./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label34.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_0b96677d-4856-4526-b2af-3ca6c1fc6b7c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0b96677d-4856-4526-b2af-3ca6c1fc6b7c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0b96677d-4856-4526-b2af-3ca6c1fc6b7c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0b96677d-4856-4526-b2af-3ca6c1fc6b7c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label34.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0b96677d-4856-4526-b2af-3ca6c1fc6b7c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0b96677d-4856-4526-b2af-3ca6c1fc6b7c/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 f01979d5da4d022026be8efd02bfc41090b6cbce ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 22:46:26,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:46:26,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:46:26,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:46:26,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:46:26,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:46:26,329 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:46:26,331 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:46:26,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:46:26,334 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:46:26,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:46:26,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:46:26,336 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:46:26,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:46:26,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:46:26,340 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:46:26,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:46:26,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:46:26,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:46:26,345 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:46:26,347 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:46:26,351 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:46:26,352 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:46:26,353 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:46:26,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:46:26,356 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:46:26,356 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:46:26,357 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:46:26,358 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:46:26,359 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:46:26,359 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:46:26,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:46:26,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:46:26,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:46:26,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:46:26,362 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:46:26,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:46:26,363 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:46:26,363 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:46:26,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:46:26,364 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:46:26,368 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0b96677d-4856-4526-b2af-3ca6c1fc6b7c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 22:46:26,389 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:46:26,389 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:46:26,391 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:46:26,391 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:46:26,391 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:46:26,391 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:46:26,391 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 22:46:26,392 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:46:26,392 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 22:46:26,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:46:26,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 22:46:26,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 22:46:26,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 22:46:26,393 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 22:46:26,394 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:46:26,394 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:46:26,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 22:46:26,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:46:26,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:46:26,394 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 22:46:26,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 22:46:26,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 22:46:26,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:46:26,395 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 22:46:26,395 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 22:46:26,396 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:46:26,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 22:46:26,396 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 22:46:26,396 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_0b96677d-4856-4526-b2af-3ca6c1fc6b7c/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 -> f01979d5da4d022026be8efd02bfc41090b6cbce [2019-11-19 22:46:26,588 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:46:26,605 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:46:26,609 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:46:26,610 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:46:26,610 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:46:26,611 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0b96677d-4856-4526-b2af-3ca6c1fc6b7c/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem01_label34.c [2019-11-19 22:46:26,676 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0b96677d-4856-4526-b2af-3ca6c1fc6b7c/bin/uautomizer/data/24586a43a/132df9e4c7c3444fa7e35eeeb07aba10/FLAG7eac1459f [2019-11-19 22:46:27,132 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:46:27,133 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0b96677d-4856-4526-b2af-3ca6c1fc6b7c/sv-benchmarks/c/eca-rers2012/Problem01_label34.c [2019-11-19 22:46:27,150 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0b96677d-4856-4526-b2af-3ca6c1fc6b7c/bin/uautomizer/data/24586a43a/132df9e4c7c3444fa7e35eeeb07aba10/FLAG7eac1459f [2019-11-19 22:46:27,520 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0b96677d-4856-4526-b2af-3ca6c1fc6b7c/bin/uautomizer/data/24586a43a/132df9e4c7c3444fa7e35eeeb07aba10 [2019-11-19 22:46:27,524 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:46:27,525 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:46:27,526 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:46:27,526 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:46:27,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:46:27,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:46:27" (1/1) ... [2019-11-19 22:46:27,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@525ee995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:46:27, skipping insertion in model container [2019-11-19 22:46:27,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:46:27" (1/1) ... [2019-11-19 22:46:27,546 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:46:27,610 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:46:28,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:46:28,021 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:46:28,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:46:28,165 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:46:28,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:46:28 WrapperNode [2019-11-19 22:46:28,166 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:46:28,167 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:46:28,167 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:46:28,167 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:46:28,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:46:28" (1/1) ... [2019-11-19 22:46:28,195 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:46:28" (1/1) ... [2019-11-19 22:46:28,257 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:46:28,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:46:28,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:46:28,258 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:46:28,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:46:28" (1/1) ... [2019-11-19 22:46:28,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:46:28" (1/1) ... [2019-11-19 22:46:28,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:46:28" (1/1) ... [2019-11-19 22:46:28,273 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:46:28" (1/1) ... [2019-11-19 22:46:28,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:46:28" (1/1) ... [2019-11-19 22:46:28,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:46:28" (1/1) ... [2019-11-19 22:46:28,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:46:28" (1/1) ... [2019-11-19 22:46:28,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:46:28,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:46:28,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:46:28,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:46:28,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:46:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b96677d-4856-4526-b2af-3ca6c1fc6b7c/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 [2019-11-19 22:46:28,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:46:28,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:46:29,640 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:46:29,640 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-19 22:46:29,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:46:29 BoogieIcfgContainer [2019-11-19 22:46:29,642 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:46:29,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 22:46:29,644 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 22:46:29,647 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 22:46:29,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:46:27" (1/3) ... [2019-11-19 22:46:29,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae81aec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:46:29, skipping insertion in model container [2019-11-19 22:46:29,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:46:28" (2/3) ... [2019-11-19 22:46:29,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae81aec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:46:29, skipping insertion in model container [2019-11-19 22:46:29,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:46:29" (3/3) ... [2019-11-19 22:46:29,650 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label34.c [2019-11-19 22:46:29,661 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 22:46:29,668 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 22:46:29,680 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 22:46:29,715 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 22:46:29,715 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 22:46:29,715 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 22:46:29,715 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:46:29,716 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:46:29,716 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 22:46:29,716 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:46:29,716 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 22:46:29,747 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2019-11-19 22:46:29,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-11-19 22:46:29,765 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:46:29,766 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:46:29,766 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:46:29,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:46:29,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1487053686, now seen corresponding path program 1 times [2019-11-19 22:46:29,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:46:29,783 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781084870] [2019-11-19 22:46:29,783 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:46:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:46:30,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:46:30,320 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781084870] [2019-11-19 22:46:30,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:46:30,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 22:46:30,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650317606] [2019-11-19 22:46:30,330 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 22:46:30,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:46:30,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 22:46:30,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-19 22:46:30,347 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 4 states. [2019-11-19 22:46:31,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:46:31,867 INFO L93 Difference]: Finished difference Result 662 states and 1178 transitions. [2019-11-19 22:46:31,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 22:46:31,869 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 105 [2019-11-19 22:46:31,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:46:31,888 INFO L225 Difference]: With dead ends: 662 [2019-11-19 22:46:31,888 INFO L226 Difference]: Without dead ends: 397 [2019-11-19 22:46:31,893 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 [2019-11-19 22:46:31,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2019-11-19 22:46:31,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2019-11-19 22:46:31,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2019-11-19 22:46:31,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 559 transitions. [2019-11-19 22:46:31,994 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 559 transitions. Word has length 105 [2019-11-19 22:46:31,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:46:31,995 INFO L462 AbstractCegarLoop]: Abstraction has 397 states and 559 transitions. [2019-11-19 22:46:31,995 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 22:46:31,995 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 559 transitions. [2019-11-19 22:46:32,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-11-19 22:46:32,003 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:46:32,005 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:46:32,005 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:46:32,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:46:32,005 INFO L82 PathProgramCache]: Analyzing trace with hash 2090027166, now seen corresponding path program 1 times [2019-11-19 22:46:32,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:46:32,006 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779445210] [2019-11-19 22:46:32,006 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:46:32,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:46:32,098 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:46:32,099 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779445210] [2019-11-19 22:46:32,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:46:32,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 22:46:32,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271040143] [2019-11-19 22:46:32,105 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 22:46:32,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:46:32,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 22:46:32,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-19 22:46:32,106 INFO L87 Difference]: Start difference. First operand 397 states and 559 transitions. Second operand 4 states. [2019-11-19 22:46:32,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:46:32,705 INFO L93 Difference]: Finished difference Result 1185 states and 1672 transitions. [2019-11-19 22:46:32,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 22:46:32,706 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 110 [2019-11-19 22:46:32,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:46:32,710 INFO L225 Difference]: With dead ends: 1185 [2019-11-19 22:46:32,710 INFO L226 Difference]: Without dead ends: 790 [2019-11-19 22:46:32,713 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 [2019-11-19 22:46:32,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2019-11-19 22:46:32,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2019-11-19 22:46:32,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2019-11-19 22:46:32,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1067 transitions. [2019-11-19 22:46:32,741 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1067 transitions. Word has length 110 [2019-11-19 22:46:32,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:46:32,742 INFO L462 AbstractCegarLoop]: Abstraction has 790 states and 1067 transitions. [2019-11-19 22:46:32,742 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 22:46:32,742 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1067 transitions. [2019-11-19 22:46:32,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-11-19 22:46:32,744 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:46:32,744 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:46:32,745 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:46:32,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:46:32,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1180375025, now seen corresponding path program 1 times [2019-11-19 22:46:32,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:46:32,746 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165323546] [2019-11-19 22:46:32,746 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:46:32,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:46:32,810 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-19 22:46:32,810 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165323546] [2019-11-19 22:46:32,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:46:32,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 22:46:32,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514603243] [2019-11-19 22:46:32,812 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 22:46:32,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:46:32,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 22:46:32,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:46:32,812 INFO L87 Difference]: Start difference. First operand 790 states and 1067 transitions. Second operand 3 states. [2019-11-19 22:46:33,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:46:33,358 INFO L93 Difference]: Finished difference Result 1971 states and 2688 transitions. [2019-11-19 22:46:33,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 22:46:33,359 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2019-11-19 22:46:33,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:46:33,367 INFO L225 Difference]: With dead ends: 1971 [2019-11-19 22:46:33,368 INFO L226 Difference]: Without dead ends: 1183 [2019-11-19 22:46:33,369 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:46:33,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2019-11-19 22:46:33,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 790. [2019-11-19 22:46:33,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2019-11-19 22:46:33,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1067 transitions. [2019-11-19 22:46:33,397 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1067 transitions. Word has length 117 [2019-11-19 22:46:33,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:46:33,398 INFO L462 AbstractCegarLoop]: Abstraction has 790 states and 1067 transitions. [2019-11-19 22:46:33,398 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 22:46:33,398 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1067 transitions. [2019-11-19 22:46:33,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-11-19 22:46:33,400 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:46:33,401 INFO L410 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:46:33,401 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:46:33,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:46:33,402 INFO L82 PathProgramCache]: Analyzing trace with hash 908956375, now seen corresponding path program 1 times [2019-11-19 22:46:33,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:46:33,402 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949529790] [2019-11-19 22:46:33,402 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:46:33,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:46:33,510 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:46:33,510 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949529790] [2019-11-19 22:46:33,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:46:33,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 22:46:33,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154876187] [2019-11-19 22:46:33,512 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 22:46:33,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:46:33,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 22:46:33,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 22:46:33,513 INFO L87 Difference]: Start difference. First operand 790 states and 1067 transitions. Second operand 4 states. [2019-11-19 22:46:34,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:46:34,188 INFO L93 Difference]: Finished difference Result 1714 states and 2292 transitions. [2019-11-19 22:46:34,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 22:46:34,188 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 120 [2019-11-19 22:46:34,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:46:34,195 INFO L225 Difference]: With dead ends: 1714 [2019-11-19 22:46:34,195 INFO L226 Difference]: Without dead ends: 926 [2019-11-19 22:46:34,198 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-19 22:46:34,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2019-11-19 22:46:34,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 921. [2019-11-19 22:46:34,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2019-11-19 22:46:34,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1204 transitions. [2019-11-19 22:46:34,237 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1204 transitions. Word has length 120 [2019-11-19 22:46:34,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:46:34,238 INFO L462 AbstractCegarLoop]: Abstraction has 921 states and 1204 transitions. [2019-11-19 22:46:34,238 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 22:46:34,238 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1204 transitions. [2019-11-19 22:46:34,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2019-11-19 22:46:34,243 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:46:34,243 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:46:34,243 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:46:34,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:46:34,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1523327247, now seen corresponding path program 1 times [2019-11-19 22:46:34,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:46:34,244 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814071649] [2019-11-19 22:46:34,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:46:34,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:46:34,358 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:46:34,358 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814071649] [2019-11-19 22:46:34,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:46:34,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 22:46:34,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241172581] [2019-11-19 22:46:34,360 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 22:46:34,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:46:34,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 22:46:34,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-19 22:46:34,360 INFO L87 Difference]: Start difference. First operand 921 states and 1204 transitions. Second operand 5 states. [2019-11-19 22:46:35,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:46:35,399 INFO L93 Difference]: Finished difference Result 2233 states and 2968 transitions. [2019-11-19 22:46:35,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 22:46:35,399 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2019-11-19 22:46:35,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:46:35,407 INFO L225 Difference]: With dead ends: 2233 [2019-11-19 22:46:35,407 INFO L226 Difference]: Without dead ends: 1445 [2019-11-19 22:46:35,409 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-19 22:46:35,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2019-11-19 22:46:35,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1445. [2019-11-19 22:46:35,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1445 states. [2019-11-19 22:46:35,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1806 transitions. [2019-11-19 22:46:35,440 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1806 transitions. Word has length 124 [2019-11-19 22:46:35,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:46:35,440 INFO L462 AbstractCegarLoop]: Abstraction has 1445 states and 1806 transitions. [2019-11-19 22:46:35,441 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 22:46:35,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1806 transitions. [2019-11-19 22:46:35,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-11-19 22:46:35,444 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:46:35,444 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:46:35,444 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:46:35,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:46:35,445 INFO L82 PathProgramCache]: Analyzing trace with hash -438004118, now seen corresponding path program 1 times [2019-11-19 22:46:35,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:46:35,445 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309939380] [2019-11-19 22:46:35,446 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:46:35,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:46:35,493 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:46:35,493 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309939380] [2019-11-19 22:46:35,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:46:35,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 22:46:35,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671426392] [2019-11-19 22:46:35,494 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 22:46:35,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:46:35,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 22:46:35,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:46:35,495 INFO L87 Difference]: Start difference. First operand 1445 states and 1806 transitions. Second operand 3 states. [2019-11-19 22:46:35,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:46:35,987 INFO L93 Difference]: Finished difference Result 3150 states and 3956 transitions. [2019-11-19 22:46:35,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 22:46:35,987 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2019-11-19 22:46:35,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:46:35,996 INFO L225 Difference]: With dead ends: 3150 [2019-11-19 22:46:35,996 INFO L226 Difference]: Without dead ends: 1707 [2019-11-19 22:46:35,999 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:46:36,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2019-11-19 22:46:36,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1445. [2019-11-19 22:46:36,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1445 states. [2019-11-19 22:46:36,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1665 transitions. [2019-11-19 22:46:36,036 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1665 transitions. Word has length 127 [2019-11-19 22:46:36,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:46:36,037 INFO L462 AbstractCegarLoop]: Abstraction has 1445 states and 1665 transitions. [2019-11-19 22:46:36,037 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 22:46:36,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1665 transitions. [2019-11-19 22:46:36,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-11-19 22:46:36,041 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:46:36,041 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:46:36,041 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:46:36,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:46:36,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1608303192, now seen corresponding path program 1 times [2019-11-19 22:46:36,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:46:36,046 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560442905] [2019-11-19 22:46:36,046 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:46:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:46:36,118 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-11-19 22:46:36,119 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560442905] [2019-11-19 22:46:36,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:46:36,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 22:46:36,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743863570] [2019-11-19 22:46:36,121 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 22:46:36,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:46:36,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 22:46:36,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:46:36,132 INFO L87 Difference]: Start difference. First operand 1445 states and 1665 transitions. Second operand 3 states. [2019-11-19 22:46:36,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:46:36,520 INFO L93 Difference]: Finished difference Result 2888 states and 3326 transitions. [2019-11-19 22:46:36,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 22:46:36,521 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2019-11-19 22:46:36,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:46:36,528 INFO L225 Difference]: With dead ends: 2888 [2019-11-19 22:46:36,529 INFO L226 Difference]: Without dead ends: 1445 [2019-11-19 22:46:36,530 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:46:36,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2019-11-19 22:46:36,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1445. [2019-11-19 22:46:36,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1445 states. [2019-11-19 22:46:36,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1593 transitions. [2019-11-19 22:46:36,560 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1593 transitions. Word has length 135 [2019-11-19 22:46:36,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:46:36,560 INFO L462 AbstractCegarLoop]: Abstraction has 1445 states and 1593 transitions. [2019-11-19 22:46:36,560 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 22:46:36,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1593 transitions. [2019-11-19 22:46:36,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-11-19 22:46:36,564 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:46:36,564 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:46:36,564 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:46:36,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:46:36,565 INFO L82 PathProgramCache]: Analyzing trace with hash 2140021486, now seen corresponding path program 1 times [2019-11-19 22:46:36,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:46:36,565 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680048340] [2019-11-19 22:46:36,566 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:46:36,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:46:37,359 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:46:37,359 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680048340] [2019-11-19 22:46:37,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:46:37,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-19 22:46:37,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303473970] [2019-11-19 22:46:37,360 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-19 22:46:37,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:46:37,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-19 22:46:37,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=77, Unknown=0, NotChecked=0, Total=132 [2019-11-19 22:46:37,360 INFO L87 Difference]: Start difference. First operand 1445 states and 1593 transitions. Second operand 12 states. [2019-11-19 22:46:38,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:46:38,856 INFO L93 Difference]: Finished difference Result 3260 states and 3653 transitions. [2019-11-19 22:46:38,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-19 22:46:38,857 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 142 [2019-11-19 22:46:38,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:46:38,867 INFO L225 Difference]: With dead ends: 3260 [2019-11-19 22:46:38,867 INFO L226 Difference]: Without dead ends: 1914 [2019-11-19 22:46:38,869 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=115, Invalid=157, Unknown=0, NotChecked=0, Total=272 [2019-11-19 22:46:38,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1914 states. [2019-11-19 22:46:38,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1914 to 1611. [2019-11-19 22:46:38,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1611 states. [2019-11-19 22:46:38,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1611 states to 1611 states and 1755 transitions. [2019-11-19 22:46:38,906 INFO L78 Accepts]: Start accepts. Automaton has 1611 states and 1755 transitions. Word has length 142 [2019-11-19 22:46:38,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:46:38,907 INFO L462 AbstractCegarLoop]: Abstraction has 1611 states and 1755 transitions. [2019-11-19 22:46:38,908 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-19 22:46:38,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1611 states and 1755 transitions. [2019-11-19 22:46:38,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2019-11-19 22:46:38,912 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:46:38,913 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:46:38,913 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:46:38,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:46:38,913 INFO L82 PathProgramCache]: Analyzing trace with hash -724774353, now seen corresponding path program 1 times [2019-11-19 22:46:38,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:46:38,914 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389315184] [2019-11-19 22:46:38,914 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:46:38,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:46:39,130 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 171 proven. 27 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-19 22:46:39,130 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389315184] [2019-11-19 22:46:39,134 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989509699] [2019-11-19 22:46:39,134 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b96677d-4856-4526-b2af-3ca6c1fc6b7c/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 [2019-11-19 22:46:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:46:39,277 INFO L255 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 22:46:39,298 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:46:39,395 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2019-11-19 22:46:39,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-19 22:46:39,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2019-11-19 22:46:39,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766710985] [2019-11-19 22:46:39,396 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 22:46:39,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:46:39,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 22:46:39,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-11-19 22:46:39,397 INFO L87 Difference]: Start difference. First operand 1611 states and 1755 transitions. Second operand 3 states. [2019-11-19 22:46:39,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:46:39,795 INFO L93 Difference]: Finished difference Result 1611 states and 1755 transitions. [2019-11-19 22:46:39,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 22:46:39,795 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 212 [2019-11-19 22:46:39,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:46:39,796 INFO L225 Difference]: With dead ends: 1611 [2019-11-19 22:46:39,796 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 22:46:39,798 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 212 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-11-19 22:46:39,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 22:46:39,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 22:46:39,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 22:46:39,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 22:46:39,799 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 212 [2019-11-19 22:46:39,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:46:39,799 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:46:39,799 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 22:46:39,799 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 22:46:39,799 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 22:46:40,004 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 22:46:40,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-19 22:46:40,165 INFO L444 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2019-11-19 22:46:40,165 INFO L444 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2019-11-19 22:46:40,165 INFO L444 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,165 INFO L444 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,165 INFO L444 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,166 INFO L444 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,166 INFO L444 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,166 INFO L444 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,166 INFO L444 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2019-11-19 22:46:40,166 INFO L444 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2019-11-19 22:46:40,166 INFO L444 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2019-11-19 22:46:40,166 INFO L444 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2019-11-19 22:46:40,166 INFO L444 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2019-11-19 22:46:40,166 INFO L444 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2019-11-19 22:46:40,166 INFO L444 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2019-11-19 22:46:40,166 INFO L444 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2019-11-19 22:46:40,166 INFO L444 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2019-11-19 22:46:40,166 INFO L444 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2019-11-19 22:46:40,167 INFO L444 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,167 INFO L444 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,167 INFO L444 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,167 INFO L444 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,167 INFO L444 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,167 INFO L444 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,167 INFO L444 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2019-11-19 22:46:40,167 INFO L444 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2019-11-19 22:46:40,167 INFO L444 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2019-11-19 22:46:40,167 INFO L444 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2019-11-19 22:46:40,167 INFO L444 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2019-11-19 22:46:40,167 INFO L444 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2019-11-19 22:46:40,167 INFO L444 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2019-11-19 22:46:40,168 INFO L444 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2019-11-19 22:46:40,168 INFO L444 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2019-11-19 22:46:40,168 INFO L444 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2019-11-19 22:46:40,168 INFO L444 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2019-11-19 22:46:40,168 INFO L444 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2019-11-19 22:46:40,168 INFO L444 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2019-11-19 22:46:40,168 INFO L444 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2019-11-19 22:46:40,168 INFO L444 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2019-11-19 22:46:40,168 INFO L444 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,168 INFO L444 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,168 INFO L444 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,168 INFO L444 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,172 INFO L444 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,172 INFO L444 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2019-11-19 22:46:40,172 INFO L444 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2019-11-19 22:46:40,172 INFO L444 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2019-11-19 22:46:40,173 INFO L444 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2019-11-19 22:46:40,173 INFO L444 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2019-11-19 22:46:40,173 INFO L444 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2019-11-19 22:46:40,173 INFO L444 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2019-11-19 22:46:40,173 INFO L444 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2019-11-19 22:46:40,173 INFO L444 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2019-11-19 22:46:40,174 INFO L440 ceAbstractionStarter]: At program point L574(lines 30 575) the Hoare annotation is: (let ((.cse0 (= 1 ~a7~0))) (or (and .cse0 (= ~a12~0 8) (= ~a20~0 1)) (and (= ~a21~0 1) (<= ~a7~0 0)) (and .cse0 (not (= ~a16~0 6))))) [2019-11-19 22:46:40,174 INFO L444 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,174 INFO L444 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,174 INFO L444 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,174 INFO L444 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,174 INFO L444 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,174 INFO L444 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2019-11-19 22:46:40,175 INFO L444 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2019-11-19 22:46:40,175 INFO L444 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2019-11-19 22:46:40,175 INFO L444 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2019-11-19 22:46:40,175 INFO L444 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2019-11-19 22:46:40,175 INFO L444 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2019-11-19 22:46:40,175 INFO L444 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2019-11-19 22:46:40,175 INFO L444 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2019-11-19 22:46:40,175 INFO L444 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2019-11-19 22:46:40,176 INFO L444 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2019-11-19 22:46:40,176 INFO L444 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2019-11-19 22:46:40,176 INFO L444 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2019-11-19 22:46:40,176 INFO L444 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2019-11-19 22:46:40,176 INFO L447 ceAbstractionStarter]: At program point L577(lines 577 594) the Hoare annotation is: true [2019-11-19 22:46:40,176 INFO L444 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,176 INFO L444 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,176 INFO L444 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,177 INFO L444 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,177 INFO L444 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,177 INFO L444 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2019-11-19 22:46:40,177 INFO L444 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2019-11-19 22:46:40,177 INFO L444 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2019-11-19 22:46:40,177 INFO L444 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2019-11-19 22:46:40,177 INFO L444 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2019-11-19 22:46:40,177 INFO L444 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2019-11-19 22:46:40,178 INFO L444 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2019-11-19 22:46:40,178 INFO L444 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2019-11-19 22:46:40,178 INFO L444 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2019-11-19 22:46:40,178 INFO L444 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,178 INFO L444 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,178 INFO L444 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,178 INFO L444 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,178 INFO L444 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2019-11-19 22:46:40,179 INFO L444 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,179 INFO L444 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2019-11-19 22:46:40,179 INFO L444 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2019-11-19 22:46:40,179 INFO L444 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2019-11-19 22:46:40,179 INFO L444 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2019-11-19 22:46:40,179 INFO L444 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2019-11-19 22:46:40,179 INFO L444 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2019-11-19 22:46:40,179 INFO L444 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2019-11-19 22:46:40,180 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-19 22:46:40,180 INFO L444 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2019-11-19 22:46:40,180 INFO L444 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2019-11-19 22:46:40,180 INFO L444 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2019-11-19 22:46:40,180 INFO L444 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2019-11-19 22:46:40,180 INFO L444 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2019-11-19 22:46:40,180 INFO L444 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2019-11-19 22:46:40,180 INFO L444 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,181 INFO L440 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= 1 ~a7~0))) (or (and .cse0 (= ~a12~0 8) (= ~a20~0 1)) (and (= ~a21~0 1) (<= ~a7~0 0)) (and .cse0 (not (= ~a16~0 6))))) [2019-11-19 22:46:40,181 INFO L444 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,181 INFO L444 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,181 INFO L444 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,181 INFO L444 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,181 INFO L444 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2019-11-19 22:46:40,182 INFO L444 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2019-11-19 22:46:40,182 INFO L444 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2019-11-19 22:46:40,182 INFO L444 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2019-11-19 22:46:40,182 INFO L444 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2019-11-19 22:46:40,182 INFO L444 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2019-11-19 22:46:40,182 INFO L444 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2019-11-19 22:46:40,182 INFO L444 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2019-11-19 22:46:40,182 INFO L444 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,183 INFO L444 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,183 INFO L444 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,183 INFO L444 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,183 INFO L444 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,183 INFO L444 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2019-11-19 22:46:40,183 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-19 22:46:40,183 INFO L444 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2019-11-19 22:46:40,183 INFO L444 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2019-11-19 22:46:40,184 INFO L444 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2019-11-19 22:46:40,184 INFO L444 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2019-11-19 22:46:40,184 INFO L444 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2019-11-19 22:46:40,184 INFO L444 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2019-11-19 22:46:40,184 INFO L444 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2019-11-19 22:46:40,184 INFO L444 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2019-11-19 22:46:40,184 INFO L444 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2019-11-19 22:46:40,184 INFO L444 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2019-11-19 22:46:40,185 INFO L444 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2019-11-19 22:46:40,185 INFO L444 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,185 INFO L444 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,185 INFO L444 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,185 INFO L444 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,185 INFO L444 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2019-11-19 22:46:40,188 INFO L444 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,188 INFO L444 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,189 INFO L444 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2019-11-19 22:46:40,189 INFO L444 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2019-11-19 22:46:40,189 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-19 22:46:40,189 INFO L444 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2019-11-19 22:46:40,189 INFO L444 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2019-11-19 22:46:40,189 INFO L444 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2019-11-19 22:46:40,189 INFO L444 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2019-11-19 22:46:40,189 INFO L444 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2019-11-19 22:46:40,190 INFO L444 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2019-11-19 22:46:40,190 INFO L444 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2019-11-19 22:46:40,190 INFO L444 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2019-11-19 22:46:40,190 INFO L444 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2019-11-19 22:46:40,190 INFO L444 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2019-11-19 22:46:40,190 INFO L444 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,190 INFO L444 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,191 INFO L444 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,191 INFO L444 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,191 INFO L444 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,191 INFO L444 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2019-11-19 22:46:40,191 INFO L444 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,191 INFO L444 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2019-11-19 22:46:40,191 INFO L444 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2019-11-19 22:46:40,191 INFO L444 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2019-11-19 22:46:40,192 INFO L444 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2019-11-19 22:46:40,192 INFO L444 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2019-11-19 22:46:40,192 INFO L444 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2019-11-19 22:46:40,192 INFO L444 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2019-11-19 22:46:40,192 INFO L444 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2019-11-19 22:46:40,192 INFO L444 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2019-11-19 22:46:40,192 INFO L444 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2019-11-19 22:46:40,192 INFO L444 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2019-11-19 22:46:40,193 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-19 22:46:40,193 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 491) no Hoare annotation was computed. [2019-11-19 22:46:40,193 INFO L444 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2019-11-19 22:46:40,193 INFO L444 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2019-11-19 22:46:40,193 INFO L444 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2019-11-19 22:46:40,193 INFO L444 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,193 INFO L444 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,194 INFO L444 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,194 INFO L444 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,194 INFO L444 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,194 INFO L444 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2019-11-19 22:46:40,194 INFO L444 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2019-11-19 22:46:40,194 INFO L444 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2019-11-19 22:46:40,194 INFO L444 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2019-11-19 22:46:40,194 INFO L444 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2019-11-19 22:46:40,195 INFO L444 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2019-11-19 22:46:40,195 INFO L444 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2019-11-19 22:46:40,195 INFO L444 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2019-11-19 22:46:40,195 INFO L444 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2019-11-19 22:46:40,195 INFO L444 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2019-11-19 22:46:40,195 INFO L444 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2019-11-19 22:46:40,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:46:40 BoogieIcfgContainer [2019-11-19 22:46:40,216 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 22:46:40,216 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:46:40,216 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:46:40,216 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:46:40,217 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:46:29" (3/4) ... [2019-11-19 22:46:40,220 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 22:46:40,253 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-19 22:46:40,255 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-19 22:46:40,427 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0b96677d-4856-4526-b2af-3ca6c1fc6b7c/bin/uautomizer/witness.graphml [2019-11-19 22:46:40,427 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:46:40,429 INFO L168 Benchmark]: Toolchain (without parser) took 12903.64 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 260.6 MB). Free memory was 944.7 MB in the beginning and 904.4 MB in the end (delta: 40.3 MB). Peak memory consumption was 300.8 MB. Max. memory is 11.5 GB. [2019-11-19 22:46:40,429 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:46:40,430 INFO L168 Benchmark]: CACSL2BoogieTranslator took 640.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -157.2 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-19 22:46:40,430 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.48 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. [2019-11-19 22:46:40,430 INFO L168 Benchmark]: Boogie Preprocessor took 62.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:46:40,431 INFO L168 Benchmark]: RCFGBuilder took 1321.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 976.6 MB in the end (delta: 114.6 MB). Peak memory consumption was 114.6 MB. Max. memory is 11.5 GB. [2019-11-19 22:46:40,431 INFO L168 Benchmark]: TraceAbstraction took 10573.05 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 135.8 MB). Free memory was 976.6 MB in the beginning and 932.3 MB in the end (delta: 44.3 MB). Peak memory consumption was 180.1 MB. Max. memory is 11.5 GB. [2019-11-19 22:46:40,432 INFO L168 Benchmark]: Witness Printer took 211.16 ms. Allocated memory is still 1.3 GB. Free memory was 932.3 MB in the beginning and 904.4 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2019-11-19 22:46:40,434 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 640.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -157.2 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 90.48 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 62.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1321.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 976.6 MB in the end (delta: 114.6 MB). Peak memory consumption was 114.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 10573.05 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 135.8 MB). Free memory was 976.6 MB in the beginning and 932.3 MB in the end (delta: 44.3 MB). Peak memory consumption was 180.1 MB. Max. memory is 11.5 GB. * Witness Printer took 211.16 ms. Allocated memory is still 1.3 GB. Free memory was 932.3 MB in the beginning and 904.4 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 491]: 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: 30]: Loop Invariant Derived loop invariant: (((1 == a7 && a12 == 8) && a20 == 1) || (a21 == 1 && a7 <= 0)) || (1 == a7 && !(a16 == 6)) - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((1 == a7 && a12 == 8) && a20 == 1) || (a21 == 1 && a7 <= 0)) || (1 == a7 && !(a16 == 6)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Result: SAFE, OverallTime: 10.4s, OverallIterations: 9, TraceHistogramMax: 6, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 562 SDtfs, 2069 SDslu, 120 SDs, 0 SdLazy, 5132 SolverSat, 680 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 262 GetRequests, 226 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1611occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 963 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 36 NumberOfFragments, 53 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1958 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 42 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1404 NumberOfCodeBlocks, 1404 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1394 ConstructedInterpolants, 0 QuantifiedInterpolants, 755026 SizeOfPredicates, 1 NumberOfNonLiveVariables, 419 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 607/634 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...