./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fc54cccf-5e19-4fea-bf93-e40321bb64cd/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_fc54cccf-5e19-4fea-bf93-e40321bb64cd/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fc54cccf-5e19-4fea-bf93-e40321bb64cd/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fc54cccf-5e19-4fea-bf93-e40321bb64cd/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fc54cccf-5e19-4fea-bf93-e40321bb64cd/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fc54cccf-5e19-4fea-bf93-e40321bb64cd/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 0fa375491f6ee23468a1ede5cb9608fff6035ced .............................................................................................................................................................................................................................................................................................. 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_fc54cccf-5e19-4fea-bf93-e40321bb64cd/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_fc54cccf-5e19-4fea-bf93-e40321bb64cd/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fc54cccf-5e19-4fea-bf93-e40321bb64cd/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fc54cccf-5e19-4fea-bf93-e40321bb64cd/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fc54cccf-5e19-4fea-bf93-e40321bb64cd/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fc54cccf-5e19-4fea-bf93-e40321bb64cd/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 0fa375491f6ee23468a1ede5cb9608fff6035ced ............................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 03:02:03,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 03:02:03,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 03:02:03,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 03:02:03,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 03:02:03,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 03:02:03,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 03:02:03,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 03:02:03,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 03:02:03,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 03:02:03,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 03:02:03,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 03:02:03,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 03:02:03,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 03:02:03,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 03:02:03,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 03:02:03,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 03:02:03,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 03:02:03,922 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 03:02:03,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 03:02:03,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 03:02:03,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 03:02:03,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 03:02:03,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 03:02:03,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 03:02:03,933 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 03:02:03,934 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 03:02:03,936 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 03:02:03,936 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 03:02:03,938 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 03:02:03,938 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 03:02:03,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 03:02:03,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 03:02:03,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 03:02:03,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 03:02:03,942 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 03:02:03,943 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 03:02:03,943 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 03:02:03,944 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 03:02:03,945 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 03:02:03,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 03:02:03,947 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fc54cccf-5e19-4fea-bf93-e40321bb64cd/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 03:02:03,975 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 03:02:03,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 03:02:03,986 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 03:02:03,986 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 03:02:03,987 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 03:02:03,987 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 03:02:03,987 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 03:02:03,987 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 03:02:03,988 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 03:02:03,988 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 03:02:03,988 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 03:02:03,988 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 03:02:03,989 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 03:02:03,989 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 03:02:03,989 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 03:02:03,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 03:02:03,991 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 03:02:03,991 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 03:02:03,992 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 03:02:03,992 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 03:02:03,992 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 03:02:03,992 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 03:02:03,993 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 03:02:03,993 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 03:02:03,993 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 03:02:03,993 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 03:02:03,994 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 03:02:03,994 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 03:02:03,994 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 03:02:03,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 03:02:03,995 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 03:02:03,995 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 03:02:03,995 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 03:02:03,996 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 03:02:03,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 03:02:03,996 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 03:02:03,996 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 03:02:03,997 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_fc54cccf-5e19-4fea-bf93-e40321bb64cd/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 -> 0fa375491f6ee23468a1ede5cb9608fff6035ced [2019-11-26 03:02:04,143 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 03:02:04,158 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 03:02:04,161 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 03:02:04,163 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 03:02:04,163 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 03:02:04,164 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fc54cccf-5e19-4fea-bf93-e40321bb64cd/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2019-11-26 03:02:04,222 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fc54cccf-5e19-4fea-bf93-e40321bb64cd/bin/utaipan/data/c77e59df2/402ead4de5094148a33e69eba08b2b62/FLAGdeb9f0ce2 [2019-11-26 03:02:04,661 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 03:02:04,662 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fc54cccf-5e19-4fea-bf93-e40321bb64cd/sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2019-11-26 03:02:04,672 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fc54cccf-5e19-4fea-bf93-e40321bb64cd/bin/utaipan/data/c77e59df2/402ead4de5094148a33e69eba08b2b62/FLAGdeb9f0ce2 [2019-11-26 03:02:04,688 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fc54cccf-5e19-4fea-bf93-e40321bb64cd/bin/utaipan/data/c77e59df2/402ead4de5094148a33e69eba08b2b62 [2019-11-26 03:02:04,690 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 03:02:04,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 03:02:04,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 03:02:04,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 03:02:04,695 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 03:02:04,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 03:02:04" (1/1) ... [2019-11-26 03:02:04,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e22975f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:04, skipping insertion in model container [2019-11-26 03:02:04,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 03:02:04" (1/1) ... [2019-11-26 03:02:04,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 03:02:04,723 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 03:02:04,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 03:02:04,951 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 03:02:04,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 03:02:04,997 INFO L205 MainTranslator]: Completed translation [2019-11-26 03:02:04,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:04 WrapperNode [2019-11-26 03:02:04,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 03:02:04,999 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 03:02:04,999 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 03:02:04,999 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 03:02:05,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:04" (1/1) ... [2019-11-26 03:02:05,016 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:04" (1/1) ... [2019-11-26 03:02:05,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 03:02:05,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 03:02:05,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 03:02:05,037 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 03:02:05,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:04" (1/1) ... [2019-11-26 03:02:05,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:04" (1/1) ... [2019-11-26 03:02:05,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:04" (1/1) ... [2019-11-26 03:02:05,047 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:04" (1/1) ... [2019-11-26 03:02:05,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:04" (1/1) ... [2019-11-26 03:02:05,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:04" (1/1) ... [2019-11-26 03:02:05,064 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:04" (1/1) ... [2019-11-26 03:02:05,067 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 03:02:05,068 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 03:02:05,068 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 03:02:05,068 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 03:02:05,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fc54cccf-5e19-4fea-bf93-e40321bb64cd/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 [2019-11-26 03:02:05,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-26 03:02:05,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 03:02:05,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-26 03:02:05,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 03:02:05,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 03:02:05,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-26 03:02:05,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 03:02:05,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 03:02:05,805 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 03:02:05,805 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-26 03:02:05,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 03:02:05 BoogieIcfgContainer [2019-11-26 03:02:05,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 03:02:05,808 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 03:02:05,808 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 03:02:05,810 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 03:02:05,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 03:02:04" (1/3) ... [2019-11-26 03:02:05,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2caf2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 03:02:05, skipping insertion in model container [2019-11-26 03:02:05,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:04" (2/3) ... [2019-11-26 03:02:05,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2caf2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 03:02:05, skipping insertion in model container [2019-11-26 03:02:05,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 03:02:05" (3/3) ... [2019-11-26 03:02:05,813 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2019-11-26 03:02:05,819 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 03:02:05,824 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 03:02:05,832 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 03:02:05,853 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 03:02:05,854 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 03:02:05,854 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 03:02:05,854 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 03:02:05,854 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 03:02:05,855 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 03:02:05,855 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 03:02:05,855 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 03:02:05,868 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-11-26 03:02:05,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 03:02:05,884 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 03:02:05,885 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 03:02:05,885 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 03:02:05,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:02:05,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1370550615, now seen corresponding path program 1 times [2019-11-26 03:02:05,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 03:02:05,896 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040306687] [2019-11-26 03:02:05,896 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 03:02:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 03:02:05,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 03:02:05,983 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040306687] [2019-11-26 03:02:05,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 03:02:05,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 03:02:05,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335875404] [2019-11-26 03:02:05,989 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 03:02:05,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 03:02:06,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 03:02:06,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 03:02:06,004 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2019-11-26 03:02:06,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 03:02:06,020 INFO L93 Difference]: Finished difference Result 35 states and 53 transitions. [2019-11-26 03:02:06,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 03:02:06,021 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-11-26 03:02:06,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 03:02:06,030 INFO L225 Difference]: With dead ends: 35 [2019-11-26 03:02:06,030 INFO L226 Difference]: Without dead ends: 16 [2019-11-26 03:02:06,033 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 03:02:06,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-26 03:02:06,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-26 03:02:06,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-26 03:02:06,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2019-11-26 03:02:06,064 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 8 [2019-11-26 03:02:06,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 03:02:06,065 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2019-11-26 03:02:06,065 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 03:02:06,065 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2019-11-26 03:02:06,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-26 03:02:06,065 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 03:02:06,066 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 03:02:06,066 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 03:02:06,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:02:06,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1276420116, now seen corresponding path program 1 times [2019-11-26 03:02:06,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 03:02:06,067 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425358010] [2019-11-26 03:02:06,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 03:02:06,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 03:02:06,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 03:02:06,152 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 03:02:06,152 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 03:02:06,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 03:02:06 BoogieIcfgContainer [2019-11-26 03:02:06,176 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 03:02:06,177 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 03:02:06,177 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 03:02:06,177 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 03:02:06,178 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 03:02:05" (3/4) ... [2019-11-26 03:02:06,181 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-26 03:02:06,181 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 03:02:06,186 INFO L168 Benchmark]: Toolchain (without parser) took 1491.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -114.0 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. [2019-11-26 03:02:06,187 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 03:02:06,188 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -192.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-26 03:02:06,188 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.99 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 03:02:06,189 INFO L168 Benchmark]: Boogie Preprocessor took 30.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 03:02:06,190 INFO L168 Benchmark]: RCFGBuilder took 739.31 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: 46.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 11.5 GB. [2019-11-26 03:02:06,191 INFO L168 Benchmark]: TraceAbstraction took 368.91 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-11-26 03:02:06,191 INFO L168 Benchmark]: Witness Printer took 4.02 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 03:02:06,195 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 306.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -192.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.99 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 739.31 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: 46.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 368.91 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.02 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 93]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 80, overapproximation of someBinaryArithmeticDOUBLEoperation at line 49, overapproximation of bitwiseAnd at line 25. Possible FailurePath: [L14] static const double huge_floor = 1.0e300; [L88] double x = 0.0 / 0.0; [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L26] COND FALSE !(j0 < 20) VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L47] COND TRUE j0 > 51 [L48] COND FALSE !(j0 == 0x400) [L51] return x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L89] double res = floor_double(x); [L80] return x != x; [L92] COND TRUE !isnan_double(res) [L93] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 0.1.24-6b5699a [2019-11-26 03:02:08,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 03:02:08,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 03:02:08,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 03:02:08,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 03:02:08,030 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 03:02:08,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 03:02:08,040 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 03:02:08,047 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 03:02:08,048 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 03:02:08,048 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 03:02:08,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 03:02:08,051 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 03:02:08,054 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 03:02:08,056 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 03:02:08,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 03:02:08,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 03:02:08,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 03:02:08,064 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 03:02:08,069 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 03:02:08,073 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 03:02:08,076 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 03:02:08,077 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 03:02:08,078 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 03:02:08,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 03:02:08,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 03:02:08,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 03:02:08,081 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 03:02:08,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 03:02:08,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 03:02:08,083 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 03:02:08,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 03:02:08,084 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 03:02:08,084 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 03:02:08,085 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 03:02:08,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 03:02:08,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 03:02:08,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 03:02:08,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 03:02:08,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 03:02:08,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 03:02:08,093 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fc54cccf-5e19-4fea-bf93-e40321bb64cd/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-11-26 03:02:08,118 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 03:02:08,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 03:02:08,119 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 03:02:08,119 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 03:02:08,120 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 03:02:08,120 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 03:02:08,120 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 03:02:08,120 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 03:02:08,120 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 03:02:08,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 03:02:08,121 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 03:02:08,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 03:02:08,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 03:02:08,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 03:02:08,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 03:02:08,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 03:02:08,123 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 03:02:08,123 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 03:02:08,123 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 03:02:08,123 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 03:02:08,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 03:02:08,124 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 03:02:08,124 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 03:02:08,124 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 03:02:08,124 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 03:02:08,124 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 03:02:08,125 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 03:02:08,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 03:02:08,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 03:02:08,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 03:02:08,136 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 03:02:08,137 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-11-26 03:02:08,137 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 03:02:08,137 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 03:02:08,137 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 03:02:08,138 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_fc54cccf-5e19-4fea-bf93-e40321bb64cd/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 -> 0fa375491f6ee23468a1ede5cb9608fff6035ced [2019-11-26 03:02:08,398 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 03:02:08,415 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 03:02:08,418 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 03:02:08,419 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 03:02:08,419 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 03:02:08,420 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fc54cccf-5e19-4fea-bf93-e40321bb64cd/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2019-11-26 03:02:08,477 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fc54cccf-5e19-4fea-bf93-e40321bb64cd/bin/utaipan/data/212941f74/60a7d751c2544393a37d0341032954da/FLAG11ba92aa7 [2019-11-26 03:02:08,893 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 03:02:08,893 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fc54cccf-5e19-4fea-bf93-e40321bb64cd/sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2019-11-26 03:02:08,900 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fc54cccf-5e19-4fea-bf93-e40321bb64cd/bin/utaipan/data/212941f74/60a7d751c2544393a37d0341032954da/FLAG11ba92aa7 [2019-11-26 03:02:09,285 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fc54cccf-5e19-4fea-bf93-e40321bb64cd/bin/utaipan/data/212941f74/60a7d751c2544393a37d0341032954da [2019-11-26 03:02:09,287 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 03:02:09,288 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 03:02:09,289 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 03:02:09,289 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 03:02:09,292 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 03:02:09,293 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 03:02:09" (1/1) ... [2019-11-26 03:02:09,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@db4b9ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:09, skipping insertion in model container [2019-11-26 03:02:09,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 03:02:09" (1/1) ... [2019-11-26 03:02:09,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 03:02:09,326 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 03:02:09,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 03:02:09,513 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 03:02:09,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 03:02:09,632 INFO L205 MainTranslator]: Completed translation [2019-11-26 03:02:09,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:09 WrapperNode [2019-11-26 03:02:09,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 03:02:09,633 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 03:02:09,633 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 03:02:09,633 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 03:02:09,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:09" (1/1) ... [2019-11-26 03:02:09,650 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:09" (1/1) ... [2019-11-26 03:02:09,672 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 03:02:09,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 03:02:09,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 03:02:09,673 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 03:02:09,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:09" (1/1) ... [2019-11-26 03:02:09,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:09" (1/1) ... [2019-11-26 03:02:09,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:09" (1/1) ... [2019-11-26 03:02:09,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:09" (1/1) ... [2019-11-26 03:02:09,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:09" (1/1) ... [2019-11-26 03:02:09,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:09" (1/1) ... [2019-11-26 03:02:09,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:09" (1/1) ... [2019-11-26 03:02:09,710 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 03:02:09,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 03:02:09,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 03:02:09,711 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 03:02:09,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fc54cccf-5e19-4fea-bf93-e40321bb64cd/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 [2019-11-26 03:02:09,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-26 03:02:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-26 03:02:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 03:02:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-26 03:02:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 03:02:09,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 03:02:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-26 03:02:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 03:02:10,884 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 03:02:10,885 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-26 03:02:10,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 03:02:10 BoogieIcfgContainer [2019-11-26 03:02:10,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 03:02:10,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 03:02:10,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 03:02:10,889 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 03:02:10,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 03:02:09" (1/3) ... [2019-11-26 03:02:10,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35236877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 03:02:10, skipping insertion in model container [2019-11-26 03:02:10,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:09" (2/3) ... [2019-11-26 03:02:10,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35236877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 03:02:10, skipping insertion in model container [2019-11-26 03:02:10,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 03:02:10" (3/3) ... [2019-11-26 03:02:10,892 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2019-11-26 03:02:10,899 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 03:02:10,904 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 03:02:10,913 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 03:02:10,935 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 03:02:10,935 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 03:02:10,935 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 03:02:10,935 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 03:02:10,935 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 03:02:10,936 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 03:02:10,936 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 03:02:10,936 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 03:02:10,947 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-11-26 03:02:10,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-26 03:02:10,952 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 03:02:10,953 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 03:02:10,953 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 03:02:10,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:02:10,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2019-11-26 03:02:10,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 03:02:10,967 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1170091502] [2019-11-26 03:02:10,968 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fc54cccf-5e19-4fea-bf93-e40321bb64cd/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 [2019-11-26 03:02:11,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 03:02:11,058 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-26 03:02:11,063 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 03:02:11,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 03:02:11,076 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 03:02:11,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 03:02:11,081 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1170091502] [2019-11-26 03:02:11,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 03:02:11,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-26 03:02:11,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450807805] [2019-11-26 03:02:11,087 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 03:02:11,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 03:02:11,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 03:02:11,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 03:02:11,102 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-11-26 03:02:11,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 03:02:11,120 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2019-11-26 03:02:11,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 03:02:11,122 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-26 03:02:11,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 03:02:11,132 INFO L225 Difference]: With dead ends: 66 [2019-11-26 03:02:11,132 INFO L226 Difference]: Without dead ends: 31 [2019-11-26 03:02:11,135 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 03:02:11,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-26 03:02:11,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-11-26 03:02:11,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-26 03:02:11,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2019-11-26 03:02:11,162 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2019-11-26 03:02:11,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 03:02:11,162 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2019-11-26 03:02:11,162 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 03:02:11,162 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2019-11-26 03:02:11,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-26 03:02:11,163 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 03:02:11,163 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 03:02:11,378 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-26 03:02:11,378 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 03:02:11,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:02:11,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2019-11-26 03:02:11,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 03:02:11,386 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1329248350] [2019-11-26 03:02:11,386 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fc54cccf-5e19-4fea-bf93-e40321bb64cd/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 [2019-11-26 03:02:11,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 03:02:11,494 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-26 03:02:11,496 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 03:02:11,578 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 03:02:11,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 03:02:11,641 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 03:02:11,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 03:02:11,763 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1329248350] [2019-11-26 03:02:11,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 03:02:11,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-26 03:02:11,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783493763] [2019-11-26 03:02:11,765 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-26 03:02:11,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 03:02:11,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-26 03:02:11,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-26 03:02:11,766 INFO L87 Difference]: Start difference. First operand 31 states and 45 transitions. Second operand 10 states. [2019-11-26 03:02:12,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 03:02:12,796 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2019-11-26 03:02:12,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 03:02:12,797 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-11-26 03:02:12,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 03:02:12,799 INFO L225 Difference]: With dead ends: 42 [2019-11-26 03:02:12,799 INFO L226 Difference]: Without dead ends: 21 [2019-11-26 03:02:12,800 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2019-11-26 03:02:12,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-26 03:02:12,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-26 03:02:12,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-26 03:02:12,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2019-11-26 03:02:12,804 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 12 [2019-11-26 03:02:12,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 03:02:12,804 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2019-11-26 03:02:12,804 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-26 03:02:12,804 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-11-26 03:02:12,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-26 03:02:12,805 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 03:02:12,805 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 03:02:13,014 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-26 03:02:13,018 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 03:02:13,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:02:13,019 INFO L82 PathProgramCache]: Analyzing trace with hash -649399050, now seen corresponding path program 1 times [2019-11-26 03:02:13,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 03:02:13,020 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [980494453] [2019-11-26 03:02:13,020 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fc54cccf-5e19-4fea-bf93-e40321bb64cd/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-26 03:02:13,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 03:02:13,178 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-26 03:02:13,180 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 03:02:13,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 03:02:13,299 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 03:02:13,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 03:02:13,464 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [980494453] [2019-11-26 03:02:13,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 03:02:13,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-26 03:02:13,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119083168] [2019-11-26 03:02:13,465 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-26 03:02:13,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 03:02:13,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-26 03:02:13,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-26 03:02:13,466 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 8 states. [2019-11-26 03:02:13,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 03:02:13,709 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-11-26 03:02:13,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 03:02:13,710 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-11-26 03:02:13,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 03:02:13,711 INFO L225 Difference]: With dead ends: 21 [2019-11-26 03:02:13,711 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 03:02:13,711 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-26 03:02:13,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 03:02:13,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 03:02:13,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 03:02:13,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 03:02:13,712 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-26 03:02:13,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 03:02:13,712 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 03:02:13,713 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-26 03:02:13,713 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 03:02:13,713 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 03:02:13,913 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-26 03:02:13,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 03:02:14,022 INFO L444 ceAbstractionStarter]: For program point L93(line 93) no Hoare annotation was computed. [2019-11-26 03:02:14,023 INFO L444 ceAbstractionStarter]: For program point L27(lines 27 46) no Hoare annotation was computed. [2019-11-26 03:02:14,023 INFO L444 ceAbstractionStarter]: For program point L19-1(lines 19 24) no Hoare annotation was computed. [2019-11-26 03:02:14,023 INFO L440 ceAbstractionStarter]: At program point L19-2(lines 19 24) the Hoare annotation is: (not (fp.eq ULTIMATE.start_floor_double_~x ULTIMATE.start_floor_double_~x)) [2019-11-26 03:02:14,023 INFO L444 ceAbstractionStarter]: For program point L19-3(lines 19 24) no Hoare annotation was computed. [2019-11-26 03:02:14,023 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 03:02:14,023 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-26 03:02:14,024 INFO L444 ceAbstractionStarter]: For program point L28(lines 28 35) no Hoare annotation was computed. [2019-11-26 03:02:14,024 INFO L444 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2019-11-26 03:02:14,024 INFO L444 ceAbstractionStarter]: For program point L70-1(lines 16 77) no Hoare annotation was computed. [2019-11-26 03:02:14,024 INFO L444 ceAbstractionStarter]: For program point L70-2(lines 70 75) no Hoare annotation was computed. [2019-11-26 03:02:14,024 INFO L444 ceAbstractionStarter]: For program point L62(lines 62 63) no Hoare annotation was computed. [2019-11-26 03:02:14,024 INFO L444 ceAbstractionStarter]: For program point L29(lines 29 34) no Hoare annotation was computed. [2019-11-26 03:02:14,024 INFO L444 ceAbstractionStarter]: For program point L62-2(lines 62 63) no Hoare annotation was computed. [2019-11-26 03:02:14,025 INFO L444 ceAbstractionStarter]: For program point L54(lines 54 55) no Hoare annotation was computed. [2019-11-26 03:02:14,025 INFO L444 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2019-11-26 03:02:14,025 INFO L440 ceAbstractionStarter]: At program point L80(line 80) the Hoare annotation is: (and (not (fp.eq ULTIMATE.start_floor_double_~x ULTIMATE.start_floor_double_~x)) (not (fp.eq |ULTIMATE.start_floor_double_#res| |ULTIMATE.start_floor_double_#res|)) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2019-11-26 03:02:14,025 INFO L444 ceAbstractionStarter]: For program point L47(lines 47 69) no Hoare annotation was computed. [2019-11-26 03:02:14,025 INFO L447 ceAbstractionStarter]: At program point L97(lines 82 98) the Hoare annotation is: true [2019-11-26 03:02:14,025 INFO L444 ceAbstractionStarter]: For program point L31(lines 31 34) no Hoare annotation was computed. [2019-11-26 03:02:14,026 INFO L444 ceAbstractionStarter]: For program point L56(lines 56 68) no Hoare annotation was computed. [2019-11-26 03:02:14,026 INFO L444 ceAbstractionStarter]: For program point L48(lines 48 51) no Hoare annotation was computed. [2019-11-26 03:02:14,026 INFO L444 ceAbstractionStarter]: For program point L40(lines 40 45) no Hoare annotation was computed. [2019-11-26 03:02:14,027 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-26 03:02:14,027 INFO L444 ceAbstractionStarter]: For program point L57(lines 57 66) no Hoare annotation was computed. [2019-11-26 03:02:14,027 INFO L444 ceAbstractionStarter]: For program point L57-1(lines 57 66) no Hoare annotation was computed. [2019-11-26 03:02:14,027 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 93) no Hoare annotation was computed. [2019-11-26 03:02:14,027 INFO L444 ceAbstractionStarter]: For program point L41(lines 41 42) no Hoare annotation was computed. [2019-11-26 03:02:14,027 INFO L444 ceAbstractionStarter]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2019-11-26 03:02:14,027 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 03:02:14,028 INFO L444 ceAbstractionStarter]: For program point L58(lines 58 65) no Hoare annotation was computed. [2019-11-26 03:02:14,028 INFO L444 ceAbstractionStarter]: For program point L92(lines 92 95) no Hoare annotation was computed. [2019-11-26 03:02:14,028 INFO L444 ceAbstractionStarter]: For program point L26(lines 26 69) no Hoare annotation was computed. [2019-11-26 03:02:14,029 INFO L440 ceAbstractionStarter]: At program point L76(lines 16 77) the Hoare annotation is: (and (not (fp.eq ULTIMATE.start_floor_double_~x ULTIMATE.start_floor_double_~x)) (not (fp.eq |ULTIMATE.start_floor_double_#res| |ULTIMATE.start_floor_double_#res|))) [2019-11-26 03:02:14,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 03:02:14 BoogieIcfgContainer [2019-11-26 03:02:14,048 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 03:02:14,049 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 03:02:14,049 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 03:02:14,049 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 03:02:14,050 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 03:02:10" (3/4) ... [2019-11-26 03:02:14,053 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 03:02:14,070 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-26 03:02:14,070 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-26 03:02:14,071 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 03:02:14,108 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !~fp.eq~DOUBLE(x, x) && !~fp.eq~DOUBLE(\result, \result) [2019-11-26 03:02:14,108 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!~fp.eq~DOUBLE(x, x) && !~fp.eq~DOUBLE(\result, \result)) && 1bv32 == \result [2019-11-26 03:02:14,140 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fc54cccf-5e19-4fea-bf93-e40321bb64cd/bin/utaipan/witness.graphml [2019-11-26 03:02:14,140 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 03:02:14,142 INFO L168 Benchmark]: Toolchain (without parser) took 4852.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 952.4 MB in the beginning and 1.0 GB in the end (delta: -63.9 MB). Peak memory consumption was 92.3 MB. Max. memory is 11.5 GB. [2019-11-26 03:02:14,142 INFO L168 Benchmark]: CDTParser took 0.22 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. [2019-11-26 03:02:14,143 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -194.1 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-26 03:02:14,143 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 03:02:14,143 INFO L168 Benchmark]: Boogie Preprocessor took 37.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 03:02:14,144 INFO L168 Benchmark]: RCFGBuilder took 1175.79 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: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 11.5 GB. [2019-11-26 03:02:14,144 INFO L168 Benchmark]: TraceAbstraction took 3161.58 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: 104.8 MB). Peak memory consumption was 104.8 MB. Max. memory is 11.5 GB. [2019-11-26 03:02:14,144 INFO L168 Benchmark]: Witness Printer took 91.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 03:02:14,146 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 343.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -194.1 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.54 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 37.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1175.79 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: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3161.58 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: 104.8 MB). Peak memory consumption was 104.8 MB. Max. memory is 11.5 GB. * Witness Printer took 91.14 ms. Allocated memory is still 1.2 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: 93]: 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: 80]: Loop Invariant Derived loop invariant: (!~fp.eq~DOUBLE(x, x) && !~fp.eq~DOUBLE(\result, \result)) && 1bv32 == \result - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(x, x) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(x, x) && !~fp.eq~DOUBLE(\result, \result) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Result: SAFE, OverallTime: 3.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 68 SDtfs, 27 SDslu, 75 SDs, 0 SdLazy, 60 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 26 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 70 ConstructedInterpolants, 12 QuantifiedInterpolants, 3143 SizeOfPredicates, 18 NumberOfNonLiveVariables, 114 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...