./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/fermat1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_68c45fcc-d1d4-4d38-ad70-be7602b47784/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_68c45fcc-d1d4-4d38-ad70-be7602b47784/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_68c45fcc-d1d4-4d38-ad70-be7602b47784/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_68c45fcc-d1d4-4d38-ad70-be7602b47784/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench/fermat1.c -s /tmp/vcloud-vcloud-master/worker/working_dir_68c45fcc-d1d4-4d38-ad70-be7602b47784/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_68c45fcc-d1d4-4d38-ad70-be7602b47784/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 22d7788319b1f6b53f5835e05bcfc3e9bca79d79 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:55:54,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:55:54,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:55:54,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:55:54,594 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:55:54,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:55:54,597 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:55:54,600 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:55:54,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:55:54,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:55:54,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:55:54,619 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:55:54,620 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:55:54,621 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:55:54,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:55:54,622 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:55:54,623 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:55:54,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:55:54,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:55:54,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:55:54,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:55:54,641 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:55:54,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:55:54,642 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:55:54,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:55:54,644 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:55:54,644 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:55:54,644 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:55:54,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:55:54,645 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:55:54,645 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:55:54,646 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:55:54,646 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:55:54,647 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:55:54,647 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:55:54,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:55:54,648 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:55:54,652 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:55:54,652 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:55:54,653 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:55:54,654 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:55:54,654 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_68c45fcc-d1d4-4d38-ad70-be7602b47784/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:55:54,670 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:55:54,670 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:55:54,671 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:55:54,672 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:55:54,675 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:55:54,676 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:55:54,676 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:55:54,676 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:55:54,676 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:55:54,676 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:55:54,677 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:55:54,677 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:55:54,677 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:55:54,677 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:55:54,677 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:55:54,678 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:55:54,678 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:55:54,678 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:55:54,678 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:55:54,678 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:55:54,679 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:55:54,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:55:54,679 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:55:54,679 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:55:54,679 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:55:54,680 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:55:54,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:55:54,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:55:54,681 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/working_dir_68c45fcc-d1d4-4d38-ad70-be7602b47784/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 -> 22d7788319b1f6b53f5835e05bcfc3e9bca79d79 [2019-10-22 08:55:54,724 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:55:54,736 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:55:54,739 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:55:54,741 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:55:54,741 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:55:54,742 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_68c45fcc-d1d4-4d38-ad70-be7602b47784/bin/uautomizer/../../sv-benchmarks/c/nla-digbench/fermat1.c [2019-10-22 08:55:54,802 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_68c45fcc-d1d4-4d38-ad70-be7602b47784/bin/uautomizer/data/08944ca5a/2993cffd3c484ca8a758a91e2ca771a5/FLAG080aa5074 [2019-10-22 08:55:55,159 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:55:55,159 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_68c45fcc-d1d4-4d38-ad70-be7602b47784/sv-benchmarks/c/nla-digbench/fermat1.c [2019-10-22 08:55:55,169 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_68c45fcc-d1d4-4d38-ad70-be7602b47784/bin/uautomizer/data/08944ca5a/2993cffd3c484ca8a758a91e2ca771a5/FLAG080aa5074 [2019-10-22 08:55:55,544 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_68c45fcc-d1d4-4d38-ad70-be7602b47784/bin/uautomizer/data/08944ca5a/2993cffd3c484ca8a758a91e2ca771a5 [2019-10-22 08:55:55,547 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:55:55,548 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:55:55,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:55,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:55:55,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:55:55,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:55" (1/1) ... [2019-10-22 08:55:55,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43a9ed7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:55, skipping insertion in model container [2019-10-22 08:55:55,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:55" (1/1) ... [2019-10-22 08:55:55,560 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:55:55,575 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:55:55,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:55,745 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:55:55,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:55,854 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:55:55,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:55 WrapperNode [2019-10-22 08:55:55,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:55,855 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:55,855 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:55:55,855 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:55:55,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:55" (1/1) ... [2019-10-22 08:55:55,868 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:55" (1/1) ... [2019-10-22 08:55:55,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:55,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:55:55,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:55:55,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:55:55,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:55" (1/1) ... [2019-10-22 08:55:55,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:55" (1/1) ... [2019-10-22 08:55:55,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:55" (1/1) ... [2019-10-22 08:55:55,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:55" (1/1) ... [2019-10-22 08:55:55,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:55" (1/1) ... [2019-10-22 08:55:55,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:55" (1/1) ... [2019-10-22 08:55:55,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:55" (1/1) ... [2019-10-22 08:55:55,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:55:55,918 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:55:55,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:55:55,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:55:55,919 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68c45fcc-d1d4-4d38-ad70-be7602b47784/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 [2019-10-22 08:55:55,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:55:55,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:55:56,180 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:55:56,181 INFO L284 CfgBuilder]: Removed 15 assume(true) statements. [2019-10-22 08:55:56,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:56 BoogieIcfgContainer [2019-10-22 08:55:56,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:55:56,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:55:56,184 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:55:56,201 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:55:56,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:55:55" (1/3) ... [2019-10-22 08:55:56,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c5258c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:56, skipping insertion in model container [2019-10-22 08:55:56,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:55" (2/3) ... [2019-10-22 08:55:56,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c5258c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:56, skipping insertion in model container [2019-10-22 08:55:56,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:56" (3/3) ... [2019-10-22 08:55:56,206 INFO L109 eAbstractionObserver]: Analyzing ICFG fermat1.c [2019-10-22 08:55:56,224 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:55:56,233 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-10-22 08:55:56,249 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-10-22 08:55:56,273 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:55:56,273 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:55:56,274 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:55:56,274 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:55:56,274 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:55:56,274 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:55:56,275 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:55:56,275 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:55:56,292 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-10-22 08:55:56,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 08:55:56,298 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:56,299 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 08:55:56,301 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:56,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:56,308 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-10-22 08:55:56,317 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:56,317 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634901454] [2019-10-22 08:55:56,317 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:56,318 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:56,318 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:56,378 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-22 08:55:56,379 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [730353781] [2019-10-22 08:55:56,379 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68c45fcc-d1d4-4d38-ad70-be7602b47784/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 [2019-10-22 08:55:56,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:56,411 WARN L254 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 14 conjunts are in the unsatisfiable core [2019-10-22 08:55:56,415 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:55:56,599 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 25 [2019-10-22 08:55:56,614 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:55:56,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:56,700 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634901454] [2019-10-22 08:55:56,700 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-22 08:55:56,700 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730353781] [2019-10-22 08:55:56,701 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:56,701 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:55:56,701 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536551425] [2019-10-22 08:55:56,706 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:55:56,707 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:56,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:55:56,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:55:56,724 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 4 states. [2019-10-22 08:56:04,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:04,218 INFO L93 Difference]: Finished difference Result 68 states and 108 transitions. [2019-10-22 08:56:04,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:56:04,221 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-10-22 08:56:04,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:04,231 INFO L225 Difference]: With dead ends: 68 [2019-10-22 08:56:04,232 INFO L226 Difference]: Without dead ends: 37 [2019-10-22 08:56:04,235 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:56:04,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-10-22 08:56:04,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 29. [2019-10-22 08:56:04,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-10-22 08:56:04,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2019-10-22 08:56:04,271 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 4 [2019-10-22 08:56:04,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:04,271 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2019-10-22 08:56:04,271 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:56:04,271 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2019-10-22 08:56:04,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 08:56:04,272 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:04,272 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:04,473 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:56:04,473 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:04,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:04,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1360971675, now seen corresponding path program 1 times [2019-10-22 08:56:04,474 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:04,474 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932059678] [2019-10-22 08:56:04,474 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:04,475 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:04,475 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:04,477 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-22 08:56:04,478 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [377433897] [2019-10-22 08:56:04,478 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68c45fcc-d1d4-4d38-ad70-be7602b47784/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 [2019-10-22 08:56:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:04,501 WARN L254 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 14 conjunts are in the unsatisfiable core [2019-10-22 08:56:04,502 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:56:09,148 WARN L191 SmtUtils]: Spent 4.60 s on a formula simplification that was a NOOP. DAG size: 30 [2019-10-22 08:56:09,150 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:56:09,327 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:56:09,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:09,346 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932059678] [2019-10-22 08:56:09,346 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-22 08:56:09,347 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377433897] [2019-10-22 08:56:09,347 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:09,347 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:56:09,347 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290626221] [2019-10-22 08:56:09,349 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:56:09,349 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:09,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:56:09,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:56:09,350 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand 7 states. [2019-10-22 08:56:11,448 WARN L191 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2019-10-22 08:56:11,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:11,682 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2019-10-22 08:56:11,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:56:11,683 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2019-10-22 08:56:11,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:11,683 INFO L225 Difference]: With dead ends: 30 [2019-10-22 08:56:11,683 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:56:11,684 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:56:11,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:56:11,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:56:11,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:56:11,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:56:11,685 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-10-22 08:56:11,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:11,685 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:56:11,685 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:56:11,686 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:56:11,686 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:56:11,886 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:56:11,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 08:56:20,018 WARN L191 SmtUtils]: Spent 8.04 s on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2019-10-22 08:56:20,031 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-10-22 08:56:20,031 INFO L443 ceAbstractionStarter]: For program point L7(lines 7 10) no Hoare annotation was computed. [2019-10-22 08:56:20,031 INFO L439 ceAbstractionStarter]: At program point L7-2(lines 30 31) the Hoare annotation is: (and (exists ((ULTIMATE.start_main_~R~0 Int)) (< (let ((.cse0 (+ ULTIMATE.start_main_~R~0 (- 1)))) (* .cse0 .cse0)) ULTIMATE.start_main_~A~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* 2 ULTIMATE.start_main_~u~0) (* 4 ULTIMATE.start_main_~A~0) (* 4 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~v~0)) (+ (* 2 ULTIMATE.start_main_~v~0) (* ULTIMATE.start_main_~u~0 ULTIMATE.start_main_~u~0)))) [2019-10-22 08:56:20,032 INFO L443 ceAbstractionStarter]: For program point L7-3(lines 7 10) no Hoare annotation was computed. [2019-10-22 08:56:20,032 INFO L439 ceAbstractionStarter]: At program point L7-5(lines 35 36) the Hoare annotation is: (and (exists ((ULTIMATE.start_main_~R~0 Int)) (< (let ((.cse0 (+ ULTIMATE.start_main_~R~0 (- 1)))) (* .cse0 .cse0)) ULTIMATE.start_main_~A~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* 2 ULTIMATE.start_main_~u~0) (* 4 ULTIMATE.start_main_~A~0) (* 4 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~v~0)) (+ (* 2 ULTIMATE.start_main_~v~0) (* ULTIMATE.start_main_~u~0 ULTIMATE.start_main_~u~0)))) [2019-10-22 08:56:20,032 INFO L443 ceAbstractionStarter]: For program point L7-6(lines 7 10) no Hoare annotation was computed. [2019-10-22 08:56:20,032 INFO L439 ceAbstractionStarter]: At program point L7-8(lines 43 44) the Hoare annotation is: (and (exists ((ULTIMATE.start_main_~R~0 Int)) (< (let ((.cse0 (+ ULTIMATE.start_main_~R~0 (- 1)))) (* .cse0 .cse0)) ULTIMATE.start_main_~A~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* 2 ULTIMATE.start_main_~u~0) (* 4 ULTIMATE.start_main_~A~0) (* 4 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~v~0)) (+ (* 2 ULTIMATE.start_main_~v~0) (* ULTIMATE.start_main_~u~0 ULTIMATE.start_main_~u~0)))) [2019-10-22 08:56:20,032 INFO L443 ceAbstractionStarter]: For program point L7-9(lines 7 10) no Hoare annotation was computed. [2019-10-22 08:56:20,032 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 08:56:20,033 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 08:56:20,033 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-10-22 08:56:20,033 INFO L446 ceAbstractionStarter]: At program point L7-11(lines 6 12) the Hoare annotation is: true [2019-10-22 08:56:20,033 INFO L443 ceAbstractionStarter]: For program point L28-2(lines 28 48) no Hoare annotation was computed. [2019-10-22 08:56:20,033 INFO L443 ceAbstractionStarter]: For program point L8(lines 8 9) no Hoare annotation was computed. [2019-10-22 08:56:20,033 INFO L443 ceAbstractionStarter]: For program point L41-1(lines 28 48) no Hoare annotation was computed. [2019-10-22 08:56:20,033 INFO L443 ceAbstractionStarter]: For program point L8-1(lines 8 9) no Hoare annotation was computed. [2019-10-22 08:56:20,034 INFO L439 ceAbstractionStarter]: At program point L41-2(lines 28 48) the Hoare annotation is: (let ((.cse1 (= (+ (* 2 ULTIMATE.start_main_~u~0) (* 4 ULTIMATE.start_main_~A~0) (* 4 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~v~0)) (+ (* 2 ULTIMATE.start_main_~v~0) (* ULTIMATE.start_main_~u~0 ULTIMATE.start_main_~u~0))))) (or (and (exists ((ULTIMATE.start_main_~R~0 Int)) (< (let ((.cse0 (+ ULTIMATE.start_main_~R~0 (- 1)))) (* .cse0 .cse0)) ULTIMATE.start_main_~A~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse1) (let ((.cse2 (div (+ (- ULTIMATE.start_main_~u~0) 1) (- 2)))) (and (= 1 (mod ULTIMATE.start_main_~A~0 2)) (= (+ ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0) (* .cse2 .cse2)) (< (let ((.cse3 (+ .cse2 (- 1)))) (* .cse3 .cse3)) ULTIMATE.start_main_~A~0) (= ULTIMATE.start_main_~v~0 1) .cse1)))) [2019-10-22 08:56:20,034 INFO L443 ceAbstractionStarter]: For program point L8-2(lines 8 9) no Hoare annotation was computed. [2019-10-22 08:56:20,034 INFO L443 ceAbstractionStarter]: For program point L8-3(lines 8 9) no Hoare annotation was computed. [2019-10-22 08:56:20,034 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 08:56:20,034 INFO L439 ceAbstractionStarter]: At program point L33-2(lines 33 39) the Hoare annotation is: (and (exists ((ULTIMATE.start_main_~R~0 Int)) (< (let ((.cse0 (+ ULTIMATE.start_main_~R~0 (- 1)))) (* .cse0 .cse0)) ULTIMATE.start_main_~A~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* 2 ULTIMATE.start_main_~u~0) (* 4 ULTIMATE.start_main_~A~0) (* 4 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~v~0)) (+ (* 2 ULTIMATE.start_main_~v~0) (* ULTIMATE.start_main_~u~0 ULTIMATE.start_main_~u~0)))) [2019-10-22 08:56:20,034 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-10-22 08:56:20,034 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-10-22 08:56:20,034 INFO L446 ceAbstractionStarter]: At program point L51(lines 14 52) the Hoare annotation is: true [2019-10-22 08:56:20,040 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,041 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,046 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,046 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,047 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,047 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,048 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,048 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,049 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,049 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,050 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,050 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,052 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,052 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,053 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,054 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,054 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,055 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,055 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,055 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:56:20 BoogieIcfgContainer [2019-10-22 08:56:20,058 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:56:20,058 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:56:20,059 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:56:20,059 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:56:20,059 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:56" (3/4) ... [2019-10-22 08:56:20,063 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:56:20,073 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-10-22 08:56:20,073 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 08:56:20,102 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists ULTIMATE.start_main_~R~0 : int :: (ULTIMATE.start_main_~R~0 + -1) * (ULTIMATE.start_main_~R~0 + -1) < A) && 1 == cond) && 2 * u + 4 * A + 4 * r + v * v == 2 * v + u * u) || ((((1 == A % 2 && A + r == (-u + 1) / -2 * ((-u + 1) / -2)) && ((-u + 1) / -2 + -1) * ((-u + 1) / -2 + -1) < A) && v == 1) && 2 * u + 4 * A + 4 * r + v * v == 2 * v + u * u) [2019-10-22 08:56:20,102 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists ULTIMATE.start_main_~R~0 : int :: (ULTIMATE.start_main_~R~0 + -1) * (ULTIMATE.start_main_~R~0 + -1) < A) && 1 == cond) && 2 * u + 4 * A + 4 * r + v * v == 2 * v + u * u [2019-10-22 08:56:20,102 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists ULTIMATE.start_main_~R~0 : int :: (ULTIMATE.start_main_~R~0 + -1) * (ULTIMATE.start_main_~R~0 + -1) < A) && 1 == cond) && 2 * u + 4 * A + 4 * r + v * v == 2 * v + u * u [2019-10-22 08:56:20,103 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists ULTIMATE.start_main_~R~0 : int :: (ULTIMATE.start_main_~R~0 + -1) * (ULTIMATE.start_main_~R~0 + -1) < A) && 1 == cond) && 2 * u + 4 * A + 4 * r + v * v == 2 * v + u * u [2019-10-22 08:56:20,103 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists ULTIMATE.start_main_~R~0 : int :: (ULTIMATE.start_main_~R~0 + -1) * (ULTIMATE.start_main_~R~0 + -1) < A) && 1 == cond) && 2 * u + 4 * A + 4 * r + v * v == 2 * v + u * u [2019-10-22 08:56:20,126 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_68c45fcc-d1d4-4d38-ad70-be7602b47784/bin/uautomizer/witness.graphml [2019-10-22 08:56:20,126 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:56:20,128 INFO L168 Benchmark]: Toolchain (without parser) took 24579.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 944.5 MB in the beginning and 1.0 GB in the end (delta: -66.5 MB). Peak memory consumption was 82.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:20,128 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:20,129 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -197.9 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:20,129 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:20,129 INFO L168 Benchmark]: Boogie Preprocessor took 32.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:20,130 INFO L168 Benchmark]: RCFGBuilder took 264.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:20,130 INFO L168 Benchmark]: TraceAbstraction took 23874.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 99.8 MB). Peak memory consumption was 99.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:20,131 INFO L168 Benchmark]: Witness Printer took 67.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:20,133 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 305.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -197.9 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 264.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 23874.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 99.8 MB). Peak memory consumption was 99.8 MB. Max. memory is 11.5 GB. * Witness Printer took 67.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 43]: Loop Invariant [2019-10-22 08:56:20,141 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,141 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,142 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,142 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] Derived loop invariant: ((\exists ULTIMATE.start_main_~R~0 : int :: (ULTIMATE.start_main_~R~0 + -1) * (ULTIMATE.start_main_~R~0 + -1) < A) && 1 == cond) && 2 * u + 4 * A + 4 * r + v * v == 2 * v + u * u - InvariantResult [Line: 33]: Loop Invariant [2019-10-22 08:56:20,142 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,143 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,143 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,143 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] Derived loop invariant: ((\exists ULTIMATE.start_main_~R~0 : int :: (ULTIMATE.start_main_~R~0 + -1) * (ULTIMATE.start_main_~R~0 + -1) < A) && 1 == cond) && 2 * u + 4 * A + 4 * r + v * v == 2 * v + u * u - InvariantResult [Line: 30]: Loop Invariant [2019-10-22 08:56:20,144 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,144 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,144 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,144 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] Derived loop invariant: ((\exists ULTIMATE.start_main_~R~0 : int :: (ULTIMATE.start_main_~R~0 + -1) * (ULTIMATE.start_main_~R~0 + -1) < A) && 1 == cond) && 2 * u + 4 * A + 4 * r + v * v == 2 * v + u * u - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant [2019-10-22 08:56:20,145 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,145 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,146 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,146 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] Derived loop invariant: (((\exists ULTIMATE.start_main_~R~0 : int :: (ULTIMATE.start_main_~R~0 + -1) * (ULTIMATE.start_main_~R~0 + -1) < A) && 1 == cond) && 2 * u + 4 * A + 4 * r + v * v == 2 * v + u * u) || ((((1 == A % 2 && A + r == (-u + 1) / -2 * ((-u + 1) / -2)) && ((-u + 1) / -2 + -1) * ((-u + 1) / -2 + -1) < A) && v == 1) && 2 * u + 4 * A + 4 * r + v * v == 2 * v + u * u) - InvariantResult [Line: 35]: Loop Invariant [2019-10-22 08:56:20,147 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,147 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,148 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:56:20,148 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] Derived loop invariant: ((\exists ULTIMATE.start_main_~R~0 : int :: (ULTIMATE.start_main_~R~0 + -1) * (ULTIMATE.start_main_~R~0 + -1) < A) && 1 == cond) && 2 * u + 4 * A + 4 * r + v * v == 2 * v + u * u - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 4 error locations. Result: SAFE, OverallTime: 23.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 9.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.1s, HoareTripleCheckerStatistics: 16 SDtfs, 51 SDslu, 28 SDs, 0 SdLazy, 63 SolverSat, 30 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 7.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=1, 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, 2 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 22 NumberOfFragments, 244 HoareAnnotationTreeSize, 7 FomulaSimplifications, 547 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 17 FormulaSimplificationTreeSizeReductionInter, 8.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 4 QuantifiedInterpolants, 1050 SizeOfPredicates, 16 NumberOfNonLiveVariables, 41 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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...