./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/zonotope_tight.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8520565f-8ca2-430d-9738-2e2199a544cb/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8520565f-8ca2-430d-9738-2e2199a544cb/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8520565f-8ca2-430d-9738-2e2199a544cb/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8520565f-8ca2-430d-9738-2e2199a544cb/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_tight.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8520565f-8ca2-430d-9738-2e2199a544cb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8520565f-8ca2-430d-9738-2e2199a544cb/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7de8352890f1d55270cdee8daa00c3bfaf4226ea ..................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8520565f-8ca2-430d-9738-2e2199a544cb/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8520565f-8ca2-430d-9738-2e2199a544cb/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8520565f-8ca2-430d-9738-2e2199a544cb/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8520565f-8ca2-430d-9738-2e2199a544cb/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_tight.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8520565f-8ca2-430d-9738-2e2199a544cb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8520565f-8ca2-430d-9738-2e2199a544cb/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7de8352890f1d55270cdee8daa00c3bfaf4226ea ......................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 21:08:08,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 21:08:08,567 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 21:08:08,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 21:08:08,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 21:08:08,576 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 21:08:08,577 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 21:08:08,579 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 21:08:08,580 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 21:08:08,581 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 21:08:08,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 21:08:08,583 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 21:08:08,583 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 21:08:08,584 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 21:08:08,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 21:08:08,586 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 21:08:08,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 21:08:08,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 21:08:08,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 21:08:08,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 21:08:08,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 21:08:08,593 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 21:08:08,594 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 21:08:08,595 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 21:08:08,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 21:08:08,597 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 21:08:08,597 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 21:08:08,598 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 21:08:08,598 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 21:08:08,599 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 21:08:08,599 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 21:08:08,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 21:08:08,600 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 21:08:08,600 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 21:08:08,601 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 21:08:08,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 21:08:08,602 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 21:08:08,602 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 21:08:08,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 21:08:08,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 21:08:08,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 21:08:08,603 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8520565f-8ca2-430d-9738-2e2199a544cb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 21:08:08,613 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 21:08:08,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 21:08:08,614 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 21:08:08,614 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 21:08:08,614 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 21:08:08,614 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 21:08:08,614 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 21:08:08,614 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 21:08:08,614 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 21:08:08,614 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 21:08:08,615 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 21:08:08,615 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 21:08:08,615 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 21:08:08,615 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 21:08:08,615 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 21:08:08,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 21:08:08,616 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 21:08:08,616 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 21:08:08,616 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 21:08:08,616 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 21:08:08,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 21:08:08,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 21:08:08,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 21:08:08,617 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 21:08:08,617 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 21:08:08,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 21:08:08,617 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 21:08:08,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 21:08:08,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 21:08:08,617 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 21:08:08,617 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 21:08:08,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 21:08:08,618 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 21:08:08,618 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 21:08:08,618 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 21:08:08,618 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 21:08:08,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 21:08:08,618 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 21:08:08,618 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 21:08:08,618 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 21:08:08,618 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_8520565f-8ca2-430d-9738-2e2199a544cb/bin/utaipan 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 -> Taipan 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 -> 7de8352890f1d55270cdee8daa00c3bfaf4226ea [2019-12-07 21:08:08,715 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 21:08:08,724 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 21:08:08,726 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 21:08:08,727 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 21:08:08,728 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 21:08:08,728 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8520565f-8ca2-430d-9738-2e2199a544cb/bin/utaipan/../../sv-benchmarks/c/float-benchs/zonotope_tight.c [2019-12-07 21:08:08,767 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8520565f-8ca2-430d-9738-2e2199a544cb/bin/utaipan/data/2c2a47e0e/7f27c2bdf5b6437aa0d2c38b8deb8d7b/FLAGc7943b29b [2019-12-07 21:08:09,077 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 21:08:09,078 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8520565f-8ca2-430d-9738-2e2199a544cb/sv-benchmarks/c/float-benchs/zonotope_tight.c [2019-12-07 21:08:09,081 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8520565f-8ca2-430d-9738-2e2199a544cb/bin/utaipan/data/2c2a47e0e/7f27c2bdf5b6437aa0d2c38b8deb8d7b/FLAGc7943b29b [2019-12-07 21:08:09,090 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8520565f-8ca2-430d-9738-2e2199a544cb/bin/utaipan/data/2c2a47e0e/7f27c2bdf5b6437aa0d2c38b8deb8d7b [2019-12-07 21:08:09,092 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 21:08:09,092 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 21:08:09,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 21:08:09,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 21:08:09,095 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 21:08:09,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:08:09" (1/1) ... [2019-12-07 21:08:09,098 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c51c803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:08:09, skipping insertion in model container [2019-12-07 21:08:09,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:08:09" (1/1) ... [2019-12-07 21:08:09,103 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 21:08:09,116 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 21:08:09,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:08:09,225 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 21:08:09,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:08:09,283 INFO L208 MainTranslator]: Completed translation [2019-12-07 21:08:09,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:08:09 WrapperNode [2019-12-07 21:08:09,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 21:08:09,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 21:08:09,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 21:08:09,285 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 21:08:09,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:08:09" (1/1) ... [2019-12-07 21:08:09,297 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:08:09" (1/1) ... [2019-12-07 21:08:09,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 21:08:09,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 21:08:09,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 21:08:09,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 21:08:09,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:08:09" (1/1) ... [2019-12-07 21:08:09,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:08:09" (1/1) ... [2019-12-07 21:08:09,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:08:09" (1/1) ... [2019-12-07 21:08:09,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:08:09" (1/1) ... [2019-12-07 21:08:09,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:08:09" (1/1) ... [2019-12-07 21:08:09,322 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:08:09" (1/1) ... [2019-12-07 21:08:09,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:08:09" (1/1) ... [2019-12-07 21:08:09,324 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 21:08:09,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 21:08:09,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 21:08:09,324 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 21:08:09,325 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:08:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8520565f-8ca2-430d-9738-2e2199a544cb/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 21:08:09,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 21:08:09,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 21:08:09,471 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 21:08:09,471 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 21:08:09,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:08:09 BoogieIcfgContainer [2019-12-07 21:08:09,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 21:08:09,472 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 21:08:09,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 21:08:09,474 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 21:08:09,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 09:08:09" (1/3) ... [2019-12-07 21:08:09,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2570f951 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:08:09, skipping insertion in model container [2019-12-07 21:08:09,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:08:09" (2/3) ... [2019-12-07 21:08:09,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2570f951 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:08:09, skipping insertion in model container [2019-12-07 21:08:09,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:08:09" (3/3) ... [2019-12-07 21:08:09,476 INFO L109 eAbstractionObserver]: Analyzing ICFG zonotope_tight.c [2019-12-07 21:08:09,483 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 21:08:09,486 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 21:08:09,493 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 21:08:09,507 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 21:08:09,507 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 21:08:09,507 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 21:08:09,507 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 21:08:09,508 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 21:08:09,508 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 21:08:09,508 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 21:08:09,508 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 21:08:09,516 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-12-07 21:08:09,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-07 21:08:09,519 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:08:09,520 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-07 21:08:09,520 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:08:09,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:08:09,523 INFO L82 PathProgramCache]: Analyzing trace with hash 56092, now seen corresponding path program 1 times [2019-12-07 21:08:09,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 21:08:09,529 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114861146] [2019-12-07 21:08:09,529 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 21:08:09,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 21:08:09,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 21:08:09,602 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 21:08:09,602 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 21:08:09,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 09:08:09 BoogieIcfgContainer [2019-12-07 21:08:09,612 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 21:08:09,612 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 21:08:09,612 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 21:08:09,613 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 21:08:09,613 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:08:09" (3/4) ... [2019-12-07 21:08:09,615 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 21:08:09,615 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 21:08:09,617 INFO L168 Benchmark]: Toolchain (without parser) took 523.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -115.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:08:09,617 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:08:09,618 INFO L168 Benchmark]: CACSL2BoogieTranslator took 190.95 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -148.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-12-07 21:08:09,618 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.32 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. [2019-12-07 21:08:09,618 INFO L168 Benchmark]: Boogie Preprocessor took 12.00 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. [2019-12-07 21:08:09,619 INFO L168 Benchmark]: RCFGBuilder took 147.90 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: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 11.5 GB. [2019-12-07 21:08:09,619 INFO L168 Benchmark]: TraceAbstraction took 139.75 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-12-07 21:08:09,619 INFO L168 Benchmark]: Witness Printer took 2.80 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. [2019-12-07 21:08:09,621 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 190.95 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -148.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.32 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 12.00 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 147.90 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: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 139.75 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Witness Printer took 2.80 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 16, overapproximation of someBinaryArithmeticDOUBLEoperation at line 18. Possible FailurePath: [L13] double x,y; [L15] x = __VERIFIER_nondet_double() [L18] y = x*x - x [L19] COND TRUE y >= 0 [L19] y = x / 10. [L9] COND TRUE !(cond) [L9] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 21:08:10,968 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 21:08:10,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 21:08:10,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 21:08:10,978 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 21:08:10,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 21:08:10,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 21:08:10,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 21:08:10,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 21:08:10,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 21:08:10,985 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 21:08:10,987 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 21:08:10,987 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 21:08:10,988 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 21:08:10,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 21:08:10,990 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 21:08:10,991 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 21:08:10,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 21:08:10,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 21:08:10,995 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 21:08:10,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 21:08:10,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 21:08:10,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 21:08:11,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 21:08:11,002 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 21:08:11,002 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 21:08:11,003 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 21:08:11,003 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 21:08:11,004 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 21:08:11,005 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 21:08:11,005 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 21:08:11,006 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 21:08:11,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 21:08:11,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 21:08:11,007 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 21:08:11,008 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 21:08:11,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 21:08:11,008 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 21:08:11,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 21:08:11,009 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 21:08:11,010 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 21:08:11,011 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8520565f-8ca2-430d-9738-2e2199a544cb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 21:08:11,022 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 21:08:11,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 21:08:11,023 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 21:08:11,023 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 21:08:11,023 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 21:08:11,023 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 21:08:11,023 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 21:08:11,023 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 21:08:11,023 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 21:08:11,024 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 21:08:11,024 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 21:08:11,024 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 21:08:11,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 21:08:11,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 21:08:11,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 21:08:11,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 21:08:11,025 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 21:08:11,025 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 21:08:11,025 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 21:08:11,025 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 21:08:11,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 21:08:11,026 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 21:08:11,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 21:08:11,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 21:08:11,026 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 21:08:11,026 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 21:08:11,026 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 21:08:11,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 21:08:11,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 21:08:11,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 21:08:11,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 21:08:11,027 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 21:08:11,027 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 21:08:11,027 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 21:08:11,028 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 21:08:11,028 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 21:08:11,028 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_8520565f-8ca2-430d-9738-2e2199a544cb/bin/utaipan 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 -> Taipan 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 -> 7de8352890f1d55270cdee8daa00c3bfaf4226ea [2019-12-07 21:08:11,219 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 21:08:11,227 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 21:08:11,230 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 21:08:11,230 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 21:08:11,231 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 21:08:11,231 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8520565f-8ca2-430d-9738-2e2199a544cb/bin/utaipan/../../sv-benchmarks/c/float-benchs/zonotope_tight.c [2019-12-07 21:08:11,268 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8520565f-8ca2-430d-9738-2e2199a544cb/bin/utaipan/data/a394430f6/7d45e1c277434ed090341e6e0980d85c/FLAG07c832b2d [2019-12-07 21:08:11,701 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 21:08:11,701 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8520565f-8ca2-430d-9738-2e2199a544cb/sv-benchmarks/c/float-benchs/zonotope_tight.c [2019-12-07 21:08:11,705 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8520565f-8ca2-430d-9738-2e2199a544cb/bin/utaipan/data/a394430f6/7d45e1c277434ed090341e6e0980d85c/FLAG07c832b2d [2019-12-07 21:08:11,713 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8520565f-8ca2-430d-9738-2e2199a544cb/bin/utaipan/data/a394430f6/7d45e1c277434ed090341e6e0980d85c [2019-12-07 21:08:11,715 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 21:08:11,716 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 21:08:11,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 21:08:11,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 21:08:11,718 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 21:08:11,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:08:11" (1/1) ... [2019-12-07 21:08:11,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a2818af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:08:11, skipping insertion in model container [2019-12-07 21:08:11,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:08:11" (1/1) ... [2019-12-07 21:08:11,725 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 21:08:11,735 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 21:08:11,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:08:11,836 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 21:08:11,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:08:11,856 INFO L208 MainTranslator]: Completed translation [2019-12-07 21:08:11,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:08:11 WrapperNode [2019-12-07 21:08:11,857 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 21:08:11,857 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 21:08:11,857 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 21:08:11,857 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 21:08:11,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:08:11" (1/1) ... [2019-12-07 21:08:11,867 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:08:11" (1/1) ... [2019-12-07 21:08:11,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 21:08:11,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 21:08:11,911 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 21:08:11,911 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 21:08:11,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:08:11" (1/1) ... [2019-12-07 21:08:11,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:08:11" (1/1) ... [2019-12-07 21:08:11,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:08:11" (1/1) ... [2019-12-07 21:08:11,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:08:11" (1/1) ... [2019-12-07 21:08:11,924 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:08:11" (1/1) ... [2019-12-07 21:08:11,926 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:08:11" (1/1) ... [2019-12-07 21:08:11,927 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:08:11" (1/1) ... [2019-12-07 21:08:11,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 21:08:11,930 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 21:08:11,930 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 21:08:11,930 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 21:08:11,931 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:08:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8520565f-8ca2-430d-9738-2e2199a544cb/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 21:08:11,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 21:08:11,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 21:08:13,624 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 21:08:13,625 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 21:08:13,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:08:13 BoogieIcfgContainer [2019-12-07 21:08:13,626 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 21:08:13,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 21:08:13,626 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 21:08:13,628 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 21:08:13,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 09:08:11" (1/3) ... [2019-12-07 21:08:13,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d21fc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:08:13, skipping insertion in model container [2019-12-07 21:08:13,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:08:11" (2/3) ... [2019-12-07 21:08:13,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d21fc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:08:13, skipping insertion in model container [2019-12-07 21:08:13,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:08:13" (3/3) ... [2019-12-07 21:08:13,630 INFO L109 eAbstractionObserver]: Analyzing ICFG zonotope_tight.c [2019-12-07 21:08:13,637 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 21:08:13,641 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 21:08:13,648 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 21:08:13,662 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 21:08:13,662 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 21:08:13,662 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 21:08:13,662 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 21:08:13,662 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 21:08:13,663 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 21:08:13,663 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 21:08:13,663 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 21:08:13,671 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-12-07 21:08:13,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 21:08:13,674 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:08:13,675 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 21:08:13,675 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:08:13,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:08:13,679 INFO L82 PathProgramCache]: Analyzing trace with hash 889508713, now seen corresponding path program 1 times [2019-12-07 21:08:13,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:08:13,686 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1233024313] [2019-12-07 21:08:13,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8520565f-8ca2-430d-9738-2e2199a544cb/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 21:08:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:08:14,143 WARN L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 21:08:14,147 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:08:17,192 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (and (= (fp.div c_currentRoundingMode ULTIMATE.start_main_~x~0 .cse0) c_ULTIMATE.start_main_~y~0) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 .cse0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2019-12-07 21:08:17,200 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 21:08:19,416 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 21:08:32,181 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (or (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.leq (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq ULTIMATE.start_main_~x~0 .cse0) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53))))) .cse1) (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (and .cse1 (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.geq (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse2) (_ +zero 11 53))) (fp.leq ULTIMATE.start_main_~x~0 .cse2) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)))))))) is different from false [2019-12-07 21:08:43,492 WARN L838 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq v_prenex_1 .cse0) (not (fp.geq (fp.div roundNearestTiesToEven v_prenex_1 .cse0) (_ +zero 11 53))) (fp.geq v_prenex_1 (_ +zero 11 53))))) (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.leq (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse1) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq ULTIMATE.start_main_~x~0 .cse1) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)))))) is different from false [2019-12-07 21:08:45,679 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq v_prenex_1 .cse0) (not (fp.geq (fp.div roundNearestTiesToEven v_prenex_1 .cse0) (_ +zero 11 53))) (fp.geq v_prenex_1 (_ +zero 11 53))))) (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.leq (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse1) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq ULTIMATE.start_main_~x~0 .cse1) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)))))) is different from true [2019-12-07 21:08:45,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:08:45,682 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:08:47,932 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)))) (and (fp.geq .cse0 (_ +zero 11 53)) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 4.0)))) is different from false [2019-12-07 21:08:49,834 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 21:08:52,029 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~x~0_8 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_8 .cse0)) (fp.geq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_8 .cse0) (_ +zero 11 53)) (not (fp.geq v_ULTIMATE.start_main_~x~0_8 (_ +zero 11 53)))))) (forall ((v_ULTIMATE.start_main_~x~0_8 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_8 .cse1)) (fp.leq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_8 .cse1) ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (not (fp.geq v_ULTIMATE.start_main_~x~0_8 (_ +zero 11 53))))))) is different from false [2019-12-07 21:08:54,449 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~x~0_8 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_8 .cse0)) (fp.geq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_8 .cse0) (_ +zero 11 53)) (not (fp.geq v_ULTIMATE.start_main_~x~0_8 (_ +zero 11 53)))))) (forall ((v_ULTIMATE.start_main_~x~0_8 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_8 .cse1)) (fp.leq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_8 .cse1) ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (not (fp.geq v_ULTIMATE.start_main_~x~0_8 (_ +zero 11 53))))))) is different from true [2019-12-07 21:08:54,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:08:54,451 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1233024313] [2019-12-07 21:08:54,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:08:54,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 10 [2019-12-07 21:08:54,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259586523] [2019-12-07 21:08:54,458 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-12-07 21:08:54,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:08:54,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-07 21:08:54,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=23, Unknown=7, NotChecked=60, Total=110 [2019-12-07 21:08:54,470 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 11 states. [2019-12-07 21:08:56,683 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~x~0_8 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_8 .cse0)) (fp.geq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_8 .cse0) (_ +zero 11 53)) (not (fp.geq v_ULTIMATE.start_main_~x~0_8 (_ +zero 11 53)))))) (forall ((v_ULTIMATE.start_main_~x~0_8 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_8 .cse1)) (fp.leq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_8 .cse1) ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (not (fp.geq v_ULTIMATE.start_main_~x~0_8 (_ +zero 11 53)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2019-12-07 21:08:59,125 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~x~0_8 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_8 .cse0)) (fp.geq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_8 .cse0) (_ +zero 11 53)) (not (fp.geq v_ULTIMATE.start_main_~x~0_8 (_ +zero 11 53)))))) (forall ((v_ULTIMATE.start_main_~x~0_8 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_8 .cse1)) (fp.leq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_8 .cse1) ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (not (fp.geq v_ULTIMATE.start_main_~x~0_8 (_ +zero 11 53)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2019-12-07 21:09:01,351 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (let ((.cse0 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~x~0 .cse1))) (and (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.geq .cse0 (_ +zero 11 53)) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (fp.leq c_ULTIMATE.start_main_~x~0 .cse1) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from false [2019-12-07 21:09:32,938 WARN L192 SmtUtils]: Spent 24.41 s on a formula simplification. DAG size of input: 19 DAG size of output: 18 [2019-12-07 21:09:50,233 WARN L192 SmtUtils]: Spent 13.01 s on a formula simplification. DAG size of input: 35 DAG size of output: 15 [2019-12-07 21:09:53,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:09:53,491 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2019-12-07 21:09:53,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 21:09:53,493 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 6 [2019-12-07 21:09:53,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:09:53,501 INFO L225 Difference]: With dead ends: 23 [2019-12-07 21:09:53,502 INFO L226 Difference]: Without dead ends: 7 [2019-12-07 21:09:53,505 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 77.2s TimeCoverageRelationStatistics Valid=39, Invalid=48, Unknown=13, NotChecked=140, Total=240 [2019-12-07 21:09:53,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-12-07 21:09:53,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-12-07 21:09:53,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-07 21:09:53,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2019-12-07 21:09:53,528 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2019-12-07 21:09:53,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:09:53,528 INFO L462 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2019-12-07 21:09:53,528 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-12-07 21:09:53,528 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2019-12-07 21:09:53,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 21:09:53,529 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:09:53,529 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 21:09:53,730 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 21:09:53,731 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:09:53,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:09:53,732 INFO L82 PathProgramCache]: Analyzing trace with hash 889568295, now seen corresponding path program 1 times [2019-12-07 21:09:53,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:09:53,733 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [285263454] [2019-12-07 21:09:53,733 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8520565f-8ca2-430d-9738-2e2199a544cb/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 21:09:54,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:09:54,134 WARN L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 21:09:54,135 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:09:56,184 WARN L838 $PredicateComparison]: unable to prove that (and (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (= c_currentRoundingMode roundNearestTiesToEven) (= (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0) c_ULTIMATE.start_main_~x~0) c_ULTIMATE.start_main_~y~0)) is different from false [2019-12-07 21:09:58,240 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (= c_ULTIMATE.start_main_~y~0 (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (not (fp.geq (fp.sub c_currentRoundingMode .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2019-12-07 21:09:58,246 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 21:10:00,302 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 21:10:14,776 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (or (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.geq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) .cse1) (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse3 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (let ((.cse2 (fp.add roundNearestTiesToEven .cse3 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) (and (fp.leq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 4.0)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.geq .cse2 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse3 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))))) (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse4 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse4 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) .cse1))) is different from false [2019-12-07 21:10:25,109 WARN L838 $PredicateComparison]: unable to prove that (or (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) (exists ((v_prenex_2 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven v_prenex_2 v_prenex_2))) (and (fp.geq v_prenex_2 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 v_prenex_2) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq v_prenex_2 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (not (fp.geq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))))))) is different from false [2019-12-07 21:10:27,158 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) (exists ((v_prenex_2 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven v_prenex_2 v_prenex_2))) (and (fp.geq v_prenex_2 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 v_prenex_2) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq v_prenex_2 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (not (fp.geq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))))))) is different from true [2019-12-07 21:10:27,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:10:27,159 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:10:48,852 WARN L192 SmtUtils]: Spent 14.47 s on a formula simplification. DAG size of input: 17 DAG size of output: 14 [2019-12-07 21:10:50,900 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~x~0_9 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode v_ULTIMATE.start_main_~x~0_9 v_ULTIMATE.start_main_~x~0_9))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_9 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (not (fp.geq v_ULTIMATE.start_main_~x~0_9 (_ +zero 11 53))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (fp.geq (fp.sub c_currentRoundingMode .cse0 v_ULTIMATE.start_main_~x~0_9) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) is different from false [2019-12-07 21:10:52,954 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~x~0_9 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode v_ULTIMATE.start_main_~x~0_9 v_ULTIMATE.start_main_~x~0_9))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_9 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (not (fp.geq v_ULTIMATE.start_main_~x~0_9 (_ +zero 11 53))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (fp.geq (fp.sub c_currentRoundingMode .cse0 v_ULTIMATE.start_main_~x~0_9) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) is different from true [2019-12-07 21:10:52,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:10:52,955 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [285263454] [2019-12-07 21:10:52,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:10:52,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 10 [2019-12-07 21:10:52,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236810196] [2019-12-07 21:10:52,957 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-12-07 21:10:52,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:10:52,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-07 21:10:52,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=23, Unknown=7, NotChecked=60, Total=110 [2019-12-07 21:10:52,958 INFO L87 Difference]: Start difference. First operand 7 states and 6 transitions. Second operand 11 states. [2019-12-07 21:10:56,386 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~x~0_9 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode v_ULTIMATE.start_main_~x~0_9 v_ULTIMATE.start_main_~x~0_9))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_9 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (not (fp.geq v_ULTIMATE.start_main_~x~0_9 (_ +zero 11 53))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (fp.geq (fp.sub c_currentRoundingMode .cse0 v_ULTIMATE.start_main_~x~0_9) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2019-12-07 21:10:58,444 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~x~0_9 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode v_ULTIMATE.start_main_~x~0_9 v_ULTIMATE.start_main_~x~0_9))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_9 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (not (fp.geq v_ULTIMATE.start_main_~x~0_9 (_ +zero 11 53))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (fp.geq (fp.sub c_currentRoundingMode .cse0 v_ULTIMATE.start_main_~x~0_9) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2019-12-07 21:11:23,834 WARN L192 SmtUtils]: Spent 19.55 s on a formula simplification that was a NOOP. DAG size: 24 [2019-12-07 21:11:58,921 WARN L192 SmtUtils]: Spent 25.42 s on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2019-12-07 21:12:03,142 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (and (not .cse0) (or (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.geq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) .cse0) (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse3 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (let ((.cse2 (fp.add roundNearestTiesToEven .cse3 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) (and (fp.leq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 4.0)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.geq .cse2 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse3 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))))) (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse4 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse4 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) .cse0)))) is different from false [2019-12-07 21:12:03,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:12:03,148 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2019-12-07 21:12:03,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 21:12:03,149 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 6 [2019-12-07 21:12:03,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:12:03,149 INFO L225 Difference]: With dead ends: 7 [2019-12-07 21:12:03,149 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 21:12:03,150 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 100.8s TimeCoverageRelationStatistics Valid=33, Invalid=37, Unknown=14, NotChecked=126, Total=210 [2019-12-07 21:12:03,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 21:12:03,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 21:12:03,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 21:12:03,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 21:12:03,151 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2019-12-07 21:12:03,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:12:03,151 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 21:12:03,151 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-12-07 21:12:03,151 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 21:12:03,151 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 21:12:03,352 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 21:12:03,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 21:12:03,393 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 21:12:03,393 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 21:12:03,393 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 21:12:03,393 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 21:12:03,393 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-12-07 21:12:03,393 INFO L242 CegarLoopResult]: At program point L23(lines 11 24) the Hoare annotation is: (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) [2019-12-07 21:12:03,393 INFO L246 CegarLoopResult]: For program point L19(lines 19 20) no Hoare annotation was computed. [2019-12-07 21:12:03,394 INFO L246 CegarLoopResult]: For program point L19-2(lines 19 20) no Hoare annotation was computed. [2019-12-07 21:12:03,394 INFO L246 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2019-12-07 21:12:03,394 INFO L246 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2019-12-07 21:12:03,394 INFO L242 CegarLoopResult]: At program point L9-3(line 9) the Hoare annotation is: (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) [2019-12-07 21:12:03,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 09:12:03 BoogieIcfgContainer [2019-12-07 21:12:03,403 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 21:12:03,404 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 21:12:03,404 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 21:12:03,404 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 21:12:03,404 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:08:13" (3/4) ... [2019-12-07 21:12:03,406 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 21:12:03,413 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-07 21:12:03,413 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 21:12:03,414 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 21:12:03,439 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8520565f-8ca2-430d-9738-2e2199a544cb/bin/utaipan/witness.graphml [2019-12-07 21:12:03,440 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 21:12:03,441 INFO L168 Benchmark]: Toolchain (without parser) took 231724.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 953.7 MB in the beginning and 1.0 GB in the end (delta: -52.9 MB). Peak memory consumption was 64.5 MB. Max. memory is 11.5 GB. [2019-12-07 21:12:03,441 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:12:03,441 INFO L168 Benchmark]: CACSL2BoogieTranslator took 140.46 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 941.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-12-07 21:12:03,442 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -171.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. [2019-12-07 21:12:03,442 INFO L168 Benchmark]: Boogie Preprocessor took 18.75 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 21:12:03,442 INFO L168 Benchmark]: RCFGBuilder took 1695.73 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: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-12-07 21:12:03,443 INFO L168 Benchmark]: TraceAbstraction took 229777.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 79.5 MB). Peak memory consumption was 79.5 MB. Max. memory is 11.5 GB. [2019-12-07 21:12:03,443 INFO L168 Benchmark]: Witness Printer took 35.90 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:12:03,445 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 140.46 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 941.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -171.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.75 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1695.73 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: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 229777.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 79.5 MB). Peak memory consumption was 79.5 MB. Max. memory is 11.5 GB. * Witness Printer took 35.90 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: !(cond == 0bv32) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: !(cond == 0bv32) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Result: SAFE, OverallTime: 229.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 129.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 7 SDtfs, 17 SDslu, 24 SDs, 0 SdLazy, 12 SolverSat, 1 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 6.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 14 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 178.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 8 HoareAnnotationTreeSize, 2 FomulaSimplifications, 34 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 99.1s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 8 QuantifiedInterpolants, 2700 SizeOfPredicates, 10 NumberOfNonLiveVariables, 24 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...