,576 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3224 transitions. [2019-11-20 05:27:44,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 769 [2019-11-20 05:27:44,584 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:27:44,585 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:27:44,788 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:27:44,788 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:27:44,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:27:44,788 INFO L82 PathProgramCache]: Analyzing trace with hash -289671534, now seen corresponding path program 1 times [2019-11-20 05:27:44,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:27:44,789 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448123684] [2019-11-20 05:27:44,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:27:44,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:27:46,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 1322 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2019-11-20 05:27:46,125 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448123684] [2019-11-20 05:27:46,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:27:46,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 05:27:46,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948845837] [2019-11-20 05:27:46,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 05:27:46,126 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:27:46,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 05:27:46,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-11-20 05:27:46,127 INFO L87 Difference]: Start difference. First operand 3030 states and 3224 transitions. Second operand 8 states. [2019-11-20 05:27:47,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:27:47,421 INFO L93 Difference]: Finished difference Result 5886 states and 6273 transitions. [2019-11-20 05:27:47,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 05:27:47,422 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 768 [2019-11-20 05:27:47,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:27:47,437 INFO L225 Difference]: With dead ends: 5886 [2019-11-20 05:27:47,437 INFO L226 Difference]: Without dead ends: 3036 [2019-11-20 05:27:47,440 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2019-11-20 05:27:47,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3036 states. [2019-11-20 05:27:47,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3036 to 3030. [2019-11-20 05:27:47,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2019-11-20 05:27:47,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3219 transitions. [2019-11-20 05:27:47,490 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3219 transitions. Word has length 768 [2019-11-20 05:27:47,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:27:47,493 INFO L462 AbstractCegarLoop]: Abstraction has 3030 states and 3219 transitions. [2019-11-20 05:27:47,493 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 05:27:47,493 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3219 transitions. [2019-11-20 05:27:47,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 795 [2019-11-20 05:27:47,501 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:27:47,503 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:27:47,503 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:27:47,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:27:47,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1021218381, now seen corresponding path program 1 times [2019-11-20 05:27:47,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:27:47,504 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389037683] [2019-11-20 05:27:47,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:27:47,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:27:48,267 INFO L134 CoverageAnalysis]: Checked inductivity of 1831 backedges. 1331 proven. 155 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2019-11-20 05:27:48,267 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389037683] [2019-11-20 05:27:48,267 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1938756361] [2019-11-20 05:27:48,267 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2938d917-052a-4d7e-bf5f-f6d61c668a6e/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:27:48,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:27:48,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 973 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 05:27:48,480 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:27:48,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1831 backedges. 716 proven. 0 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2019-11-20 05:27:48,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 05:27:48,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2019-11-20 05:27:48,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441442294] [2019-11-20 05:27:48,875 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 05:27:48,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:27:48,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 05:27:48,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-20 05:27:48,875 INFO L87 Difference]: Start difference. First operand 3030 states and 3219 transitions. Second operand 3 states. [2019-11-20 05:27:49,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:27:49,405 INFO L93 Difference]: Finished difference Result 6770 states and 7221 transitions. [2019-11-20 05:27:49,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 05:27:49,406 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 794 [2019-11-20 05:27:49,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:27:49,435 INFO L225 Difference]: With dead ends: 6770 [2019-11-20 05:27:49,441 INFO L226 Difference]: Without dead ends: 3920 [2019-11-20 05:27:49,445 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 799 GetRequests, 795 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-20 05:27:49,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2019-11-20 05:27:49,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3386. [2019-11-20 05:27:49,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3386 states. [2019-11-20 05:27:49,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3613 transitions. [2019-11-20 05:27:49,495 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3613 transitions. Word has length 794 [2019-11-20 05:27:49,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:27:49,496 INFO L462 AbstractCegarLoop]: Abstraction has 3386 states and 3613 transitions. [2019-11-20 05:27:49,496 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 05:27:49,497 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3613 transitions. [2019-11-20 05:27:49,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 859 [2019-11-20 05:27:49,511 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:27:49,512 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:27:49,718 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:27:49,718 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:27:49,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:27:49,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1649677907, now seen corresponding path program 1 times [2019-11-20 05:27:49,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:27:49,719 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142806299] [2019-11-20 05:27:49,719 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:27:49,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:27:50,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1949 backedges. 1449 proven. 155 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2019-11-20 05:27:50,711 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142806299] [2019-11-20 05:27:50,712 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613972542] [2019-11-20 05:27:50,712 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2938d917-052a-4d7e-bf5f-f6d61c668a6e/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:27:50,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:27:50,956 INFO L255 TraceCheckSpWp]: Trace formula consists of 1035 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 05:27:50,969 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:27:51,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1949 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 1764 trivial. 0 not checked. [2019-11-20 05:27:51,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 05:27:51,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2019-11-20 05:27:51,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031600094] [2019-11-20 05:27:51,444 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 05:27:51,452 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:27:51,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 05:27:51,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-20 05:27:51,456 INFO L87 Difference]: Start difference. First operand 3386 states and 3613 transitions. Second operand 3 states. [2019-11-20 05:27:52,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:27:52,158 INFO L93 Difference]: Finished difference Result 7124 states and 7626 transitions. [2019-11-20 05:27:52,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 05:27:52,158 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 858 [2019-11-20 05:27:52,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:27:52,159 INFO L225 Difference]: With dead ends: 7124 [2019-11-20 05:27:52,160 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 05:27:52,164 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 863 GetRequests, 859 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-20 05:27:52,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 05:27:52,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 05:27:52,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 05:27:52,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 05:27:52,165 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 858 [2019-11-20 05:27:52,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:27:52,165 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 05:27:52,166 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 05:27:52,166 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 05:27:52,166 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 05:27:52,367 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:27:52,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 05:27:52,675 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 27 [2019-11-20 05:27:52,803 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 27 [2019-11-20 05:27:52,806 INFO L444 ceAbstractionStarter]: For program point L432(lines 432 870) no Hoare annotation was computed. [2019-11-20 05:27:52,806 INFO L444 ceAbstractionStarter]: For program point L366(lines 366 870) no Hoare annotation was computed. [2019-11-20 05:27:52,806 INFO L444 ceAbstractionStarter]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,806 INFO L444 ceAbstractionStarter]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,807 INFO L444 ceAbstractionStarter]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,807 INFO L444 ceAbstractionStarter]: For program point L235(lines 235 870) no Hoare annotation was computed. [2019-11-20 05:27:52,807 INFO L444 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2019-11-20 05:27:52,807 INFO L444 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2019-11-20 05:27:52,807 INFO L444 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2019-11-20 05:27:52,807 INFO L444 ceAbstractionStarter]: For program point L764(lines 764 870) no Hoare annotation was computed. [2019-11-20 05:27:52,807 INFO L444 ceAbstractionStarter]: For program point L632(lines 632 870) no Hoare annotation was computed. [2019-11-20 05:27:52,807 INFO L444 ceAbstractionStarter]: For program point L500(lines 500 870) no Hoare annotation was computed. [2019-11-20 05:27:52,807 INFO L444 ceAbstractionStarter]: For program point L831(lines 831 870) no Hoare annotation was computed. [2019-11-20 05:27:52,807 INFO L444 ceAbstractionStarter]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,807 INFO L444 ceAbstractionStarter]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,808 INFO L444 ceAbstractionStarter]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,808 INFO L444 ceAbstractionStarter]: For program point L700(lines 700 870) no Hoare annotation was computed. [2019-11-20 05:27:52,808 INFO L444 ceAbstractionStarter]: For program point L568(lines 568 870) no Hoare annotation was computed. [2019-11-20 05:27:52,808 INFO L444 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2019-11-20 05:27:52,808 INFO L444 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2019-11-20 05:27:52,808 INFO L444 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2019-11-20 05:27:52,808 INFO L444 ceAbstractionStarter]: For program point L305(lines 305 870) no Hoare annotation was computed. [2019-11-20 05:27:52,808 INFO L444 ceAbstractionStarter]: For program point L438(lines 438 870) no Hoare annotation was computed. [2019-11-20 05:27:52,808 INFO L444 ceAbstractionStarter]: For program point L372(lines 372 870) no Hoare annotation was computed. [2019-11-20 05:27:52,809 INFO L444 ceAbstractionStarter]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,809 INFO L444 ceAbstractionStarter]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,809 INFO L444 ceAbstractionStarter]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,809 INFO L444 ceAbstractionStarter]: For program point L241(lines 241 870) no Hoare annotation was computed. [2019-11-20 05:27:52,809 INFO L444 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2019-11-20 05:27:52,809 INFO L444 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2019-11-20 05:27:52,809 INFO L444 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2019-11-20 05:27:52,809 INFO L444 ceAbstractionStarter]: For program point L638(lines 638 870) no Hoare annotation was computed. [2019-11-20 05:27:52,809 INFO L444 ceAbstractionStarter]: For program point L506(lines 506 870) no Hoare annotation was computed. [2019-11-20 05:27:52,810 INFO L444 ceAbstractionStarter]: For program point L837(lines 837 870) no Hoare annotation was computed. [2019-11-20 05:27:52,810 INFO L444 ceAbstractionStarter]: For program point L771(lines 771 870) no Hoare annotation was computed. [2019-11-20 05:27:52,810 INFO L444 ceAbstractionStarter]: For program point L573(lines 573 870) no Hoare annotation was computed. [2019-11-20 05:27:52,810 INFO L444 ceAbstractionStarter]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,810 INFO L444 ceAbstractionStarter]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,810 INFO L444 ceAbstractionStarter]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,810 INFO L444 ceAbstractionStarter]: For program point L706(lines 706 870) no Hoare annotation was computed. [2019-11-20 05:27:52,810 INFO L444 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2019-11-20 05:27:52,810 INFO L444 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2019-11-20 05:27:52,811 INFO L444 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2019-11-20 05:27:52,811 INFO L444 ceAbstractionStarter]: For program point L311(lines 311 870) no Hoare annotation was computed. [2019-11-20 05:27:52,811 INFO L444 ceAbstractionStarter]: For program point L444(lines 444 870) no Hoare annotation was computed. [2019-11-20 05:27:52,811 INFO L444 ceAbstractionStarter]: For program point L378(lines 378 870) no Hoare annotation was computed. [2019-11-20 05:27:52,811 INFO L444 ceAbstractionStarter]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,811 INFO L444 ceAbstractionStarter]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,811 INFO L444 ceAbstractionStarter]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,811 INFO L444 ceAbstractionStarter]: For program point L247(lines 247 870) no Hoare annotation was computed. [2019-11-20 05:27:52,811 INFO L444 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2019-11-20 05:27:52,812 INFO L444 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2019-11-20 05:27:52,812 INFO L444 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2019-11-20 05:27:52,812 INFO L444 ceAbstractionStarter]: For program point L842(lines 842 870) no Hoare annotation was computed. [2019-11-20 05:27:52,812 INFO L444 ceAbstractionStarter]: For program point L644(lines 644 870) no Hoare annotation was computed. [2019-11-20 05:27:52,812 INFO L444 ceAbstractionStarter]: For program point L512(lines 512 870) no Hoare annotation was computed. [2019-11-20 05:27:52,812 INFO L444 ceAbstractionStarter]: For program point L777(lines 777 870) no Hoare annotation was computed. [2019-11-20 05:27:52,812 INFO L444 ceAbstractionStarter]: For program point L579(lines 579 870) no Hoare annotation was computed. [2019-11-20 05:27:52,812 INFO L444 ceAbstractionStarter]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,812 INFO L444 ceAbstractionStarter]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,813 INFO L444 ceAbstractionStarter]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,813 INFO L444 ceAbstractionStarter]: For program point L712(lines 712 870) no Hoare annotation was computed. [2019-11-20 05:27:52,813 INFO L444 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2019-11-20 05:27:52,813 INFO L444 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2019-11-20 05:27:52,813 INFO L444 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2019-11-20 05:27:52,813 INFO L444 ceAbstractionStarter]: For program point L449(lines 449 870) no Hoare annotation was computed. [2019-11-20 05:27:52,813 INFO L444 ceAbstractionStarter]: For program point L317(lines 317 870) no Hoare annotation was computed. [2019-11-20 05:27:52,813 INFO L444 ceAbstractionStarter]: For program point L384(lines 384 870) no Hoare annotation was computed. [2019-11-20 05:27:52,813 INFO L444 ceAbstractionStarter]: For program point L252(lines 252 870) no Hoare annotation was computed. [2019-11-20 05:27:52,814 INFO L444 ceAbstractionStarter]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,814 INFO L444 ceAbstractionStarter]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,814 INFO L444 ceAbstractionStarter]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,814 INFO L444 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2019-11-20 05:27:52,814 INFO L444 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2019-11-20 05:27:52,814 INFO L444 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2019-11-20 05:27:52,814 INFO L444 ceAbstractionStarter]: For program point L848(lines 848 870) no Hoare annotation was computed. [2019-11-20 05:27:52,814 INFO L444 ceAbstractionStarter]: For program point L650(lines 650 870) no Hoare annotation was computed. [2019-11-20 05:27:52,814 INFO L444 ceAbstractionStarter]: For program point L518(lines 518 870) no Hoare annotation was computed. [2019-11-20 05:27:52,814 INFO L444 ceAbstractionStarter]: For program point L783(lines 783 870) no Hoare annotation was computed. [2019-11-20 05:27:52,815 INFO L444 ceAbstractionStarter]: For program point L585(lines 585 870) no Hoare annotation was computed. [2019-11-20 05:27:52,815 INFO L444 ceAbstractionStarter]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,815 INFO L444 ceAbstractionStarter]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,815 INFO L444 ceAbstractionStarter]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,815 INFO L444 ceAbstractionStarter]: For program point L718(lines 718 870) no Hoare annotation was computed. [2019-11-20 05:27:52,815 INFO L444 ceAbstractionStarter]: For program point L454(lines 454 870) no Hoare annotation was computed. [2019-11-20 05:27:52,815 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 05:27:52,815 INFO L444 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2019-11-20 05:27:52,815 INFO L444 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2019-11-20 05:27:52,815 INFO L444 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2019-11-20 05:27:52,816 INFO L444 ceAbstractionStarter]: For program point L323(lines 323 870) no Hoare annotation was computed. [2019-11-20 05:27:52,816 INFO L444 ceAbstractionStarter]: For program point L390(lines 390 870) no Hoare annotation was computed. [2019-11-20 05:27:52,816 INFO L444 ceAbstractionStarter]: For program point L258(lines 258 870) no Hoare annotation was computed. [2019-11-20 05:27:52,816 INFO L444 ceAbstractionStarter]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,816 INFO L444 ceAbstractionStarter]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,816 INFO L444 ceAbstractionStarter]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,816 INFO L444 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2019-11-20 05:27:52,816 INFO L444 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2019-11-20 05:27:52,816 INFO L444 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2019-11-20 05:27:52,817 INFO L444 ceAbstractionStarter]: For program point L854(lines 854 870) no Hoare annotation was computed. [2019-11-20 05:27:52,817 INFO L444 ceAbstractionStarter]: For program point L656(lines 656 870) no Hoare annotation was computed. [2019-11-20 05:27:52,817 INFO L444 ceAbstractionStarter]: For program point L524(lines 524 870) no Hoare annotation was computed. [2019-11-20 05:27:52,817 INFO L444 ceAbstractionStarter]: For program point L789(lines 789 870) no Hoare annotation was computed. [2019-11-20 05:27:52,817 INFO L444 ceAbstractionStarter]: For program point L591(lines 591 870) no Hoare annotation was computed. [2019-11-20 05:27:52,817 INFO L444 ceAbstractionStarter]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,817 INFO L444 ceAbstractionStarter]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,817 INFO L444 ceAbstractionStarter]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,817 INFO L444 ceAbstractionStarter]: For program point L724(lines 724 870) no Hoare annotation was computed. [2019-11-20 05:27:52,817 INFO L444 ceAbstractionStarter]: For program point L460(lines 460 870) no Hoare annotation was computed. [2019-11-20 05:27:52,818 INFO L444 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2019-11-20 05:27:52,818 INFO L444 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2019-11-20 05:27:52,818 INFO L444 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2019-11-20 05:27:52,820 INFO L444 ceAbstractionStarter]: For program point L329(lines 329 870) no Hoare annotation was computed. [2019-11-20 05:27:52,821 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 05:27:52,821 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 103) no Hoare annotation was computed. [2019-11-20 05:27:52,821 INFO L444 ceAbstractionStarter]: For program point L396(lines 396 870) no Hoare annotation was computed. [2019-11-20 05:27:52,821 INFO L444 ceAbstractionStarter]: For program point L264(lines 264 870) no Hoare annotation was computed. [2019-11-20 05:27:52,821 INFO L444 ceAbstractionStarter]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,822 INFO L444 ceAbstractionStarter]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,822 INFO L444 ceAbstractionStarter]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,822 INFO L444 ceAbstractionStarter]: For program point L859(lines 859 870) no Hoare annotation was computed. [2019-11-20 05:27:52,822 INFO L444 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2019-11-20 05:27:52,822 INFO L444 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2019-11-20 05:27:52,822 INFO L444 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2019-11-20 05:27:52,823 INFO L444 ceAbstractionStarter]: For program point L662(lines 662 870) no Hoare annotation was computed. [2019-11-20 05:27:52,823 INFO L444 ceAbstractionStarter]: For program point L530(lines 530 870) no Hoare annotation was computed. [2019-11-20 05:27:52,823 INFO L444 ceAbstractionStarter]: For program point L795(lines 795 870) no Hoare annotation was computed. [2019-11-20 05:27:52,823 INFO L444 ceAbstractionStarter]: For program point L597(lines 597 870) no Hoare annotation was computed. [2019-11-20 05:27:52,823 INFO L444 ceAbstractionStarter]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,823 INFO L444 ceAbstractionStarter]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,824 INFO L444 ceAbstractionStarter]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,824 INFO L444 ceAbstractionStarter]: For program point L730(lines 730 870) no Hoare annotation was computed. [2019-11-20 05:27:52,824 INFO L444 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2019-11-20 05:27:52,824 INFO L444 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2019-11-20 05:27:52,824 INFO L444 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2019-11-20 05:27:52,824 INFO L444 ceAbstractionStarter]: For program point L467(lines 467 870) no Hoare annotation was computed. [2019-11-20 05:27:52,825 INFO L444 ceAbstractionStarter]: For program point L335(lines 335 870) no Hoare annotation was computed. [2019-11-20 05:27:52,825 INFO L444 ceAbstractionStarter]: For program point L269(lines 269 870) no Hoare annotation was computed. [2019-11-20 05:27:52,825 INFO L444 ceAbstractionStarter]: For program point L402(lines 402 870) no Hoare annotation was computed. [2019-11-20 05:27:52,825 INFO L444 ceAbstractionStarter]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,825 INFO L444 ceAbstractionStarter]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,825 INFO L444 ceAbstractionStarter]: For program point L865(lines 865 870) no Hoare annotation was computed. [2019-11-20 05:27:52,826 INFO L444 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2019-11-20 05:27:52,826 INFO L444 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2019-11-20 05:27:52,826 INFO L444 ceAbstractionStarter]: For program point L668(lines 668 870) no Hoare annotation was computed. [2019-11-20 05:27:52,826 INFO L444 ceAbstractionStarter]: For program point L536(lines 536 870) no Hoare annotation was computed. [2019-11-20 05:27:52,826 INFO L444 ceAbstractionStarter]: For program point L801(lines 801 870) no Hoare annotation was computed. [2019-11-20 05:27:52,826 INFO L444 ceAbstractionStarter]: For program point L735(lines 735 870) no Hoare annotation was computed. [2019-11-20 05:27:52,826 INFO L444 ceAbstractionStarter]: For program point L603(lines 603 870) no Hoare annotation was computed. [2019-11-20 05:27:52,827 INFO L444 ceAbstractionStarter]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,827 INFO L444 ceAbstractionStarter]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,827 INFO L444 ceAbstractionStarter]: For program point L472(lines 472 870) no Hoare annotation was computed. [2019-11-20 05:27:52,827 INFO L444 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2019-11-20 05:27:52,827 INFO L444 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2019-11-20 05:27:52,827 INFO L444 ceAbstractionStarter]: For program point L341(lines 341 870) no Hoare annotation was computed. [2019-11-20 05:27:52,828 INFO L444 ceAbstractionStarter]: For program point L275(lines 275 870) no Hoare annotation was computed. [2019-11-20 05:27:52,828 INFO L444 ceAbstractionStarter]: For program point L408(lines 408 870) no Hoare annotation was computed. [2019-11-20 05:27:52,828 INFO L444 ceAbstractionStarter]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,828 INFO L444 ceAbstractionStarter]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,829 INFO L440 ceAbstractionStarter]: At program point L871(lines 20 872) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1))) (or (and (< 11 ~a12~0) .cse0) (and (not (= 5 ULTIMATE.start_calculate_output_~input)) (= 8 ~a15~0) .cse0 (< 0 (+ ~a12~0 43))) (<= ~a15~0 6) (and (not (= ~a21~0 9)) .cse0))) [2019-11-20 05:27:52,829 INFO L444 ceAbstractionStarter]: For program point L541(lines 541 870) no Hoare annotation was computed. [2019-11-20 05:27:52,829 INFO L444 ceAbstractionStarter]: For program point L211(lines 211 870) no Hoare annotation was computed. [2019-11-20 05:27:52,829 INFO L444 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2019-11-20 05:27:52,829 INFO L444 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2019-11-20 05:27:52,829 INFO L444 ceAbstractionStarter]: For program point L674(lines 674 870) no Hoare annotation was computed. [2019-11-20 05:27:52,829 INFO L444 ceAbstractionStarter]: For program point L807(lines 807 870) no Hoare annotation was computed. [2019-11-20 05:27:52,830 INFO L444 ceAbstractionStarter]: For program point L741(lines 741 870) no Hoare annotation was computed. [2019-11-20 05:27:52,830 INFO L444 ceAbstractionStarter]: For program point L609(lines 609 870) no Hoare annotation was computed. [2019-11-20 05:27:52,830 INFO L444 ceAbstractionStarter]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,830 INFO L444 ceAbstractionStarter]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,830 INFO L447 ceAbstractionStarter]: At program point L874(lines 874 890) the Hoare annotation is: true [2019-11-20 05:27:52,830 INFO L444 ceAbstractionStarter]: For program point L478(lines 478 870) no Hoare annotation was computed. [2019-11-20 05:27:52,831 INFO L444 ceAbstractionStarter]: For program point L280(lines 280 870) no Hoare annotation was computed. [2019-11-20 05:27:52,831 INFO L444 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2019-11-20 05:27:52,831 INFO L444 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2019-11-20 05:27:52,831 INFO L444 ceAbstractionStarter]: For program point L677(lines 677 870) no Hoare annotation was computed. [2019-11-20 05:27:52,831 INFO L444 ceAbstractionStarter]: For program point L347(lines 347 870) no Hoare annotation was computed. [2019-11-20 05:27:52,831 INFO L444 ceAbstractionStarter]: For program point L414(lines 414 870) no Hoare annotation was computed. [2019-11-20 05:27:52,832 INFO L444 ceAbstractionStarter]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,832 INFO L444 ceAbstractionStarter]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,832 INFO L444 ceAbstractionStarter]: For program point L547(lines 547 870) no Hoare annotation was computed. [2019-11-20 05:27:52,832 INFO L444 ceAbstractionStarter]: For program point L217(lines 217 870) no Hoare annotation was computed. [2019-11-20 05:27:52,832 INFO L444 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2019-11-20 05:27:52,832 INFO L444 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2019-11-20 05:27:52,832 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 05:27:52,833 INFO L444 ceAbstractionStarter]: For program point L747(lines 747 870) no Hoare annotation was computed. [2019-11-20 05:27:52,833 INFO L444 ceAbstractionStarter]: For program point L615(lines 615 870) no Hoare annotation was computed. [2019-11-20 05:27:52,833 INFO L444 ceAbstractionStarter]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,833 INFO L444 ceAbstractionStarter]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,833 INFO L444 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2019-11-20 05:27:52,833 INFO L444 ceAbstractionStarter]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,833 INFO L444 ceAbstractionStarter]: For program point L814(lines 814 870) no Hoare annotation was computed. [2019-11-20 05:27:52,835 INFO L440 ceAbstractionStarter]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1))) (or (and (< 11 ~a12~0) .cse0) (and (not (= 5 ULTIMATE.start_calculate_output_~input)) (= 8 ~a15~0) .cse0 (< 0 (+ ~a12~0 43))) (<= ~a15~0 6) (and (not (= ~a21~0 9)) .cse0))) [2019-11-20 05:27:52,835 INFO L444 ceAbstractionStarter]: For program point L484(lines 484 870) no Hoare annotation was computed. [2019-11-20 05:27:52,836 INFO L444 ceAbstractionStarter]: For program point L286(lines 286 870) no Hoare annotation was computed. [2019-11-20 05:27:52,836 INFO L444 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2019-11-20 05:27:52,836 INFO L444 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2019-11-20 05:27:52,836 INFO L444 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2019-11-20 05:27:52,836 INFO L444 ceAbstractionStarter]: For program point L683(lines 683 870) no Hoare annotation was computed. [2019-11-20 05:27:52,836 INFO L444 ceAbstractionStarter]: For program point L353(lines 353 870) no Hoare annotation was computed. [2019-11-20 05:27:52,837 INFO L444 ceAbstractionStarter]: For program point L552(lines 552 870) no Hoare annotation was computed. [2019-11-20 05:27:52,837 INFO L444 ceAbstractionStarter]: For program point L420(lines 420 870) no Hoare annotation was computed. [2019-11-20 05:27:52,837 INFO L444 ceAbstractionStarter]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,837 INFO L444 ceAbstractionStarter]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,837 INFO L444 ceAbstractionStarter]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,837 INFO L444 ceAbstractionStarter]: For program point L223(lines 223 870) no Hoare annotation was computed. [2019-11-20 05:27:52,837 INFO L444 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2019-11-20 05:27:52,838 INFO L444 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2019-11-20 05:27:52,838 INFO L444 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2019-11-20 05:27:52,838 INFO L444 ceAbstractionStarter]: For program point L752(lines 752 870) no Hoare annotation was computed. [2019-11-20 05:27:52,838 INFO L444 ceAbstractionStarter]: For program point L885(line 885) no Hoare annotation was computed. [2019-11-20 05:27:52,838 INFO L444 ceAbstractionStarter]: For program point L819(lines 819 870) no Hoare annotation was computed. [2019-11-20 05:27:52,838 INFO L444 ceAbstractionStarter]: For program point L621(lines 621 870) no Hoare annotation was computed. [2019-11-20 05:27:52,838 INFO L444 ceAbstractionStarter]: For program point L555(lines 555 870) no Hoare annotation was computed. [2019-11-20 05:27:52,839 INFO L444 ceAbstractionStarter]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,839 INFO L444 ceAbstractionStarter]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,839 INFO L444 ceAbstractionStarter]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,839 INFO L444 ceAbstractionStarter]: For program point L688(lines 688 870) no Hoare annotation was computed. [2019-11-20 05:27:52,839 INFO L444 ceAbstractionStarter]: For program point L490(lines 490 870) no Hoare annotation was computed. [2019-11-20 05:27:52,839 INFO L444 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2019-11-20 05:27:52,839 INFO L444 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2019-11-20 05:27:52,840 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 05:27:52,840 INFO L444 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2019-11-20 05:27:52,840 INFO L444 ceAbstractionStarter]: For program point L359(lines 359 870) no Hoare annotation was computed. [2019-11-20 05:27:52,840 INFO L444 ceAbstractionStarter]: For program point L293(lines 293 870) no Hoare annotation was computed. [2019-11-20 05:27:52,840 INFO L444 ceAbstractionStarter]: For program point L426(lines 426 870) no Hoare annotation was computed. [2019-11-20 05:27:52,840 INFO L444 ceAbstractionStarter]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,840 INFO L444 ceAbstractionStarter]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,841 INFO L444 ceAbstractionStarter]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,841 INFO L444 ceAbstractionStarter]: For program point L229(lines 229 870) no Hoare annotation was computed. [2019-11-20 05:27:52,841 INFO L444 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2019-11-20 05:27:52,841 INFO L444 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2019-11-20 05:27:52,841 INFO L444 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2019-11-20 05:27:52,841 INFO L444 ceAbstractionStarter]: For program point L758(lines 758 870) no Hoare annotation was computed. [2019-11-20 05:27:52,841 INFO L444 ceAbstractionStarter]: For program point L626(lines 626 870) no Hoare annotation was computed. [2019-11-20 05:27:52,842 INFO L444 ceAbstractionStarter]: For program point L825(lines 825 870) no Hoare annotation was computed. [2019-11-20 05:27:52,842 INFO L444 ceAbstractionStarter]: For program point L561(lines 561 870) no Hoare annotation was computed. [2019-11-20 05:27:52,842 INFO L444 ceAbstractionStarter]: For program point L495(lines 495 870) no Hoare annotation was computed. [2019-11-20 05:27:52,842 INFO L444 ceAbstractionStarter]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,842 INFO L444 ceAbstractionStarter]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,842 INFO L444 ceAbstractionStarter]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 05:27:52,842 INFO L444 ceAbstractionStarter]: For program point L694(lines 694 870) no Hoare annotation was computed. [2019-11-20 05:27:52,843 INFO L444 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2019-11-20 05:27:52,843 INFO L444 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2019-11-20 05:27:52,843 INFO L444 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2019-11-20 05:27:52,843 INFO L444 ceAbstractionStarter]: For program point L299(lines 299 870) no Hoare annotation was computed. [2019-11-20 05:27:52,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:27:52 BoogieIcfgContainer [2019-11-20 05:27:52,872 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 05:27:52,873 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 05:27:52,873 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 05:27:52,873 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 05:27:52,874 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:27:28" (3/4) ... [2019-11-20 05:27:52,877 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 05:27:52,904 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-20 05:27:52,911 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 05:27:53,084 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2938d917-052a-4d7e-bf5f-f6d61c668a6e/bin/uautomizer/witness.graphml [2019-11-20 05:27:53,084 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 05:27:53,085 INFO L168 Benchmark]: Toolchain (without parser) took 27366.24 ms. Allocated memory was 1.0 GB in the beginning and 2.7 GB in the end (delta: 1.6 GB). Free memory was 940.7 MB in the beginning and 1.9 GB in the end (delta: -972.4 MB). Peak memory consumption was 668.6 MB. Max. memory is 11.5 GB. [2019-11-20 05:27:53,086 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:27:53,086 INFO L168 Benchmark]: CACSL2BoogieTranslator took 716.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -151.7 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-11-20 05:27:53,087 INFO L168 Benchmark]: Boogie Procedure Inliner took 116.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-20 05:27:53,087 INFO L168 Benchmark]: Boogie Preprocessor took 95.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 05:27:53,087 INFO L168 Benchmark]: RCFGBuilder took 1580.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 945.6 MB in the end (delta: 130.7 MB). Peak memory consumption was 130.7 MB. Max. memory is 11.5 GB. [2019-11-20 05:27:53,088 INFO L168 Benchmark]: TraceAbstraction took 24641.70 ms. Allocated memory was 1.2 GB in the beginning and 2.7 GB in the end (delta: 1.5 GB). Free memory was 945.6 MB in the beginning and 2.0 GB in the end (delta: -1.0 GB). Peak memory consumption was 500.2 MB. Max. memory is 11.5 GB. [2019-11-20 05:27:53,088 INFO L168 Benchmark]: Witness Printer took 211.60 ms. Allocated memory is still 2.7 GB. Free memory was 2.0 GB in the beginning and 1.9 GB in the end (delta: 46.9 MB). Peak memory consumption was 46.9 MB. Max. memory is 11.5 GB. [2019-11-20 05:27:53,090 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 716.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -151.7 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 116.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 95.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1580.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 945.6 MB in the end (delta: 130.7 MB). Peak memory consumption was 130.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 24641.70 ms. Allocated memory was 1.2 GB in the beginning and 2.7 GB in the end (delta: 1.5 GB). Free memory was 945.6 MB in the beginning and 2.0 GB in the end (delta: -1.0 GB). Peak memory consumption was 500.2 MB. Max. memory is 11.5 GB. * Witness Printer took 211.60 ms. Allocated memory is still 2.7 GB. Free memory was 2.0 GB in the beginning and 1.9 GB in the end (delta: 46.9 MB). Peak memory consumption was 46.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 103]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: (((11 < a12 && a24 == 1) || (((!(5 == input) && 8 == a15) && a24 == 1) && 0 < a12 + 43)) || a15 <= 6) || (!(a21 == 9) && a24 == 1) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (((11 < a12 && a24 == 1) || (((!(5 == input) && 8 == a15) && a24 == 1) && 0 < a12 + 43)) || a15 <= 6) || (!(a21 == 9) && a24 == 1) - InvariantResult [Line: 874]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Result: SAFE, OverallTime: 24.5s, OverallIterations: 11, TraceHistogramMax: 7, AutomataDifference: 11.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, HoareTripleCheckerStatistics: 1088 SDtfs, 3085 SDslu, 124 SDs, 0 SdLazy, 8860 SolverSat, 1342 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3525 GetRequests, 3466 SyntacticMatches, 6 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3386occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 2368 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 56 NumberOfFragments, 71 HoareAnnotationTreeSize, 3 FomulaSimplifications, 6922 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 838 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 8060 NumberOfCodeBlocks, 8060 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 8042 ConstructedInterpolants, 0 QuantifiedInterpolants, 14399456 SizeOfPredicates, 15 NumberOfNonLiveVariables, 4382 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 18 InterpolantComputations, 10 PerfectInterpolantSequences, 13601/14015 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...