./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0832.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_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0832.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/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 880ea7a6e3bf15e1c28bd78f5267ea1e88339658 ................................................................................................................................................................................................................................................................................................................... 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_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0832.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/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 880ea7a6e3bf15e1c28bd78f5267ea1e88339658 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:11:43,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:11:43,858 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:11:43,866 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:11:43,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:11:43,867 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:11:43,867 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:11:43,869 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:11:43,870 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:11:43,871 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:11:43,871 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:11:43,872 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:11:43,872 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:11:43,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:11:43,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:11:43,874 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:11:43,875 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:11:43,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:11:43,877 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:11:43,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:11:43,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:11:43,880 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:11:43,881 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:11:43,881 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:11:43,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:11:43,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:11:43,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:11:43,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:11:43,884 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:11:43,884 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:11:43,885 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:11:43,885 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:11:43,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:11:43,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:11:43,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:11:43,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:11:43,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:11:43,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:11:43,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:11:43,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:11:43,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:11:43,888 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 18:11:43,898 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:11:43,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:11:43,899 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:11:43,899 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:11:43,899 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:11:43,899 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:11:43,899 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:11:43,900 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:11:43,900 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:11:43,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:11:43,900 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:11:43,900 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:11:43,900 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:11:43,900 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:11:43,900 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:11:43,901 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:11:43,901 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:11:43,901 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:11:43,901 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:11:43,901 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:11:43,901 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:11:43,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:11:43,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:11:43,902 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:11:43,902 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:11:43,902 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:11:43,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:11:43,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:11:43,902 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:11:43,902 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_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/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 -> 880ea7a6e3bf15e1c28bd78f5267ea1e88339658 [2019-12-07 18:11:43,999 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:11:44,007 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:11:44,009 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:11:44,010 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:11:44,011 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:11:44,011 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2019-12-07 18:11:44,047 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/bin/uautomizer/data/3a6ac4611/ff840b5351ee444e9be0159c278ac8cb/FLAGbf336b2c2 [2019-12-07 18:11:44,491 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:11:44,491 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2019-12-07 18:11:44,497 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/bin/uautomizer/data/3a6ac4611/ff840b5351ee444e9be0159c278ac8cb/FLAGbf336b2c2 [2019-12-07 18:11:44,506 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/bin/uautomizer/data/3a6ac4611/ff840b5351ee444e9be0159c278ac8cb [2019-12-07 18:11:44,508 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:11:44,509 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:11:44,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:11:44,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:11:44,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:11:44,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:11:44" (1/1) ... [2019-12-07 18:11:44,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bb40537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:44, skipping insertion in model container [2019-12-07 18:11:44,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:11:44" (1/1) ... [2019-12-07 18:11:44,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:11:44,536 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:11:44,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:11:44,713 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:11:44,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:11:44,753 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:11:44,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:44 WrapperNode [2019-12-07 18:11:44,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:11:44,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:11:44,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:11:44,754 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:11:44,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:44" (1/1) ... [2019-12-07 18:11:44,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:44" (1/1) ... [2019-12-07 18:11:44,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:11:44,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:11:44,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:11:44,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:11:44,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:44" (1/1) ... [2019-12-07 18:11:44,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:44" (1/1) ... [2019-12-07 18:11:44,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:44" (1/1) ... [2019-12-07 18:11:44,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:44" (1/1) ... [2019-12-07 18:11:44,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:44" (1/1) ... [2019-12-07 18:11:44,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:44" (1/1) ... [2019-12-07 18:11:44,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:44" (1/1) ... [2019-12-07 18:11:44,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:11:44,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:11:44,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:11:44,808 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:11:44,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/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 18:11:44,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:11:44,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 18:11:44,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 18:11:44,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 18:11:44,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:11:44,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:11:44,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 18:11:44,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-12-07 18:11:44,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:11:45,070 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:11:45,070 INFO L287 CfgBuilder]: Removed 18 assume(true) statements. [2019-12-07 18:11:45,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:11:45 BoogieIcfgContainer [2019-12-07 18:11:45,071 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:11:45,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:11:45,072 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:11:45,073 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:11:45,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:11:44" (1/3) ... [2019-12-07 18:11:45,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9e4b65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:11:45, skipping insertion in model container [2019-12-07 18:11:45,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:44" (2/3) ... [2019-12-07 18:11:45,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9e4b65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:11:45, skipping insertion in model container [2019-12-07 18:11:45,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:11:45" (3/3) ... [2019-12-07 18:11:45,077 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0832.c [2019-12-07 18:11:45,083 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:11:45,087 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 18:11:45,094 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 18:11:45,108 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:11:45,108 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:11:45,108 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:11:45,109 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:11:45,109 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:11:45,109 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:11:45,109 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:11:45,109 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:11:45,118 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2019-12-07 18:11:45,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 18:11:45,122 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:11:45,123 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:11:45,123 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:11:45,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:11:45,126 INFO L82 PathProgramCache]: Analyzing trace with hash 848189856, now seen corresponding path program 1 times [2019-12-07 18:11:45,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:11:45,132 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848970537] [2019-12-07 18:11:45,132 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:11:45,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:11:45,224 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 18:11:45,224 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848970537] [2019-12-07 18:11:45,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:11:45,225 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:11:45,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659672218] [2019-12-07 18:11:45,228 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:11:45,228 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:11:45,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:11:45,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:11:45,238 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 2 states. [2019-12-07 18:11:45,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:11:45,251 INFO L93 Difference]: Finished difference Result 79 states and 128 transitions. [2019-12-07 18:11:45,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:11:45,252 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-12-07 18:11:45,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:11:45,258 INFO L225 Difference]: With dead ends: 79 [2019-12-07 18:11:45,258 INFO L226 Difference]: Without dead ends: 37 [2019-12-07 18:11:45,260 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 18:11:45,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-12-07 18:11:45,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-12-07 18:11:45,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-12-07 18:11:45,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2019-12-07 18:11:45,283 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 11 [2019-12-07 18:11:45,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:11:45,283 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2019-12-07 18:11:45,283 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:11:45,284 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2019-12-07 18:11:45,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 18:11:45,284 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:11:45,284 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:11:45,284 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:11:45,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:11:45,285 INFO L82 PathProgramCache]: Analyzing trace with hash 963881224, now seen corresponding path program 1 times [2019-12-07 18:11:45,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:11:45,285 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303014503] [2019-12-07 18:11:45,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:11:45,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:11:45,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:11:45,363 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:11:45,363 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 18:11:45,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:11:45 BoogieIcfgContainer [2019-12-07 18:11:45,390 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:11:45,390 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:11:45,390 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:11:45,390 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:11:45,391 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:11:45" (3/4) ... [2019-12-07 18:11:45,393 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 18:11:45,393 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:11:45,395 INFO L168 Benchmark]: Toolchain (without parser) took 884.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 946.2 MB in the beginning and 1.0 GB in the end (delta: -91.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:11:45,395 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:11:45,396 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -153.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:11:45,396 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.69 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 18:11:45,396 INFO L168 Benchmark]: Boogie Preprocessor took 23.25 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 18:11:45,396 INFO L168 Benchmark]: RCFGBuilder took 262.77 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: 34.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:11:45,397 INFO L168 Benchmark]: TraceAbstraction took 318.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:11:45,397 INFO L168 Benchmark]: Witness Printer took 3.06 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 18:11:45,399 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 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 243.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -153.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.69 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 23.25 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 262.77 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: 34.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 318.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.06 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: 145]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 21, overapproximation of bitwiseAnd at line 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 71, overapproximation of someBinaryDOUBLEComparisonOperation at line 144. Possible FailurePath: [L17-L42] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L137] double x = __VERIFIER_nondet_double(); [L139] COND TRUE x == 0.0 || x == -0.0 [L45] double y, hi, lo, c, t; [L46] __int32_t k = 0, xsb; [L47] __uint32_t hx; VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L50] ieee_double_shape_type gh_u; [L51] gh_u.value = (x) [L52] EXPR gh_u.parts.msw [L52] (hx) = gh_u.parts.msw [L54] xsb = (hx >> 31) & 1 [L55] hx &= 0x7fffffff VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L57] COND TRUE hx >= 0x40862E42 VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L58] COND FALSE !(hx >= 0x7ff00000) VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L70] COND TRUE x > o_threshold_exp [L71] return huge_exp * huge_exp; VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L141] double res = __ieee754_exp(x); [L144] COND TRUE res != 1.0 VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L145] __VERIFIER_error() VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 41 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 53 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 18:11:46,760 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:11:46,762 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:11:46,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:11:46,770 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:11:46,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:11:46,772 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:11:46,773 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:11:46,775 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:11:46,776 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:11:46,777 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:11:46,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:11:46,778 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:11:46,779 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:11:46,780 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:11:46,781 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:11:46,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:11:46,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:11:46,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:11:46,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:11:46,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:11:46,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:11:46,787 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:11:46,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:11:46,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:11:46,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:11:46,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:11:46,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:11:46,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:11:46,792 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:11:46,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:11:46,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:11:46,793 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:11:46,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:11:46,794 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:11:46,794 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:11:46,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:11:46,795 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:11:46,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:11:46,795 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:11:46,796 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:11:46,796 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 18:11:46,806 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:11:46,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:11:46,807 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:11:46,807 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:11:46,807 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:11:46,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:11:46,808 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:11:46,808 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:11:46,808 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:11:46,808 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:11:46,808 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:11:46,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:11:46,808 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 18:11:46,808 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 18:11:46,809 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:11:46,809 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:11:46,809 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:11:46,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:11:46,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:11:46,809 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:11:46,809 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:11:46,809 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:11:46,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:11:46,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:11:46,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:11:46,810 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:11:46,810 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 18:11:46,810 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 18:11:46,810 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:11:46,811 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:11:46,811 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 18:11:46,811 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_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/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 -> 880ea7a6e3bf15e1c28bd78f5267ea1e88339658 [2019-12-07 18:11:46,993 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:11:47,002 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:11:47,004 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:11:47,005 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:11:47,005 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:11:47,006 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2019-12-07 18:11:47,045 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/bin/uautomizer/data/4fa04cc4a/029197b8e856493288cd6ef6bb5ff711/FLAGf6feecbda [2019-12-07 18:11:47,455 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:11:47,456 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2019-12-07 18:11:47,461 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/bin/uautomizer/data/4fa04cc4a/029197b8e856493288cd6ef6bb5ff711/FLAGf6feecbda [2019-12-07 18:11:47,817 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/bin/uautomizer/data/4fa04cc4a/029197b8e856493288cd6ef6bb5ff711 [2019-12-07 18:11:47,819 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:11:47,820 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:11:47,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:11:47,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:11:47,823 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:11:47,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:11:47" (1/1) ... [2019-12-07 18:11:47,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55bc42c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:47, skipping insertion in model container [2019-12-07 18:11:47,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:11:47" (1/1) ... [2019-12-07 18:11:47,830 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:11:47,846 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:11:47,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:11:47,986 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:11:48,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:11:48,063 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:11:48,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:48 WrapperNode [2019-12-07 18:11:48,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:11:48,063 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:11:48,064 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:11:48,064 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:11:48,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:48" (1/1) ... [2019-12-07 18:11:48,078 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:48" (1/1) ... [2019-12-07 18:11:48,097 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:11:48,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:11:48,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:11:48,097 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:11:48,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:48" (1/1) ... [2019-12-07 18:11:48,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:48" (1/1) ... [2019-12-07 18:11:48,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:48" (1/1) ... [2019-12-07 18:11:48,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:48" (1/1) ... [2019-12-07 18:11:48,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:48" (1/1) ... [2019-12-07 18:11:48,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:48" (1/1) ... [2019-12-07 18:11:48,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:48" (1/1) ... [2019-12-07 18:11:48,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:11:48,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:11:48,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:11:48,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:11:48,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/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 18:11:48,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 18:11:48,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 18:11:48,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:11:48,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-12-07 18:11:48,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 18:11:48,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:11:48,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:11:48,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 18:11:48,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:11:59,561 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:11:59,561 INFO L287 CfgBuilder]: Removed 18 assume(true) statements. [2019-12-07 18:11:59,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:11:59 BoogieIcfgContainer [2019-12-07 18:11:59,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:11:59,562 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:11:59,563 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:11:59,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:11:59,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:11:47" (1/3) ... [2019-12-07 18:11:59,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@587a9e25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:11:59, skipping insertion in model container [2019-12-07 18:11:59,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:48" (2/3) ... [2019-12-07 18:11:59,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@587a9e25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:11:59, skipping insertion in model container [2019-12-07 18:11:59,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:11:59" (3/3) ... [2019-12-07 18:11:59,566 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0832.c [2019-12-07 18:11:59,572 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:11:59,577 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 18:11:59,584 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 18:11:59,598 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:11:59,599 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:11:59,599 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:11:59,599 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:11:59,599 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:11:59,599 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:11:59,599 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:11:59,599 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:11:59,608 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2019-12-07 18:11:59,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 18:11:59,612 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:11:59,612 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:11:59,613 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:11:59,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:11:59,616 INFO L82 PathProgramCache]: Analyzing trace with hash 848189856, now seen corresponding path program 1 times [2019-12-07 18:11:59,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:11:59,624 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1720791200] [2019-12-07 18:11:59,624 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/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 18:11:59,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:11:59,945 INFO L264 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 18:11:59,948 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:11:59,958 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 18:11:59,958 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:11:59,960 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 18:11:59,961 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1720791200] [2019-12-07 18:11:59,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:11:59,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 18:11:59,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187362573] [2019-12-07 18:11:59,965 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:11:59,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:11:59,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:11:59,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:11:59,975 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 2 states. [2019-12-07 18:11:59,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:11:59,988 INFO L93 Difference]: Finished difference Result 79 states and 128 transitions. [2019-12-07 18:11:59,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:11:59,989 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-12-07 18:11:59,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:11:59,996 INFO L225 Difference]: With dead ends: 79 [2019-12-07 18:11:59,996 INFO L226 Difference]: Without dead ends: 37 [2019-12-07 18:11:59,998 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 18:12:00,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-12-07 18:12:00,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-12-07 18:12:00,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-12-07 18:12:00,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2019-12-07 18:12:00,022 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 11 [2019-12-07 18:12:00,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:12:00,023 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2019-12-07 18:12:00,023 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:12:00,023 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2019-12-07 18:12:00,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 18:12:00,023 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:12:00,023 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:12:00,224 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 18:12:00,224 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:12:00,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:12:00,225 INFO L82 PathProgramCache]: Analyzing trace with hash 963881224, now seen corresponding path program 1 times [2019-12-07 18:12:00,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:12:00,226 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296354981] [2019-12-07 18:12:00,227 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/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 18:12:00,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:12:00,567 INFO L264 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 18:12:00,569 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:12:00,628 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 18:12:00,628 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:12:00,676 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 18:12:00,676 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [296354981] [2019-12-07 18:12:00,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:12:00,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-07 18:12:00,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953119464] [2019-12-07 18:12:00,678 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 18:12:00,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:12:00,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 18:12:00,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:12:00,679 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand 8 states. [2019-12-07 18:12:11,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:12:11,623 INFO L93 Difference]: Finished difference Result 61 states and 75 transitions. [2019-12-07 18:12:12,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:12:12,354 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2019-12-07 18:12:12,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:12:12,354 INFO L225 Difference]: With dead ends: 61 [2019-12-07 18:12:12,354 INFO L226 Difference]: Without dead ends: 31 [2019-12-07 18:12:12,355 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-12-07 18:12:12,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-07 18:12:12,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2019-12-07 18:12:12,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-07 18:12:12,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2019-12-07 18:12:12,359 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 12 [2019-12-07 18:12:12,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:12:12,360 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2019-12-07 18:12:12,360 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 18:12:12,360 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2019-12-07 18:12:12,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 18:12:12,360 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:12:12,361 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:12:12,561 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 18:12:12,562 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:12:12,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:12:12,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1714660040, now seen corresponding path program 1 times [2019-12-07 18:12:12,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:12:12,563 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1190653557] [2019-12-07 18:12:12,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/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 18:12:12,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:12:12,855 INFO L264 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 18:12:12,857 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:12:13,224 WARN L192 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2019-12-07 18:12:13,711 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2019-12-07 18:12:13,739 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 18:12:13,739 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:12:15,557 WARN L192 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2019-12-07 18:12:15,559 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:12:18,861 WARN L192 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 12 [2019-12-07 18:12:18,863 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 18:12:18,864 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1190653557] [2019-12-07 18:12:18,864 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:12:18,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2019-12-07 18:12:18,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037527753] [2019-12-07 18:12:18,864 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 18:12:18,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:12:18,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 18:12:18,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-12-07 18:12:18,865 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 10 states. [2019-12-07 18:12:19,872 WARN L192 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2019-12-07 18:12:21,009 WARN L192 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2019-12-07 18:12:45,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:12:45,948 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2019-12-07 18:12:45,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:12:45,949 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 13 [2019-12-07 18:12:45,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:12:45,950 INFO L225 Difference]: With dead ends: 31 [2019-12-07 18:12:45,950 INFO L226 Difference]: Without dead ends: 27 [2019-12-07 18:12:45,950 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-12-07 18:12:45,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-07 18:12:45,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-07 18:12:45,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-07 18:12:45,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2019-12-07 18:12:45,954 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 13 [2019-12-07 18:12:45,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:12:45,954 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2019-12-07 18:12:45,954 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 18:12:45,954 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2019-12-07 18:12:45,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 18:12:45,955 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:12:45,955 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:12:46,155 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 18:12:46,156 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:12:46,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:12:46,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1479203763, now seen corresponding path program 1 times [2019-12-07 18:12:46,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:12:46,158 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [70413000] [2019-12-07 18:12:46,159 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 18:12:48,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:12:48,982 INFO L264 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 18:12:48,983 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:12:49,102 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 18:12:49,102 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:12:49,873 WARN L192 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2019-12-07 18:12:49,875 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:12:52,033 WARN L192 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 12 [2019-12-07 18:12:52,035 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 18:12:52,035 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [70413000] [2019-12-07 18:12:52,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:12:52,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-12-07 18:12:52,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196625647] [2019-12-07 18:12:52,036 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 18:12:52,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:12:52,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:12:52,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:12:52,037 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 6 states. [2019-12-07 18:12:52,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:12:52,221 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2019-12-07 18:12:52,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:12:52,223 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-12-07 18:12:52,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:12:52,223 INFO L225 Difference]: With dead ends: 27 [2019-12-07 18:12:52,223 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 18:12:52,223 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:12:52,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 18:12:52,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 18:12:52,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 18:12:52,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 18:12:52,224 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-12-07 18:12:52,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:12:52,224 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:12:52,224 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 18:12:52,224 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:12:52,224 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 18:12:52,425 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 18:12:52,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 18:12:52,806 WARN L192 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2019-12-07 18:12:52,839 INFO L246 CegarLoopResult]: For program point L60-1(lines 60 64) no Hoare annotation was computed. [2019-12-07 18:12:52,839 INFO L242 CegarLoopResult]: At program point L60-2(lines 60 64) the Hoare annotation is: false [2019-12-07 18:12:52,839 INFO L246 CegarLoopResult]: For program point L60-3(lines 58 69) no Hoare annotation was computed. [2019-12-07 18:12:52,839 INFO L246 CegarLoopResult]: For program point L77(lines 77 86) no Hoare annotation was computed. [2019-12-07 18:12:52,839 INFO L246 CegarLoopResult]: For program point L77-2(lines 77 86) no Hoare annotation was computed. [2019-12-07 18:12:52,839 INFO L246 CegarLoopResult]: For program point L102-1(lines 102 106) no Hoare annotation was computed. [2019-12-07 18:12:52,839 INFO L242 CegarLoopResult]: At program point L102-2(lines 102 106) the Hoare annotation is: false [2019-12-07 18:12:52,840 INFO L242 CegarLoopResult]: At program point L127(lines 44 129) the Hoare annotation is: (and (exists ((ULTIMATE.start___ieee754_exp_~x (_ FloatingPoint 11 53))) (and (fp.eq ULTIMATE.start___ieee754_exp_~x (_ +zero 11 53)) (= (fp.add currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) ULTIMATE.start___ieee754_exp_~x) |ULTIMATE.start___ieee754_exp_#res|))) (fp.eq ULTIMATE.start___ieee754_exp_~x (_ +zero 11 53)) (= ((_ to_fp 11 53) currentRoundingMode 1.0) ~one_exp~0) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 18:12:52,840 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 18:12:52,840 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 18:12:52,840 INFO L246 CegarLoopResult]: For program point L144(lines 144 147) no Hoare annotation was computed. [2019-12-07 18:12:52,840 INFO L246 CegarLoopResult]: For program point L70(lines 70 71) no Hoare annotation was computed. [2019-12-07 18:12:52,840 INFO L246 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2019-12-07 18:12:52,840 INFO L246 CegarLoopResult]: For program point L96(lines 96 99) no Hoare annotation was computed. [2019-12-07 18:12:52,840 INFO L246 CegarLoopResult]: For program point L121(lines 121 126) no Hoare annotation was computed. [2019-12-07 18:12:52,840 INFO L246 CegarLoopResult]: For program point L88(lines 88 91) no Hoare annotation was computed. [2019-12-07 18:12:52,840 INFO L246 CegarLoopResult]: For program point L121-1(lines 114 128) no Hoare annotation was computed. [2019-12-07 18:12:52,841 INFO L246 CegarLoopResult]: For program point L121-2(lines 121 126) no Hoare annotation was computed. [2019-12-07 18:12:52,841 INFO L246 CegarLoopResult]: For program point L88-2(lines 76 91) no Hoare annotation was computed. [2019-12-07 18:12:52,841 INFO L246 CegarLoopResult]: For program point L72(lines 72 73) no Hoare annotation was computed. [2019-12-07 18:12:52,841 INFO L246 CegarLoopResult]: For program point L89(lines 89 90) no Hoare annotation was computed. [2019-12-07 18:12:52,841 INFO L246 CegarLoopResult]: For program point L139(lines 139 148) no Hoare annotation was computed. [2019-12-07 18:12:52,841 INFO L246 CegarLoopResult]: For program point L139-2(lines 139 148) no Hoare annotation was computed. [2019-12-07 18:12:52,841 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 18:12:52,841 INFO L246 CegarLoopResult]: For program point L57(lines 57 74) no Hoare annotation was computed. [2019-12-07 18:12:52,841 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 145) no Hoare annotation was computed. [2019-12-07 18:12:52,841 INFO L246 CegarLoopResult]: For program point L57-2(lines 44 129) no Hoare annotation was computed. [2019-12-07 18:12:52,842 INFO L246 CegarLoopResult]: For program point L49-1(lines 49 53) no Hoare annotation was computed. [2019-12-07 18:12:52,842 INFO L242 CegarLoopResult]: At program point L49-2(lines 49 53) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_exp~0) (fp.eq ULTIMATE.start___ieee754_exp_~x (_ +zero 11 53)) (= ((_ to_fp 11 53) currentRoundingMode 1.0) ~one_exp~0) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 18:12:52,842 INFO L246 CegarLoopResult]: For program point L49-3(lines 49 53) no Hoare annotation was computed. [2019-12-07 18:12:52,842 INFO L246 CegarLoopResult]: For program point L107(lines 107 112) no Hoare annotation was computed. [2019-12-07 18:12:52,842 INFO L246 CegarLoopResult]: For program point L107-1(lines 100 114) no Hoare annotation was computed. [2019-12-07 18:12:52,842 INFO L246 CegarLoopResult]: For program point L107-2(lines 107 112) no Hoare annotation was computed. [2019-12-07 18:12:52,842 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 18:12:52,842 INFO L246 CegarLoopResult]: For program point L58(lines 58 69) no Hoare annotation was computed. [2019-12-07 18:12:52,842 INFO L246 CegarLoopResult]: For program point L116-1(lines 116 120) no Hoare annotation was computed. [2019-12-07 18:12:52,843 INFO L242 CegarLoopResult]: At program point L116-2(lines 116 120) the Hoare annotation is: false [2019-12-07 18:12:52,843 INFO L246 CegarLoopResult]: For program point L100(lines 100 128) no Hoare annotation was computed. [2019-12-07 18:12:52,843 INFO L249 CegarLoopResult]: At program point L150(lines 131 151) the Hoare annotation is: true [2019-12-07 18:12:52,843 INFO L246 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2019-12-07 18:12:52,843 INFO L246 CegarLoopResult]: For program point L68-2(line 68) no Hoare annotation was computed. [2019-12-07 18:12:52,847 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2019-12-07 18:12:52,848 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2019-12-07 18:12:52,850 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:12:52,851 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:12:52,852 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:12:52,852 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:12:52,852 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:12:52,854 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2019-12-07 18:12:52,854 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2019-12-07 18:12:52,854 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:12:52,855 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:12:52,855 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:12:52,855 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:12:52,855 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:12:52,856 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:12:52,856 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:12:52,857 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:12:52,857 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:12:52,857 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:12:52,858 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:12:52,858 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:12:52,858 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:12:52,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:12:52 BoogieIcfgContainer [2019-12-07 18:12:52,860 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:12:52,860 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:12:52,860 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:12:52,860 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:12:52,860 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:11:59" (3/4) ... [2019-12-07 18:12:52,863 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 18:12:52,871 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-12-07 18:12:52,872 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-12-07 18:12:52,872 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 18:12:52,890 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists ULTIMATE.start___ieee754_exp_~x : C_DOUBLE :: ~fp.eq~DOUBLE(ULTIMATE.start___ieee754_exp_~x, ~Pluszero~LONGDOUBLE()) && ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ULTIMATE.start___ieee754_exp_~x) == \result) && ~fp.eq~DOUBLE(x, ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_exp) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-12-07 18:12:52,926 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d99ab9b3-e0be-4002-93ec-5fc09a1b6262/bin/uautomizer/witness.graphml [2019-12-07 18:12:52,926 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:12:52,927 INFO L168 Benchmark]: Toolchain (without parser) took 65107.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 952.4 MB in the beginning and 876.7 MB in the end (delta: 75.6 MB). Peak memory consumption was 178.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:12:52,928 INFO L168 Benchmark]: CDTParser took 0.14 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 18:12:52,928 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.67 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -139.7 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:12:52,928 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.52 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:12:52,928 INFO L168 Benchmark]: Boogie Preprocessor took 28.88 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 18:12:52,929 INFO L168 Benchmark]: RCFGBuilder took 11435.69 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: 47.0 MB). Peak memory consumption was 47.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:12:52,929 INFO L168 Benchmark]: TraceAbstraction took 53297.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 883.5 MB in the end (delta: 154.8 MB). Peak memory consumption was 154.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:12:52,929 INFO L168 Benchmark]: Witness Printer took 66.56 ms. Allocated memory is still 1.1 GB. Free memory was 883.5 MB in the beginning and 876.7 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:12:52,930 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 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 242.67 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -139.7 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.52 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.88 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 11435.69 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: 47.0 MB). Peak memory consumption was 47.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 53297.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 883.5 MB in the end (delta: 154.8 MB). Peak memory consumption was 154.8 MB. Max. memory is 11.5 GB. * Witness Printer took 66.56 ms. Allocated memory is still 1.1 GB. Free memory was 883.5 MB in the beginning and 876.7 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 145]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 44]: Loop Invariant [2019-12-07 18:12:52,934 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2019-12-07 18:12:52,934 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2019-12-07 18:12:52,935 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:12:52,935 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:12:52,935 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:12:52,935 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:12:52,935 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:12:52,936 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2019-12-07 18:12:52,936 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2019-12-07 18:12:52,936 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:12:52,936 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:12:52,936 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:12:52,936 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:12:52,937 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((\exists ULTIMATE.start___ieee754_exp_~x : C_DOUBLE :: ~fp.eq~DOUBLE(ULTIMATE.start___ieee754_exp_~x, ~Pluszero~LONGDOUBLE()) && ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ULTIMATE.start___ieee754_exp_~x) == \result) && ~fp.eq~DOUBLE(x, ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_exp) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 49]: Loop Invariant [2019-12-07 18:12:52,937 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:12:52,937 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:12:52,937 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:12:52,937 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:12:52,938 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:12:52,938 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:12:52,938 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:12:52,938 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_exp && ~fp.eq~DOUBLE(x, ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_exp) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 102]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 41 locations, 1 error locations. Result: SAFE, OverallTime: 52.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 38.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, HoareTripleCheckerStatistics: 106 SDtfs, 62 SDslu, 157 SDs, 0 SdLazy, 48 SolverSat, 6 SolverUnsat, 12 SolverUnknown, 0 SolverNotchecked, 33.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 10.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred 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, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 9 NumberOfFragments, 46 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 9.5s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 94 ConstructedInterpolants, 10 QuantifiedInterpolants, 7223 SizeOfPredicates, 21 NumberOfNonLiveVariables, 291 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...