./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1052c.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1052c.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 69b156b7cb8e47e9e9902f33725c5b7467b2d17a .......................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1052c.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 69b156b7cb8e47e9e9902f33725c5b7467b2d17a .............................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 14:22:38,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:22:38,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:22:38,155 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:22:38,155 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:22:38,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:22:38,157 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:22:38,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:22:38,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:22:38,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:22:38,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:22:38,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:22:38,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:22:38,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:22:38,162 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:22:38,163 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:22:38,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:22:38,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:22:38,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:22:38,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:22:38,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:22:38,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:22:38,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:22:38,170 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:22:38,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:22:38,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:22:38,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:22:38,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:22:38,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:22:38,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:22:38,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:22:38,174 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:22:38,175 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:22:38,175 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:22:38,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:22:38,176 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:22:38,176 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:22:38,176 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:22:38,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:22:38,177 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:22:38,177 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:22:38,178 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 14:22:38,187 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:22:38,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:22:38,187 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 14:22:38,188 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 14:22:38,188 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 14:22:38,188 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:22:38,188 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:22:38,188 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:22:38,188 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:22:38,188 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:22:38,188 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 14:22:38,188 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:22:38,188 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 14:22:38,189 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:22:38,189 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:22:38,189 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:22:38,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 14:22:38,189 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:22:38,189 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:22:38,189 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:22:38,189 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:22:38,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:22:38,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:22:38,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:22:38,190 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 14:22:38,190 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 14:22:38,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 14:22:38,190 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 14:22:38,190 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:22:38,190 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69b156b7cb8e47e9e9902f33725c5b7467b2d17a [2019-12-07 14:22:38,288 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:22:38,297 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:22:38,299 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:22:38,300 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:22:38,301 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:22:38,301 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1052c.c [2019-12-07 14:22:38,340 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/bin/uautomizer/data/ee08336fc/e436b697d6104567890266b76cc13b6a/FLAG6de34ba1b [2019-12-07 14:22:38,772 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:22:38,773 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/sv-benchmarks/c/float-newlib/double_req_bl_1052c.c [2019-12-07 14:22:38,779 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/bin/uautomizer/data/ee08336fc/e436b697d6104567890266b76cc13b6a/FLAG6de34ba1b [2019-12-07 14:22:38,790 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/bin/uautomizer/data/ee08336fc/e436b697d6104567890266b76cc13b6a [2019-12-07 14:22:38,792 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:22:38,794 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:22:38,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:22:38,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:22:38,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:22:38,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:22:38" (1/1) ... [2019-12-07 14:22:38,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48b8aa41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:38, skipping insertion in model container [2019-12-07 14:22:38,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:22:38" (1/1) ... [2019-12-07 14:22:38,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:22:38,825 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:22:38,982 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:22:38,985 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:22:39,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:22:39,020 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:22:39,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:39 WrapperNode [2019-12-07 14:22:39,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:22:39,021 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:22:39,021 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:22:39,021 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:22:39,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:39" (1/1) ... [2019-12-07 14:22:39,033 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:39" (1/1) ... [2019-12-07 14:22:39,049 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:22:39,049 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:22:39,049 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:22:39,049 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:22:39,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:39" (1/1) ... [2019-12-07 14:22:39,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:39" (1/1) ... [2019-12-07 14:22:39,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:39" (1/1) ... [2019-12-07 14:22:39,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:39" (1/1) ... [2019-12-07 14:22:39,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:39" (1/1) ... [2019-12-07 14:22:39,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:39" (1/1) ... [2019-12-07 14:22:39,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:39" (1/1) ... [2019-12-07 14:22:39,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:22:39,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:22:39,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:22:39,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:22:39,070 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:22:39,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 14:22:39,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 14:22:39,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 14:22:39,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:22:39,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:22:39,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 14:22:39,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 14:22:39,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 14:22:39,302 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:22:39,302 INFO L287 CfgBuilder]: Removed 14 assume(true) statements. [2019-12-07 14:22:39,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:22:39 BoogieIcfgContainer [2019-12-07 14:22:39,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:22:39,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 14:22:39,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 14:22:39,306 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 14:22:39,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 02:22:38" (1/3) ... [2019-12-07 14:22:39,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@358ca36c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:22:39, skipping insertion in model container [2019-12-07 14:22:39,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:39" (2/3) ... [2019-12-07 14:22:39,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@358ca36c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:22:39, skipping insertion in model container [2019-12-07 14:22:39,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:22:39" (3/3) ... [2019-12-07 14:22:39,308 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052c.c [2019-12-07 14:22:39,314 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 14:22:39,318 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 14:22:39,325 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 14:22:39,341 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 14:22:39,342 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 14:22:39,342 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 14:22:39,342 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:22:39,342 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:22:39,342 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 14:22:39,342 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:22:39,342 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 14:22:39,351 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2019-12-07 14:22:39,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 14:22:39,356 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:22:39,356 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:22:39,356 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:22:39,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:39,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1930029915, now seen corresponding path program 1 times [2019-12-07 14:22:39,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:39,366 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161724466] [2019-12-07 14:22:39,366 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:39,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:22:39,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:22:39,438 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161724466] [2019-12-07 14:22:39,438 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:22:39,438 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 14:22:39,439 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246257980] [2019-12-07 14:22:39,442 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 14:22:39,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:22:39,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 14:22:39,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 14:22:39,452 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2019-12-07 14:22:39,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:22:39,464 INFO L93 Difference]: Finished difference Result 74 states and 118 transitions. [2019-12-07 14:22:39,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 14:22:39,465 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-12-07 14:22:39,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:22:39,472 INFO L225 Difference]: With dead ends: 74 [2019-12-07 14:22:39,472 INFO L226 Difference]: Without dead ends: 35 [2019-12-07 14:22:39,474 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 14:22:39,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-12-07 14:22:39,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-12-07 14:22:39,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-12-07 14:22:39,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 50 transitions. [2019-12-07 14:22:39,498 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 50 transitions. Word has length 11 [2019-12-07 14:22:39,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:22:39,498 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 50 transitions. [2019-12-07 14:22:39,498 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 14:22:39,498 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 50 transitions. [2019-12-07 14:22:39,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 14:22:39,499 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:22:39,499 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:22:39,499 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:22:39,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:39,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1310108990, now seen corresponding path program 1 times [2019-12-07 14:22:39,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:39,500 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219620119] [2019-12-07 14:22:39,500 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:39,554 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:22:39,554 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 14:22:39,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 02:22:39 BoogieIcfgContainer [2019-12-07 14:22:39,574 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 14:22:39,574 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:22:39,574 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:22:39,574 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:22:39,575 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:22:39" (3/4) ... [2019-12-07 14:22:39,577 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 14:22:39,577 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:22:39,579 INFO L168 Benchmark]: Toolchain (without parser) took 784.75 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 78.1 MB). Free memory was 940.9 MB in the beginning and 1.0 GB in the end (delta: -76.9 MB). Peak memory consumption was 1.2 MB. Max. memory is 11.5 GB. [2019-12-07 14:22:39,579 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:22:39,580 INFO L168 Benchmark]: CACSL2BoogieTranslator took 225.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 78.1 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -132.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 14:22:39,580 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.39 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. [2019-12-07 14:22:39,580 INFO L168 Benchmark]: Boogie Preprocessor took 20.04 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:22:39,581 INFO L168 Benchmark]: RCFGBuilder took 233.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2019-12-07 14:22:39,581 INFO L168 Benchmark]: TraceAbstraction took 269.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2019-12-07 14:22:39,582 INFO L168 Benchmark]: Witness Printer took 3.10 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:22:39,584 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 225.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 78.1 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -132.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.39 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. * Boogie Preprocessor took 20.04 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 233.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 269.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.10 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 103]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 37, overapproximation of bitwiseOr at line 38, overapproximation of someUnaryDOUBLEoperation at line 98, overapproximation of bitwiseAnd at line 25, overapproximation of someBinaryDOUBLEComparisonOperation at line 102. Possible FailurePath: [L14] static const double huge_floor = 1.0e300; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L98] double x = -0.0; [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L26] COND TRUE j0 < 20 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L27] COND FALSE !(j0 < 0) [L37] i = (0x000fffff) >> j0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L38] COND TRUE ((i0 & i) | i1) == 0 [L39] return x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L99] double res = floor_double(x); [L102] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L102] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L103] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 53 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 14:22:40,876 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:22:40,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:22:40,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:22:40,885 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:22:40,886 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:22:40,887 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:22:40,888 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:22:40,890 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:22:40,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:22:40,891 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:22:40,892 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:22:40,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:22:40,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:22:40,893 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:22:40,894 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:22:40,895 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:22:40,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:22:40,897 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:22:40,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:22:40,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:22:40,900 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:22:40,901 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:22:40,902 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:22:40,904 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:22:40,904 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:22:40,904 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:22:40,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:22:40,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:22:40,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:22:40,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:22:40,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:22:40,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:22:40,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:22:40,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:22:40,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:22:40,908 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:22:40,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:22:40,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:22:40,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:22:40,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:22:40,910 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 14:22:40,920 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:22:40,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:22:40,921 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 14:22:40,921 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 14:22:40,922 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 14:22:40,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:22:40,922 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:22:40,922 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:22:40,922 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:22:40,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 14:22:40,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:22:40,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 14:22:40,923 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 14:22:40,923 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 14:22:40,923 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:22:40,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:22:40,923 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:22:40,924 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 14:22:40,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:22:40,924 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:22:40,924 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:22:40,924 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:22:40,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:22:40,924 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:22:40,925 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:22:40,925 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 14:22:40,925 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 14:22:40,925 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 14:22:40,925 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 14:22:40,925 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:22:40,925 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 14:22:40,926 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69b156b7cb8e47e9e9902f33725c5b7467b2d17a [2019-12-07 14:22:41,101 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:22:41,111 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:22:41,114 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:22:41,115 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:22:41,115 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:22:41,116 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1052c.c [2019-12-07 14:22:41,158 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/bin/uautomizer/data/53760451e/b328be32a1ef4f2faef2754b12eb05e2/FLAGd06b80ffd [2019-12-07 14:22:41,571 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:22:41,571 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/sv-benchmarks/c/float-newlib/double_req_bl_1052c.c [2019-12-07 14:22:41,576 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/bin/uautomizer/data/53760451e/b328be32a1ef4f2faef2754b12eb05e2/FLAGd06b80ffd [2019-12-07 14:22:41,941 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/bin/uautomizer/data/53760451e/b328be32a1ef4f2faef2754b12eb05e2 [2019-12-07 14:22:41,946 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:22:41,949 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:22:41,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:22:41,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:22:41,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:22:41,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:22:41" (1/1) ... [2019-12-07 14:22:41,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@440b73fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:41, skipping insertion in model container [2019-12-07 14:22:41,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:22:41" (1/1) ... [2019-12-07 14:22:41,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:22:41,971 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:22:42,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:22:42,084 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:22:42,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:22:42,123 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:22:42,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:42 WrapperNode [2019-12-07 14:22:42,123 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:22:42,123 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:22:42,124 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:22:42,124 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:22:42,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:42" (1/1) ... [2019-12-07 14:22:42,136 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:42" (1/1) ... [2019-12-07 14:22:42,181 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:22:42,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:22:42,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:22:42,182 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:22:42,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:42" (1/1) ... [2019-12-07 14:22:42,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:42" (1/1) ... [2019-12-07 14:22:42,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:42" (1/1) ... [2019-12-07 14:22:42,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:42" (1/1) ... [2019-12-07 14:22:42,198 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:42" (1/1) ... [2019-12-07 14:22:42,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:42" (1/1) ... [2019-12-07 14:22:42,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:42" (1/1) ... [2019-12-07 14:22:42,205 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:22:42,206 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:22:42,206 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:22:42,206 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:22:42,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:22:42,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 14:22:42,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 14:22:42,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 14:22:42,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 14:22:42,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:22:42,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:22:42,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 14:22:42,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 14:22:43,137 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:22:43,137 INFO L287 CfgBuilder]: Removed 14 assume(true) statements. [2019-12-07 14:22:43,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:22:43 BoogieIcfgContainer [2019-12-07 14:22:43,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:22:43,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 14:22:43,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 14:22:43,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 14:22:43,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 02:22:41" (1/3) ... [2019-12-07 14:22:43,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f8d5ab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:22:43, skipping insertion in model container [2019-12-07 14:22:43,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:42" (2/3) ... [2019-12-07 14:22:43,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f8d5ab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:22:43, skipping insertion in model container [2019-12-07 14:22:43,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:22:43" (3/3) ... [2019-12-07 14:22:43,143 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052c.c [2019-12-07 14:22:43,150 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 14:22:43,154 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 14:22:43,161 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 14:22:43,176 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 14:22:43,176 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 14:22:43,176 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 14:22:43,176 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:22:43,176 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:22:43,176 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 14:22:43,176 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:22:43,176 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 14:22:43,185 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2019-12-07 14:22:43,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 14:22:43,189 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:22:43,190 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:22:43,190 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:22:43,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:43,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1930029915, now seen corresponding path program 1 times [2019-12-07 14:22:43,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 14:22:43,201 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1820811995] [2019-12-07 14:22:43,201 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 14:22:43,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:22:43,251 INFO L264 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 14:22:43,254 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:22:43,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:22:43,264 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:22:43,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:22:43,268 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1820811995] [2019-12-07 14:22:43,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:22:43,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 14:22:43,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802980008] [2019-12-07 14:22:43,272 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 14:22:43,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 14:22:43,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 14:22:43,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 14:22:43,282 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2019-12-07 14:22:43,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:22:43,297 INFO L93 Difference]: Finished difference Result 74 states and 118 transitions. [2019-12-07 14:22:43,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 14:22:43,298 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-12-07 14:22:43,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:22:43,306 INFO L225 Difference]: With dead ends: 74 [2019-12-07 14:22:43,306 INFO L226 Difference]: Without dead ends: 35 [2019-12-07 14:22:43,309 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 14:22:43,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-12-07 14:22:43,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-12-07 14:22:43,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-12-07 14:22:43,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 50 transitions. [2019-12-07 14:22:43,333 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 50 transitions. Word has length 11 [2019-12-07 14:22:43,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:22:43,334 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 50 transitions. [2019-12-07 14:22:43,334 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 14:22:43,334 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 50 transitions. [2019-12-07 14:22:43,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 14:22:43,335 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:22:43,335 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:22:43,536 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 14:22:43,536 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:22:43,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:43,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1310108990, now seen corresponding path program 1 times [2019-12-07 14:22:43,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 14:22:43,541 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [144097266] [2019-12-07 14:22:43,542 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 14:22:43,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:22:43,643 INFO L264 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 14:22:43,645 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:22:43,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:22:43,702 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:22:43,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:22:43,750 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [144097266] [2019-12-07 14:22:43,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:22:43,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-07 14:22:43,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329643218] [2019-12-07 14:22:43,752 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 14:22:43,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 14:22:43,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 14:22:43,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 14:22:43,752 INFO L87 Difference]: Start difference. First operand 35 states and 50 transitions. Second operand 8 states. [2019-12-07 14:22:44,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:22:44,041 INFO L93 Difference]: Finished difference Result 59 states and 74 transitions. [2019-12-07 14:22:44,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 14:22:44,042 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2019-12-07 14:22:44,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:22:44,042 INFO L225 Difference]: With dead ends: 59 [2019-12-07 14:22:44,043 INFO L226 Difference]: Without dead ends: 34 [2019-12-07 14:22:44,044 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-12-07 14:22:44,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-07 14:22:44,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 22. [2019-12-07 14:22:44,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-07 14:22:44,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2019-12-07 14:22:44,049 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 12 [2019-12-07 14:22:44,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:22:44,050 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2019-12-07 14:22:44,050 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 14:22:44,050 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2019-12-07 14:22:44,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 14:22:44,051 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:22:44,051 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:22:44,252 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 14:22:44,253 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:22:44,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:44,254 INFO L82 PathProgramCache]: Analyzing trace with hash -649381144, now seen corresponding path program 1 times [2019-12-07 14:22:44,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 14:22:44,257 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [314385143] [2019-12-07 14:22:44,257 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 14:22:44,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:22:44,394 INFO L264 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 14:22:44,396 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:22:44,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:22:44,444 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:22:45,177 WARN L192 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2019-12-07 14:22:45,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:22:45,388 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [314385143] [2019-12-07 14:22:45,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:22:45,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-12-07 14:22:45,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346834430] [2019-12-07 14:22:45,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 14:22:45,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 14:22:45,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 14:22:45,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 14:22:45,390 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 6 states. [2019-12-07 14:22:45,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:22:45,751 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2019-12-07 14:22:45,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:22:45,758 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-12-07 14:22:45,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:22:45,759 INFO L225 Difference]: With dead ends: 34 [2019-12-07 14:22:45,759 INFO L226 Difference]: Without dead ends: 22 [2019-12-07 14:22:45,759 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 14:22:45,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-07 14:22:45,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-07 14:22:45,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-07 14:22:45,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2019-12-07 14:22:45,762 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 15 [2019-12-07 14:22:45,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:22:45,763 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2019-12-07 14:22:45,763 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 14:22:45,763 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2019-12-07 14:22:45,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 14:22:45,763 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:22:45,763 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:22:45,964 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 14:22:45,965 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:22:45,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:45,966 INFO L82 PathProgramCache]: Analyzing trace with hash 461150674, now seen corresponding path program 1 times [2019-12-07 14:22:45,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 14:22:45,968 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1700589616] [2019-12-07 14:22:45,969 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 14:22:46,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:46,276 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-07 14:22:46,276 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 14:22:46,477 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 14:22:46,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 02:22:46 BoogieIcfgContainer [2019-12-07 14:22:46,533 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 14:22:46,534 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:22:46,534 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:22:46,534 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:22:46,534 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:22:43" (3/4) ... [2019-12-07 14:22:46,536 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 14:22:46,575 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d52868bb-b000-4fa6-866d-7fe0d8107bd7/bin/uautomizer/witness.graphml [2019-12-07 14:22:46,575 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:22:46,576 INFO L168 Benchmark]: Toolchain (without parser) took 4628.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 951.0 MB in the beginning and 952.9 MB in the end (delta: -1.9 MB). Peak memory consumption was 104.0 MB. Max. memory is 11.5 GB. [2019-12-07 14:22:46,576 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:22:46,577 INFO L168 Benchmark]: CACSL2BoogieTranslator took 173.30 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 934.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-12-07 14:22:46,577 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 934.9 MB in the beginning and 1.1 GB in the end (delta: -158.5 MB). Peak memory consumption was 10.2 MB. Max. memory is 11.5 GB. [2019-12-07 14:22:46,577 INFO L168 Benchmark]: Boogie Preprocessor took 23.76 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:22:46,578 INFO L168 Benchmark]: RCFGBuilder took 932.67 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: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2019-12-07 14:22:46,578 INFO L168 Benchmark]: TraceAbstraction took 3394.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 959.7 MB in the end (delta: 107.2 MB). Peak memory consumption was 107.2 MB. Max. memory is 11.5 GB. [2019-12-07 14:22:46,578 INFO L168 Benchmark]: Witness Printer took 41.48 ms. Allocated memory is still 1.1 GB. Free memory was 959.7 MB in the beginning and 952.9 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 14:22:46,580 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 173.30 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 934.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 58.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 934.9 MB in the beginning and 1.1 GB in the end (delta: -158.5 MB). Peak memory consumption was 10.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.76 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 932.67 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: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3394.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 959.7 MB in the end (delta: 107.2 MB). Peak memory consumption was 107.2 MB. Max. memory is 11.5 GB. * Witness Printer took 41.48 ms. Allocated memory is still 1.1 GB. Free memory was 959.7 MB in the beginning and 952.9 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 103]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] static const double huge_floor = 1.0e300; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L98] double x = -0.0; [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L26] COND TRUE j0 < 20 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L27] COND TRUE j0 < 0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L28] COND TRUE huge_floor + x > 0.0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L29] COND FALSE !(i0 >= 0) VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L31] COND TRUE ((i0 & 0x7fffffff) | i1) != 0 [L32] i0 = 0xbff00000 [L33] i1 = 0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L71] ieee_double_shape_type iw_u; [L72] iw_u.parts.msw = (i0) [L73] iw_u.parts.lsw = (i1) [L74] EXPR iw_u.value [L74] (x) = iw_u.value [L76] return x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L99] double res = floor_double(x); [L102] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L102] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L103] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Result: UNSAFE, OverallTime: 3.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 87 SDtfs, 123 SDslu, 47 SDs, 0 SdLazy, 27 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 70 ConstructedInterpolants, 5 QuantifiedInterpolants, 3734 SizeOfPredicates, 11 NumberOfNonLiveVariables, 102 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...