./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5383e000-d638-45ea-9c01-6218085bc368/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5383e000-d638-45ea-9c01-6218085bc368/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5383e000-d638-45ea-9c01-6218085bc368/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5383e000-d638-45ea-9c01-6218085bc368/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5383e000-d638-45ea-9c01-6218085bc368/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5383e000-d638-45ea-9c01-6218085bc368/bin-2019/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 e0f1bd2a42710b6c2eba96cb622bd79ffd05436a ........................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5383e000-d638-45ea-9c01-6218085bc368/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5383e000-d638-45ea-9c01-6218085bc368/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5383e000-d638-45ea-9c01-6218085bc368/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5383e000-d638-45ea-9c01-6218085bc368/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5383e000-d638-45ea-9c01-6218085bc368/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5383e000-d638-45ea-9c01-6218085bc368/bin-2019/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 e0f1bd2a42710b6c2eba96cb622bd79ffd05436a ........................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 01:34:40,142 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 01:34:40,143 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 01:34:40,148 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 01:34:40,149 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 01:34:40,149 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 01:34:40,150 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 01:34:40,150 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 01:34:40,151 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 01:34:40,152 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 01:34:40,152 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 01:34:40,152 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 01:34:40,153 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 01:34:40,153 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 01:34:40,153 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 01:34:40,154 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 01:34:40,154 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 01:34:40,155 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 01:34:40,156 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 01:34:40,157 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 01:34:40,157 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 01:34:40,158 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 01:34:40,159 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 01:34:40,159 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 01:34:40,159 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 01:34:40,159 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 01:34:40,160 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 01:34:40,160 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 01:34:40,161 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 01:34:40,161 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 01:34:40,161 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 01:34:40,162 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 01:34:40,162 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 01:34:40,162 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 01:34:40,162 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 01:34:40,163 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 01:34:40,163 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5383e000-d638-45ea-9c01-6218085bc368/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 01:34:40,170 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 01:34:40,170 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 01:34:40,170 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 01:34:40,170 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 01:34:40,170 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 01:34:40,170 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 01:34:40,170 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 01:34:40,171 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 01:34:40,171 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 01:34:40,171 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 01:34:40,171 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 01:34:40,171 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 01:34:40,171 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 01:34:40,171 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 01:34:40,171 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 01:34:40,171 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 01:34:40,172 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 01:34:40,172 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 01:34:40,172 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 01:34:40,172 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 01:34:40,172 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 01:34:40,172 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 01:34:40,172 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 01:34:40,172 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 01:34:40,172 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 01:34:40,172 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 01:34:40,172 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 01:34:40,172 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 01:34:40,173 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 01:34:40,173 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 01:34:40,173 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 01:34:40,173 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 01:34:40,173 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 01:34:40,173 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 01:34:40,173 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 01:34:40,173 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 01:34:40,173 INFO L133 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_5383e000-d638-45ea-9c01-6218085bc368/bin-2019/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 -> e0f1bd2a42710b6c2eba96cb622bd79ffd05436a [2018-12-09 01:34:40,190 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 01:34:40,199 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 01:34:40,202 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 01:34:40,203 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 01:34:40,203 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 01:34:40,204 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5383e000-d638-45ea-9c01-6218085bc368/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-12-09 01:34:40,240 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5383e000-d638-45ea-9c01-6218085bc368/bin-2019/utaipan/data/a1b6045ea/d47f4cfd0b83441a9e19e53adcca1951/FLAG93cc38510 [2018-12-09 01:34:40,621 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 01:34:40,621 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5383e000-d638-45ea-9c01-6218085bc368/sv-benchmarks/c/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-12-09 01:34:40,625 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5383e000-d638-45ea-9c01-6218085bc368/bin-2019/utaipan/data/a1b6045ea/d47f4cfd0b83441a9e19e53adcca1951/FLAG93cc38510 [2018-12-09 01:34:40,636 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5383e000-d638-45ea-9c01-6218085bc368/bin-2019/utaipan/data/a1b6045ea/d47f4cfd0b83441a9e19e53adcca1951 [2018-12-09 01:34:40,638 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 01:34:40,639 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 01:34:40,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 01:34:40,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 01:34:40,641 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 01:34:40,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:34:40" (1/1) ... [2018-12-09 01:34:40,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7faede09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:34:40, skipping insertion in model container [2018-12-09 01:34:40,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:34:40" (1/1) ... [2018-12-09 01:34:40,647 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 01:34:40,659 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 01:34:40,750 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:34:40,752 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 01:34:40,765 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:34:40,777 INFO L195 MainTranslator]: Completed translation [2018-12-09 01:34:40,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:34:40 WrapperNode [2018-12-09 01:34:40,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 01:34:40,777 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 01:34:40,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 01:34:40,778 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 01:34:40,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:34:40" (1/1) ... [2018-12-09 01:34:40,791 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:34:40" (1/1) ... [2018-12-09 01:34:40,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 01:34:40,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 01:34:40,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 01:34:40,798 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 01:34:40,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:34:40" (1/1) ... [2018-12-09 01:34:40,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:34:40" (1/1) ... [2018-12-09 01:34:40,834 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:34:40" (1/1) ... [2018-12-09 01:34:40,834 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:34:40" (1/1) ... [2018-12-09 01:34:40,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:34:40" (1/1) ... [2018-12-09 01:34:40,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:34:40" (1/1) ... [2018-12-09 01:34:40,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:34:40" (1/1) ... [2018-12-09 01:34:40,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 01:34:40,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 01:34:40,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 01:34:40,845 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 01:34:40,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:34:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5383e000-d638-45ea-9c01-6218085bc368/bin-2019/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 [2018-12-09 01:34:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 01:34:40,876 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 01:34:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 01:34:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 01:34:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 01:34:40,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 01:34:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure InvSqrt [2018-12-09 01:34:40,877 INFO L138 BoogieDeclarations]: Found implementation of procedure InvSqrt [2018-12-09 01:34:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 01:34:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 01:34:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 01:34:40,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 01:34:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 01:34:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 01:34:40,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 01:34:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 01:34:40,972 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 01:34:40,972 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 01:34:40,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:34:40 BoogieIcfgContainer [2018-12-09 01:34:40,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 01:34:40,973 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 01:34:40,973 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 01:34:40,975 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 01:34:40,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 01:34:40" (1/3) ... [2018-12-09 01:34:40,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240114f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:34:40, skipping insertion in model container [2018-12-09 01:34:40,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:34:40" (2/3) ... [2018-12-09 01:34:40,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240114f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:34:40, skipping insertion in model container [2018-12-09 01:34:40,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:34:40" (3/3) ... [2018-12-09 01:34:40,977 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-12-09 01:34:40,983 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 01:34:40,988 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 01:34:40,997 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 01:34:41,014 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 01:34:41,015 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 01:34:41,015 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 01:34:41,015 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 01:34:41,015 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 01:34:41,015 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 01:34:41,015 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 01:34:41,015 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 01:34:41,025 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-12-09 01:34:41,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 01:34:41,028 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:34:41,028 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:34:41,030 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:34:41,033 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:34:41,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1573477556, now seen corresponding path program 1 times [2018-12-09 01:34:41,034 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:34:41,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:34:41,065 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:34:41,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:34:41,065 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:34:41,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 01:34:41,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 01:34:41,118 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 01:34:41,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 01:34:41 BoogieIcfgContainer [2018-12-09 01:34:41,134 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 01:34:41,134 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 01:34:41,134 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 01:34:41,134 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 01:34:41,134 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:34:40" (3/4) ... [2018-12-09 01:34:41,136 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 01:34:41,136 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 01:34:41,137 INFO L168 Benchmark]: Toolchain (without parser) took 498.75 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -103.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:34:41,138 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:34:41,138 INFO L168 Benchmark]: CACSL2BoogieTranslator took 138.01 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 945.9 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-09 01:34:41,139 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.66 ms. Allocated memory is still 1.0 GB. Free memory is still 945.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:34:41,139 INFO L168 Benchmark]: Boogie Preprocessor took 47.05 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -145.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-12-09 01:34:41,139 INFO L168 Benchmark]: RCFGBuilder took 127.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-12-09 01:34:41,140 INFO L168 Benchmark]: TraceAbstraction took 160.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 01:34:41,140 INFO L168 Benchmark]: Witness Printer took 2.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 01:34:41,142 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 138.01 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 945.9 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.66 ms. Allocated memory is still 1.0 GB. Free memory is still 945.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 47.05 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -145.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 127.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 160.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 2.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 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: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryDOUBLEComparisonOperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 17. Possible FailurePath: [L40] float a,r; [L42] a = __VERIFIER_nondet_float() [L45] CALL, EXPR InvSqrt(a) VAL [\old(x)=11] [L17] float xhalf = 0.5f*x; [L18] union float_int i; [L19] i.f = x [L20] EXPR i.i [L20] i.i = 0x5f3759df - (i.i>>1) [L21] EXPR i.f [L21] x = i.f [L22] x = x*(1.5f-xhalf*x*x) [L23] return x; [L23] return x; VAL [\old(x)=11, \result=12, x=12] [L45] RET, EXPR InvSqrt(a) VAL [a=11, InvSqrt(a)=12] [L45] r = InvSqrt(a) [L47] CALL __VERIFIER_assert(r >= 0.f && r <= 10.) VAL [\old(cond)=0] [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.23-635dfa2 [2018-12-09 01:34:42,465 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 01:34:42,466 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 01:34:42,472 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 01:34:42,472 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 01:34:42,472 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 01:34:42,473 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 01:34:42,474 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 01:34:42,475 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 01:34:42,475 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 01:34:42,475 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 01:34:42,476 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 01:34:42,476 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 01:34:42,476 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 01:34:42,477 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 01:34:42,477 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 01:34:42,478 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 01:34:42,479 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 01:34:42,479 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 01:34:42,480 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 01:34:42,481 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 01:34:42,481 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 01:34:42,482 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 01:34:42,482 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 01:34:42,483 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 01:34:42,483 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 01:34:42,484 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 01:34:42,484 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 01:34:42,484 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 01:34:42,485 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 01:34:42,485 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 01:34:42,485 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 01:34:42,486 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 01:34:42,486 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 01:34:42,486 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 01:34:42,486 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 01:34:42,487 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5383e000-d638-45ea-9c01-6218085bc368/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 01:34:42,494 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 01:34:42,494 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 01:34:42,494 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 01:34:42,494 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 01:34:42,494 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 01:34:42,495 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 01:34:42,495 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 01:34:42,495 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 01:34:42,495 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 01:34:42,495 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 01:34:42,495 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 01:34:42,495 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 01:34:42,495 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 01:34:42,496 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 01:34:42,496 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 01:34:42,496 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 01:34:42,496 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 01:34:42,496 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 01:34:42,496 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 01:34:42,496 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 01:34:42,496 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 01:34:42,496 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 01:34:42,496 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 01:34:42,496 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 01:34:42,496 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 01:34:42,496 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 01:34:42,497 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 01:34:42,497 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 01:34:42,497 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 01:34:42,497 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 01:34:42,497 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 01:34:42,497 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 01:34:42,497 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 01:34:42,497 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 01:34:42,497 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 01:34:42,497 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_5383e000-d638-45ea-9c01-6218085bc368/bin-2019/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 -> e0f1bd2a42710b6c2eba96cb622bd79ffd05436a [2018-12-09 01:34:42,515 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 01:34:42,523 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 01:34:42,525 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 01:34:42,526 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 01:34:42,527 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 01:34:42,527 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5383e000-d638-45ea-9c01-6218085bc368/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-12-09 01:34:42,564 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5383e000-d638-45ea-9c01-6218085bc368/bin-2019/utaipan/data/3a27a98ca/f5720b7f8e1c4e269ac037710c765538/FLAG0a40b5707 [2018-12-09 01:34:42,956 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 01:34:42,956 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5383e000-d638-45ea-9c01-6218085bc368/sv-benchmarks/c/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-12-09 01:34:42,960 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5383e000-d638-45ea-9c01-6218085bc368/bin-2019/utaipan/data/3a27a98ca/f5720b7f8e1c4e269ac037710c765538/FLAG0a40b5707 [2018-12-09 01:34:42,968 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5383e000-d638-45ea-9c01-6218085bc368/bin-2019/utaipan/data/3a27a98ca/f5720b7f8e1c4e269ac037710c765538 [2018-12-09 01:34:42,970 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 01:34:42,970 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 01:34:42,971 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 01:34:42,971 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 01:34:42,973 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 01:34:42,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:34:42" (1/1) ... [2018-12-09 01:34:42,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b7a218c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:34:42, skipping insertion in model container [2018-12-09 01:34:42,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:34:42" (1/1) ... [2018-12-09 01:34:42,980 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 01:34:42,990 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 01:34:43,079 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:34:43,082 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 01:34:43,095 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:34:43,110 INFO L195 MainTranslator]: Completed translation [2018-12-09 01:34:43,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:34:43 WrapperNode [2018-12-09 01:34:43,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 01:34:43,111 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 01:34:43,111 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 01:34:43,111 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 01:34:43,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:34:43" (1/1) ... [2018-12-09 01:34:43,122 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:34:43" (1/1) ... [2018-12-09 01:34:43,126 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 01:34:43,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 01:34:43,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 01:34:43,127 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 01:34:43,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:34:43" (1/1) ... [2018-12-09 01:34:43,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:34:43" (1/1) ... [2018-12-09 01:34:43,134 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:34:43" (1/1) ... [2018-12-09 01:34:43,134 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:34:43" (1/1) ... [2018-12-09 01:34:43,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:34:43" (1/1) ... [2018-12-09 01:34:43,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:34:43" (1/1) ... [2018-12-09 01:34:43,142 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:34:43" (1/1) ... [2018-12-09 01:34:43,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 01:34:43,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 01:34:43,144 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 01:34:43,144 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 01:34:43,145 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:34:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5383e000-d638-45ea-9c01-6218085bc368/bin-2019/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 [2018-12-09 01:34:43,207 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 01:34:43,207 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 01:34:43,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-09 01:34:43,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 01:34:43,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 01:34:43,207 INFO L130 BoogieDeclarations]: Found specification of procedure InvSqrt [2018-12-09 01:34:43,207 INFO L138 BoogieDeclarations]: Found implementation of procedure InvSqrt [2018-12-09 01:34:43,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 01:34:43,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 01:34:43,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 01:34:43,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 01:34:43,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-09 01:34:43,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 01:34:43,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 01:34:43,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 01:34:43,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 01:34:44,355 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:34:44,378 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 01:34:44,378 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 01:34:44,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:34:44 BoogieIcfgContainer [2018-12-09 01:34:44,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 01:34:44,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 01:34:44,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 01:34:44,380 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 01:34:44,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 01:34:42" (1/3) ... [2018-12-09 01:34:44,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c872ca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:34:44, skipping insertion in model container [2018-12-09 01:34:44,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:34:43" (2/3) ... [2018-12-09 01:34:44,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c872ca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:34:44, skipping insertion in model container [2018-12-09 01:34:44,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:34:44" (3/3) ... [2018-12-09 01:34:44,383 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-12-09 01:34:44,389 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 01:34:44,393 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 01:34:44,402 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 01:34:44,418 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 01:34:44,418 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 01:34:44,419 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 01:34:44,419 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 01:34:44,419 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 01:34:44,419 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 01:34:44,419 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 01:34:44,419 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 01:34:44,419 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 01:34:44,428 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-12-09 01:34:44,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 01:34:44,431 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:34:44,432 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:34:44,433 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:34:44,436 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:34:44,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1573477556, now seen corresponding path program 1 times [2018-12-09 01:34:44,438 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 01:34:44,438 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5383e000-d638-45ea-9c01-6218085bc368/bin-2019/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 [2018-12-09 01:34:44,442 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:34:45,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:34:45,545 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:34:52,302 WARN L180 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 30 [2018-12-09 01:34:54,335 WARN L832 $PredicateComparison]: unable to prove that (exists ((|v_q#valueAsBitvector_2| (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) |v_q#valueAsBitvector_2|) ((_ extract 30 23) |v_q#valueAsBitvector_2|) ((_ extract 22 0) |v_q#valueAsBitvector_2|)))) (and (= |c_main_#t~ret4| (let ((.cse0 (let ((.cse2 (bvadd (bvneg (bvashr |v_q#valueAsBitvector_2| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven .cse0 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse1) .cse0) .cse0))))) (fp.geq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.leq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven 100.0))))) is different from false [2018-12-09 01:34:56,368 WARN L854 $PredicateComparison]: unable to prove that (exists ((|v_q#valueAsBitvector_2| (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) |v_q#valueAsBitvector_2|) ((_ extract 30 23) |v_q#valueAsBitvector_2|) ((_ extract 22 0) |v_q#valueAsBitvector_2|)))) (and (= |c_main_#t~ret4| (let ((.cse0 (let ((.cse2 (bvadd (bvneg (bvashr |v_q#valueAsBitvector_2| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven .cse0 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse1) .cse0) .cse0))))) (fp.geq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.leq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven 100.0))))) is different from true [2018-12-09 01:34:58,398 WARN L832 $PredicateComparison]: unable to prove that (exists ((|v_q#valueAsBitvector_2| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_q#valueAsBitvector_2|) ((_ extract 30 23) |v_q#valueAsBitvector_2|) ((_ extract 22 0) |v_q#valueAsBitvector_2|)))) (and (fp.geq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (= c_main_~r~0 (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_q#valueAsBitvector_2| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven .cse1 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse0) .cse1) .cse1))))) (fp.leq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven 100.0))))) is different from false [2018-12-09 01:35:00,427 WARN L854 $PredicateComparison]: unable to prove that (exists ((|v_q#valueAsBitvector_2| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_q#valueAsBitvector_2|) ((_ extract 30 23) |v_q#valueAsBitvector_2|) ((_ extract 22 0) |v_q#valueAsBitvector_2|)))) (and (fp.geq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (= c_main_~r~0 (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_q#valueAsBitvector_2| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven .cse1 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse0) .cse1) .cse1))))) (fp.leq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven 100.0))))) is different from true [2018-12-09 01:35:16,757 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse7 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (and (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32)) (exists ((v_prenex_3 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_prenex_3) ((_ extract 30 23) v_prenex_3) ((_ extract 22 0) v_prenex_3)))) (let ((.cse1 (let ((.cse2 (let ((.cse3 (bvadd (bvneg (bvashr v_prenex_3 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.mul roundNearestTiesToEven .cse2 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse0) .cse2) .cse2)))))) (and (fp.geq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.leq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.geq .cse1 (_ +zero 8 24)) (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven .cse1) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))))))) (and (exists ((|v_q#valueAsBitvector_2| (_ BitVec 32))) (let ((.cse4 (fp ((_ extract 31 31) |v_q#valueAsBitvector_2|) ((_ extract 30 23) |v_q#valueAsBitvector_2|) ((_ extract 22 0) |v_q#valueAsBitvector_2|)))) (and (fp.geq .cse4 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.geq (let ((.cse5 (let ((.cse6 (bvadd (bvneg (bvashr |v_q#valueAsBitvector_2| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse6) ((_ extract 30 23) .cse6) ((_ extract 22 0) .cse6))))) (fp.mul roundNearestTiesToEven .cse5 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse4) .cse5) .cse5)))) (_ +zero 8 24))) (fp.leq .cse4 ((_ to_fp 8 24) roundNearestTiesToEven 100.0))))) .cse7) (and (exists ((v_prenex_1 (_ BitVec 32))) (let ((.cse8 (fp ((_ extract 31 31) v_prenex_1) ((_ extract 30 23) v_prenex_1) ((_ extract 22 0) v_prenex_1)))) (and (fp.leq .cse8 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.geq .cse8 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (let ((.cse9 (let ((.cse10 (bvadd (bvneg (bvashr v_prenex_1 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse10) ((_ extract 30 23) .cse10) ((_ extract 22 0) .cse10))))) (fp.mul roundNearestTiesToEven .cse9 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse8) .cse9) .cse9))))) ((_ to_fp 11 53) roundNearestTiesToEven 10.0)))))) .cse7))) is different from false [2018-12-09 01:35:31,087 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and .cse0 (exists ((|v_q#valueAsBitvector_2| (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) |v_q#valueAsBitvector_2|) ((_ extract 30 23) |v_q#valueAsBitvector_2|) ((_ extract 22 0) |v_q#valueAsBitvector_2|)))) (and (fp.geq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.geq (let ((.cse2 (let ((.cse3 (bvadd (bvneg (bvashr |v_q#valueAsBitvector_2| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.mul roundNearestTiesToEven .cse2 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse1) .cse2) .cse2)))) (_ +zero 8 24))) (fp.leq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)))))) (and .cse0 (exists ((v_prenex_1 (_ BitVec 32))) (let ((.cse4 (fp ((_ extract 31 31) v_prenex_1) ((_ extract 30 23) v_prenex_1) ((_ extract 22 0) v_prenex_1)))) (and (fp.leq .cse4 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.geq .cse4 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (let ((.cse5 (let ((.cse6 (bvadd (bvneg (bvashr v_prenex_1 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse6) ((_ extract 30 23) .cse6) ((_ extract 22 0) .cse6))))) (fp.mul roundNearestTiesToEven .cse5 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse4) .cse5) .cse5))))) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))))))) (and (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (exists ((v_prenex_3 (_ BitVec 32))) (let ((.cse7 (fp ((_ extract 31 31) v_prenex_3) ((_ extract 30 23) v_prenex_3) ((_ extract 22 0) v_prenex_3)))) (let ((.cse8 (let ((.cse9 (let ((.cse10 (bvadd (bvneg (bvashr v_prenex_3 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse10) ((_ extract 30 23) .cse10) ((_ extract 22 0) .cse10))))) (fp.mul roundNearestTiesToEven .cse9 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse7) .cse9) .cse9)))))) (and (fp.geq .cse7 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.leq .cse7 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.geq .cse8 (_ +zero 8 24)) (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven .cse8) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))))))))) is different from false [2018-12-09 01:35:41,312 WARN L832 $PredicateComparison]: unable to prove that (or (exists ((|v_q#valueAsBitvector_2| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_q#valueAsBitvector_2|) ((_ extract 30 23) |v_q#valueAsBitvector_2|) ((_ extract 22 0) |v_q#valueAsBitvector_2|)))) (and (fp.geq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.geq (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_q#valueAsBitvector_2| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven .cse1 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse0) .cse1) .cse1)))) (_ +zero 8 24))) (fp.leq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven 100.0))))) (exists ((v_prenex_1 (_ BitVec 32))) (let ((.cse3 (fp ((_ extract 31 31) v_prenex_1) ((_ extract 30 23) v_prenex_1) ((_ extract 22 0) v_prenex_1)))) (and (fp.leq .cse3 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.geq .cse3 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (let ((.cse4 (let ((.cse5 (bvadd (bvneg (bvashr v_prenex_1 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul roundNearestTiesToEven .cse4 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse3) .cse4) .cse4))))) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))))))) is different from false [2018-12-09 01:35:43,350 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((|v_q#valueAsBitvector_2| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_q#valueAsBitvector_2|) ((_ extract 30 23) |v_q#valueAsBitvector_2|) ((_ extract 22 0) |v_q#valueAsBitvector_2|)))) (and (fp.geq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.geq (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_q#valueAsBitvector_2| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven .cse1 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse0) .cse1) .cse1)))) (_ +zero 8 24))) (fp.leq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven 100.0))))) (exists ((v_prenex_1 (_ BitVec 32))) (let ((.cse3 (fp ((_ extract 31 31) v_prenex_1) ((_ extract 30 23) v_prenex_1) ((_ extract 22 0) v_prenex_1)))) (and (fp.leq .cse3 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.geq .cse3 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (let ((.cse4 (let ((.cse5 (bvadd (bvneg (bvashr v_prenex_1 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul roundNearestTiesToEven .cse4 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse3) .cse4) .cse4))))) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))))))) is different from true [2018-12-09 01:35:43,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:35:43,355 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 01:35:43,367 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:35:43,367 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 01:35:43,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 01:35:43,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 01:35:43,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=7, Unknown=10, NotChecked=40, Total=72 [2018-12-09 01:35:43,379 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 9 states. [2018-12-09 01:35:49,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:35:49,646 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2018-12-09 01:35:49,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 01:35:49,679 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2018-12-09 01:35:49,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:35:49,684 INFO L225 Difference]: With dead ends: 30 [2018-12-09 01:35:49,684 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 01:35:49,686 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.1s TimeCoverageRelationStatistics Valid=15, Invalid=7, Unknown=10, NotChecked=40, Total=72 [2018-12-09 01:35:49,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 01:35:49,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 01:35:49,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 01:35:49,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 01:35:49,704 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-12-09 01:35:49,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:35:49,704 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 01:35:49,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 01:35:49,704 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 01:35:49,704 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 01:35:49,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 01:36:15,286 WARN L180 SmtUtils]: Spent 25.53 s on a formula simplification. DAG size of input: 115 DAG size of output: 1 [2018-12-09 01:36:19,353 WARN L180 SmtUtils]: Spent 4.07 s on a formula simplification that was a NOOP. DAG size: 34 [2018-12-09 01:36:19,355 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 01:36:19,355 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 01:36:19,355 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 01:36:19,355 INFO L451 ceAbstractionStarter]: At program point InvSqrtENTRY(lines 15 24) the Hoare annotation is: true [2018-12-09 01:36:19,355 INFO L448 ceAbstractionStarter]: For program point InvSqrtFINAL(lines 15 24) no Hoare annotation was computed. [2018-12-09 01:36:19,356 INFO L448 ceAbstractionStarter]: For program point InvSqrtEXIT(lines 15 24) no Hoare annotation was computed. [2018-12-09 01:36:19,356 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 01:36:19,356 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 01:36:19,356 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 01:36:19,356 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 01:36:19,356 INFO L444 ceAbstractionStarter]: At program point L47(line 47) the Hoare annotation is: (exists ((|v_q#valueAsBitvector_2| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_q#valueAsBitvector_2|) ((_ extract 30 23) |v_q#valueAsBitvector_2|) ((_ extract 22 0) |v_q#valueAsBitvector_2|)))) (and (fp.geq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (= main_~r~0 (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_q#valueAsBitvector_2| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven .cse1 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse0) .cse1) .cse1))))) (fp.leq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven 100.0))))) [2018-12-09 01:36:19,356 INFO L448 ceAbstractionStarter]: For program point L47-1(line 47) no Hoare annotation was computed. [2018-12-09 01:36:19,357 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 38 49) the Hoare annotation is: true [2018-12-09 01:36:19,357 INFO L444 ceAbstractionStarter]: At program point L45(line 45) the Hoare annotation is: (and (fp.geq main_~a~0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.leq main_~a~0 ((_ to_fp 8 24) roundNearestTiesToEven 100.0))) [2018-12-09 01:36:19,357 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 38 49) no Hoare annotation was computed. [2018-12-09 01:36:19,357 INFO L448 ceAbstractionStarter]: For program point L45-1(line 45) no Hoare annotation was computed. [2018-12-09 01:36:19,357 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 38 49) no Hoare annotation was computed. [2018-12-09 01:36:19,357 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 8) the Hoare annotation is: true [2018-12-09 01:36:19,358 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2018-12-09 01:36:19,358 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 8) no Hoare annotation was computed. [2018-12-09 01:36:19,358 INFO L448 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2018-12-09 01:36:19,358 INFO L448 ceAbstractionStarter]: For program point L8-1(line 8) no Hoare annotation was computed. [2018-12-09 01:36:19,358 INFO L448 ceAbstractionStarter]: For program point L8-3(line 8) no Hoare annotation was computed. [2018-12-09 01:36:19,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 01:36:19 BoogieIcfgContainer [2018-12-09 01:36:19,360 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 01:36:19,361 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 01:36:19,361 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 01:36:19,361 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 01:36:19,361 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:34:44" (3/4) ... [2018-12-09 01:36:19,364 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 01:36:19,369 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 01:36:19,369 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure InvSqrt [2018-12-09 01:36:19,370 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 01:36:19,370 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-12-09 01:36:19,373 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-12-09 01:36:19,373 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-09 01:36:19,374 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 01:36:19,374 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 01:36:19,399 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5383e000-d638-45ea-9c01-6218085bc368/bin-2019/utaipan/witness.graphml [2018-12-09 01:36:19,399 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 01:36:19,400 INFO L168 Benchmark]: Toolchain (without parser) took 96430.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 943.4 MB in the beginning and 1.0 GB in the end (delta: -99.2 MB). Peak memory consumption was 36.6 MB. Max. memory is 11.5 GB. [2018-12-09 01:36:19,400 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:36:19,401 INFO L168 Benchmark]: CACSL2BoogieTranslator took 139.31 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 931.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-12-09 01:36:19,401 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.90 ms. Allocated memory is still 1.0 GB. Free memory was 931.3 MB in the beginning and 925.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 01:36:19,401 INFO L168 Benchmark]: Boogie Preprocessor took 17.23 ms. Allocated memory is still 1.0 GB. Free memory is still 925.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:36:19,401 INFO L168 Benchmark]: RCFGBuilder took 1233.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 925.9 MB in the beginning and 1.1 GB in the end (delta: -184.4 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2018-12-09 01:36:19,402 INFO L168 Benchmark]: TraceAbstraction took 94981.89 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: 67.8 MB). Peak memory consumption was 67.8 MB. Max. memory is 11.5 GB. [2018-12-09 01:36:19,402 INFO L168 Benchmark]: Witness Printer took 38.74 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. [2018-12-09 01:36:19,403 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 139.31 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 931.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.90 ms. Allocated memory is still 1.0 GB. Free memory was 931.3 MB in the beginning and 925.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.23 ms. Allocated memory is still 1.0 GB. Free memory is still 925.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1233.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 925.9 MB in the beginning and 1.1 GB in the end (delta: -184.4 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 94981.89 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: 67.8 MB). Peak memory consumption was 67.8 MB. Max. memory is 11.5 GB. * Witness Printer took 38.74 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: 8]: 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 5 procedures, 23 locations, 1 error locations. SAFE Result, 94.9s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 6.3s AutomataDifference, 0.0s DeadEndRemovalTime, 29.6s HoareAnnotationTime, HoareTripleCheckerStatistics: 14 SDtfs, 0 SDslu, 49 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 6.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 8 NumberOfFragments, 132 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 930 FormulaSimplificationTreeSizeReductionInter, 29.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 57.8s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 14 ConstructedInterpolants, 7 QuantifiedInterpolants, 22372 SizeOfPredicates, 5 NumberOfNonLiveVariables, 49 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...