./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1231b.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_fce99f58-516e-4555-9358-aadc99932faf/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_fce99f58-516e-4555-9358-aadc99932faf/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fce99f58-516e-4555-9358-aadc99932faf/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fce99f58-516e-4555-9358-aadc99932faf/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1231b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fce99f58-516e-4555-9358-aadc99932faf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fce99f58-516e-4555-9358-aadc99932faf/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 c714d208cb0b1f96f572e8a6108248eb76c73a94 ............................................................................................................................................................................................................................................................................................................................................................... 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_fce99f58-516e-4555-9358-aadc99932faf/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_fce99f58-516e-4555-9358-aadc99932faf/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fce99f58-516e-4555-9358-aadc99932faf/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fce99f58-516e-4555-9358-aadc99932faf/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1231b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fce99f58-516e-4555-9358-aadc99932faf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fce99f58-516e-4555-9358-aadc99932faf/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 c714d208cb0b1f96f572e8a6108248eb76c73a94 ................................................................................................................................................................................................................................................................................................................................................ 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 18:26:53,647 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:26:53,648 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:26:53,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:26:53,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:26:53,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:26:53,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:26:53,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:26:53,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:26:53,663 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:26:53,664 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:26:53,665 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:26:53,665 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:26:53,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:26:53,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:26:53,668 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:26:53,669 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:26:53,670 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:26:53,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:26:53,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:26:53,674 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:26:53,675 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:26:53,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:26:53,677 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:26:53,679 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:26:53,680 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:26:53,680 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:26:53,680 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:26:53,681 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:26:53,682 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:26:53,682 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:26:53,682 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:26:53,683 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:26:53,683 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:26:53,684 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:26:53,684 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:26:53,685 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:26:53,685 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:26:53,685 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:26:53,686 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:26:53,686 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:26:53,687 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fce99f58-516e-4555-9358-aadc99932faf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 18:26:53,699 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:26:53,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:26:53,700 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:26:53,700 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:26:53,700 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:26:53,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:26:53,700 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:26:53,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:26:53,701 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:26:53,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:26:53,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:26:53,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:26:53,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:26:53,701 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:26:53,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:26:53,702 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:26:53,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:26:53,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:26:53,702 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:26:53,702 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:26:53,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:26:53,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:26:53,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:26:53,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:26:53,703 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:26:53,703 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:26:53,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:26:53,703 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:26:53,703 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:26:53,703 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_fce99f58-516e-4555-9358-aadc99932faf/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 -> c714d208cb0b1f96f572e8a6108248eb76c73a94 [2019-12-07 18:26:53,812 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:26:53,820 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:26:53,822 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:26:53,823 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:26:53,824 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:26:53,824 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fce99f58-516e-4555-9358-aadc99932faf/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1231b.c [2019-12-07 18:26:53,862 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fce99f58-516e-4555-9358-aadc99932faf/bin/uautomizer/data/aac786005/9e20ffaa86a24ddd933c643adcade286/FLAGd3f16b8ae [2019-12-07 18:26:54,217 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:26:54,217 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fce99f58-516e-4555-9358-aadc99932faf/sv-benchmarks/c/float-newlib/double_req_bl_1231b.c [2019-12-07 18:26:54,222 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fce99f58-516e-4555-9358-aadc99932faf/bin/uautomizer/data/aac786005/9e20ffaa86a24ddd933c643adcade286/FLAGd3f16b8ae [2019-12-07 18:26:54,232 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fce99f58-516e-4555-9358-aadc99932faf/bin/uautomizer/data/aac786005/9e20ffaa86a24ddd933c643adcade286 [2019-12-07 18:26:54,234 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:26:54,235 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:26:54,236 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:26:54,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:26:54,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:26:54,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:26:54" (1/1) ... [2019-12-07 18:26:54,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17df66d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:54, skipping insertion in model container [2019-12-07 18:26:54,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:26:54" (1/1) ... [2019-12-07 18:26:54,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:26:54,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:26:54,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:26:54,412 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:26:54,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:26:54,442 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:26:54,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:54 WrapperNode [2019-12-07 18:26:54,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:26:54,443 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:26:54,443 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:26:54,443 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:26:54,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:54" (1/1) ... [2019-12-07 18:26:54,455 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:54" (1/1) ... [2019-12-07 18:26:54,471 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:26:54,471 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:26:54,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:26:54,471 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:26:54,477 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:54" (1/1) ... [2019-12-07 18:26:54,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:54" (1/1) ... [2019-12-07 18:26:54,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:54" (1/1) ... [2019-12-07 18:26:54,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:54" (1/1) ... [2019-12-07 18:26:54,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:54" (1/1) ... [2019-12-07 18:26:54,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:54" (1/1) ... [2019-12-07 18:26:54,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:54" (1/1) ... [2019-12-07 18:26:54,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:26:54,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:26:54,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:26:54,491 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:26:54,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fce99f58-516e-4555-9358-aadc99932faf/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 18:26:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:26:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 18:26:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:26:54,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:26:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 18:26:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:26:54,710 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:26:54,710 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-12-07 18:26:54,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:26:54 BoogieIcfgContainer [2019-12-07 18:26:54,711 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:26:54,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:26:54,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:26:54,714 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:26:54,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:26:54" (1/3) ... [2019-12-07 18:26:54,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a296e4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:26:54, skipping insertion in model container [2019-12-07 18:26:54,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:54" (2/3) ... [2019-12-07 18:26:54,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a296e4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:26:54, skipping insertion in model container [2019-12-07 18:26:54,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:26:54" (3/3) ... [2019-12-07 18:26:54,716 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1231b.c [2019-12-07 18:26:54,722 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:26:54,726 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 18:26:54,733 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 18:26:54,748 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:26:54,748 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:26:54,748 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:26:54,748 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:26:54,748 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:26:54,749 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:26:54,749 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:26:54,749 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:26:54,759 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-12-07 18:26:54,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 18:26:54,763 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:26:54,764 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:26:54,764 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:26:54,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:26:54,767 INFO L82 PathProgramCache]: Analyzing trace with hash -124750094, now seen corresponding path program 1 times [2019-12-07 18:26:54,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:26:54,773 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736723604] [2019-12-07 18:26:54,773 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:26:54,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:26:54,852 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 18:26:54,852 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736723604] [2019-12-07 18:26:54,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:26:54,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:26:54,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518375068] [2019-12-07 18:26:54,856 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:26:54,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:26:54,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:26:54,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:26:54,866 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2019-12-07 18:26:54,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:26:54,878 INFO L93 Difference]: Finished difference Result 56 states and 87 transitions. [2019-12-07 18:26:54,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:26:54,879 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-12-07 18:26:54,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:26:54,886 INFO L225 Difference]: With dead ends: 56 [2019-12-07 18:26:54,886 INFO L226 Difference]: Without dead ends: 26 [2019-12-07 18:26:54,888 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 18:26:54,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-12-07 18:26:54,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-12-07 18:26:54,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-07 18:26:54,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2019-12-07 18:26:54,910 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 11 [2019-12-07 18:26:54,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:26:54,911 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2019-12-07 18:26:54,911 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:26:54,911 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2019-12-07 18:26:54,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 18:26:54,911 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:26:54,911 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:26:54,911 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:26:54,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:26:54,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1352831344, now seen corresponding path program 1 times [2019-12-07 18:26:54,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:26:54,912 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731721729] [2019-12-07 18:26:54,912 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:26:54,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:26:54,961 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 18:26:54,961 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731721729] [2019-12-07 18:26:54,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:26:54,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:26:54,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527189138] [2019-12-07 18:26:54,963 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:26:54,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:26:54,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:26:54,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:26:54,963 INFO L87 Difference]: Start difference. First operand 26 states and 36 transitions. Second operand 4 states. [2019-12-07 18:26:55,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:26:55,002 INFO L93 Difference]: Finished difference Result 40 states and 51 transitions. [2019-12-07 18:26:55,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:26:55,002 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-12-07 18:26:55,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:26:55,003 INFO L225 Difference]: With dead ends: 40 [2019-12-07 18:26:55,003 INFO L226 Difference]: Without dead ends: 36 [2019-12-07 18:26:55,004 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:26:55,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-07 18:26:55,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2019-12-07 18:26:55,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-07 18:26:55,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 38 transitions. [2019-12-07 18:26:55,010 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 38 transitions. Word has length 12 [2019-12-07 18:26:55,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:26:55,010 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 38 transitions. [2019-12-07 18:26:55,010 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:26:55,010 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2019-12-07 18:26:55,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 18:26:55,011 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:26:55,011 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:26:55,011 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:26:55,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:26:55,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1045511114, now seen corresponding path program 1 times [2019-12-07 18:26:55,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:26:55,012 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916729552] [2019-12-07 18:26:55,012 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:26:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:26:55,051 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 18:26:55,052 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916729552] [2019-12-07 18:26:55,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:26:55,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:26:55,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058214954] [2019-12-07 18:26:55,052 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:26:55,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:26:55,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:26:55,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:26:55,053 INFO L87 Difference]: Start difference. First operand 28 states and 38 transitions. Second operand 4 states. [2019-12-07 18:26:55,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:26:55,086 INFO L93 Difference]: Finished difference Result 42 states and 53 transitions. [2019-12-07 18:26:55,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:26:55,086 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-12-07 18:26:55,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:26:55,087 INFO L225 Difference]: With dead ends: 42 [2019-12-07 18:26:55,087 INFO L226 Difference]: Without dead ends: 38 [2019-12-07 18:26:55,088 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:26:55,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-12-07 18:26:55,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 28. [2019-12-07 18:26:55,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-07 18:26:55,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 38 transitions. [2019-12-07 18:26:55,091 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 38 transitions. Word has length 15 [2019-12-07 18:26:55,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:26:55,092 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 38 transitions. [2019-12-07 18:26:55,092 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:26:55,092 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2019-12-07 18:26:55,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 18:26:55,092 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:26:55,092 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:26:55,093 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:26:55,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:26:55,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1102769416, now seen corresponding path program 1 times [2019-12-07 18:26:55,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:26:55,093 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894530589] [2019-12-07 18:26:55,093 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:26:55,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:26:55,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:26:55,140 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:26:55,140 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 18:26:55,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:26:55 BoogieIcfgContainer [2019-12-07 18:26:55,158 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:26:55,159 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:26:55,159 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:26:55,159 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:26:55,159 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:26:54" (3/4) ... [2019-12-07 18:26:55,162 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 18:26:55,162 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:26:55,163 INFO L168 Benchmark]: Toolchain (without parser) took 927.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 937.9 MB in the beginning and 1.0 GB in the end (delta: -93.2 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. [2019-12-07 18:26:55,164 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:26:55,164 INFO L168 Benchmark]: CACSL2BoogieTranslator took 207.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -175.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:26:55,164 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.83 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 18:26:55,165 INFO L168 Benchmark]: Boogie Preprocessor took 19.00 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 18:26:55,165 INFO L168 Benchmark]: RCFGBuilder took 220.85 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: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:26:55,166 INFO L168 Benchmark]: TraceAbstraction took 446.57 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: 55.0 MB). Peak memory consumption was 55.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:26:55,166 INFO L168 Benchmark]: Witness Printer took 3.08 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 18:26:55,168 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 207.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -175.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.83 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.00 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. * RCFGBuilder took 220.85 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: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 446.57 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: 55.0 MB). Peak memory consumption was 55.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.08 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: 68]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 67, overapproximation of someBinaryArithmeticDOUBLEoperation at line 61. Possible FailurePath: [L60] double x = __VERIFIER_nondet_double(); [L61] double y = 0.0 / 0.0; [L16] return x != x; [L62] COND TRUE !isnan_double(x) [L18] __uint32_t msw, lsw; [L21] ieee_double_shape_type ew_u; [L22] ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] (msw) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] (lsw) = ew_u.parts.lsw [L27-L28] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L30-L31] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L33-L34] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L37-L38] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L41] return 0; [L45] COND TRUE __fpclassify_double(x) == 0 [L46] return y; [L64] double res = fmin_double(x, y); [L67] COND TRUE res != x [L68] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 113 SDtfs, 20 SDslu, 112 SDs, 0 SdLazy, 30 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 517 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 18:26:56,615 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2019-12-07 18:26:56,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:26:56,625 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:26:56,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:26:56,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:26:56,628 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:26:56,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:26:56,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:26:56,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:26:56,631 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:26:56,631 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:26:56,632 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:26:56,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:26:56,633 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:26:56,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:26:56,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:26:56,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:26:56,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:26:56,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:26:56,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:26:56,640 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:26:56,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:26:56,642 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:26:56,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:26:56,643 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:26:56,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:26:56,644 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:26:56,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:26:56,645 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:26:56,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:26:56,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:26:56,646 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:26:56,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:26:56,647 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:26:56,647 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:26:56,647 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:26:56,648 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:26:56,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:26:56,649 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fce99f58-516e-4555-9358-aadc99932faf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 18:26:56,659 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:26:56,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:26:56,660 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:26:56,660 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:26:56,660 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:26:56,660 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:26:56,660 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:26:56,660 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:26:56,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:26:56,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:26:56,661 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:26:56,661 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:26:56,661 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 18:26:56,661 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 18:26:56,661 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:26:56,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:26:56,662 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:26:56,662 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:26:56,662 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:26:56,662 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:26:56,662 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:26:56,662 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:26:56,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:26:56,663 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:26:56,663 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:26:56,663 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:26:56,663 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 18:26:56,663 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 18:26:56,663 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:26:56,664 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:26:56,664 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 18:26:56,664 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_fce99f58-516e-4555-9358-aadc99932faf/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 -> c714d208cb0b1f96f572e8a6108248eb76c73a94 [2019-12-07 18:26:56,826 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:26:56,836 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:26:56,839 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:26:56,840 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:26:56,840 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:26:56,841 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fce99f58-516e-4555-9358-aadc99932faf/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1231b.c [2019-12-07 18:26:56,883 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fce99f58-516e-4555-9358-aadc99932faf/bin/uautomizer/data/b3f80d795/b50410d9d2874dfbbac17992b3c978f0/FLAG00f8c35a1 [2019-12-07 18:26:57,204 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:26:57,205 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fce99f58-516e-4555-9358-aadc99932faf/sv-benchmarks/c/float-newlib/double_req_bl_1231b.c [2019-12-07 18:26:57,209 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fce99f58-516e-4555-9358-aadc99932faf/bin/uautomizer/data/b3f80d795/b50410d9d2874dfbbac17992b3c978f0/FLAG00f8c35a1 [2019-12-07 18:26:57,218 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fce99f58-516e-4555-9358-aadc99932faf/bin/uautomizer/data/b3f80d795/b50410d9d2874dfbbac17992b3c978f0 [2019-12-07 18:26:57,220 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:26:57,221 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:26:57,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:26:57,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:26:57,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:26:57,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:26:57" (1/1) ... [2019-12-07 18:26:57,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31403813 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:57, skipping insertion in model container [2019-12-07 18:26:57,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:26:57" (1/1) ... [2019-12-07 18:26:57,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:26:57,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:26:57,351 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:26:57,355 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:26:57,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:26:57,391 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:26:57,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:57 WrapperNode [2019-12-07 18:26:57,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:26:57,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:26:57,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:26:57,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:26:57,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:57" (1/1) ... [2019-12-07 18:26:57,435 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:57" (1/1) ... [2019-12-07 18:26:57,451 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:26:57,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:26:57,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:26:57,451 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:26:57,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:57" (1/1) ... [2019-12-07 18:26:57,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:57" (1/1) ... [2019-12-07 18:26:57,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:57" (1/1) ... [2019-12-07 18:26:57,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:57" (1/1) ... [2019-12-07 18:26:57,467 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:57" (1/1) ... [2019-12-07 18:26:57,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:57" (1/1) ... [2019-12-07 18:26:57,472 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:57" (1/1) ... [2019-12-07 18:26:57,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:26:57,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:26:57,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:26:57,474 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:26:57,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fce99f58-516e-4555-9358-aadc99932faf/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 18:26:57,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 18:26:57,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:26:57,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 18:26:57,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:26:57,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:26:57,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:26:57,752 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:26:57,752 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-12-07 18:26:57,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:26:57 BoogieIcfgContainer [2019-12-07 18:26:57,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:26:57,754 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:26:57,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:26:57,756 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:26:57,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:26:57" (1/3) ... [2019-12-07 18:26:57,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@738ca7ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:26:57, skipping insertion in model container [2019-12-07 18:26:57,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:57" (2/3) ... [2019-12-07 18:26:57,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@738ca7ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:26:57, skipping insertion in model container [2019-12-07 18:26:57,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:26:57" (3/3) ... [2019-12-07 18:26:57,758 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1231b.c [2019-12-07 18:26:57,764 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:26:57,769 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 18:26:57,776 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 18:26:57,790 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:26:57,791 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:26:57,791 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:26:57,791 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:26:57,791 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:26:57,791 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:26:57,791 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:26:57,791 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:26:57,800 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-12-07 18:26:57,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 18:26:57,804 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:26:57,804 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:26:57,804 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:26:57,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:26:57,808 INFO L82 PathProgramCache]: Analyzing trace with hash -124750094, now seen corresponding path program 1 times [2019-12-07 18:26:57,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:26:57,815 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [208737427] [2019-12-07 18:26:57,815 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fce99f58-516e-4555-9358-aadc99932faf/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 18:26:57,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:26:57,886 INFO L264 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 18:26:57,890 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:26:57,899 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 18:26:57,899 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:26:57,901 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 18:26:57,902 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [208737427] [2019-12-07 18:26:57,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:26:57,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 18:26:57,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399290332] [2019-12-07 18:26:57,906 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:26:57,906 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:26:57,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:26:57,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:26:57,916 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2019-12-07 18:26:57,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:26:57,929 INFO L93 Difference]: Finished difference Result 56 states and 87 transitions. [2019-12-07 18:26:57,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:26:57,930 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-12-07 18:26:57,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:26:57,936 INFO L225 Difference]: With dead ends: 56 [2019-12-07 18:26:57,936 INFO L226 Difference]: Without dead ends: 26 [2019-12-07 18:26:57,938 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 18:26:57,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-12-07 18:26:57,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-12-07 18:26:57,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-07 18:26:57,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2019-12-07 18:26:57,962 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 11 [2019-12-07 18:26:57,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:26:57,962 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2019-12-07 18:26:57,962 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:26:57,963 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2019-12-07 18:26:57,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 18:26:57,963 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:26:57,963 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:26:58,164 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 18:26:58,164 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:26:58,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:26:58,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1352831344, now seen corresponding path program 1 times [2019-12-07 18:26:58,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:26:58,167 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2033345714] [2019-12-07 18:26:58,167 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fce99f58-516e-4555-9358-aadc99932faf/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 18:26:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:26:58,340 INFO L264 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 18:26:58,341 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:26:58,361 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 18:26:58,361 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:26:58,375 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 18:26:58,376 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2033345714] [2019-12-07 18:26:58,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:26:58,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 18:26:58,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690531893] [2019-12-07 18:26:58,377 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 18:26:58,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:26:58,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:26:58,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:26:58,378 INFO L87 Difference]: Start difference. First operand 26 states and 36 transitions. Second operand 6 states. [2019-12-07 18:26:58,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:26:58,441 INFO L93 Difference]: Finished difference Result 50 states and 63 transitions. [2019-12-07 18:26:58,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:26:58,442 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2019-12-07 18:26:58,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:26:58,443 INFO L225 Difference]: With dead ends: 50 [2019-12-07 18:26:58,443 INFO L226 Difference]: Without dead ends: 46 [2019-12-07 18:26:58,444 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:26:58,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-12-07 18:26:58,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 28. [2019-12-07 18:26:58,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-07 18:26:58,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 38 transitions. [2019-12-07 18:26:58,448 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 38 transitions. Word has length 12 [2019-12-07 18:26:58,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:26:58,448 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 38 transitions. [2019-12-07 18:26:58,448 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 18:26:58,449 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2019-12-07 18:26:58,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 18:26:58,449 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:26:58,449 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:26:58,650 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 18:26:58,651 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:26:58,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:26:58,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1102769416, now seen corresponding path program 1 times [2019-12-07 18:26:58,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:26:58,654 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [252877737] [2019-12-07 18:26:58,655 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fce99f58-516e-4555-9358-aadc99932faf/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 18:26:58,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:26:58,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:26:58,880 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-07 18:26:58,880 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 18:26:59,081 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 18:26:59,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:26:59 BoogieIcfgContainer [2019-12-07 18:26:59,116 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:26:59,117 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:26:59,117 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:26:59,117 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:26:59,117 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:26:57" (3/4) ... [2019-12-07 18:26:59,119 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 18:26:59,150 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fce99f58-516e-4555-9358-aadc99932faf/bin/uautomizer/witness.graphml [2019-12-07 18:26:59,151 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:26:59,152 INFO L168 Benchmark]: Toolchain (without parser) took 1930.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 952.4 MB in the beginning and 993.0 MB in the end (delta: -40.6 MB). Peak memory consumption was 81.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:26:59,152 INFO L168 Benchmark]: CDTParser took 0.18 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 18:26:59,153 INFO L168 Benchmark]: CACSL2BoogieTranslator took 170.10 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 936.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:26:59,153 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -174.0 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:26:59,153 INFO L168 Benchmark]: Boogie Preprocessor took 22.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:26:59,154 INFO L168 Benchmark]: RCFGBuilder took 278.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:26:59,154 INFO L168 Benchmark]: TraceAbstraction took 1362.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1000.0 MB in the end (delta: 77.8 MB). Peak memory consumption was 77.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:26:59,154 INFO L168 Benchmark]: Witness Printer took 34.00 ms. Allocated memory is still 1.2 GB. Free memory was 1000.0 MB in the beginning and 993.0 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:26:59,156 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 170.10 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 936.3 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 58.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -174.0 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 278.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1362.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1000.0 MB in the end (delta: 77.8 MB). Peak memory consumption was 77.8 MB. Max. memory is 11.5 GB. * Witness Printer took 34.00 ms. Allocated memory is still 1.2 GB. Free memory was 1000.0 MB in the beginning and 993.0 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 68]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L60] double x = __VERIFIER_nondet_double(); [L61] double y = 0.0 / 0.0; [L16] return x != x; [L62] COND TRUE !isnan_double(x) [L18] __uint32_t msw, lsw; [L21] ieee_double_shape_type ew_u; [L22] ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] (msw) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] (lsw) = ew_u.parts.lsw [L27-L28] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L30-L31] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L33-L34] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L37-L38] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L41] return 0; [L45] COND TRUE __fpclassify_double(x) == 0 [L46] return y; [L64] double res = fmin_double(x, y); [L67] COND TRUE res != x [L68] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Result: UNSAFE, OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 77 SDtfs, 30 SDslu, 64 SDs, 0 SdLazy, 23 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 18 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 574 SizeOfPredicates, 1 NumberOfNonLiveVariables, 71 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...