./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_45d088bf-b4aa-4444-8bbc-6d93f47a2f4e/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_45d088bf-b4aa-4444-8bbc-6d93f47a2f4e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_45d088bf-b4aa-4444-8bbc-6d93f47a2f4e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_45d088bf-b4aa-4444-8bbc-6d93f47a2f4e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float3.c -s /tmp/vcloud-vcloud-master/worker/working_dir_45d088bf-b4aa-4444-8bbc-6d93f47a2f4e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_45d088bf-b4aa-4444-8bbc-6d93f47a2f4e/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 214842803e5bf2009b57aa1e3a0f5face6e1dd52 ....................................................................................................................................................................................................................................... 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/working_dir_45d088bf-b4aa-4444-8bbc-6d93f47a2f4e/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_45d088bf-b4aa-4444-8bbc-6d93f47a2f4e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_45d088bf-b4aa-4444-8bbc-6d93f47a2f4e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_45d088bf-b4aa-4444-8bbc-6d93f47a2f4e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float3.c -s /tmp/vcloud-vcloud-master/worker/working_dir_45d088bf-b4aa-4444-8bbc-6d93f47a2f4e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_45d088bf-b4aa-4444-8bbc-6d93f47a2f4e/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 214842803e5bf2009b57aa1e3a0f5face6e1dd52 ......................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:20:55,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:20:55,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:20:55,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:20:55,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:20:55,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:20:55,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:20:55,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:20:55,170 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:20:55,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:20:55,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:20:55,171 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:20:55,171 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:20:55,172 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:20:55,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:20:55,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:20:55,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:20:55,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:20:55,179 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:20:55,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:20:55,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:20:55,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:20:55,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:20:55,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:20:55,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:20:55,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:20:55,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:20:55,189 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:20:55,190 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:20:55,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:20:55,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:20:55,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:20:55,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:20:55,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:20:55,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:20:55,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:20:55,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:20:55,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:20:55,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:20:55,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:20:55,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:20:55,196 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_45d088bf-b4aa-4444-8bbc-6d93f47a2f4e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:20:55,207 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:20:55,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:20:55,208 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:20:55,208 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:20:55,208 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:20:55,209 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:20:55,209 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:20:55,209 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:20:55,209 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:20:55,209 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:20:55,209 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:20:55,209 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:20:55,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:20:55,210 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:20:55,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:20:55,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:20:55,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:20:55,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:20:55,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:20:55,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:20:55,211 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:20:55,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:20:55,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:20:55,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:20:55,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:20:55,212 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:20:55,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:20:55,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:20:55,212 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:20:55,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:20:55,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:20:55,213 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:20:55,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:20:55,213 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:20:55,213 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:20:55,213 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/working_dir_45d088bf-b4aa-4444-8bbc-6d93f47a2f4e/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 -> 214842803e5bf2009b57aa1e3a0f5face6e1dd52 [2019-10-22 11:20:55,242 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:20:55,254 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:20:55,259 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:20:55,262 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:20:55,262 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:20:55,263 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_45d088bf-b4aa-4444-8bbc-6d93f47a2f4e/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float3.c [2019-10-22 11:20:55,316 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_45d088bf-b4aa-4444-8bbc-6d93f47a2f4e/bin/utaipan/data/a36356ba7/04ec28815f7e4fc4ad49d6522f23e60e/FLAGcbf3cac73 [2019-10-22 11:20:55,689 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:20:55,690 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_45d088bf-b4aa-4444-8bbc-6d93f47a2f4e/sv-benchmarks/c/floats-cbmc-regression/float3.c [2019-10-22 11:20:55,695 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_45d088bf-b4aa-4444-8bbc-6d93f47a2f4e/bin/utaipan/data/a36356ba7/04ec28815f7e4fc4ad49d6522f23e60e/FLAGcbf3cac73 [2019-10-22 11:20:55,708 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_45d088bf-b4aa-4444-8bbc-6d93f47a2f4e/bin/utaipan/data/a36356ba7/04ec28815f7e4fc4ad49d6522f23e60e [2019-10-22 11:20:55,711 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:20:55,712 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:20:55,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:20:55,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:20:55,717 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:20:55,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:20:55" (1/1) ... [2019-10-22 11:20:55,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@509c72ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:55, skipping insertion in model container [2019-10-22 11:20:55,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:20:55" (1/1) ... [2019-10-22 11:20:55,728 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:20:55,745 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:20:55,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:20:55,920 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:20:56,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:20:56,021 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:20:56,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56 WrapperNode [2019-10-22 11:20:56,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:20:56,022 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:20:56,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:20:56,022 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:20:56,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,036 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:20:56,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:20:56,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:20:56,054 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:20:56,063 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,066 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:20:56,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:20:56,071 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:20:56,071 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:20:56,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_45d088bf-b4aa-4444-8bbc-6d93f47a2f4e/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 [2019-10-22 11:20:56,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:20:56,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:20:56,234 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:20:56,235 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 11:20:56,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:20:56 BoogieIcfgContainer [2019-10-22 11:20:56,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:20:56,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:20:56,237 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:20:56,240 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:20:56,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:20:55" (1/3) ... [2019-10-22 11:20:56,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c6b3d0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:20:56, skipping insertion in model container [2019-10-22 11:20:56,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (2/3) ... [2019-10-22 11:20:56,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c6b3d0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:20:56, skipping insertion in model container [2019-10-22 11:20:56,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:20:56" (3/3) ... [2019-10-22 11:20:56,243 INFO L109 eAbstractionObserver]: Analyzing ICFG float3.c [2019-10-22 11:20:56,251 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:20:56,258 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:20:56,269 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:20:56,290 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:20:56,291 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:20:56,291 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:20:56,291 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:20:56,291 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:20:56,291 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:20:56,292 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:20:56,292 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:20:56,305 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-10-22 11:20:56,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 11:20:56,310 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:56,311 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:20:56,313 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:20:56,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:56,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965381, now seen corresponding path program 1 times [2019-10-22 11:20:56,327 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:56,327 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768970508] [2019-10-22 11:20:56,327 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:56,327 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:56,327 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:56,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:20:56,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:20:56,421 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:20:56,422 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:20:56,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:20:56 BoogieIcfgContainer [2019-10-22 11:20:56,441 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:20:56,441 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:20:56,442 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:20:56,442 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:20:56,442 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:20:56" (3/4) ... [2019-10-22 11:20:56,446 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 11:20:56,446 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:20:56,448 INFO L168 Benchmark]: Toolchain (without parser) took 735.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -152.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:20:56,449 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:20:56,450 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -184.6 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:20:56,451 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.99 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:20:56,451 INFO L168 Benchmark]: Boogie Preprocessor took 16.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:20:56,452 INFO L168 Benchmark]: RCFGBuilder took 165.21 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:20:56,452 INFO L168 Benchmark]: TraceAbstraction took 204.28 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: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:20:56,453 INFO L168 Benchmark]: Witness Printer took 4.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:20:56,456 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 308.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -184.6 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.99 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.50 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 165.21 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 204.28 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: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.68 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 24]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 24, overapproximation of someBinaryArithmeticDOUBLEoperation at line 20. Possible FailurePath: [L4] double d = 0.0; VAL [d=0] [L13] int x = 2; [L15] COND TRUE __VERIFIER_nondet_int() [L16] x = 4 VAL [d=0] [L8] d = 1.0 VAL [d=1] [L20] d += (x == 2) [L22] d += (x > 3) [L24] COND TRUE !(d == 2.0) [L24] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, 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=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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 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 0.1.24-cad4683 [2019-10-22 11:20:58,496 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:20:58,497 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:20:58,508 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:20:58,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:20:58,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:20:58,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:20:58,517 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:20:58,520 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:20:58,522 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:20:58,523 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:20:58,524 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:20:58,524 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:20:58,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:20:58,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:20:58,526 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:20:58,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:20:58,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:20:58,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:20:58,537 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:20:58,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:20:58,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:20:58,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:20:58,541 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:20:58,546 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:20:58,548 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:20:58,549 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:20:58,550 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:20:58,550 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:20:58,551 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:20:58,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:20:58,551 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:20:58,552 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:20:58,554 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:20:58,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:20:58,558 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:20:58,559 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:20:58,559 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:20:58,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:20:58,560 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:20:58,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:20:58,561 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_45d088bf-b4aa-4444-8bbc-6d93f47a2f4e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:20:58,585 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:20:58,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:20:58,586 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:20:58,586 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:20:58,587 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:20:58,587 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:20:58,587 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:20:58,587 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:20:58,587 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:20:58,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:20:58,588 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:20:58,588 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:20:58,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:20:58,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:20:58,589 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:20:58,589 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:20:58,589 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:20:58,589 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:20:58,590 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:20:58,590 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:20:58,591 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:20:58,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:20:58,591 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:20:58,591 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:20:58,591 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:20:58,591 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:20:58,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:20:58,592 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:20:58,592 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:20:58,592 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:20:58,592 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:20:58,592 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:20:58,592 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:20:58,593 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:20:58,593 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/working_dir_45d088bf-b4aa-4444-8bbc-6d93f47a2f4e/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 -> 214842803e5bf2009b57aa1e3a0f5face6e1dd52 [2019-10-22 11:20:58,635 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:20:58,647 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:20:58,650 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:20:58,652 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:20:58,652 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:20:58,653 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_45d088bf-b4aa-4444-8bbc-6d93f47a2f4e/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float3.c [2019-10-22 11:20:58,698 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_45d088bf-b4aa-4444-8bbc-6d93f47a2f4e/bin/utaipan/data/2843b663b/27e05ce563aa4eccb2e132c5132dfecb/FLAGe3f9db6b5 [2019-10-22 11:20:59,059 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:20:59,060 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_45d088bf-b4aa-4444-8bbc-6d93f47a2f4e/sv-benchmarks/c/floats-cbmc-regression/float3.c [2019-10-22 11:20:59,064 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_45d088bf-b4aa-4444-8bbc-6d93f47a2f4e/bin/utaipan/data/2843b663b/27e05ce563aa4eccb2e132c5132dfecb/FLAGe3f9db6b5 [2019-10-22 11:20:59,076 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_45d088bf-b4aa-4444-8bbc-6d93f47a2f4e/bin/utaipan/data/2843b663b/27e05ce563aa4eccb2e132c5132dfecb [2019-10-22 11:20:59,079 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:20:59,080 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:20:59,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:20:59,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:20:59,084 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:20:59,085 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:20:59" (1/1) ... [2019-10-22 11:20:59,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@558317ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:59, skipping insertion in model container [2019-10-22 11:20:59,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:20:59" (1/1) ... [2019-10-22 11:20:59,095 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:20:59,109 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:20:59,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:20:59,288 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:20:59,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:20:59,321 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:20:59,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:59 WrapperNode [2019-10-22 11:20:59,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:20:59,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:20:59,323 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:20:59,323 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:20:59,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:59" (1/1) ... [2019-10-22 11:20:59,338 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:59" (1/1) ... [2019-10-22 11:20:59,446 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:20:59,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:20:59,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:20:59,447 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:20:59,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:59" (1/1) ... [2019-10-22 11:20:59,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:59" (1/1) ... [2019-10-22 11:20:59,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:59" (1/1) ... [2019-10-22 11:20:59,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:59" (1/1) ... [2019-10-22 11:20:59,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:59" (1/1) ... [2019-10-22 11:20:59,466 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:59" (1/1) ... [2019-10-22 11:20:59,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:59" (1/1) ... [2019-10-22 11:20:59,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:20:59,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:20:59,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:20:59,472 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:20:59,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_45d088bf-b4aa-4444-8bbc-6d93f47a2f4e/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 [2019-10-22 11:20:59,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:20:59,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:21:00,220 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:21:00,220 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 11:21:00,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:00 BoogieIcfgContainer [2019-10-22 11:21:00,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:21:00,223 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:21:00,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:21:00,225 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:21:00,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:20:59" (1/3) ... [2019-10-22 11:21:00,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1152d779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:00, skipping insertion in model container [2019-10-22 11:21:00,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:59" (2/3) ... [2019-10-22 11:21:00,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1152d779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:00, skipping insertion in model container [2019-10-22 11:21:00,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:00" (3/3) ... [2019-10-22 11:21:00,229 INFO L109 eAbstractionObserver]: Analyzing ICFG float3.c [2019-10-22 11:21:00,237 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:21:00,243 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:21:00,254 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:21:00,276 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:21:00,277 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:21:00,277 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:21:00,277 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:21:00,277 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:21:00,277 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:21:00,277 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:21:00,277 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:21:00,288 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-10-22 11:21:00,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 11:21:00,294 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:00,295 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:00,296 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:00,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:00,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965381, now seen corresponding path program 1 times [2019-10-22 11:21:00,307 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:00,307 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [641889029] [2019-10-22 11:21:00,307 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_45d088bf-b4aa-4444-8bbc-6d93f47a2f4e/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 [2019-10-22 11:21:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:00,509 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 11:21:00,513 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:00,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:00,582 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:25,303 WARN L191 SmtUtils]: Spent 22.18 s on a formula simplification. DAG size of input: 36 DAG size of output: 31 [2019-10-22 11:21:25,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:25,741 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [641889029] [2019-10-22 11:21:25,741 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:25,742 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-10-22 11:21:25,742 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442977791] [2019-10-22 11:21:25,748 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:21:25,748 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:25,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:21:25,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:21:25,764 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 7 states. [2019-10-22 11:21:33,092 WARN L191 SmtUtils]: Spent 4.53 s on a formula simplification. DAG size of input: 33 DAG size of output: 20 [2019-10-22 11:21:34,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:34,447 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2019-10-22 11:21:34,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 11:21:34,450 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2019-10-22 11:21:34,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:34,457 INFO L225 Difference]: With dead ends: 20 [2019-10-22 11:21:34,457 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:21:34,460 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 32.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:21:34,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:21:34,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:21:34,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:21:34,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:21:34,482 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-10-22 11:21:34,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:34,483 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:21:34,483 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:21:34,483 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:21:34,483 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:21:34,684 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 11:21:34,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:21:34,690 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:21:34,690 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:21:34,690 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:21:34,690 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:21:34,690 INFO L443 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2019-10-22 11:21:34,690 INFO L443 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2019-10-22 11:21:34,691 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 24) no Hoare annotation was computed. [2019-10-22 11:21:34,691 INFO L443 ceAbstractionStarter]: For program point L15(lines 15 16) no Hoare annotation was computed. [2019-10-22 11:21:34,691 INFO L443 ceAbstractionStarter]: For program point L15-2(lines 15 16) no Hoare annotation was computed. [2019-10-22 11:21:34,691 INFO L443 ceAbstractionStarter]: For program point L11(lines 11 25) no Hoare annotation was computed. [2019-10-22 11:21:34,691 INFO L443 ceAbstractionStarter]: For program point L6(lines 6 9) no Hoare annotation was computed. [2019-10-22 11:21:34,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:21:34 BoogieIcfgContainer [2019-10-22 11:21:34,694 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:21:34,694 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:21:34,694 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:21:34,694 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:21:34,695 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:00" (3/4) ... [2019-10-22 11:21:34,698 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:21:34,706 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 11:21:34,706 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:21:34,741 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_45d088bf-b4aa-4444-8bbc-6d93f47a2f4e/bin/utaipan/witness.graphml [2019-10-22 11:21:34,741 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:21:34,745 INFO L168 Benchmark]: Toolchain (without parser) took 35662.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.8 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -143.0 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:34,746 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:34,746 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.34 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:34,747 INFO L168 Benchmark]: Boogie Procedure Inliner took 124.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.8 MB). Free memory was 940.3 MB in the beginning and 1.2 GB in the end (delta: -234.0 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:34,747 INFO L168 Benchmark]: Boogie Preprocessor took 23.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:34,747 INFO L168 Benchmark]: RCFGBuilder took 750.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:34,748 INFO L168 Benchmark]: TraceAbstraction took 34471.17 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: 53.3 MB). Peak memory consumption was 53.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:34,748 INFO L168 Benchmark]: Witness Printer took 46.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:34,751 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 241.34 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 124.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.8 MB). Free memory was 940.3 MB in the beginning and 1.2 GB in the end (delta: -234.0 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 750.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 34471.17 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: 53.3 MB). Peak memory consumption was 53.3 MB. Max. memory is 11.5 GB. * Witness Printer took 46.92 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 24]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Result: SAFE, OverallTime: 34.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 7 SDtfs, 19 SDslu, 13 SDs, 0 SdLazy, 15 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 32.3s 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 25.2s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 900 SizeOfPredicates, 2 NumberOfNonLiveVariables, 10 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...