./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/gcd_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_46f781e8-5582-4605-8c88-8e9be4a4283a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_46f781e8-5582-4605-8c88-8e9be4a4283a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_46f781e8-5582-4605-8c88-8e9be4a4283a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_46f781e8-5582-4605-8c88-8e9be4a4283a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_46f781e8-5582-4605-8c88-8e9be4a4283a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_46f781e8-5582-4605-8c88-8e9be4a4283a/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 d5d419a3a7f083f15010050e5cf28b10f30a132d ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 02:49:30,852 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 02:49:30,854 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 02:49:30,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 02:49:30,871 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 02:49:30,872 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 02:49:30,874 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 02:49:30,883 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 02:49:30,887 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 02:49:30,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 02:49:30,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 02:49:30,894 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 02:49:30,894 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 02:49:30,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 02:49:30,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 02:49:30,900 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 02:49:30,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 02:49:30,901 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 02:49:30,904 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 02:49:30,908 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 02:49:30,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 02:49:30,915 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 02:49:30,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 02:49:30,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 02:49:30,922 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 02:49:30,922 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 02:49:30,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 02:49:30,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 02:49:30,924 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 02:49:30,925 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 02:49:30,925 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 02:49:30,926 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 02:49:30,927 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 02:49:30,928 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 02:49:30,929 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 02:49:30,929 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 02:49:30,930 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 02:49:30,930 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 02:49:30,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 02:49:30,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 02:49:30,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 02:49:30,933 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_46f781e8-5582-4605-8c88-8e9be4a4283a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 02:49:30,961 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 02:49:30,972 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 02:49:30,973 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 02:49:30,974 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 02:49:30,974 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 02:49:30,974 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 02:49:30,974 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 02:49:30,975 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 02:49:30,975 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 02:49:30,975 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 02:49:30,975 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 02:49:30,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 02:49:30,976 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 02:49:30,976 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 02:49:30,976 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 02:49:30,977 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 02:49:30,977 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 02:49:30,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 02:49:30,977 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 02:49:30,978 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 02:49:30,978 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 02:49:30,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 02:49:30,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 02:49:30,979 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 02:49:30,980 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 02:49:30,981 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 02:49:30,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 02:49:30,981 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 02:49:30,981 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_46f781e8-5582-4605-8c88-8e9be4a4283a/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 -> d5d419a3a7f083f15010050e5cf28b10f30a132d [2019-11-20 02:49:31,127 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 02:49:31,138 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 02:49:31,141 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 02:49:31,143 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 02:49:31,143 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 02:49:31,144 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_46f781e8-5582-4605-8c88-8e9be4a4283a/bin/uautomizer/../../sv-benchmarks/c/bitvector/gcd_1.c [2019-11-20 02:49:31,197 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_46f781e8-5582-4605-8c88-8e9be4a4283a/bin/uautomizer/data/947710ea9/2a4d6287520c42d0b8d4dbdad4f96f2b/FLAG607fd8da7 [2019-11-20 02:49:31,539 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 02:49:31,539 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_46f781e8-5582-4605-8c88-8e9be4a4283a/sv-benchmarks/c/bitvector/gcd_1.c [2019-11-20 02:49:31,545 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_46f781e8-5582-4605-8c88-8e9be4a4283a/bin/uautomizer/data/947710ea9/2a4d6287520c42d0b8d4dbdad4f96f2b/FLAG607fd8da7 [2019-11-20 02:49:31,932 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_46f781e8-5582-4605-8c88-8e9be4a4283a/bin/uautomizer/data/947710ea9/2a4d6287520c42d0b8d4dbdad4f96f2b [2019-11-20 02:49:31,935 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 02:49:31,936 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 02:49:31,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 02:49:31,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 02:49:31,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 02:49:31,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:49:31" (1/1) ... [2019-11-20 02:49:31,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cd093d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:49:31, skipping insertion in model container [2019-11-20 02:49:31,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:49:31" (1/1) ... [2019-11-20 02:49:31,961 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 02:49:31,986 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 02:49:32,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:49:32,228 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 02:49:32,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:49:32,341 INFO L192 MainTranslator]: Completed translation [2019-11-20 02:49:32,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:49:32 WrapperNode [2019-11-20 02:49:32,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 02:49:32,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 02:49:32,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 02:49:32,344 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 02:49:32,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:49:32" (1/1) ... [2019-11-20 02:49:32,358 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:49:32" (1/1) ... [2019-11-20 02:49:32,385 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 02:49:32,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 02:49:32,387 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 02:49:32,387 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 02:49:32,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:49:32" (1/1) ... [2019-11-20 02:49:32,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:49:32" (1/1) ... [2019-11-20 02:49:32,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:49:32" (1/1) ... [2019-11-20 02:49:32,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:49:32" (1/1) ... [2019-11-20 02:49:32,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:49:32" (1/1) ... [2019-11-20 02:49:32,424 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:49:32" (1/1) ... [2019-11-20 02:49:32,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:49:32" (1/1) ... [2019-11-20 02:49:32,428 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 02:49:32,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 02:49:32,432 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 02:49:32,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 02:49:32,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:49:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_46f781e8-5582-4605-8c88-8e9be4a4283a/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 02:49:32,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 02:49:32,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 02:49:32,725 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 02:49:32,726 INFO L285 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-20 02:49:32,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:49:32 BoogieIcfgContainer [2019-11-20 02:49:32,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 02:49:32,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 02:49:32,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 02:49:32,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 02:49:32,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 02:49:31" (1/3) ... [2019-11-20 02:49:32,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ceedbe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:49:32, skipping insertion in model container [2019-11-20 02:49:32,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:49:32" (2/3) ... [2019-11-20 02:49:32,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ceedbe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:49:32, skipping insertion in model container [2019-11-20 02:49:32,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:49:32" (3/3) ... [2019-11-20 02:49:32,736 INFO L109 eAbstractionObserver]: Analyzing ICFG gcd_1.c [2019-11-20 02:49:32,746 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 02:49:32,753 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 02:49:32,765 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 02:49:32,790 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 02:49:32,790 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 02:49:32,790 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 02:49:32,790 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 02:49:32,790 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 02:49:32,791 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 02:49:32,791 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 02:49:32,791 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 02:49:32,806 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-20 02:49:32,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 02:49:32,812 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:49:32,813 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:49:32,813 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:49:32,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:49:32,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1311742288, now seen corresponding path program 1 times [2019-11-20 02:49:32,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:49:32,829 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179917147] [2019-11-20 02:49:32,829 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:49:32,902 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-20 02:49:32,903 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [198701133] [2019-11-20 02:49:32,903 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_46f781e8-5582-4605-8c88-8e9be4a4283a/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 02:49:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:49:32,957 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 02:49:32,962 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:49:33,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:49:33,008 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179917147] [2019-11-20 02:49:33,008 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-20 02:49:33,008 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198701133] [2019-11-20 02:49:33,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:49:33,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 02:49:33,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108406640] [2019-11-20 02:49:33,016 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 02:49:33,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:49:33,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 02:49:33,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 02:49:33,033 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2019-11-20 02:49:33,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:49:33,061 INFO L93 Difference]: Finished difference Result 25 states and 34 transitions. [2019-11-20 02:49:33,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 02:49:33,063 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-20 02:49:33,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:49:33,071 INFO L225 Difference]: With dead ends: 25 [2019-11-20 02:49:33,071 INFO L226 Difference]: Without dead ends: 11 [2019-11-20 02:49:33,074 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 02:49:33,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-11-20 02:49:33,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-20 02:49:33,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-20 02:49:33,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2019-11-20 02:49:33,106 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 9 [2019-11-20 02:49:33,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:49:33,106 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2019-11-20 02:49:33,106 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 02:49:33,106 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2019-11-20 02:49:33,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 02:49:33,107 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:49:33,107 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:49:33,314 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 02:49:33,322 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:49:33,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:49:33,322 INFO L82 PathProgramCache]: Analyzing trace with hash -182643218, now seen corresponding path program 1 times [2019-11-20 02:49:33,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:49:33,323 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761461592] [2019-11-20 02:49:33,323 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:49:33,327 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-20 02:49:33,328 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [756323635] [2019-11-20 02:49:33,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_46f781e8-5582-4605-8c88-8e9be4a4283a/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 02:49:33,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:49:33,381 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-20 02:49:33,383 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:49:33,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:49:33,444 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761461592] [2019-11-20 02:49:33,444 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-20 02:49:33,444 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756323635] [2019-11-20 02:49:33,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-20 02:49:33,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2019-11-20 02:49:33,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879485722] [2019-11-20 02:49:33,447 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 02:49:33,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:49:33,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 02:49:33,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-20 02:49:33,448 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand 6 states. [2019-11-20 02:49:33,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:49:33,559 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2019-11-20 02:49:33,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 02:49:33,560 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-11-20 02:49:33,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:49:33,561 INFO L225 Difference]: With dead ends: 17 [2019-11-20 02:49:33,561 INFO L226 Difference]: Without dead ends: 12 [2019-11-20 02:49:33,562 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-20 02:49:33,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-20 02:49:33,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-20 02:49:33,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-20 02:49:33,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2019-11-20 02:49:33,565 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 10 [2019-11-20 02:49:33,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:49:33,566 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2019-11-20 02:49:33,566 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 02:49:33,566 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2019-11-20 02:49:33,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 02:49:33,567 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:49:33,567 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:49:33,775 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 02:49:33,776 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:49:33,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:49:33,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1315317778, now seen corresponding path program 2 times [2019-11-20 02:49:33,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:49:33,777 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395829931] [2019-11-20 02:49:33,777 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:49:33,783 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-20 02:49:33,784 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [175526920] [2019-11-20 02:49:33,784 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_46f781e8-5582-4605-8c88-8e9be4a4283a/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 02:50:22,202 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 02:50:22,202 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 02:50:22,205 WARN L253 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 44 conjunts are in the unsatisfiable core [2019-11-20 02:50:22,207 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:50:22,357 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 13 [2019-11-20 02:50:22,362 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:24,639 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 30 [2019-11-20 02:50:26,678 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:26,678 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:26,679 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:26,680 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:26,681 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:26,688 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:26,697 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:26,704 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:26,708 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:26,711 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:26,720 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:26,721 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:26,721 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:26,722 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:26,722 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:26,725 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:26,728 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:26,729 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:26,732 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:26,736 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:42,238 WARN L191 SmtUtils]: Spent 13.34 s on a formula simplification. DAG size of input: 154 DAG size of output: 28 [2019-11-20 02:50:42,243 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:42,244 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:42,244 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:42,245 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:42,247 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:42,249 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:42,252 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:42,253 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:42,253 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:42,255 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:42,258 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:42,295 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:50:42,296 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395829931] [2019-11-20 02:50:42,296 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-20 02:50:42,297 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175526920] [2019-11-20 02:50:42,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-20 02:50:42,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-11-20 02:50:42,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297519982] [2019-11-20 02:50:42,298 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 02:50:42,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:50:42,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 02:50:42,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=19, Unknown=2, NotChecked=0, Total=30 [2019-11-20 02:50:42,299 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand 6 states. [2019-11-20 02:50:53,709 WARN L191 SmtUtils]: Spent 4.13 s on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2019-11-20 02:50:55,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:50:55,793 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-11-20 02:50:55,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 02:50:55,794 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-11-20 02:50:55,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:50:55,794 INFO L225 Difference]: With dead ends: 21 [2019-11-20 02:50:55,794 INFO L226 Difference]: Without dead ends: 12 [2019-11-20 02:50:55,795 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 29.3s TimeCoverageRelationStatistics Valid=30, Invalid=57, Unknown=3, NotChecked=0, Total=90 [2019-11-20 02:50:55,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-20 02:50:55,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-20 02:50:55,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-20 02:50:55,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-11-20 02:50:55,798 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 11 [2019-11-20 02:50:55,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:50:55,798 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-11-20 02:50:55,798 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 02:50:55,798 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-11-20 02:50:55,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 02:50:55,799 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:50:55,799 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:50:56,000 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 02:50:56,000 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:50:56,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:50:56,000 INFO L82 PathProgramCache]: Analyzing trace with hash -635259408, now seen corresponding path program 1 times [2019-11-20 02:50:56,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:50:56,001 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232339157] [2019-11-20 02:50:56,001 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:50:56,005 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-20 02:50:56,005 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1585931632] [2019-11-20 02:50:56,005 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_46f781e8-5582-4605-8c88-8e9be4a4283a/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 02:50:56,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:50:56,043 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 22 conjunts are in the unsatisfiable core [2019-11-20 02:50:56,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:50:56,133 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,133 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,134 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,135 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,137 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,139 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,139 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,140 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,152 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,224 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,225 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,225 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,226 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,226 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,228 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,237 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,238 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,245 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,247 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,252 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,259 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,263 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,267 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,271 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,273 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,275 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,277 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,279 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,290 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,290 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,291 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,293 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,294 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,298 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,298 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,299 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,299 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,300 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,302 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,303 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,305 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,306 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,306 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,309 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,310 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,313 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,313 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,314 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,315 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,317 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,317 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,320 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,320 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,321 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,323 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,324 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:50:56,465 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:50:56,465 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232339157] [2019-11-20 02:50:56,465 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-20 02:50:56,465 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585931632] [2019-11-20 02:50:56,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-20 02:50:56,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2019-11-20 02:50:56,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796531721] [2019-11-20 02:50:56,467 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 02:50:56,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:50:56,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 02:50:56,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-20 02:50:56,468 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 6 states. [2019-11-20 02:50:56,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:50:56,483 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2019-11-20 02:50:56,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 02:50:56,484 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-11-20 02:50:56,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:50:56,484 INFO L225 Difference]: With dead ends: 12 [2019-11-20 02:50:56,485 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 02:50:56,485 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-20 02:50:56,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 02:50:56,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 02:50:56,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 02:50:56,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 02:50:56,486 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-11-20 02:50:56,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:50:56,486 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 02:50:56,486 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 02:50:56,486 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 02:50:56,486 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 02:50:56,687 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 02:50:56,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 02:50:56,712 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 02:50:56,712 INFO L444 ceAbstractionStarter]: For program point L17-1(lines 11 23) no Hoare annotation was computed. [2019-11-20 02:50:56,712 INFO L444 ceAbstractionStarter]: For program point L17-2(lines 17 21) no Hoare annotation was computed. [2019-11-20 02:50:56,712 INFO L447 ceAbstractionStarter]: At program point L38(lines 26 39) the Hoare annotation is: true [2019-11-20 02:50:56,712 INFO L444 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-11-20 02:50:56,712 INFO L444 ceAbstractionStarter]: For program point L32(lines 32 36) no Hoare annotation was computed. [2019-11-20 02:50:56,712 INFO L447 ceAbstractionStarter]: At program point L32-1(lines 32 36) the Hoare annotation is: true [2019-11-20 02:50:56,713 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 02:50:56,713 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 02:50:56,713 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-11-20 02:50:56,713 INFO L440 ceAbstractionStarter]: At program point L22(lines 10 23) the Hoare annotation is: (and (= ULTIMATE.start_gcd_test_~a ULTIMATE.start_main_~y~0) (= |ULTIMATE.start_gcd_test_#res| ULTIMATE.start_main_~y~0)) [2019-11-20 02:50:56,713 INFO L444 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2019-11-20 02:50:56,713 INFO L444 ceAbstractionStarter]: For program point L14-2(lines 11 23) no Hoare annotation was computed. [2019-11-20 02:50:56,713 INFO L444 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2019-11-20 02:50:56,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 02:50:56 BoogieIcfgContainer [2019-11-20 02:50:56,723 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 02:50:56,724 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 02:50:56,724 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 02:50:56,724 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 02:50:56,724 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:49:32" (3/4) ... [2019-11-20 02:50:56,727 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 02:50:56,735 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-20 02:50:56,735 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 02:50:56,757 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: a == y && \result == y [2019-11-20 02:50:56,774 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_46f781e8-5582-4605-8c88-8e9be4a4283a/bin/uautomizer/witness.graphml [2019-11-20 02:50:56,774 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 02:50:56,776 INFO L168 Benchmark]: Toolchain (without parser) took 84839.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 950.1 MB in the beginning and 791.9 MB in the end (delta: 158.2 MB). Peak memory consumption was 265.2 MB. Max. memory is 11.5 GB. [2019-11-20 02:50:56,776 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:50:56,777 INFO L168 Benchmark]: CACSL2BoogieTranslator took 402.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -147.4 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-20 02:50:56,777 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.96 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:50:56,777 INFO L168 Benchmark]: Boogie Preprocessor took 45.54 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:50:56,778 INFO L168 Benchmark]: RCFGBuilder took 295.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-20 02:50:56,778 INFO L168 Benchmark]: TraceAbstraction took 83994.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 791.9 MB in the end (delta: 281.6 MB). Peak memory consumption was 281.6 MB. Max. memory is 11.5 GB. [2019-11-20 02:50:56,779 INFO L168 Benchmark]: Witness Printer took 50.75 ms. Allocated memory is still 1.1 GB. Free memory is still 791.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:50:56,781 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 402.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -147.4 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.96 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.54 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 295.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 83994.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 791.9 MB in the end (delta: 281.6 MB). Peak memory consumption was 281.6 MB. Max. memory is 11.5 GB. * Witness Printer took 50.75 ms. Allocated memory is still 1.1 GB. Free memory is still 791.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: a == y && \result == y - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Result: SAFE, OverallTime: 83.9s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 13.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 28 SDtfs, 22 SDslu, 37 SDs, 0 SdLazy, 70 SolverSat, 4 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 21 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 29.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 9 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 48.4s SatisfiabilityAnalysisTime, 20.6s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 37 ConstructedInterpolants, 4 QuantifiedInterpolants, 3533 SizeOfPredicates, 21 NumberOfNonLiveVariables, 195 ConjunctsInSsa, 88 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 4/7 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...