./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/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 73dc70fc086318c728ead326eb8ef835fee9f9a2 ................................................................................................................................................................................................................................................................................................ 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_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/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 73dc70fc086318c728ead326eb8ef835fee9f9a2 ............................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 23:19:20,756 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:19:20,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:19:20,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:19:20,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:19:20,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:19:20,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:19:20,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:19:20,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:19:20,794 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:19:20,795 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:19:20,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:19:20,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:19:20,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:19:20,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:19:20,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:19:20,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:19:20,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:19:20,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:19:20,806 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:19:20,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:19:20,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:19:20,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:19:20,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:19:20,820 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:19:20,821 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:19:20,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:19:20,823 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:19:20,823 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:19:20,824 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:19:20,825 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:19:20,825 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:19:20,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:19:20,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:19:20,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:19:20,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:19:20,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:19:20,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:19:20,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:19:20,831 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:19:20,832 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:19:20,833 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 23:19:20,863 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:19:20,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:19:20,864 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:19:20,865 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:19:20,865 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:19:20,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:19:20,866 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:19:20,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:19:20,866 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:19:20,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:19:20,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:19:20,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:19:20,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:19:20,867 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:19:20,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:19:20,867 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:19:20,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:19:20,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:19:20,868 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:19:20,868 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:19:20,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:19:20,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:19:20,869 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:19:20,869 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:19:20,870 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:19:20,870 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:19:20,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 23:19:20,870 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:19:20,871 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_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/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 -> 73dc70fc086318c728ead326eb8ef835fee9f9a2 [2019-11-15 23:19:20,917 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:19:20,935 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:19:20,939 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:19:20,941 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:19:20,941 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:19:20,943 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2019-11-15 23:19:21,019 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/bin/uautomizer/data/79e49d2f2/0ecec9f751a749619606a0f44ef9d241/FLAGd60a47d5b [2019-11-15 23:19:21,448 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:19:21,449 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2019-11-15 23:19:21,456 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/bin/uautomizer/data/79e49d2f2/0ecec9f751a749619606a0f44ef9d241/FLAGd60a47d5b [2019-11-15 23:19:21,837 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/bin/uautomizer/data/79e49d2f2/0ecec9f751a749619606a0f44ef9d241 [2019-11-15 23:19:21,840 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:19:21,842 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:19:21,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:19:21,843 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:19:21,847 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:19:21,849 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:19:21" (1/1) ... [2019-11-15 23:19:21,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f06e0d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:19:21, skipping insertion in model container [2019-11-15 23:19:21,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:19:21" (1/1) ... [2019-11-15 23:19:21,860 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:19:21,883 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:19:22,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:19:22,157 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:19:22,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:19:22,213 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:19:22,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:19:22 WrapperNode [2019-11-15 23:19:22,214 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:19:22,215 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:19:22,215 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:19:22,215 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:19:22,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:19:22" (1/1) ... [2019-11-15 23:19:22,233 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:19:22" (1/1) ... [2019-11-15 23:19:22,266 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:19:22,266 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:19:22,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:19:22,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:19:22,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:19:22" (1/1) ... [2019-11-15 23:19:22,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:19:22" (1/1) ... [2019-11-15 23:19:22,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:19:22" (1/1) ... [2019-11-15 23:19:22,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:19:22" (1/1) ... [2019-11-15 23:19:22,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:19:22" (1/1) ... [2019-11-15 23:19:22,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:19:22" (1/1) ... [2019-11-15 23:19:22,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:19:22" (1/1) ... [2019-11-15 23:19:22,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:19:22,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:19:22,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:19:22,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:19:22,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:19:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/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 [2019-11-15 23:19:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:19:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 23:19:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-15 23:19:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 23:19:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:19:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:19:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 23:19:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-15 23:19:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:19:22,829 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:19:22,830 INFO L284 CfgBuilder]: Removed 20 assume(true) statements. [2019-11-15 23:19:22,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:19:22 BoogieIcfgContainer [2019-11-15 23:19:22,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:19:22,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:19:22,833 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:19:22,836 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:19:22,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:19:21" (1/3) ... [2019-11-15 23:19:22,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4502f2fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:19:22, skipping insertion in model container [2019-11-15 23:19:22,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:19:22" (2/3) ... [2019-11-15 23:19:22,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4502f2fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:19:22, skipping insertion in model container [2019-11-15 23:19:22,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:19:22" (3/3) ... [2019-11-15 23:19:22,840 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121b.c [2019-11-15 23:19:22,852 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:19:22,860 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:19:22,875 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:19:22,903 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:19:22,904 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:19:22,904 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:19:22,904 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:19:22,904 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:19:22,904 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:19:22,904 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:19:22,905 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:19:22,923 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-15 23:19:22,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 23:19:22,930 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:19:22,931 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:19:22,934 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:19:22,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:19:22,940 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2019-11-15 23:19:22,950 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:19:22,950 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191086049] [2019-11-15 23:19:22,951 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:19:22,951 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:19:22,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:19:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:19:23,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:19:23,095 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191086049] [2019-11-15 23:19:23,095 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:19:23,096 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 23:19:23,096 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405950611] [2019-11-15 23:19:23,101 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 23:19:23,101 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:19:23,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 23:19:23,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 23:19:23,120 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-11-15 23:19:23,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:19:23,146 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2019-11-15 23:19:23,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 23:19:23,147 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-15 23:19:23,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:19:23,160 INFO L225 Difference]: With dead ends: 82 [2019-11-15 23:19:23,160 INFO L226 Difference]: Without dead ends: 39 [2019-11-15 23:19:23,164 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 23:19:23,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-15 23:19:23,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-15 23:19:23,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-15 23:19:23,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-11-15 23:19:23,206 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2019-11-15 23:19:23,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:19:23,207 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-11-15 23:19:23,207 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 23:19:23,207 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-11-15 23:19:23,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 23:19:23,208 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:19:23,208 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:19:23,208 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:19:23,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:19:23,209 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2019-11-15 23:19:23,209 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:19:23,209 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232349006] [2019-11-15 23:19:23,210 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:19:23,210 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:19:23,210 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:19:23,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:19:23,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:19:23,417 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:19:23,418 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 23:19:23,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:19:23 BoogieIcfgContainer [2019-11-15 23:19:23,475 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:19:23,476 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:19:23,476 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:19:23,477 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:19:23,477 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:19:22" (3/4) ... [2019-11-15 23:19:23,481 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 23:19:23,481 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:19:23,485 INFO L168 Benchmark]: Toolchain (without parser) took 1641.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -100.0 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2019-11-15 23:19:23,485 INFO L168 Benchmark]: CDTParser took 0.34 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. [2019-11-15 23:19:23,487 INFO L168 Benchmark]: CACSL2BoogieTranslator took 371.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -165.9 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:19:23,489 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-15 23:19:23,489 INFO L168 Benchmark]: Boogie Preprocessor took 39.98 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:19:23,491 INFO L168 Benchmark]: RCFGBuilder took 524.78 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: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. [2019-11-15 23:19:23,491 INFO L168 Benchmark]: TraceAbstraction took 642.78 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: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. [2019-11-15 23:19:23,492 INFO L168 Benchmark]: Witness Printer took 6.06 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. [2019-11-15 23:19:23,503 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 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 371.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -165.9 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.98 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 524.78 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: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 642.78 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: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. * Witness Printer took 6.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 108, overapproximation of someUnaryDOUBLEoperation at line 14, overapproximation of bitwiseAnd at line 30, overapproximation of someUnaryFLOAToperation at line 117, overapproximation of bitwiseXor at line 31, overapproximation of someBinaryArithmeticFLOAToperation at line 35. Possible FailurePath: [L12-L15] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={1:0}] [L116] float x = __VERIFIER_nondet_float(); [L117] float y = -0.0f; [L18] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [one_fmod=1, Zero_fmod={1:0}] [L21] ieee_float_shape_type gf_u; [L22] gf_u.value = (x) [L23] EXPR gf_u.word [L23] (hx) = gf_u.word [L26] ieee_float_shape_type gf_u; [L27] gf_u.value = (y) [L28] EXPR gf_u.word [L28] (hy) = gf_u.word [L30] sx = hx & 0x80000000 [L31] hx ^= sx [L32] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={1:0}] [L34] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L35] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={1:0}] [L118] float res = fmod_float(x, y); [L108] return x != x; VAL [one_fmod=1, Zero_fmod={1:0}] [L121] COND TRUE !isnan_float(res) [L122] __VERIFIER_error() VAL [one_fmod=1, Zero_fmod={1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 57 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=42occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 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-cad4683 [2019-11-15 23:19:25,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:19:25,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:19:25,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:19:25,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:19:25,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:19:25,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:19:25,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:19:25,720 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:19:25,721 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:19:25,722 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:19:25,723 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:19:25,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:19:25,724 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:19:25,725 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:19:25,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:19:25,726 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:19:25,727 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:19:25,729 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:19:25,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:19:25,732 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:19:25,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:19:25,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:19:25,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:19:25,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:19:25,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:19:25,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:19:25,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:19:25,738 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:19:25,739 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:19:25,739 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:19:25,740 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:19:25,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:19:25,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:19:25,742 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:19:25,742 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:19:25,743 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:19:25,743 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:19:25,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:19:25,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:19:25,744 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:19:25,745 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 23:19:25,757 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:19:25,757 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:19:25,758 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:19:25,758 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:19:25,759 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:19:25,759 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:19:25,759 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:19:25,759 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:19:25,759 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:19:25,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:19:25,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:19:25,760 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:19:25,760 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 23:19:25,760 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 23:19:25,760 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:19:25,761 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:19:25,761 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:19:25,761 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:19:25,761 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:19:25,761 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:19:25,762 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:19:25,762 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:19:25,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:19:25,762 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:19:25,762 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:19:25,763 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:19:25,763 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 23:19:25,763 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 23:19:25,763 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:19:25,763 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 23:19:25,763 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_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/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 -> 73dc70fc086318c728ead326eb8ef835fee9f9a2 [2019-11-15 23:19:25,794 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:19:25,803 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:19:25,813 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:19:25,815 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:19:25,815 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:19:25,816 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2019-11-15 23:19:25,879 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/bin/uautomizer/data/2ff74d1cf/0594339e19a14fa1928a26fd1c96f88c/FLAG4f6a76426 [2019-11-15 23:19:26,285 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:19:26,286 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2019-11-15 23:19:26,302 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/bin/uautomizer/data/2ff74d1cf/0594339e19a14fa1928a26fd1c96f88c/FLAG4f6a76426 [2019-11-15 23:19:26,630 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/bin/uautomizer/data/2ff74d1cf/0594339e19a14fa1928a26fd1c96f88c [2019-11-15 23:19:26,632 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:19:26,633 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:19:26,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:19:26,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:19:26,640 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:19:26,641 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:19:26" (1/1) ... [2019-11-15 23:19:26,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@286fb6cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:19:26, skipping insertion in model container [2019-11-15 23:19:26,644 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:19:26" (1/1) ... [2019-11-15 23:19:26,652 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:19:26,688 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:19:26,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:19:26,910 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:19:26,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:19:27,103 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:19:27,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:19:27 WrapperNode [2019-11-15 23:19:27,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:19:27,105 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:19:27,105 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:19:27,106 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:19:27,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:19:27" (1/1) ... [2019-11-15 23:19:27,143 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:19:27" (1/1) ... [2019-11-15 23:19:27,190 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:19:27,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:19:27,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:19:27,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:19:27,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:19:27" (1/1) ... [2019-11-15 23:19:27,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:19:27" (1/1) ... [2019-11-15 23:19:27,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:19:27" (1/1) ... [2019-11-15 23:19:27,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:19:27" (1/1) ... [2019-11-15 23:19:27,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:19:27" (1/1) ... [2019-11-15 23:19:27,221 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:19:27" (1/1) ... [2019-11-15 23:19:27,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:19:27" (1/1) ... [2019-11-15 23:19:27,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:19:27,234 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:19:27,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:19:27,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:19:27,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:19:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/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 [2019-11-15 23:19:27,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-11-15 23:19:27,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:19:27,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-15 23:19:27,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 23:19:27,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:19:27,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:19:27,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-15 23:19:27,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 23:19:27,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:19:28,663 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:19:28,663 INFO L284 CfgBuilder]: Removed 20 assume(true) statements. [2019-11-15 23:19:28,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:19:28 BoogieIcfgContainer [2019-11-15 23:19:28,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:19:28,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:19:28,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:19:28,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:19:28,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:19:26" (1/3) ... [2019-11-15 23:19:28,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f549012 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:19:28, skipping insertion in model container [2019-11-15 23:19:28,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:19:27" (2/3) ... [2019-11-15 23:19:28,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f549012 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:19:28, skipping insertion in model container [2019-11-15 23:19:28,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:19:28" (3/3) ... [2019-11-15 23:19:28,674 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121b.c [2019-11-15 23:19:28,684 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:19:28,691 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:19:28,702 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:19:28,729 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:19:28,730 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:19:28,730 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:19:28,730 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:19:28,731 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:19:28,731 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:19:28,731 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:19:28,731 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:19:28,748 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-15 23:19:28,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 23:19:28,756 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:19:28,757 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:19:28,759 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:19:28,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:19:28,765 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2019-11-15 23:19:28,777 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:19:28,777 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787772287] [2019-11-15 23:19:28,778 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/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 [2019-11-15 23:19:29,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:19:29,135 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 23:19:29,140 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:19:29,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:19:29,153 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:19:29,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:19:29,158 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1787772287] [2019-11-15 23:19:29,159 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:19:29,159 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 23:19:29,160 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977942283] [2019-11-15 23:19:29,164 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 23:19:29,164 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:19:29,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 23:19:29,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 23:19:29,178 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-11-15 23:19:29,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:19:29,199 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2019-11-15 23:19:29,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 23:19:29,201 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-15 23:19:29,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:19:29,214 INFO L225 Difference]: With dead ends: 82 [2019-11-15 23:19:29,215 INFO L226 Difference]: Without dead ends: 39 [2019-11-15 23:19:29,218 INFO L600 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 [2019-11-15 23:19:29,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-15 23:19:29,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-15 23:19:29,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-15 23:19:29,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-11-15 23:19:29,259 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2019-11-15 23:19:29,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:19:29,260 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-11-15 23:19:29,260 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 23:19:29,260 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-11-15 23:19:29,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 23:19:29,261 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:19:29,262 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:19:29,478 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 23:19:29,478 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:19:29,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:19:29,479 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2019-11-15 23:19:29,479 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:19:29,480 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [611910492] [2019-11-15 23:19:29,480 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/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 [2019-11-15 23:19:29,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:19:29,821 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-15 23:19:29,823 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:19:31,350 WARN L191 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2019-11-15 23:19:31,354 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 23:19:32,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:19:32,817 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:19:36,886 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (not (let ((.cse0 (let ((.cse1 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_float_~x c_ULTIMATE.start_fmod_float_~y))) (fp.div roundNearestTiesToEven .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2019-11-15 23:19:37,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:19:37,022 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [611910492] [2019-11-15 23:19:37,023 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:19:37,023 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-15 23:19:37,023 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10078243] [2019-11-15 23:19:37,033 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-15 23:19:37,033 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:19:37,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-15 23:19:37,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=54, Unknown=1, NotChecked=14, Total=90 [2019-11-15 23:19:37,034 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 10 states. [2019-11-15 23:19:42,018 WARN L191 SmtUtils]: Spent 664.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 8 [2019-11-15 23:19:43,520 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 11 [2019-11-15 23:19:44,913 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 19 DAG size of output: 13 [2019-11-15 23:19:44,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:19:44,950 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2019-11-15 23:19:44,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:19:44,951 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-11-15 23:19:44,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:19:44,952 INFO L225 Difference]: With dead ends: 44 [2019-11-15 23:19:44,952 INFO L226 Difference]: Without dead ends: 39 [2019-11-15 23:19:44,953 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=45, Invalid=90, Unknown=1, NotChecked=20, Total=156 [2019-11-15 23:19:44,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-15 23:19:44,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-15 23:19:44,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-15 23:19:44,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2019-11-15 23:19:44,959 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2019-11-15 23:19:44,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:19:44,960 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2019-11-15 23:19:44,960 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-15 23:19:44,960 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2019-11-15 23:19:44,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-15 23:19:44,961 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:19:44,961 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:19:45,178 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 23:19:45,178 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:19:45,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:19:45,178 INFO L82 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2019-11-15 23:19:45,179 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:19:45,179 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [589163747] [2019-11-15 23:19:45,179 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/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 [2019-11-15 23:19:45,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:19:45,267 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 23:19:45,269 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:19:45,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:19:45,319 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:19:45,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:19:45,400 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [589163747] [2019-11-15 23:19:45,401 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:19:45,401 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-15 23:19:45,401 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660446651] [2019-11-15 23:19:45,401 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:19:45,402 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:19:45,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:19:45,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:19:45,402 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand 8 states. [2019-11-15 23:19:45,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:19:45,480 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2019-11-15 23:19:45,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 23:19:45,480 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2019-11-15 23:19:45,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:19:45,481 INFO L225 Difference]: With dead ends: 39 [2019-11-15 23:19:45,481 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 23:19:45,482 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2019-11-15 23:19:45,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 23:19:45,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 23:19:45,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 23:19:45,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 23:19:45,483 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-11-15 23:19:45,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:19:45,483 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:19:45,483 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:19:45,484 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 23:19:45,484 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 23:19:45,684 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-15 23:19:45,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 23:19:45,792 INFO L446 ceAbstractionStarter]: At program point L126(lines 110 127) the Hoare annotation is: true [2019-11-15 23:19:45,792 INFO L443 ceAbstractionStarter]: For program point L52-1(lines 17 105) no Hoare annotation was computed. [2019-11-15 23:19:45,792 INFO L443 ceAbstractionStarter]: For program point L36(lines 36 37) no Hoare annotation was computed. [2019-11-15 23:19:45,792 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 23:19:45,792 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 23:19:45,792 INFO L443 ceAbstractionStarter]: For program point L86(lines 86 103) no Hoare annotation was computed. [2019-11-15 23:19:45,792 INFO L443 ceAbstractionStarter]: For program point L20-1(lines 20 24) no Hoare annotation was computed. [2019-11-15 23:19:45,793 INFO L439 ceAbstractionStarter]: At program point L20-2(lines 20 24) the Hoare annotation is: (= ULTIMATE.start_fmod_float_~y (fp.neg (_ +zero 8 24))) [2019-11-15 23:19:45,793 INFO L443 ceAbstractionStarter]: For program point L70(lines 70 71) no Hoare annotation was computed. [2019-11-15 23:19:45,793 INFO L443 ceAbstractionStarter]: For program point L46(lines 17 105) no Hoare annotation was computed. [2019-11-15 23:19:45,793 INFO L439 ceAbstractionStarter]: At program point L104(lines 17 105) the Hoare annotation is: (and (not (fp.eq |ULTIMATE.start_fmod_float_#res| |ULTIMATE.start_fmod_float_#res|)) (= ULTIMATE.start_fmod_float_~y (fp.neg (_ +zero 8 24)))) [2019-11-15 23:19:45,793 INFO L443 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2019-11-15 23:19:45,793 INFO L443 ceAbstractionStarter]: For program point L121(lines 121 124) no Hoare annotation was computed. [2019-11-15 23:19:45,793 INFO L443 ceAbstractionStarter]: For program point L88-1(lines 88 92) no Hoare annotation was computed. [2019-11-15 23:19:45,793 INFO L439 ceAbstractionStarter]: At program point L88-2(lines 88 92) the Hoare annotation is: false [2019-11-15 23:19:45,794 INFO L443 ceAbstractionStarter]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2019-11-15 23:19:45,794 INFO L439 ceAbstractionStarter]: At program point L47-3(lines 47 48) the Hoare annotation is: false [2019-11-15 23:19:45,794 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 122) no Hoare annotation was computed. [2019-11-15 23:19:45,794 INFO L443 ceAbstractionStarter]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2019-11-15 23:19:45,794 INFO L439 ceAbstractionStarter]: At program point L97-2(lines 97 101) the Hoare annotation is: false [2019-11-15 23:19:45,794 INFO L443 ceAbstractionStarter]: For program point L97-3(lines 97 101) no Hoare annotation was computed. [2019-11-15 23:19:45,794 INFO L443 ceAbstractionStarter]: For program point L122(line 122) no Hoare annotation was computed. [2019-11-15 23:19:45,795 INFO L443 ceAbstractionStarter]: For program point L40(lines 40 44) no Hoare annotation was computed. [2019-11-15 23:19:45,795 INFO L443 ceAbstractionStarter]: For program point L40-1(lines 17 105) no Hoare annotation was computed. [2019-11-15 23:19:45,795 INFO L443 ceAbstractionStarter]: For program point L65-1(lines 65 74) no Hoare annotation was computed. [2019-11-15 23:19:45,795 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-15 23:19:45,795 INFO L443 ceAbstractionStarter]: For program point L65-3(lines 65 74) no Hoare annotation was computed. [2019-11-15 23:19:45,795 INFO L439 ceAbstractionStarter]: At program point L82-2(lines 82 85) the Hoare annotation is: false [2019-11-15 23:19:45,795 INFO L443 ceAbstractionStarter]: For program point L82-3(lines 17 105) no Hoare annotation was computed. [2019-11-15 23:19:45,795 INFO L443 ceAbstractionStarter]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2019-11-15 23:19:45,795 INFO L439 ceAbstractionStarter]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2019-11-15 23:19:45,796 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 23:19:45,796 INFO L443 ceAbstractionStarter]: For program point L25(lines 25 29) no Hoare annotation was computed. [2019-11-15 23:19:45,796 INFO L443 ceAbstractionStarter]: For program point L58-1(lines 58 63) no Hoare annotation was computed. [2019-11-15 23:19:45,796 INFO L443 ceAbstractionStarter]: For program point L25-1(lines 17 105) no Hoare annotation was computed. [2019-11-15 23:19:45,796 INFO L443 ceAbstractionStarter]: For program point L25-2(lines 25 29) no Hoare annotation was computed. [2019-11-15 23:19:45,796 INFO L439 ceAbstractionStarter]: At program point L108(line 108) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq |ULTIMATE.start_fmod_float_#res| |ULTIMATE.start_fmod_float_#res|)) (= ULTIMATE.start_fmod_float_~y (fp.neg (_ +zero 8 24)))) [2019-11-15 23:19:45,796 INFO L443 ceAbstractionStarter]: For program point L67(lines 67 73) no Hoare annotation was computed. [2019-11-15 23:19:45,797 INFO L443 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2019-11-15 23:19:45,797 INFO L439 ceAbstractionStarter]: At program point L67-2(lines 65 74) the Hoare annotation is: false [2019-11-15 23:19:45,797 INFO L443 ceAbstractionStarter]: For program point L76(lines 76 78) no Hoare annotation was computed. [2019-11-15 23:19:45,797 INFO L443 ceAbstractionStarter]: For program point L76-2(lines 17 105) no Hoare annotation was computed. [2019-11-15 23:19:45,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:19:45 BoogieIcfgContainer [2019-11-15 23:19:45,828 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:19:45,828 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:19:45,829 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:19:45,829 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:19:45,830 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:19:28" (3/4) ... [2019-11-15 23:19:45,833 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 23:19:45,851 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-15 23:19:45,852 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-15 23:19:45,929 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_09b6b3bd-699b-44d4-8e3f-46cea9c493e8/bin/uautomizer/witness.graphml [2019-11-15 23:19:45,931 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:19:45,933 INFO L168 Benchmark]: Toolchain (without parser) took 19299.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 951.0 MB in the beginning and 999.8 MB in the end (delta: -48.8 MB). Peak memory consumption was 112.2 MB. Max. memory is 11.5 GB. [2019-11-15 23:19:45,933 INFO L168 Benchmark]: CDTParser took 1.00 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:19:45,934 INFO L168 Benchmark]: CACSL2BoogieTranslator took 469.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -197.8 MB). Peak memory consumption was 29.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:19:45,934 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.45 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. [2019-11-15 23:19:45,935 INFO L168 Benchmark]: Boogie Preprocessor took 43.31 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. [2019-11-15 23:19:45,935 INFO L168 Benchmark]: RCFGBuilder took 1430.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.9 MB). Peak memory consumption was 39.9 MB. Max. memory is 11.5 GB. [2019-11-15 23:19:45,936 INFO L168 Benchmark]: TraceAbstraction took 17161.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 102.2 MB). Peak memory consumption was 102.2 MB. Max. memory is 11.5 GB. [2019-11-15 23:19:45,936 INFO L168 Benchmark]: Witness Printer took 102.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 999.8 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-15 23:19:45,945 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.00 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 469.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -197.8 MB). Peak memory consumption was 29.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 85.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.31 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1430.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.9 MB). Peak memory consumption was 39.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17161.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 102.2 MB). Peak memory consumption was 102.2 MB. Max. memory is 11.5 GB. * Witness Printer took 102.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 999.8 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 122]: 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: 97]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 108]: Loop Invariant Derived loop invariant: (1bv32 == \result && !~fp.eq~FLOAT(\result, \result)) && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: !~fp.eq~FLOAT(\result, \result) && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: SAFE, OverallTime: 17.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 112 SDtfs, 56 SDslu, 202 SDs, 0 SdLazy, 32 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 1 IntricatePredicates, 2 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 13.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 32 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 7.3s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 11 QuantifiedInterpolants, 3851 SizeOfPredicates, 15 NumberOfNonLiveVariables, 148 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...