./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1210.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1210.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/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 4632d05eeeec8083fb0c38c2d70eb822a2624ecb ............................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1210.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/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 4632d05eeeec8083fb0c38c2d70eb822a2624ecb .................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-cad4683 [2019-10-22 08:54:47,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:54:47,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:54:47,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:54:47,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:54:47,893 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:54:47,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:54:47,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:54:47,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:54:47,898 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:54:47,898 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:54:47,899 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:54:47,900 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:54:47,901 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:54:47,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:54:47,902 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:54:47,903 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:54:47,904 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:54:47,905 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:54:47,907 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:54:47,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:54:47,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:54:47,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:54:47,911 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:54:47,914 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:54:47,914 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:54:47,914 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:54:47,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:54:47,916 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:54:47,917 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:54:47,918 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:54:47,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:54:47,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:54:47,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:54:47,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:54:47,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:54:47,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:54:47,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:54:47,922 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:54:47,923 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:54:47,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:54:47,924 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:54:47,935 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:54:47,935 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:54:47,936 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:54:47,936 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:54:47,936 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:54:47,937 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:54:47,937 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:54:47,937 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:54:47,937 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:54:47,937 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:54:47,937 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:54:47,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:54:47,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:54:47,938 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:54:47,938 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:54:47,938 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:54:47,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:54:47,939 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:54:47,939 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:54:47,939 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:54:47,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:54:47,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:54:47,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:54:47,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:54:47,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:54:47,940 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:54:47,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:54:47,940 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:54:47,940 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/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/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 -> 4632d05eeeec8083fb0c38c2d70eb822a2624ecb [2019-10-22 08:54:47,972 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:54:47,984 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:54:47,987 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:54:47,988 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:54:47,988 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:54:47,989 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2019-10-22 08:54:48,036 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/bin/uautomizer/data/d2b895fe8/b50653cb1c3c4e259057985f389c3c2d/FLAG7e6568918 [2019-10-22 08:54:48,423 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:54:48,424 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2019-10-22 08:54:48,430 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/bin/uautomizer/data/d2b895fe8/b50653cb1c3c4e259057985f389c3c2d/FLAG7e6568918 [2019-10-22 08:54:48,441 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/bin/uautomizer/data/d2b895fe8/b50653cb1c3c4e259057985f389c3c2d [2019-10-22 08:54:48,443 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:54:48,444 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:54:48,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:48,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:54:48,448 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:54:48,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:48" (1/1) ... [2019-10-22 08:54:48,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@717ba0f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:48, skipping insertion in model container [2019-10-22 08:54:48,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:48" (1/1) ... [2019-10-22 08:54:48,457 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:54:48,476 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:54:48,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:48,754 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:54:48,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:48,811 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:54:48,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:48 WrapperNode [2019-10-22 08:54:48,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:48,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:48,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:54:48,812 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:54:48,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:48" (1/1) ... [2019-10-22 08:54:48,832 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:48" (1/1) ... [2019-10-22 08:54:48,866 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:48,867 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:54:48,867 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:54:48,867 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:54:48,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:48" (1/1) ... [2019-10-22 08:54:48,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:48" (1/1) ... [2019-10-22 08:54:48,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:48" (1/1) ... [2019-10-22 08:54:48,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:48" (1/1) ... [2019-10-22 08:54:48,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:48" (1/1) ... [2019-10-22 08:54:48,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:48" (1/1) ... [2019-10-22 08:54:48,926 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:48" (1/1) ... [2019-10-22 08:54:48,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:54:48,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:54:48,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:54:48,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:54:48,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/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 [2019-10-22 08:54:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-10-22 08:54:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:54:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-10-22 08:54:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:54:48,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:54:48,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:54:48,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:54:48,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:54:49,414 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:54:49,414 INFO L284 CfgBuilder]: Removed 30 assume(true) statements. [2019-10-22 08:54:49,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:49 BoogieIcfgContainer [2019-10-22 08:54:49,416 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:54:49,417 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:54:49,417 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:54:49,419 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:54:49,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:54:48" (1/3) ... [2019-10-22 08:54:49,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@347e6005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:49, skipping insertion in model container [2019-10-22 08:54:49,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:48" (2/3) ... [2019-10-22 08:54:49,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@347e6005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:49, skipping insertion in model container [2019-10-22 08:54:49,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:49" (3/3) ... [2019-10-22 08:54:49,423 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210.c [2019-10-22 08:54:49,436 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:54:49,443 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:54:49,453 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:54:49,474 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:54:49,474 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:54:49,475 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:54:49,475 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:54:49,475 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:54:49,475 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:54:49,475 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:54:49,475 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:54:49,488 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2019-10-22 08:54:49,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 08:54:49,494 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:49,495 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:49,496 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:49,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:49,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1560975081, now seen corresponding path program 1 times [2019-10-22 08:54:49,509 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:49,510 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754362410] [2019-10-22 08:54:49,510 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:49,510 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:49,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:49,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:49,606 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754362410] [2019-10-22 08:54:49,607 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:49,607 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:54:49,607 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162375014] [2019-10-22 08:54:49,611 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 08:54:49,611 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:49,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 08:54:49,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:54:49,625 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2019-10-22 08:54:49,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:49,642 INFO L93 Difference]: Finished difference Result 86 states and 138 transitions. [2019-10-22 08:54:49,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 08:54:49,644 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-10-22 08:54:49,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:49,654 INFO L225 Difference]: With dead ends: 86 [2019-10-22 08:54:49,654 INFO L226 Difference]: Without dead ends: 41 [2019-10-22 08:54:49,657 INFO L600 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 [2019-10-22 08:54:49,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-10-22 08:54:49,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-10-22 08:54:49,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-10-22 08:54:49,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2019-10-22 08:54:49,691 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 13 [2019-10-22 08:54:49,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:49,691 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2019-10-22 08:54:49,691 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 08:54:49,692 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2019-10-22 08:54:49,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 08:54:49,692 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:49,693 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:49,693 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:49,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:49,697 INFO L82 PathProgramCache]: Analyzing trace with hash -11965906, now seen corresponding path program 1 times [2019-10-22 08:54:49,697 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:49,697 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750628141] [2019-10-22 08:54:49,698 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:49,698 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:49,698 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:49,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:49,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:49,776 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750628141] [2019-10-22 08:54:49,777 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:49,777 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:54:49,777 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583687088] [2019-10-22 08:54:49,778 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:54:49,778 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:49,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:54:49,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:54:49,779 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 3 states. [2019-10-22 08:54:49,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:49,795 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2019-10-22 08:54:49,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:54:49,795 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-10-22 08:54:49,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:49,796 INFO L225 Difference]: With dead ends: 44 [2019-10-22 08:54:49,796 INFO L226 Difference]: Without dead ends: 41 [2019-10-22 08:54:49,797 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:54:49,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-10-22 08:54:49,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-10-22 08:54:49,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-10-22 08:54:49,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2019-10-22 08:54:49,801 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 15 [2019-10-22 08:54:49,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:49,802 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2019-10-22 08:54:49,802 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:54:49,802 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2019-10-22 08:54:49,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 08:54:49,803 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:49,803 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:49,803 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:49,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:49,803 INFO L82 PathProgramCache]: Analyzing trace with hash -371067880, now seen corresponding path program 1 times [2019-10-22 08:54:49,803 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:49,804 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622546041] [2019-10-22 08:54:49,804 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:49,804 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:49,804 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:49,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:49,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:49,942 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:54:49,945 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:54:49,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:54:49 BoogieIcfgContainer [2019-10-22 08:54:49,976 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:54:49,976 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:54:49,976 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:54:49,976 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:54:49,977 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:49" (3/4) ... [2019-10-22 08:54:49,980 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:54:49,980 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:54:49,982 INFO L168 Benchmark]: Toolchain (without parser) took 1537.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 943.2 MB in the beginning and 1.1 GB in the end (delta: -130.5 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:49,983 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:49,983 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 943.2 MB in the beginning and 1.2 GB in the end (delta: -207.9 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:49,984 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:49,984 INFO L168 Benchmark]: Boogie Preprocessor took 66.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:49,985 INFO L168 Benchmark]: RCFGBuilder took 482.70 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: 39.9 MB). Peak memory consumption was 39.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:49,985 INFO L168 Benchmark]: TraceAbstraction took 559.19 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:49,986 INFO L168 Benchmark]: Witness Printer took 4.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:49,989 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 366.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 943.2 MB in the beginning and 1.2 GB in the end (delta: -207.9 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 66.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 482.70 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: 39.9 MB). Peak memory consumption was 39.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 559.19 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15, overapproximation of someBinaryArithmeticDOUBLEoperation at line 116, overapproximation of bitwiseAnd at line 33. Possible FailurePath: [L17] static const double one_modf = 1.0; VAL [one_modf=1] [L116] double x = 0.0 / 0.0; [L117] double iptr; [L20] __int32_t i0, i1, j0; [L21] __uint32_t i; VAL [one_modf=1] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [one_modf=1] [L29] COND TRUE j0 < 20 VAL [one_modf=1] [L30] COND TRUE j0 < 0 VAL [one_modf=1] [L32] ieee_double_shape_type iw_u; [L33] iw_u.parts.msw = (i0 & 0x80000000) [L34] iw_u.parts.lsw = (0) [L35] EXPR iw_u.value [L35] (*iptr) = iw_u.value [L37] return x; VAL [one_modf=1] [L118] double res = modf_double(x, &iptr); [L121] EXPR \read(iptr) [L15] return x != x; VAL [one_modf=1] [L121] isnan_double(iptr) && !isnan_double(res) [L15] return x != x; VAL [one_modf=1] [L121] isnan_double(iptr) && !isnan_double(res) VAL [one_modf=1] [L121] COND TRUE isnan_double(iptr) && !isnan_double(res) [L122] __VERIFIER_error() VAL [one_modf=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 95 SDtfs, 0 SDslu, 40 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 354 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 08:54:51,969 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2019-10-22 08:54:52,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:54:52,001 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:54:52,002 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:54:52,003 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:54:52,003 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:54:52,003 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:54:52,004 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:54:52,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:54:52,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:54:52,005 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:54:52,006 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:54:52,006 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-10-22 08:54:52,017 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:54:52,017 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:54:52,018 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:54:52,018 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:54:52,019 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:54:52,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:54:52,019 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:54:52,019 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:54:52,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:54:52,019 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:54:52,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:54:52,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:54:52,020 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 08:54:52,020 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 08:54:52,020 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:54:52,020 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:54:52,020 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:54:52,020 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:54:52,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:54:52,024 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:54:52,024 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:54:52,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:54:52,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:54:52,025 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:54:52,025 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:54:52,025 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:54:52,025 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 08:54:52,026 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 08:54:52,026 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:54:52,026 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 08:54:52,026 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/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 -> 4632d05eeeec8083fb0c38c2d70eb822a2624ecb [2019-10-22 08:54:52,058 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:54:52,067 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:54:52,070 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:54:52,074 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:54:52,074 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:54:52,075 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2019-10-22 08:54:52,123 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/bin/uautomizer/data/28d68e01b/e1f4fe11024b41c0adef75c4998e7b5b/FLAG42fc75d47 [2019-10-22 08:54:52,487 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:54:52,488 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2019-10-22 08:54:52,494 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/bin/uautomizer/data/28d68e01b/e1f4fe11024b41c0adef75c4998e7b5b/FLAG42fc75d47 [2019-10-22 08:54:52,888 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/bin/uautomizer/data/28d68e01b/e1f4fe11024b41c0adef75c4998e7b5b [2019-10-22 08:54:52,890 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:54:52,891 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:54:52,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:52,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:54:52,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:54:52,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:52" (1/1) ... [2019-10-22 08:54:52,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64fff581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:52, skipping insertion in model container [2019-10-22 08:54:52,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:52" (1/1) ... [2019-10-22 08:54:52,904 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:54:52,921 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:54:53,089 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:53,112 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:54:53,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:53,232 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:54:53,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:53 WrapperNode [2019-10-22 08:54:53,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:53,234 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:53,234 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:54:53,234 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:54:53,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:53" (1/1) ... [2019-10-22 08:54:53,254 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:53" (1/1) ... [2019-10-22 08:54:53,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:53,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:54:53,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:54:53,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:54:53,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:53" (1/1) ... [2019-10-22 08:54:53,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:53" (1/1) ... [2019-10-22 08:54:53,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:53" (1/1) ... [2019-10-22 08:54:53,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:53" (1/1) ... [2019-10-22 08:54:53,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:53" (1/1) ... [2019-10-22 08:54:53,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:53" (1/1) ... [2019-10-22 08:54:53,315 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:53" (1/1) ... [2019-10-22 08:54:53,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:54:53,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:54:53,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:54:53,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:54:53,320 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/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 [2019-10-22 08:54:53,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-10-22 08:54:53,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 08:54:53,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-10-22 08:54:53,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:54:53,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:54:53,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:54:53,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 08:54:53,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:54:54,635 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:54:54,635 INFO L284 CfgBuilder]: Removed 30 assume(true) statements. [2019-10-22 08:54:54,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:54 BoogieIcfgContainer [2019-10-22 08:54:54,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:54:54,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:54:54,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:54:54,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:54:54,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:54:52" (1/3) ... [2019-10-22 08:54:54,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b6ed70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:54, skipping insertion in model container [2019-10-22 08:54:54,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:53" (2/3) ... [2019-10-22 08:54:54,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b6ed70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:54, skipping insertion in model container [2019-10-22 08:54:54,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:54" (3/3) ... [2019-10-22 08:54:54,646 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210.c [2019-10-22 08:54:54,656 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:54:54,665 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:54:54,676 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:54:54,698 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:54:54,698 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:54:54,699 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:54:54,699 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:54:54,699 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:54:54,699 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:54:54,699 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:54:54,699 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:54:54,711 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2019-10-22 08:54:54,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 08:54:54,716 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:54,716 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:54,718 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:54,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:54,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1560975081, now seen corresponding path program 1 times [2019-10-22 08:54:54,731 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:54:54,731 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1560430625] [2019-10-22 08:54:54,732 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/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 [2019-10-22 08:54:54,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:54,830 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 08:54:54,834 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:54:54,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:54,844 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 08:54:54,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:54,849 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1560430625] [2019-10-22 08:54:54,851 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:54,852 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 08:54:54,852 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109828785] [2019-10-22 08:54:54,856 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 08:54:54,856 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 08:54:54,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 08:54:54,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:54:54,870 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2019-10-22 08:54:54,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:54,890 INFO L93 Difference]: Finished difference Result 86 states and 138 transitions. [2019-10-22 08:54:54,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 08:54:54,892 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-10-22 08:54:54,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:54,904 INFO L225 Difference]: With dead ends: 86 [2019-10-22 08:54:54,910 INFO L226 Difference]: Without dead ends: 41 [2019-10-22 08:54:54,914 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:54:54,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-10-22 08:54:54,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-10-22 08:54:54,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-10-22 08:54:54,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2019-10-22 08:54:54,945 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 13 [2019-10-22 08:54:54,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:54,946 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2019-10-22 08:54:54,946 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 08:54:54,946 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2019-10-22 08:54:54,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 08:54:54,947 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:54,947 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:55,148 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 08:54:55,148 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:55,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:55,149 INFO L82 PathProgramCache]: Analyzing trace with hash -11965906, now seen corresponding path program 1 times [2019-10-22 08:54:55,150 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:54:55,150 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2105688958] [2019-10-22 08:54:55,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/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 [2019-10-22 08:54:55,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:55,255 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 08:54:55,258 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:54:55,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:55,338 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 08:54:55,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:55,442 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2105688958] [2019-10-22 08:54:55,442 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:55,443 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-10-22 08:54:55,443 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221416271] [2019-10-22 08:54:55,444 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:54:55,444 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 08:54:55,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:54:55,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:54:55,445 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 8 states. [2019-10-22 08:54:56,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:56,255 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2019-10-22 08:54:56,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:54:56,258 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-10-22 08:54:56,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:56,259 INFO L225 Difference]: With dead ends: 48 [2019-10-22 08:54:56,259 INFO L226 Difference]: Without dead ends: 19 [2019-10-22 08:54:56,260 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:54:56,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-10-22 08:54:56,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-10-22 08:54:56,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-22 08:54:56,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-10-22 08:54:56,264 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 15 [2019-10-22 08:54:56,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:56,264 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-10-22 08:54:56,264 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:54:56,266 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-10-22 08:54:56,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 08:54:56,267 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:56,267 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:56,468 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-10-22 08:54:56,468 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:56,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:56,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1834889353, now seen corresponding path program 1 times [2019-10-22 08:54:56,472 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:54:56,472 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [578340924] [2019-10-22 08:54:56,472 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/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 [2019-10-22 08:54:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:56,777 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:54:56,778 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:54:56,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:56,792 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 08:54:56,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:56,794 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [578340924] [2019-10-22 08:54:56,794 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:56,794 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 08:54:56,794 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585909298] [2019-10-22 08:54:56,795 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:54:56,795 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 08:54:56,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:54:56,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:54:56,796 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 3 states. [2019-10-22 08:54:56,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:56,812 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2019-10-22 08:54:56,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:54:56,813 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-10-22 08:54:56,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:56,813 INFO L225 Difference]: With dead ends: 22 [2019-10-22 08:54:56,813 INFO L226 Difference]: Without dead ends: 19 [2019-10-22 08:54:56,814 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:54:56,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-10-22 08:54:56,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-10-22 08:54:56,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-22 08:54:56,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2019-10-22 08:54:56,818 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 17 [2019-10-22 08:54:56,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:56,818 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2019-10-22 08:54:56,818 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:54:56,818 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2019-10-22 08:54:56,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 08:54:56,819 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:56,819 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:57,033 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-10-22 08:54:57,033 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:57,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:57,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1046870301, now seen corresponding path program 1 times [2019-10-22 08:54:57,034 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:54:57,035 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1821261344] [2019-10-22 08:54:57,035 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/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 [2019-10-22 08:54:57,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:57,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:57,984 INFO L168 tionRefinementEngine]: Strategy WOLF found a feasible trace [2019-10-22 08:54:57,989 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:54:58,189 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-10-22 08:54:58,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:54:58 BoogieIcfgContainer [2019-10-22 08:54:58,240 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:54:58,240 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:54:58,240 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:54:58,240 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:54:58,241 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:54" (3/4) ... [2019-10-22 08:54:58,243 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 08:54:58,290 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e1b61767-f989-4283-b9ec-253bdb294c2c/bin/uautomizer/witness.graphml [2019-10-22 08:54:58,291 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:54:58,292 INFO L168 Benchmark]: Toolchain (without parser) took 5400.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 951.0 MB in the beginning and 958.7 MB in the end (delta: -7.8 MB). Peak memory consumption was 114.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:58,293 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:58,293 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -159.7 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:58,293 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:58,294 INFO L168 Benchmark]: Boogie Preprocessor took 40.55 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:58,294 INFO L168 Benchmark]: RCFGBuilder took 1317.41 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: 34.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:58,294 INFO L168 Benchmark]: TraceAbstraction took 3601.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 958.7 MB in the end (delta: 111.0 MB). Peak memory consumption was 111.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:58,295 INFO L168 Benchmark]: Witness Printer took 50.63 ms. Allocated memory is still 1.2 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:58,296 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 341.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -159.7 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.55 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1317.41 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: 34.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3601.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 958.7 MB in the end (delta: 111.0 MB). Peak memory consumption was 111.0 MB. Max. memory is 11.5 GB. * Witness Printer took 50.63 ms. Allocated memory is still 1.2 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 122]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] static const double one_modf = 1.0; VAL [one_modf=1.0] [L116] double x = 0.0 / 0.0; [L117] double iptr; [L20] __int32_t i0, i1, j0; [L21] __uint32_t i; VAL [one_modf=1.0] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [one_modf=1.0] [L29] COND FALSE !(j0 < 20) VAL [one_modf=1.0] [L65] COND TRUE j0 > 51 [L66] __uint32_t high; [L67] *iptr = x * one_modf VAL [one_modf=1.0] [L69] ieee_double_shape_type gh_u; [L70] gh_u.value = (x) [L71] EXPR gh_u.parts.msw [L71] (high) = gh_u.parts.msw [L74] ieee_double_shape_type iw_u; [L75] iw_u.parts.msw = (high & 0x80000000) [L76] iw_u.parts.lsw = (0) [L77] EXPR iw_u.value [L77] (x) = iw_u.value [L79] return x; VAL [one_modf=1.0] [L118] double res = modf_double(x, &iptr); [L121] EXPR \read(iptr) [L15] return x != x; VAL [one_modf=1.0] [L121] isnan_double(iptr) && !isnan_double(res) [L15] return x != x; VAL [one_modf=1.0] [L121] isnan_double(iptr) && !isnan_double(res) VAL [one_modf=1.0] [L121] COND TRUE isnan_double(iptr) && !isnan_double(res) [L122] __VERIFIER_error() VAL [one_modf=1.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 1 error locations. Result: UNSAFE, OverallTime: 3.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 82 SDtfs, 50 SDslu, 35 SDs, 0 SdLazy, 18 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 84 ConstructedInterpolants, 4 QuantifiedInterpolants, 2694 SizeOfPredicates, 6 NumberOfNonLiveVariables, 168 ConjunctsInSsa, 11 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...