./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label32.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_665e1bab-fbfe-4fb2-8190-35006fa1ab45/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_665e1bab-fbfe-4fb2-8190-35006fa1ab45/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_665e1bab-fbfe-4fb2-8190-35006fa1ab45/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_665e1bab-fbfe-4fb2-8190-35006fa1ab45/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label32.c -s /tmp/vcloud-vcloud-master/worker/run_dir_665e1bab-fbfe-4fb2-8190-35006fa1ab45/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_665e1bab-fbfe-4fb2-8190-35006fa1ab45/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 b17d8b704c4d90069798a3313de2551dfcebcaee ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:35:09,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:35:09,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:35:09,884 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:35:09,884 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:35:09,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:35:09,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:35:09,888 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:35:09,890 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:35:09,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:35:09,891 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:35:09,892 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:35:09,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:35:09,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:35:09,893 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:35:09,894 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:35:09,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:35:09,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:35:09,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:35:09,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:35:09,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:35:09,900 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:35:09,901 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:35:09,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:35:09,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:35:09,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:35:09,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:35:09,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:35:09,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:35:09,904 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:35:09,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:35:09,905 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:35:09,905 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:35:09,906 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:35:09,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:35:09,907 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:35:09,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:35:09,907 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:35:09,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:35:09,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:35:09,908 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:35:09,909 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_665e1bab-fbfe-4fb2-8190-35006fa1ab45/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 18:35:09,918 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:35:09,918 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:35:09,919 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:35:09,919 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:35:09,919 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:35:09,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:35:09,919 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:35:09,919 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:35:09,919 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:35:09,919 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:35:09,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:35:09,920 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:35:09,920 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:35:09,920 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:35:09,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:35:09,920 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:35:09,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:35:09,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:35:09,920 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:35:09,920 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:35:09,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:35:09,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:35:09,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:35:09,921 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:35:09,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:35:09,921 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:35:09,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:35:09,921 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:35:09,921 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:35:09,921 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_665e1bab-fbfe-4fb2-8190-35006fa1ab45/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 -> b17d8b704c4d90069798a3313de2551dfcebcaee [2019-12-07 18:35:10,021 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:35:10,031 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:35:10,034 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:35:10,035 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:35:10,035 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:35:10,035 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_665e1bab-fbfe-4fb2-8190-35006fa1ab45/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem14_label32.c [2019-12-07 18:35:10,076 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_665e1bab-fbfe-4fb2-8190-35006fa1ab45/bin/uautomizer/data/3ba5db632/e3c53ca600504b9c9cc5c5dce20ea190/FLAGfd15df853 [2019-12-07 18:35:10,564 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:35:10,565 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_665e1bab-fbfe-4fb2-8190-35006fa1ab45/sv-benchmarks/c/eca-rers2012/Problem14_label32.c [2019-12-07 18:35:10,575 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_665e1bab-fbfe-4fb2-8190-35006fa1ab45/bin/uautomizer/data/3ba5db632/e3c53ca600504b9c9cc5c5dce20ea190/FLAGfd15df853 [2019-12-07 18:35:10,587 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_665e1bab-fbfe-4fb2-8190-35006fa1ab45/bin/uautomizer/data/3ba5db632/e3c53ca600504b9c9cc5c5dce20ea190 [2019-12-07 18:35:10,589 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:35:10,591 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:35:10,592 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:35:10,592 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:35:10,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:35:10,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:35:10" (1/1) ... [2019-12-07 18:35:10,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@174ba895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:10, skipping insertion in model container [2019-12-07 18:35:10,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:35:10" (1/1) ... [2019-12-07 18:35:10,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:35:10,635 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:35:10,889 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:35:10,892 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:35:10,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:35:10,983 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:35:10,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:10 WrapperNode [2019-12-07 18:35:10,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:35:10,984 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:35:10,984 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:35:10,984 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:35:10,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:10" (1/1) ... [2019-12-07 18:35:11,005 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:10" (1/1) ... [2019-12-07 18:35:11,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:35:11,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:35:11,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:35:11,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:35:11,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:10" (1/1) ... [2019-12-07 18:35:11,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:10" (1/1) ... [2019-12-07 18:35:11,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:10" (1/1) ... [2019-12-07 18:35:11,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:10" (1/1) ... [2019-12-07 18:35:11,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:10" (1/1) ... [2019-12-07 18:35:11,089 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:10" (1/1) ... [2019-12-07 18:35:11,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:10" (1/1) ... [2019-12-07 18:35:11,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:35:11,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:35:11,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:35:11,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:35:11,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_665e1bab-fbfe-4fb2-8190-35006fa1ab45/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 [2019-12-07 18:35:11,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:35:11,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:35:11,915 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:35:11,916 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 18:35:11,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:35:11 BoogieIcfgContainer [2019-12-07 18:35:11,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:35:11,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:35:11,918 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:35:11,921 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:35:11,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:35:10" (1/3) ... [2019-12-07 18:35:11,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@252d6457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:35:11, skipping insertion in model container [2019-12-07 18:35:11,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:10" (2/3) ... [2019-12-07 18:35:11,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@252d6457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:35:11, skipping insertion in model container [2019-12-07 18:35:11,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:35:11" (3/3) ... [2019-12-07 18:35:11,924 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label32.c [2019-12-07 18:35:11,934 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:35:11,941 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 18:35:11,951 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 18:35:11,975 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:35:11,975 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:35:11,976 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:35:11,976 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:35:11,976 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:35:11,976 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:35:11,976 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:35:11,976 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:35:11,992 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2019-12-07 18:35:11,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-12-07 18:35:11,999 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:11,999 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] [2019-12-07 18:35:12,000 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:12,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:12,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1246856209, now seen corresponding path program 1 times [2019-12-07 18:35:12,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:12,010 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685248480] [2019-12-07 18:35:12,011 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:12,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:12,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:12,192 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685248480] [2019-12-07 18:35:12,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:35:12,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:35:12,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967007606] [2019-12-07 18:35:12,199 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:35:12,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:35:12,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:35:12,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:35:12,212 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 4 states. [2019-12-07 18:35:13,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:13,187 INFO L93 Difference]: Finished difference Result 866 states and 1574 transitions. [2019-12-07 18:35:13,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:35:13,189 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 55 [2019-12-07 18:35:13,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:35:13,204 INFO L225 Difference]: With dead ends: 866 [2019-12-07 18:35:13,204 INFO L226 Difference]: Without dead ends: 538 [2019-12-07 18:35:13,208 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 [2019-12-07 18:35:13,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-07 18:35:13,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-07 18:35:13,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-07 18:35:13,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 754 transitions. [2019-12-07 18:35:13,271 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 754 transitions. Word has length 55 [2019-12-07 18:35:13,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:35:13,271 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 754 transitions. [2019-12-07 18:35:13,272 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:35:13,272 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 754 transitions. [2019-12-07 18:35:13,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-12-07 18:35:13,278 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:13,279 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, 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] [2019-12-07 18:35:13,279 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:13,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:13,280 INFO L82 PathProgramCache]: Analyzing trace with hash 818859818, now seen corresponding path program 1 times [2019-12-07 18:35:13,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:13,280 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511729046] [2019-12-07 18:35:13,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:13,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:13,602 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:13,602 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511729046] [2019-12-07 18:35:13,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:35:13,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 18:35:13,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912451546] [2019-12-07 18:35:13,604 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 18:35:13,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:35:13,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:35:13,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:35:13,605 INFO L87 Difference]: Start difference. First operand 538 states and 754 transitions. Second operand 6 states. [2019-12-07 18:35:14,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:14,722 INFO L93 Difference]: Finished difference Result 1964 states and 2764 transitions. [2019-12-07 18:35:14,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:35:14,722 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 163 [2019-12-07 18:35:14,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:35:14,728 INFO L225 Difference]: With dead ends: 1964 [2019-12-07 18:35:14,728 INFO L226 Difference]: Without dead ends: 1428 [2019-12-07 18:35:14,730 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:35:14,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2019-12-07 18:35:14,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1428. [2019-12-07 18:35:14,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2019-12-07 18:35:14,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1849 transitions. [2019-12-07 18:35:14,760 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1849 transitions. Word has length 163 [2019-12-07 18:35:14,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:35:14,761 INFO L462 AbstractCegarLoop]: Abstraction has 1428 states and 1849 transitions. [2019-12-07 18:35:14,761 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 18:35:14,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1849 transitions. [2019-12-07 18:35:14,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2019-12-07 18:35:14,765 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:14,765 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:35:14,765 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:14,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:14,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1413016218, now seen corresponding path program 1 times [2019-12-07 18:35:14,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:14,766 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323225202] [2019-12-07 18:35:14,766 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:14,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:14,864 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2019-12-07 18:35:14,864 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323225202] [2019-12-07 18:35:14,864 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:35:14,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:35:14,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375248189] [2019-12-07 18:35:14,865 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:35:14,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:35:14,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:35:14,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:35:14,865 INFO L87 Difference]: Start difference. First operand 1428 states and 1849 transitions. Second operand 4 states. [2019-12-07 18:35:15,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:15,670 INFO L93 Difference]: Finished difference Result 3922 states and 5314 transitions. [2019-12-07 18:35:15,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:35:15,670 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 229 [2019-12-07 18:35:15,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:35:15,680 INFO L225 Difference]: With dead ends: 3922 [2019-12-07 18:35:15,680 INFO L226 Difference]: Without dead ends: 2674 [2019-12-07 18:35:15,682 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 [2019-12-07 18:35:15,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2019-12-07 18:35:15,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2318. [2019-12-07 18:35:15,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2318 states. [2019-12-07 18:35:15,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2951 transitions. [2019-12-07 18:35:15,719 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2951 transitions. Word has length 229 [2019-12-07 18:35:15,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:35:15,720 INFO L462 AbstractCegarLoop]: Abstraction has 2318 states and 2951 transitions. [2019-12-07 18:35:15,720 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:35:15,720 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2951 transitions. [2019-12-07 18:35:15,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2019-12-07 18:35:15,722 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:15,722 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:35:15,722 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:15,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:15,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1877511677, now seen corresponding path program 1 times [2019-12-07 18:35:15,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:15,723 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608471595] [2019-12-07 18:35:15,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:15,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:15,898 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 156 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-12-07 18:35:15,899 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608471595] [2019-12-07 18:35:15,899 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735572719] [2019-12-07 18:35:15,899 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_665e1bab-fbfe-4fb2-8190-35006fa1ab45/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 [2019-12-07 18:35:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:15,964 INFO L264 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 18:35:15,975 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:16,057 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-12-07 18:35:16,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 18:35:16,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2019-12-07 18:35:16,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106540619] [2019-12-07 18:35:16,058 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:35:16,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:35:16,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:35:16,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:35:16,059 INFO L87 Difference]: Start difference. First operand 2318 states and 2951 transitions. Second operand 4 states. [2019-12-07 18:35:16,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:16,695 INFO L93 Difference]: Finished difference Result 4692 states and 5976 transitions. [2019-12-07 18:35:16,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:35:16,695 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 243 [2019-12-07 18:35:16,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:35:16,707 INFO L225 Difference]: With dead ends: 4692 [2019-12-07 18:35:16,707 INFO L226 Difference]: Without dead ends: 2496 [2019-12-07 18:35:16,710 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 242 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:35:16,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2019-12-07 18:35:16,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2318. [2019-12-07 18:35:16,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2318 states. [2019-12-07 18:35:16,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2545 transitions. [2019-12-07 18:35:16,772 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2545 transitions. Word has length 243 [2019-12-07 18:35:16,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:35:16,772 INFO L462 AbstractCegarLoop]: Abstraction has 2318 states and 2545 transitions. [2019-12-07 18:35:16,772 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:35:16,772 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2545 transitions. [2019-12-07 18:35:16,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2019-12-07 18:35:16,776 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:16,776 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:35:16,977 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:35:16,977 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:16,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:16,977 INFO L82 PathProgramCache]: Analyzing trace with hash 213224939, now seen corresponding path program 1 times [2019-12-07 18:35:16,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:16,978 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34467850] [2019-12-07 18:35:16,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:16,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:17,314 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 282 proven. 65 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2019-12-07 18:35:17,314 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34467850] [2019-12-07 18:35:17,315 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996963116] [2019-12-07 18:35:17,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_665e1bab-fbfe-4fb2-8190-35006fa1ab45/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:35:17,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:17,377 INFO L264 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:35:17,382 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:17,459 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2019-12-07 18:35:17,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 18:35:17,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2019-12-07 18:35:17,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550079720] [2019-12-07 18:35:17,460 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:35:17,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:35:17,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:35:17,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:35:17,460 INFO L87 Difference]: Start difference. First operand 2318 states and 2545 transitions. Second operand 3 states. [2019-12-07 18:35:17,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:17,801 INFO L93 Difference]: Finished difference Result 4456 states and 4909 transitions. [2019-12-07 18:35:17,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:35:17,801 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 338 [2019-12-07 18:35:17,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:35:17,809 INFO L225 Difference]: With dead ends: 4456 [2019-12-07 18:35:17,810 INFO L226 Difference]: Without dead ends: 2318 [2019-12-07 18:35:17,811 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 337 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:35:17,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2019-12-07 18:35:17,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2318. [2019-12-07 18:35:17,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2318 states. [2019-12-07 18:35:17,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2514 transitions. [2019-12-07 18:35:17,841 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2514 transitions. Word has length 338 [2019-12-07 18:35:17,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:35:17,841 INFO L462 AbstractCegarLoop]: Abstraction has 2318 states and 2514 transitions. [2019-12-07 18:35:17,841 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:35:17,842 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2514 transitions. [2019-12-07 18:35:17,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2019-12-07 18:35:17,845 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:17,846 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:35:18,046 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:35:18,046 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:18,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:18,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1499893231, now seen corresponding path program 1 times [2019-12-07 18:35:18,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:18,047 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732600566] [2019-12-07 18:35:18,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:18,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:18,489 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 343 proven. 4 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2019-12-07 18:35:18,490 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732600566] [2019-12-07 18:35:18,490 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977447215] [2019-12-07 18:35:18,490 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_665e1bab-fbfe-4fb2-8190-35006fa1ab45/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:35:18,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:18,552 INFO L264 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:35:18,556 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:18,623 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2019-12-07 18:35:18,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 18:35:18,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2019-12-07 18:35:18,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987445172] [2019-12-07 18:35:18,625 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:35:18,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:35:18,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:35:18,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:35:18,626 INFO L87 Difference]: Start difference. First operand 2318 states and 2514 transitions. Second operand 3 states. [2019-12-07 18:35:18,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:18,983 INFO L93 Difference]: Finished difference Result 4634 states and 5050 transitions. [2019-12-07 18:35:18,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:35:18,983 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 359 [2019-12-07 18:35:18,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:35:18,991 INFO L225 Difference]: With dead ends: 4634 [2019-12-07 18:35:18,991 INFO L226 Difference]: Without dead ends: 2496 [2019-12-07 18:35:18,993 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:35:18,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2019-12-07 18:35:19,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2140. [2019-12-07 18:35:19,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2140 states. [2019-12-07 18:35:19,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2314 transitions. [2019-12-07 18:35:19,016 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2314 transitions. Word has length 359 [2019-12-07 18:35:19,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:35:19,017 INFO L462 AbstractCegarLoop]: Abstraction has 2140 states and 2314 transitions. [2019-12-07 18:35:19,017 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:35:19,017 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2314 transitions. [2019-12-07 18:35:19,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2019-12-07 18:35:19,024 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:19,025 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:35:19,225 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:35:19,225 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:19,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:19,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1717268069, now seen corresponding path program 1 times [2019-12-07 18:35:19,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:19,226 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137588963] [2019-12-07 18:35:19,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:19,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:19,604 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 420 proven. 65 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2019-12-07 18:35:19,604 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137588963] [2019-12-07 18:35:19,604 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608246295] [2019-12-07 18:35:19,604 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_665e1bab-fbfe-4fb2-8190-35006fa1ab45/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:35:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:19,674 INFO L264 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 18:35:19,678 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:19,842 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 380 proven. 39 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2019-12-07 18:35:19,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:35:19,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2019-12-07 18:35:19,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779936308] [2019-12-07 18:35:19,844 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 18:35:19,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:35:19,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 18:35:19,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-12-07 18:35:19,844 INFO L87 Difference]: Start difference. First operand 2140 states and 2314 transitions. Second operand 10 states. [2019-12-07 18:35:21,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:21,781 INFO L93 Difference]: Finished difference Result 5575 states and 6053 transitions. [2019-12-07 18:35:21,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 18:35:21,781 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 408 [2019-12-07 18:35:21,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:35:21,789 INFO L225 Difference]: With dead ends: 5575 [2019-12-07 18:35:21,789 INFO L226 Difference]: Without dead ends: 2861 [2019-12-07 18:35:21,791 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 415 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2019-12-07 18:35:21,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2861 states. [2019-12-07 18:35:21,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2861 to 2496. [2019-12-07 18:35:21,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2496 states. [2019-12-07 18:35:21,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2687 transitions. [2019-12-07 18:35:21,817 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2687 transitions. Word has length 408 [2019-12-07 18:35:21,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:35:21,817 INFO L462 AbstractCegarLoop]: Abstraction has 2496 states and 2687 transitions. [2019-12-07 18:35:21,817 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 18:35:21,817 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2687 transitions. [2019-12-07 18:35:21,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 751 [2019-12-07 18:35:21,822 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:21,822 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:35:22,023 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:35:22,023 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:22,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:22,024 INFO L82 PathProgramCache]: Analyzing trace with hash -1689769193, now seen corresponding path program 1 times [2019-12-07 18:35:22,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:22,025 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955758629] [2019-12-07 18:35:22,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:22,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:22,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1682 backedges. 1193 proven. 0 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2019-12-07 18:35:22,464 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955758629] [2019-12-07 18:35:22,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:35:22,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:35:22,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127377325] [2019-12-07 18:35:22,465 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:35:22,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:35:22,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:35:22,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:35:22,466 INFO L87 Difference]: Start difference. First operand 2496 states and 2687 transitions. Second operand 4 states. [2019-12-07 18:35:22,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:22,986 INFO L93 Difference]: Finished difference Result 6236 states and 6755 transitions. [2019-12-07 18:35:22,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:35:22,986 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 750 [2019-12-07 18:35:22,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:35:22,999 INFO L225 Difference]: With dead ends: 6236 [2019-12-07 18:35:22,999 INFO L226 Difference]: Without dead ends: 3920 [2019-12-07 18:35:23,000 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:35:23,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2019-12-07 18:35:23,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3742. [2019-12-07 18:35:23,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2019-12-07 18:35:23,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 3990 transitions. [2019-12-07 18:35:23,039 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 3990 transitions. Word has length 750 [2019-12-07 18:35:23,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:35:23,040 INFO L462 AbstractCegarLoop]: Abstraction has 3742 states and 3990 transitions. [2019-12-07 18:35:23,040 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:35:23,040 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 3990 transitions. [2019-12-07 18:35:23,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 964 [2019-12-07 18:35:23,048 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:23,048 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:35:23,049 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:23,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:23,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1647123312, now seen corresponding path program 1 times [2019-12-07 18:35:23,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:23,049 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321092258] [2019-12-07 18:35:23,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:23,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:24,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2578 backedges. 1790 proven. 0 refuted. 0 times theorem prover too weak. 788 trivial. 0 not checked. [2019-12-07 18:35:24,363 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321092258] [2019-12-07 18:35:24,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:35:24,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 18:35:24,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389146399] [2019-12-07 18:35:24,364 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 18:35:24,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:35:24,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:35:24,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:35:24,365 INFO L87 Difference]: Start difference. First operand 3742 states and 3990 transitions. Second operand 6 states. [2019-12-07 18:35:25,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:25,103 INFO L93 Difference]: Finished difference Result 8215 states and 8732 transitions. [2019-12-07 18:35:25,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 18:35:25,103 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 963 [2019-12-07 18:35:25,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:35:25,122 INFO L225 Difference]: With dead ends: 8215 [2019-12-07 18:35:25,123 INFO L226 Difference]: Without dead ends: 4653 [2019-12-07 18:35:25,125 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:35:25,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4653 states. [2019-12-07 18:35:25,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4653 to 3742. [2019-12-07 18:35:25,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2019-12-07 18:35:25,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 3990 transitions. [2019-12-07 18:35:25,171 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 3990 transitions. Word has length 963 [2019-12-07 18:35:25,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:35:25,171 INFO L462 AbstractCegarLoop]: Abstraction has 3742 states and 3990 transitions. [2019-12-07 18:35:25,171 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 18:35:25,171 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 3990 transitions. [2019-12-07 18:35:25,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 971 [2019-12-07 18:35:25,182 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:25,183 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:35:25,183 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:25,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:25,183 INFO L82 PathProgramCache]: Analyzing trace with hash -375242345, now seen corresponding path program 1 times [2019-12-07 18:35:25,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:25,183 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267017942] [2019-12-07 18:35:25,184 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:25,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:26,696 INFO L134 CoverageAnalysis]: Checked inductivity of 2599 backedges. 1811 proven. 0 refuted. 0 times theorem prover too weak. 788 trivial. 0 not checked. [2019-12-07 18:35:26,696 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267017942] [2019-12-07 18:35:26,696 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:35:26,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 18:35:26,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128407214] [2019-12-07 18:35:26,697 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 18:35:26,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:35:26,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 18:35:26,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:35:26,698 INFO L87 Difference]: Start difference. First operand 3742 states and 3990 transitions. Second operand 7 states. [2019-12-07 18:35:27,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:27,350 INFO L93 Difference]: Finished difference Result 8197 states and 8710 transitions. [2019-12-07 18:35:27,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:35:27,350 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 970 [2019-12-07 18:35:27,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:35:27,364 INFO L225 Difference]: With dead ends: 8197 [2019-12-07 18:35:27,364 INFO L226 Difference]: Without dead ends: 4457 [2019-12-07 18:35:27,367 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:35:27,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4457 states. [2019-12-07 18:35:27,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4457 to 3920. [2019-12-07 18:35:27,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3920 states. [2019-12-07 18:35:27,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4170 transitions. [2019-12-07 18:35:27,419 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4170 transitions. Word has length 970 [2019-12-07 18:35:27,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:35:27,420 INFO L462 AbstractCegarLoop]: Abstraction has 3920 states and 4170 transitions. [2019-12-07 18:35:27,420 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 18:35:27,420 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4170 transitions. [2019-12-07 18:35:27,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1039 [2019-12-07 18:35:27,428 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:27,428 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2019-12-07 18:35:27,429 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:27,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:27,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1361968991, now seen corresponding path program 1 times [2019-12-07 18:35:27,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:27,429 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414819136] [2019-12-07 18:35:27,430 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:29,316 INFO L134 CoverageAnalysis]: Checked inductivity of 2928 backedges. 1143 proven. 617 refuted. 0 times theorem prover too weak. 1168 trivial. 0 not checked. [2019-12-07 18:35:29,316 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414819136] [2019-12-07 18:35:29,316 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230103444] [2019-12-07 18:35:29,316 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_665e1bab-fbfe-4fb2-8190-35006fa1ab45/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:35:29,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:29,462 INFO L264 TraceCheckSpWp]: Trace formula consists of 1237 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:35:29,472 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:29,906 INFO L134 CoverageAnalysis]: Checked inductivity of 2928 backedges. 370 proven. 0 refuted. 0 times theorem prover too weak. 2558 trivial. 0 not checked. [2019-12-07 18:35:29,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 18:35:29,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2019-12-07 18:35:29,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055070153] [2019-12-07 18:35:29,908 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:35:29,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:35:29,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:35:29,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:35:29,908 INFO L87 Difference]: Start difference. First operand 3920 states and 4170 transitions. Second operand 3 states. [2019-12-07 18:35:30,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:30,222 INFO L93 Difference]: Finished difference Result 4454 states and 4735 transitions. [2019-12-07 18:35:30,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:35:30,222 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1038 [2019-12-07 18:35:30,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:35:30,223 INFO L225 Difference]: With dead ends: 4454 [2019-12-07 18:35:30,223 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 18:35:30,225 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1042 GetRequests, 1037 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:35:30,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 18:35:30,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 18:35:30,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 18:35:30,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 18:35:30,225 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1038 [2019-12-07 18:35:30,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:35:30,226 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:35:30,226 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:35:30,226 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:35:30,226 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 18:35:30,426 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:35:30,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 18:35:30,727 WARN L192 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 33 [2019-12-07 18:35:30,908 WARN L192 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 33 [2019-12-07 18:35:30,910 INFO L246 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2019-12-07 18:35:30,910 INFO L246 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2019-12-07 18:35:30,910 INFO L246 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,910 INFO L246 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,910 INFO L246 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,911 INFO L246 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2019-12-07 18:35:30,911 INFO L246 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2019-12-07 18:35:30,911 INFO L246 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2019-12-07 18:35:30,911 INFO L246 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2019-12-07 18:35:30,911 INFO L246 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2019-12-07 18:35:30,911 INFO L246 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2019-12-07 18:35:30,911 INFO L246 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2019-12-07 18:35:30,911 INFO L246 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2019-12-07 18:35:30,911 INFO L246 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,911 INFO L246 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,911 INFO L246 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,911 INFO L246 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2019-12-07 18:35:30,911 INFO L246 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2019-12-07 18:35:30,911 INFO L246 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2019-12-07 18:35:30,911 INFO L246 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2019-12-07 18:35:30,912 INFO L246 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2019-12-07 18:35:30,912 INFO L246 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2019-12-07 18:35:30,912 INFO L246 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2019-12-07 18:35:30,912 INFO L246 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2019-12-07 18:35:30,912 INFO L246 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,912 INFO L246 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,912 INFO L246 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,912 INFO L246 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2019-12-07 18:35:30,912 INFO L246 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2019-12-07 18:35:30,912 INFO L246 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2019-12-07 18:35:30,912 INFO L246 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2019-12-07 18:35:30,912 INFO L246 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2019-12-07 18:35:30,912 INFO L246 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2019-12-07 18:35:30,912 INFO L246 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2019-12-07 18:35:30,912 INFO L246 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2019-12-07 18:35:30,913 INFO L246 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2019-12-07 18:35:30,913 INFO L246 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,913 INFO L246 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,913 INFO L246 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,913 INFO L246 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2019-12-07 18:35:30,913 INFO L246 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2019-12-07 18:35:30,913 INFO L246 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2019-12-07 18:35:30,913 INFO L246 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2019-12-07 18:35:30,913 INFO L246 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2019-12-07 18:35:30,913 INFO L246 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2019-12-07 18:35:30,913 INFO L246 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2019-12-07 18:35:30,913 INFO L246 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,913 INFO L246 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,913 INFO L246 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,913 INFO L246 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2019-12-07 18:35:30,914 INFO L246 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2019-12-07 18:35:30,914 INFO L246 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2019-12-07 18:35:30,914 INFO L246 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2019-12-07 18:35:30,914 INFO L246 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2019-12-07 18:35:30,914 INFO L246 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2019-12-07 18:35:30,914 INFO L246 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2019-12-07 18:35:30,914 INFO L246 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2019-12-07 18:35:30,914 INFO L246 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2019-12-07 18:35:30,914 INFO L246 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,914 INFO L246 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,914 INFO L246 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,914 INFO L246 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2019-12-07 18:35:30,914 INFO L246 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2019-12-07 18:35:30,914 INFO L246 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2019-12-07 18:35:30,914 INFO L246 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2019-12-07 18:35:30,915 INFO L246 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2019-12-07 18:35:30,915 INFO L246 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2019-12-07 18:35:30,915 INFO L246 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2019-12-07 18:35:30,915 INFO L246 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2019-12-07 18:35:30,915 INFO L246 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,915 INFO L246 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,915 INFO L246 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,915 INFO L246 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2019-12-07 18:35:30,915 INFO L246 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2019-12-07 18:35:30,915 INFO L246 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2019-12-07 18:35:30,915 INFO L246 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2019-12-07 18:35:30,915 INFO L246 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2019-12-07 18:35:30,915 INFO L246 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2019-12-07 18:35:30,915 INFO L246 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2019-12-07 18:35:30,915 INFO L246 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2019-12-07 18:35:30,916 INFO L246 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,916 INFO L246 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,916 INFO L246 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,916 INFO L246 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2019-12-07 18:35:30,916 INFO L246 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2019-12-07 18:35:30,916 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 18:35:30,916 INFO L246 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2019-12-07 18:35:30,916 INFO L246 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2019-12-07 18:35:30,916 INFO L246 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2019-12-07 18:35:30,916 INFO L246 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2019-12-07 18:35:30,916 INFO L246 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2019-12-07 18:35:30,916 INFO L246 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2019-12-07 18:35:30,916 INFO L246 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,916 INFO L246 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,916 INFO L246 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,916 INFO L246 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2019-12-07 18:35:30,917 INFO L246 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2019-12-07 18:35:30,917 INFO L246 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2019-12-07 18:35:30,917 INFO L246 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2019-12-07 18:35:30,917 INFO L246 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2019-12-07 18:35:30,917 INFO L246 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2019-12-07 18:35:30,917 INFO L246 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2019-12-07 18:35:30,917 INFO L246 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2019-12-07 18:35:30,917 INFO L246 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,917 INFO L246 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,917 INFO L246 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,917 INFO L246 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2019-12-07 18:35:30,917 INFO L246 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2019-12-07 18:35:30,917 INFO L246 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2019-12-07 18:35:30,917 INFO L246 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2019-12-07 18:35:30,917 INFO L246 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2019-12-07 18:35:30,917 INFO L246 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2019-12-07 18:35:30,918 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 18:35:30,918 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 169) no Hoare annotation was computed. [2019-12-07 18:35:30,918 INFO L246 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2019-12-07 18:35:30,918 INFO L246 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2019-12-07 18:35:30,918 INFO L246 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,918 INFO L246 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,918 INFO L246 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,918 INFO L246 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2019-12-07 18:35:30,918 INFO L246 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2019-12-07 18:35:30,918 INFO L246 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2019-12-07 18:35:30,918 INFO L246 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2019-12-07 18:35:30,918 INFO L246 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2019-12-07 18:35:30,918 INFO L246 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2019-12-07 18:35:30,918 INFO L246 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2019-12-07 18:35:30,919 INFO L246 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2019-12-07 18:35:30,919 INFO L246 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,919 INFO L246 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,919 INFO L246 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,919 INFO L246 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2019-12-07 18:35:30,919 INFO L246 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2019-12-07 18:35:30,919 INFO L246 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2019-12-07 18:35:30,919 INFO L246 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2019-12-07 18:35:30,919 INFO L246 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2019-12-07 18:35:30,919 INFO L246 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2019-12-07 18:35:30,919 INFO L246 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2019-12-07 18:35:30,919 INFO L246 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2019-12-07 18:35:30,919 INFO L246 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,919 INFO L246 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,919 INFO L246 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2019-12-07 18:35:30,919 INFO L246 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2019-12-07 18:35:30,920 INFO L246 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2019-12-07 18:35:30,920 INFO L246 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2019-12-07 18:35:30,920 INFO L246 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2019-12-07 18:35:30,920 INFO L246 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2019-12-07 18:35:30,920 INFO L246 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2019-12-07 18:35:30,920 INFO L246 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2019-12-07 18:35:30,920 INFO L246 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,920 INFO L246 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,920 INFO L246 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2019-12-07 18:35:30,920 INFO L246 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2019-12-07 18:35:30,920 INFO L246 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2019-12-07 18:35:30,920 INFO L246 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2019-12-07 18:35:30,920 INFO L246 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2019-12-07 18:35:30,920 INFO L246 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2019-12-07 18:35:30,920 INFO L246 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,920 INFO L246 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,921 INFO L242 CegarLoopResult]: At program point L871(lines 20 872) the Hoare annotation is: (let ((.cse1 (= ~a24~0 1))) (let ((.cse2 (not (= ~a21~0 9))) (.cse0 (let ((.cse3 (<= ~a15~0 5))) (or (and .cse1 .cse3) (and .cse3 (<= (+ ~a12~0 49) 0)))))) (or (and .cse0 .cse1) (and .cse1 (or (<= ~a12~0 11) (< 80 ~a12~0))) (and (<= 7 ~a15~0) .cse1 (<= ~a15~0 8)) (and .cse2 .cse1) (and .cse2 .cse0)))) [2019-12-07 18:35:30,921 INFO L246 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2019-12-07 18:35:30,921 INFO L246 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2019-12-07 18:35:30,921 INFO L246 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2019-12-07 18:35:30,921 INFO L246 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2019-12-07 18:35:30,921 INFO L246 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2019-12-07 18:35:30,921 INFO L246 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2019-12-07 18:35:30,921 INFO L246 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2019-12-07 18:35:30,921 INFO L246 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2019-12-07 18:35:30,921 INFO L246 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,921 INFO L246 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,922 INFO L249 CegarLoopResult]: At program point L874(lines 874 890) the Hoare annotation is: true [2019-12-07 18:35:30,922 INFO L246 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2019-12-07 18:35:30,922 INFO L246 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2019-12-07 18:35:30,922 INFO L246 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2019-12-07 18:35:30,922 INFO L246 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2019-12-07 18:35:30,922 INFO L246 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2019-12-07 18:35:30,922 INFO L246 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2019-12-07 18:35:30,922 INFO L246 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2019-12-07 18:35:30,922 INFO L246 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,922 INFO L246 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,922 INFO L246 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2019-12-07 18:35:30,922 INFO L246 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2019-12-07 18:35:30,922 INFO L246 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2019-12-07 18:35:30,922 INFO L246 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2019-12-07 18:35:30,922 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 18:35:30,922 INFO L246 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2019-12-07 18:35:30,923 INFO L246 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2019-12-07 18:35:30,923 INFO L246 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,923 INFO L246 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,923 INFO L246 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2019-12-07 18:35:30,923 INFO L246 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,923 INFO L246 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2019-12-07 18:35:30,923 INFO L242 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse1 (= ~a24~0 1))) (let ((.cse2 (not (= ~a21~0 9))) (.cse0 (let ((.cse3 (<= ~a15~0 5))) (or (and .cse1 .cse3) (and .cse3 (<= (+ ~a12~0 49) 0)))))) (or (and .cse0 .cse1) (and .cse1 (or (<= ~a12~0 11) (< 80 ~a12~0))) (and (<= 7 ~a15~0) .cse1 (<= ~a15~0 8)) (and .cse2 .cse1) (and .cse2 .cse0)))) [2019-12-07 18:35:30,923 INFO L246 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2019-12-07 18:35:30,923 INFO L246 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2019-12-07 18:35:30,923 INFO L246 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2019-12-07 18:35:30,923 INFO L246 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2019-12-07 18:35:30,923 INFO L246 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2019-12-07 18:35:30,923 INFO L246 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2019-12-07 18:35:30,923 INFO L246 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2019-12-07 18:35:30,924 INFO L246 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2019-12-07 18:35:30,924 INFO L246 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2019-12-07 18:35:30,924 INFO L246 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,924 INFO L246 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,924 INFO L246 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,924 INFO L246 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2019-12-07 18:35:30,924 INFO L246 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2019-12-07 18:35:30,924 INFO L246 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2019-12-07 18:35:30,924 INFO L246 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2019-12-07 18:35:30,924 INFO L246 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2019-12-07 18:35:30,924 INFO L246 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2019-12-07 18:35:30,924 INFO L246 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2019-12-07 18:35:30,924 INFO L246 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2019-12-07 18:35:30,924 INFO L246 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2019-12-07 18:35:30,924 INFO L246 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,924 INFO L246 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,925 INFO L246 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,925 INFO L246 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2019-12-07 18:35:30,925 INFO L246 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2019-12-07 18:35:30,925 INFO L246 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2019-12-07 18:35:30,925 INFO L246 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2019-12-07 18:35:30,925 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 18:35:30,925 INFO L246 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2019-12-07 18:35:30,925 INFO L246 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2019-12-07 18:35:30,925 INFO L246 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2019-12-07 18:35:30,925 INFO L246 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2019-12-07 18:35:30,925 INFO L246 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,925 INFO L246 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,925 INFO L246 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,925 INFO L246 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2019-12-07 18:35:30,925 INFO L246 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2019-12-07 18:35:30,925 INFO L246 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2019-12-07 18:35:30,926 INFO L246 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2019-12-07 18:35:30,926 INFO L246 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2019-12-07 18:35:30,926 INFO L246 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2019-12-07 18:35:30,926 INFO L246 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2019-12-07 18:35:30,926 INFO L246 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2019-12-07 18:35:30,926 INFO L246 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2019-12-07 18:35:30,926 INFO L246 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,926 INFO L246 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,926 INFO L246 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 18:35:30,926 INFO L246 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2019-12-07 18:35:30,926 INFO L246 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2019-12-07 18:35:30,926 INFO L246 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2019-12-07 18:35:30,926 INFO L246 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2019-12-07 18:35:30,926 INFO L246 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2019-12-07 18:35:30,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:35:30 BoogieIcfgContainer [2019-12-07 18:35:30,941 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:35:30,942 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:35:30,942 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:35:30,942 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:35:30,942 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:35:11" (3/4) ... [2019-12-07 18:35:30,944 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 18:35:30,961 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-07 18:35:30,962 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 18:35:31,051 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_665e1bab-fbfe-4fb2-8190-35006fa1ab45/bin/uautomizer/witness.graphml [2019-12-07 18:35:31,051 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:35:31,053 INFO L168 Benchmark]: Toolchain (without parser) took 20462.18 ms. Allocated memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: 1.1 GB). Free memory was 935.5 MB in the beginning and 1.1 GB in the end (delta: -130.5 MB). Peak memory consumption was 1.0 GB. Max. memory is 11.5 GB. [2019-12-07 18:35:31,053 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:35:31,053 INFO L168 Benchmark]: CACSL2BoogieTranslator took 392.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 205.0 MB). Free memory was 935.5 MB in the beginning and 1.2 GB in the end (delta: -236.9 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:35:31,053 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:35:31,054 INFO L168 Benchmark]: Boogie Preprocessor took 53.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:35:31,054 INFO L168 Benchmark]: RCFGBuilder took 811.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.0 GB in the end (delta: 134.1 MB). Peak memory consumption was 134.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:35:31,054 INFO L168 Benchmark]: TraceAbstraction took 19022.87 ms. Allocated memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: 926.4 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -76.5 MB). Peak memory consumption was 849.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:35:31,054 INFO L168 Benchmark]: Witness Printer took 110.02 ms. Allocated memory is still 2.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:35:31,056 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 392.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 205.0 MB). Free memory was 935.5 MB in the beginning and 1.2 GB in the end (delta: -236.9 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 67.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 811.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.0 GB in the end (delta: 134.1 MB). Peak memory consumption was 134.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 19022.87 ms. Allocated memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: 926.4 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -76.5 MB). Peak memory consumption was 849.9 MB. Max. memory is 11.5 GB. * Witness Printer took 110.02 ms. Allocated memory is still 2.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 169]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: ((((((a24 == 1 && a15 <= 5) || (a15 <= 5 && a12 + 49 <= 0)) && a24 == 1) || (a24 == 1 && (a12 <= 11 || 80 < a12))) || ((7 <= a15 && a24 == 1) && a15 <= 8)) || (!(a21 == 9) && a24 == 1)) || (!(a21 == 9) && ((a24 == 1 && a15 <= 5) || (a15 <= 5 && a12 + 49 <= 0))) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: ((((((a24 == 1 && a15 <= 5) || (a15 <= 5 && a12 + 49 <= 0)) && a24 == 1) || (a24 == 1 && (a12 <= 11 || 80 < a12))) || ((7 <= a15 && a24 == 1) && a15 <= 8)) || (!(a21 == 9) && a24 == 1)) || (!(a21 == 9) && ((a24 == 1 && a15 <= 5) || (a15 <= 5 && a12 + 49 <= 0))) - InvariantResult [Line: 874]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Result: SAFE, OverallTime: 18.4s, OverallIterations: 11, TraceHistogramMax: 8, AutomataDifference: 8.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, HoareTripleCheckerStatistics: 833 SDtfs, 5074 SDslu, 161 SDs, 0 SdLazy, 11030 SolverSat, 1237 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2462 GetRequests, 2396 SyntacticMatches, 5 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3920occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 2881 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 74 NumberOfFragments, 147 HoareAnnotationTreeSize, 3 FomulaSimplifications, 3590 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 4320 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 7902 NumberOfCodeBlocks, 7902 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 7886 ConstructedInterpolants, 0 QuantifiedInterpolants, 24403440 SizeOfPredicates, 11 NumberOfNonLiveVariables, 2997 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 16 InterpolantComputations, 10 PerfectInterpolantSequences, 15433/16227 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...