./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1031.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1031.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/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 20ebedc7025deba0ba6b1d81eeaced9b389ea599 ............................................................................................................................................................................................................................................................................. 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_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1031.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/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 20ebedc7025deba0ba6b1d81eeaced9b389ea599 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 22:30:35,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:30:35,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:30:35,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:30:35,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:30:35,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:30:35,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:30:35,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:30:35,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:30:35,111 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:30:35,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:30:35,114 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:30:35,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:30:35,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:30:35,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:30:35,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:30:35,119 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:30:35,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:30:35,122 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:30:35,125 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:30:35,129 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:30:35,131 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:30:35,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:30:35,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:30:35,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:30:35,138 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:30:35,139 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:30:35,140 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:30:35,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:30:35,141 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:30:35,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:30:35,142 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:30:35,143 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:30:35,144 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:30:35,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:30:35,145 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:30:35,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:30:35,146 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:30:35,146 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:30:35,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:30:35,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:30:35,149 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 22:30:35,182 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:30:35,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:30:35,183 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:30:35,183 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:30:35,184 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:30:35,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:30:35,184 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 22:30:35,184 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:30:35,184 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 22:30:35,184 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:30:35,185 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 22:30:35,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 22:30:35,185 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 22:30:35,185 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 22:30:35,185 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:30:35,186 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:30:35,186 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 22:30:35,186 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:30:35,186 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:30:35,189 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 22:30:35,189 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 22:30:35,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 22:30:35,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:30:35,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 22:30:35,190 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 22:30:35,190 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:30:35,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 22:30:35,191 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 22:30:35,191 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_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/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 -> 20ebedc7025deba0ba6b1d81eeaced9b389ea599 [2019-11-19 22:30:35,337 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:30:35,348 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:30:35,351 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:30:35,352 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:30:35,352 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:30:35,353 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1031.c [2019-11-19 22:30:35,400 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/bin/uautomizer/data/201a20ab7/bf4c088f33b14d6ab5cc3db9520ba1b3/FLAG7b50912b7 [2019-11-19 22:30:35,831 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:30:35,832 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/sv-benchmarks/c/float-newlib/float_req_bl_1031.c [2019-11-19 22:30:35,839 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/bin/uautomizer/data/201a20ab7/bf4c088f33b14d6ab5cc3db9520ba1b3/FLAG7b50912b7 [2019-11-19 22:30:35,854 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/bin/uautomizer/data/201a20ab7/bf4c088f33b14d6ab5cc3db9520ba1b3 [2019-11-19 22:30:35,857 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:30:35,858 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:30:35,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:30:35,864 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:30:35,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:30:35,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:30:35" (1/1) ... [2019-11-19 22:30:35,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@240082bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:35, skipping insertion in model container [2019-11-19 22:30:35,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:30:35" (1/1) ... [2019-11-19 22:30:35,877 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:30:35,894 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:30:36,095 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:30:36,098 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:30:36,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:30:36,141 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:30:36,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:36 WrapperNode [2019-11-19 22:30:36,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:30:36,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:30:36,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:30:36,143 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:30:36,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:36" (1/1) ... [2019-11-19 22:30:36,159 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:36" (1/1) ... [2019-11-19 22:30:36,175 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:30:36,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:30:36,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:30:36,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:30:36,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:36" (1/1) ... [2019-11-19 22:30:36,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:36" (1/1) ... [2019-11-19 22:30:36,186 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:36" (1/1) ... [2019-11-19 22:30:36,187 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:36" (1/1) ... [2019-11-19 22:30:36,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:36" (1/1) ... [2019-11-19 22:30:36,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:36" (1/1) ... [2019-11-19 22:30:36,200 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:36" (1/1) ... [2019-11-19 22:30:36,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:30:36,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:30:36,204 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:30:36,204 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:30:36,205 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/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 [2019-11-19 22:30:36,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-19 22:30:36,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 22:30:36,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-19 22:30:36,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:30:36,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:30:36,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 22:30:36,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 22:30:36,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 22:30:36,598 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:30:36,598 INFO L285 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-19 22:30:36,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:30:36 BoogieIcfgContainer [2019-11-19 22:30:36,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:30:36,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 22:30:36,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 22:30:36,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 22:30:36,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:30:35" (1/3) ... [2019-11-19 22:30:36,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3356db4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:30:36, skipping insertion in model container [2019-11-19 22:30:36,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:36" (2/3) ... [2019-11-19 22:30:36,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3356db4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:30:36, skipping insertion in model container [2019-11-19 22:30:36,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:30:36" (3/3) ... [2019-11-19 22:30:36,606 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1031.c [2019-11-19 22:30:36,613 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 22:30:36,618 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 22:30:36,628 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 22:30:36,648 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 22:30:36,649 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 22:30:36,649 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 22:30:36,649 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:30:36,650 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:30:36,650 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 22:30:36,650 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:30:36,650 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 22:30:36,664 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-11-19 22:30:36,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-19 22:30:36,670 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:30:36,671 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:30:36,671 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:30:36,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:36,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1590434411, now seen corresponding path program 1 times [2019-11-19 22:30:36,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:36,683 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384616959] [2019-11-19 22:30:36,683 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:36,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:30:36,768 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384616959] [2019-11-19 22:30:36,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:30:36,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 22:30:36,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116518525] [2019-11-19 22:30:36,777 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 22:30:36,777 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:30:36,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 22:30:36,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 22:30:36,788 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2019-11-19 22:30:36,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:30:36,802 INFO L93 Difference]: Finished difference Result 40 states and 58 transitions. [2019-11-19 22:30:36,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 22:30:36,804 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-19 22:30:36,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:30:36,811 INFO L225 Difference]: With dead ends: 40 [2019-11-19 22:30:36,812 INFO L226 Difference]: Without dead ends: 18 [2019-11-19 22:30:36,814 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 [2019-11-19 22:30:36,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-19 22:30:36,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-19 22:30:36,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-19 22:30:36,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2019-11-19 22:30:36,846 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 10 [2019-11-19 22:30:36,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:30:36,847 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2019-11-19 22:30:36,847 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 22:30:36,847 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2019-11-19 22:30:36,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-19 22:30:36,848 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:30:36,848 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:30:36,848 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:30:36,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:36,849 INFO L82 PathProgramCache]: Analyzing trace with hash -744872786, now seen corresponding path program 1 times [2019-11-19 22:30:36,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:36,849 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905120359] [2019-11-19 22:30:36,849 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:36,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:36,945 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:30:36,945 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 22:30:36,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:30:36 BoogieIcfgContainer [2019-11-19 22:30:36,966 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 22:30:36,967 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:30:36,967 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:30:36,967 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:30:36,968 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:30:36" (3/4) ... [2019-11-19 22:30:36,971 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 22:30:36,971 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:30:36,973 INFO L168 Benchmark]: Toolchain (without parser) took 1114.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -150.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. [2019-11-19 22:30:36,974 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:30:36,975 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -199.3 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-19 22:30:36,975 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.37 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:30:36,976 INFO L168 Benchmark]: Boogie Preprocessor took 27.35 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:30:36,976 INFO L168 Benchmark]: RCFGBuilder took 395.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. [2019-11-19 22:30:36,977 INFO L168 Benchmark]: TraceAbstraction took 365.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2019-11-19 22:30:36,977 INFO L168 Benchmark]: Witness Printer took 4.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:30:36,981 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 278.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -199.3 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.37 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.35 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 395.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 365.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 70]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 55, overapproximation of someBinaryArithmeticFLOAToperation at line 42, overapproximation of bitwiseAnd at line 22. Possible FailurePath: [L65] float x = 0.0f / 0.0f; [L12] __uint32_t w; [L14] int exponent_less_127; [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (w) = gf_u.word [L22] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 [L24] COND FALSE !(exponent_less_127 < 23) [L40] COND TRUE exponent_less_127 == 128 [L42] return x + x; [L66] float res = round_float(x); [L55] return x != x; [L69] COND TRUE !isnan_float(res) [L70] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 25 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=21occurred 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, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 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 0.1.24-678e011 [2019-11-19 22:30:38,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:30:38,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:30:38,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:30:38,819 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:30:38,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:30:38,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:30:38,831 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:30:38,836 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:30:38,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:30:38,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:30:38,842 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:30:38,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:30:38,845 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:30:38,847 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:30:38,848 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:30:38,849 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:30:38,850 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:30:38,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:30:38,856 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:30:38,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:30:38,862 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:30:38,864 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:30:38,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:30:38,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:30:38,869 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:30:38,869 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:30:38,871 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:30:38,871 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:30:38,874 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:30:38,874 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:30:38,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:30:38,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:30:38,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:30:38,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:30:38,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:30:38,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:30:38,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:30:38,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:30:38,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:30:38,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:30:38,882 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-19 22:30:38,908 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:30:38,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:30:38,918 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:30:38,918 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:30:38,919 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:30:38,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:30:38,919 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 22:30:38,919 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 22:30:38,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:30:38,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 22:30:38,920 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 22:30:38,920 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 22:30:38,921 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-19 22:30:38,921 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-19 22:30:38,921 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 22:30:38,921 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:30:38,922 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:30:38,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 22:30:38,922 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:30:38,922 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:30:38,922 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 22:30:38,923 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 22:30:38,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 22:30:38,923 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:30:38,923 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 22:30:38,924 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 22:30:38,924 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-19 22:30:38,924 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-19 22:30:38,924 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 22:30:38,925 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-19 22:30:38,925 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_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/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 -> 20ebedc7025deba0ba6b1d81eeaced9b389ea599 [2019-11-19 22:30:39,188 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:30:39,198 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:30:39,201 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:30:39,203 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:30:39,203 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:30:39,204 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1031.c [2019-11-19 22:30:39,253 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/bin/uautomizer/data/7f5ec046f/41b63ffd08d34f9b801e7b2984046965/FLAGb5abe230c [2019-11-19 22:30:39,618 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:30:39,619 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/sv-benchmarks/c/float-newlib/float_req_bl_1031.c [2019-11-19 22:30:39,626 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/bin/uautomizer/data/7f5ec046f/41b63ffd08d34f9b801e7b2984046965/FLAGb5abe230c [2019-11-19 22:30:39,979 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/bin/uautomizer/data/7f5ec046f/41b63ffd08d34f9b801e7b2984046965 [2019-11-19 22:30:39,982 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:30:39,983 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:30:39,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:30:39,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:30:39,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:30:39,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:30:39" (1/1) ... [2019-11-19 22:30:39,991 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3589e449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:39, skipping insertion in model container [2019-11-19 22:30:39,991 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:30:39" (1/1) ... [2019-11-19 22:30:39,998 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:30:40,015 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:30:40,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:30:40,179 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:30:40,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:30:40,226 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:30:40,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:40 WrapperNode [2019-11-19 22:30:40,227 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:30:40,228 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:30:40,228 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:30:40,228 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:30:40,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:40" (1/1) ... [2019-11-19 22:30:40,245 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:40" (1/1) ... [2019-11-19 22:30:40,280 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:30:40,280 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:30:40,281 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:30:40,281 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:30:40,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:40" (1/1) ... [2019-11-19 22:30:40,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:40" (1/1) ... [2019-11-19 22:30:40,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:40" (1/1) ... [2019-11-19 22:30:40,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:40" (1/1) ... [2019-11-19 22:30:40,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:40" (1/1) ... [2019-11-19 22:30:40,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:40" (1/1) ... [2019-11-19 22:30:40,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:40" (1/1) ... [2019-11-19 22:30:40,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:30:40,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:30:40,421 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:30:40,421 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:30:40,422 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/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 [2019-11-19 22:30:40,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-19 22:30:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:30:40,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:30:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-19 22:30:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 22:30:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-19 22:30:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-19 22:30:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 22:30:40,793 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:30:40,793 INFO L285 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-19 22:30:40,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:30:40 BoogieIcfgContainer [2019-11-19 22:30:40,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:30:40,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 22:30:40,795 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 22:30:40,798 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 22:30:40,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:30:39" (1/3) ... [2019-11-19 22:30:40,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c42f661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:30:40, skipping insertion in model container [2019-11-19 22:30:40,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:40" (2/3) ... [2019-11-19 22:30:40,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c42f661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:30:40, skipping insertion in model container [2019-11-19 22:30:40,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:30:40" (3/3) ... [2019-11-19 22:30:40,801 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1031.c [2019-11-19 22:30:40,834 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 22:30:40,843 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 22:30:40,852 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 22:30:40,871 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 22:30:40,871 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 22:30:40,872 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 22:30:40,872 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:30:40,872 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:30:40,872 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 22:30:40,872 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:30:40,873 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 22:30:40,885 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-11-19 22:30:40,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-19 22:30:40,891 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:30:40,892 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:30:40,892 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:30:40,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:40,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1590434411, now seen corresponding path program 1 times [2019-11-19 22:30:40,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:30:40,906 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1602544293] [2019-11-19 22:30:40,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/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 [2019-11-19 22:30:40,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:40,985 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-19 22:30:40,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:30:40,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:30:41,000 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:30:41,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:30:41,005 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1602544293] [2019-11-19 22:30:41,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:30:41,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-19 22:30:41,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668546459] [2019-11-19 22:30:41,011 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 22:30:41,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:30:41,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 22:30:41,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 22:30:41,025 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2019-11-19 22:30:41,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:30:41,038 INFO L93 Difference]: Finished difference Result 40 states and 58 transitions. [2019-11-19 22:30:41,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 22:30:41,039 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-19 22:30:41,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:30:41,048 INFO L225 Difference]: With dead ends: 40 [2019-11-19 22:30:41,048 INFO L226 Difference]: Without dead ends: 18 [2019-11-19 22:30:41,051 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 22:30:41,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-19 22:30:41,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-19 22:30:41,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-19 22:30:41,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2019-11-19 22:30:41,079 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 10 [2019-11-19 22:30:41,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:30:41,079 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2019-11-19 22:30:41,080 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 22:30:41,080 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2019-11-19 22:30:41,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-19 22:30:41,080 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:30:41,080 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:30:41,281 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-19 22:30:41,281 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:30:41,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:41,281 INFO L82 PathProgramCache]: Analyzing trace with hash -744872786, now seen corresponding path program 1 times [2019-11-19 22:30:41,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:30:41,282 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [546837258] [2019-11-19 22:30:41,283 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/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 [2019-11-19 22:30:41,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:41,378 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-19 22:30:41,379 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:30:41,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:30:41,467 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:30:41,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:30:41,577 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [546837258] [2019-11-19 22:30:41,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:30:41,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2019-11-19 22:30:41,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343717801] [2019-11-19 22:30:41,579 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-19 22:30:41,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:30:41,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-19 22:30:41,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-19 22:30:41,580 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand 8 states. [2019-11-19 22:30:41,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:30:41,770 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2019-11-19 22:30:41,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 22:30:41,770 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-11-19 22:30:41,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:30:41,771 INFO L225 Difference]: With dead ends: 23 [2019-11-19 22:30:41,771 INFO L226 Difference]: Without dead ends: 17 [2019-11-19 22:30:41,772 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-11-19 22:30:41,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-19 22:30:41,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-19 22:30:41,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-19 22:30:41,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2019-11-19 22:30:41,777 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 11 [2019-11-19 22:30:41,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:30:41,777 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2019-11-19 22:30:41,777 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-19 22:30:41,777 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-11-19 22:30:41,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-19 22:30:41,778 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:30:41,779 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:30:41,988 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-19 22:30:41,988 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:30:41,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:41,989 INFO L82 PathProgramCache]: Analyzing trace with hash 812423977, now seen corresponding path program 1 times [2019-11-19 22:30:41,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:30:41,990 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684593972] [2019-11-19 22:30:41,990 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/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 [2019-11-19 22:30:42,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:42,060 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-19 22:30:42,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:30:42,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:30:42,136 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:30:42,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:30:42,255 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684593972] [2019-11-19 22:30:42,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:30:42,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-19 22:30:42,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603921172] [2019-11-19 22:30:42,256 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-19 22:30:42,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:30:42,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-19 22:30:42,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-19 22:30:42,257 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 8 states. [2019-11-19 22:30:42,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:30:42,354 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2019-11-19 22:30:42,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 22:30:42,354 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-11-19 22:30:42,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:30:42,355 INFO L225 Difference]: With dead ends: 17 [2019-11-19 22:30:42,355 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 22:30:42,355 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-19 22:30:42,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 22:30:42,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 22:30:42,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 22:30:42,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 22:30:42,356 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-19 22:30:42,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:30:42,357 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:30:42,357 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-19 22:30:42,357 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 22:30:42,357 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 22:30:42,568 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-19 22:30:42,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-19 22:30:42,640 INFO L444 ceAbstractionStarter]: For program point L27(lines 27 29) no Hoare annotation was computed. [2019-11-19 22:30:42,640 INFO L444 ceAbstractionStarter]: For program point L40(lines 40 44) no Hoare annotation was computed. [2019-11-19 22:30:42,641 INFO L444 ceAbstractionStarter]: For program point L69(lines 69 72) no Hoare annotation was computed. [2019-11-19 22:30:42,641 INFO L444 ceAbstractionStarter]: For program point L32(lines 32 34) no Hoare annotation was computed. [2019-11-19 22:30:42,641 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-19 22:30:42,641 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-19 22:30:42,641 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-19 22:30:42,641 INFO L444 ceAbstractionStarter]: For program point L24(lines 24 45) no Hoare annotation was computed. [2019-11-19 22:30:42,642 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 70) no Hoare annotation was computed. [2019-11-19 22:30:42,642 INFO L444 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2019-11-19 22:30:42,642 INFO L440 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: (= ULTIMATE.start_round_float_~x (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2019-11-19 22:30:42,642 INFO L444 ceAbstractionStarter]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2019-11-19 22:30:42,642 INFO L447 ceAbstractionStarter]: At program point L74(lines 57 75) the Hoare annotation is: true [2019-11-19 22:30:42,642 INFO L444 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2019-11-19 22:30:42,643 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-19 22:30:42,643 INFO L444 ceAbstractionStarter]: For program point L25(lines 25 38) no Hoare annotation was computed. [2019-11-19 22:30:42,643 INFO L444 ceAbstractionStarter]: For program point L46(lines 46 50) no Hoare annotation was computed. [2019-11-19 22:30:42,643 INFO L444 ceAbstractionStarter]: For program point L46-1(lines 11 52) no Hoare annotation was computed. [2019-11-19 22:30:42,643 INFO L444 ceAbstractionStarter]: For program point L46-2(lines 46 50) no Hoare annotation was computed. [2019-11-19 22:30:42,644 INFO L440 ceAbstractionStarter]: At program point L55(line 55) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= |ULTIMATE.start_round_float_#res| (fp.add roundNearestTiesToEven .cse0 .cse0)) (= ULTIMATE.start_round_float_~x .cse0))) [2019-11-19 22:30:42,644 INFO L440 ceAbstractionStarter]: At program point L51(lines 11 52) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= |ULTIMATE.start_round_float_#res| (fp.add roundNearestTiesToEven .cse0 .cse0)) (= ULTIMATE.start_round_float_~x .cse0))) [2019-11-19 22:30:42,656 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,657 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,657 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,657 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,662 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,662 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,662 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,663 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,665 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,666 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,666 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,666 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,667 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,668 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,668 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,668 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,669 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,669 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:30:42 BoogieIcfgContainer [2019-11-19 22:30:42,674 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 22:30:42,674 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:30:42,674 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:30:42,675 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:30:42,675 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:30:40" (3/4) ... [2019-11-19 22:30:42,694 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 22:30:42,717 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-19 22:30:42,718 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-19 22:30:42,719 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-19 22:30:42,744 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-11-19 22:30:42,744 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (1bv32 == \result && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-11-19 22:30:42,775 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c06fccf0-a7d1-4052-9df8-78f8e663ab2a/bin/uautomizer/witness.graphml [2019-11-19 22:30:42,775 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:30:42,777 INFO L168 Benchmark]: Toolchain (without parser) took 2793.82 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 233.8 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -138.8 MB). Peak memory consumption was 95.1 MB. Max. memory is 11.5 GB. [2019-11-19 22:30:42,779 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:30:42,780 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.46 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 945.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:30:42,781 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 35.1 MB). Free memory was 945.7 MB in the beginning and 1.0 GB in the end (delta: -61.2 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2019-11-19 22:30:42,781 INFO L168 Benchmark]: Boogie Preprocessor took 140.14 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 198.7 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -222.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:30:42,782 INFO L168 Benchmark]: RCFGBuilder took 373.41 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. [2019-11-19 22:30:42,782 INFO L168 Benchmark]: TraceAbstraction took 1878.79 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 106.5 MB). Peak memory consumption was 106.5 MB. Max. memory is 11.5 GB. [2019-11-19 22:30:42,783 INFO L168 Benchmark]: Witness Printer took 101.04 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:30:42,786 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 243.46 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 945.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 35.1 MB). Free memory was 945.7 MB in the beginning and 1.0 GB in the end (delta: -61.2 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 140.14 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 198.7 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -222.9 MB). There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 373.41 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1878.79 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 106.5 MB). Peak memory consumption was 106.5 MB. Max. memory is 11.5 GB. * Witness Printer took 101.04 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - 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 - 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 - 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 - 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 - 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 - 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.traceabstraction: - PositiveResult [Line: 70]: 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: 57]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 55]: Loop Invariant [2019-11-19 22:30:42,796 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,797 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,797 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,797 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,798 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,798 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,799 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,799 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (1bv32 == \result && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 11]: Loop Invariant [2019-11-19 22:30:42,800 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,800 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,800 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,801 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,801 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,801 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,802 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,802 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 16]: Loop Invariant [2019-11-19 22:30:42,803 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:30:42,803 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Result: SAFE, OverallTime: 1.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 44 SDtfs, 19 SDslu, 88 SDs, 0 SdLazy, 47 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 48 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 2 QuantifiedInterpolants, 2868 SizeOfPredicates, 14 NumberOfNonLiveVariables, 94 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...