./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0920b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a88cd1d8-d94a-476f-854c-0ca70d1085eb/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a88cd1d8-d94a-476f-854c-0ca70d1085eb/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a88cd1d8-d94a-476f-854c-0ca70d1085eb/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a88cd1d8-d94a-476f-854c-0ca70d1085eb/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0920b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a88cd1d8-d94a-476f-854c-0ca70d1085eb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a88cd1d8-d94a-476f-854c-0ca70d1085eb/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash df7585bdb7f55dd146660d2fca5142563fdf3df8 .................................................................................................................................................................................................................................................................................................. 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_a88cd1d8-d94a-476f-854c-0ca70d1085eb/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a88cd1d8-d94a-476f-854c-0ca70d1085eb/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a88cd1d8-d94a-476f-854c-0ca70d1085eb/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a88cd1d8-d94a-476f-854c-0ca70d1085eb/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0920b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a88cd1d8-d94a-476f-854c-0ca70d1085eb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a88cd1d8-d94a-476f-854c-0ca70d1085eb/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash df7585bdb7f55dd146660d2fca5142563fdf3df8 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 19:09:59,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 19:09:59,838 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 19:09:59,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 19:09:59,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 19:09:59,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 19:09:59,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 19:09:59,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 19:09:59,851 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 19:09:59,852 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 19:09:59,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 19:09:59,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 19:09:59,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 19:09:59,854 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 19:09:59,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 19:09:59,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 19:09:59,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 19:09:59,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 19:09:59,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 19:09:59,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 19:09:59,861 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 19:09:59,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 19:09:59,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 19:09:59,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 19:09:59,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 19:09:59,864 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 19:09:59,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 19:09:59,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 19:09:59,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 19:09:59,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 19:09:59,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 19:09:59,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 19:09:59,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 19:09:59,867 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 19:09:59,868 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 19:09:59,868 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 19:09:59,868 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 19:09:59,868 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 19:09:59,868 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 19:09:59,869 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 19:09:59,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 19:09:59,870 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a88cd1d8-d94a-476f-854c-0ca70d1085eb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 19:09:59,879 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 19:09:59,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 19:09:59,880 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 19:09:59,880 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 19:09:59,880 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 19:09:59,880 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 19:09:59,880 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 19:09:59,880 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 19:09:59,880 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 19:09:59,880 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 19:09:59,880 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 19:09:59,881 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 19:09:59,881 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 19:09:59,881 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 19:09:59,881 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 19:09:59,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 19:09:59,881 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 19:09:59,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 19:09:59,882 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 19:09:59,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 19:09:59,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 19:09:59,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 19:09:59,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 19:09:59,882 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 19:09:59,882 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 19:09:59,882 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 19:09:59,882 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 19:09:59,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 19:09:59,883 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 19:09:59,883 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 19:09:59,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 19:09:59,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 19:09:59,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 19:09:59,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 19:09:59,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 19:09:59,884 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 19:09:59,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 19:09:59,884 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 19:09:59,884 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 19:09:59,884 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 19:09:59,884 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_a88cd1d8-d94a-476f-854c-0ca70d1085eb/bin/utaipan 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 -> Taipan 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 -> df7585bdb7f55dd146660d2fca5142563fdf3df8 [2019-12-07 19:09:59,993 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 19:10:00,001 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 19:10:00,003 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 19:10:00,004 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 19:10:00,004 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 19:10:00,005 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a88cd1d8-d94a-476f-854c-0ca70d1085eb/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0920b.c [2019-12-07 19:10:00,041 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a88cd1d8-d94a-476f-854c-0ca70d1085eb/bin/utaipan/data/0601a1af5/39967d71b66a4919a32ad4e111049f13/FLAGdb2c24718 [2019-12-07 19:10:00,401 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 19:10:00,401 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a88cd1d8-d94a-476f-854c-0ca70d1085eb/sv-benchmarks/c/float-newlib/float_req_bl_0920b.c [2019-12-07 19:10:00,407 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a88cd1d8-d94a-476f-854c-0ca70d1085eb/bin/utaipan/data/0601a1af5/39967d71b66a4919a32ad4e111049f13/FLAGdb2c24718 [2019-12-07 19:10:00,417 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a88cd1d8-d94a-476f-854c-0ca70d1085eb/bin/utaipan/data/0601a1af5/39967d71b66a4919a32ad4e111049f13 [2019-12-07 19:10:00,419 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 19:10:00,419 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 19:10:00,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 19:10:00,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 19:10:00,423 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 19:10:00,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:10:00" (1/1) ... [2019-12-07 19:10:00,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17574348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:10:00, skipping insertion in model container [2019-12-07 19:10:00,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:10:00" (1/1) ... [2019-12-07 19:10:00,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 19:10:00,446 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:10:00,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:10:00,615 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 19:10:00,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:10:00,652 INFO L208 MainTranslator]: Completed translation [2019-12-07 19:10:00,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:10:00 WrapperNode [2019-12-07 19:10:00,652 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 19:10:00,653 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 19:10:00,653 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 19:10:00,653 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 19:10:00,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:10:00" (1/1) ... [2019-12-07 19:10:00,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:10:00" (1/1) ... [2019-12-07 19:10:00,681 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 19:10:00,682 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 19:10:00,682 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 19:10:00,682 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 19:10:00,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:10:00" (1/1) ... [2019-12-07 19:10:00,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:10:00" (1/1) ... [2019-12-07 19:10:00,690 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:10:00" (1/1) ... [2019-12-07 19:10:00,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:10:00" (1/1) ... [2019-12-07 19:10:00,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:10:00" (1/1) ... [2019-12-07 19:10:00,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:10:00" (1/1) ... [2019-12-07 19:10:00,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:10:00" (1/1) ... [2019-12-07 19:10:00,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 19:10:00,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 19:10:00,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 19:10:00,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 19:10:00,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:10:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a88cd1d8-d94a-476f-854c-0ca70d1085eb/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 19:10:00,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 19:10:00,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 19:10:00,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 19:10:00,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 19:10:00,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 19:10:00,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 19:10:00,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 19:10:00,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 19:10:01,002 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 19:10:01,002 INFO L287 CfgBuilder]: Removed 14 assume(true) statements. [2019-12-07 19:10:01,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:10:01 BoogieIcfgContainer [2019-12-07 19:10:01,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 19:10:01,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 19:10:01,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 19:10:01,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 19:10:01,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 07:10:00" (1/3) ... [2019-12-07 19:10:01,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bb988dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:10:01, skipping insertion in model container [2019-12-07 19:10:01,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:10:00" (2/3) ... [2019-12-07 19:10:01,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bb988dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:10:01, skipping insertion in model container [2019-12-07 19:10:01,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:10:01" (3/3) ... [2019-12-07 19:10:01,010 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920b.c [2019-12-07 19:10:01,018 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 19:10:01,024 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 19:10:01,033 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 19:10:01,048 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 19:10:01,048 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 19:10:01,048 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 19:10:01,048 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 19:10:01,048 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 19:10:01,048 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 19:10:01,049 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 19:10:01,049 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 19:10:01,057 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-12-07 19:10:01,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 19:10:01,061 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:10:01,062 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:10:01,062 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:10:01,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:10:01,065 INFO L82 PathProgramCache]: Analyzing trace with hash -1549312559, now seen corresponding path program 1 times [2019-12-07 19:10:01,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 19:10:01,071 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940490734] [2019-12-07 19:10:01,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:10:01,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:10:01,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:10:01,148 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940490734] [2019-12-07 19:10:01,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:10:01,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 19:10:01,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537445493] [2019-12-07 19:10:01,152 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 19:10:01,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 19:10:01,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 19:10:01,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 19:10:01,162 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2019-12-07 19:10:01,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:10:01,173 INFO L93 Difference]: Finished difference Result 39 states and 59 transitions. [2019-12-07 19:10:01,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 19:10:01,174 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-12-07 19:10:01,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:10:01,180 INFO L225 Difference]: With dead ends: 39 [2019-12-07 19:10:01,180 INFO L226 Difference]: Without dead ends: 18 [2019-12-07 19:10:01,182 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 19:10:01,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-12-07 19:10:01,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-12-07 19:10:01,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-07 19:10:01,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2019-12-07 19:10:01,204 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 7 [2019-12-07 19:10:01,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:10:01,204 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-12-07 19:10:01,204 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 19:10:01,204 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2019-12-07 19:10:01,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 19:10:01,204 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:10:01,204 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:10:01,204 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:10:01,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:10:01,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1444622012, now seen corresponding path program 1 times [2019-12-07 19:10:01,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 19:10:01,205 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717399697] [2019-12-07 19:10:01,205 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:10:01,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:10:01,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:10:01,260 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 19:10:01,260 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 19:10:01,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 07:10:01 BoogieIcfgContainer [2019-12-07 19:10:01,280 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 19:10:01,280 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 19:10:01,280 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 19:10:01,280 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 19:10:01,280 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:10:01" (3/4) ... [2019-12-07 19:10:01,283 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 19:10:01,283 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 19:10:01,284 INFO L168 Benchmark]: Toolchain (without parser) took 864.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -116.1 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2019-12-07 19:10:01,284 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:10:01,285 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -182.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-12-07 19:10:01,285 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.86 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 19:10:01,286 INFO L168 Benchmark]: Boogie Preprocessor took 20.80 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. [2019-12-07 19:10:01,286 INFO L168 Benchmark]: RCFGBuilder took 300.73 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: 38.0 MB). Peak memory consumption was 38.0 MB. Max. memory is 11.5 GB. [2019-12-07 19:10:01,286 INFO L168 Benchmark]: TraceAbstraction took 275.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2019-12-07 19:10:01,287 INFO L168 Benchmark]: Witness Printer took 2.74 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. [2019-12-07 19:10:01,289 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 232.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -182.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.86 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.80 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 300.73 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: 38.0 MB). Peak memory consumption was 38.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 275.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * Witness Printer took 2.74 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: 125]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 111, overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 43. Possible FailurePath: [L24-L28] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L30] static const float zero_log = 0.0; [L120] float x = -1.0f / 0.0f; [L33] float hfsq, f, s, z, R, w, t1, t2, dk; [L34] __int32_t k, ix, i, j; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L37] ieee_float_shape_type gf_u; [L38] gf_u.value = (x) [L39] EXPR gf_u.word [L39] (ix) = gf_u.word [L42] k = 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L43] COND TRUE ((ix & 0x7fffffff) == 0) [L44] return -two25_log / zero_log; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L121] float res = __ieee754_logf(x); [L111] return x != x; [L124] COND TRUE !isnan_float(res) [L125] __VERIFIER_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 23 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=20occurred 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, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 19:10:02,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 19:10:02,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 19:10:02,642 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 19:10:02,643 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 19:10:02,643 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 19:10:02,644 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 19:10:02,646 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 19:10:02,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 19:10:02,648 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 19:10:02,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 19:10:02,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 19:10:02,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 19:10:02,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 19:10:02,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 19:10:02,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 19:10:02,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 19:10:02,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 19:10:02,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 19:10:02,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 19:10:02,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 19:10:02,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 19:10:02,658 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 19:10:02,659 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 19:10:02,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 19:10:02,661 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 19:10:02,661 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 19:10:02,662 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 19:10:02,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 19:10:02,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 19:10:02,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 19:10:02,663 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 19:10:02,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 19:10:02,664 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 19:10:02,665 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 19:10:02,665 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 19:10:02,666 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 19:10:02,666 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 19:10:02,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 19:10:02,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 19:10:02,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 19:10:02,668 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a88cd1d8-d94a-476f-854c-0ca70d1085eb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 19:10:02,678 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 19:10:02,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 19:10:02,679 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 19:10:02,679 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 19:10:02,679 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 19:10:02,679 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 19:10:02,679 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 19:10:02,679 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 19:10:02,679 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 19:10:02,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 19:10:02,680 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 19:10:02,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 19:10:02,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 19:10:02,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 19:10:02,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 19:10:02,681 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 19:10:02,681 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 19:10:02,681 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 19:10:02,681 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 19:10:02,681 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 19:10:02,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 19:10:02,682 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 19:10:02,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 19:10:02,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 19:10:02,682 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 19:10:02,682 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 19:10:02,682 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 19:10:02,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 19:10:02,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 19:10:02,683 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 19:10:02,683 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 19:10:02,683 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 19:10:02,683 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 19:10:02,683 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 19:10:02,684 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 19:10:02,684 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 19:10:02,684 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_a88cd1d8-d94a-476f-854c-0ca70d1085eb/bin/utaipan 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 -> Taipan 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 -> df7585bdb7f55dd146660d2fca5142563fdf3df8 [2019-12-07 19:10:02,855 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 19:10:02,864 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 19:10:02,866 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 19:10:02,867 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 19:10:02,867 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 19:10:02,868 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a88cd1d8-d94a-476f-854c-0ca70d1085eb/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0920b.c [2019-12-07 19:10:02,909 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a88cd1d8-d94a-476f-854c-0ca70d1085eb/bin/utaipan/data/b33c489e0/3edfdf54d8b440e09d86a1490020954e/FLAGb6b8305ef [2019-12-07 19:10:03,249 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 19:10:03,249 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a88cd1d8-d94a-476f-854c-0ca70d1085eb/sv-benchmarks/c/float-newlib/float_req_bl_0920b.c [2019-12-07 19:10:03,254 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a88cd1d8-d94a-476f-854c-0ca70d1085eb/bin/utaipan/data/b33c489e0/3edfdf54d8b440e09d86a1490020954e/FLAGb6b8305ef [2019-12-07 19:10:03,263 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a88cd1d8-d94a-476f-854c-0ca70d1085eb/bin/utaipan/data/b33c489e0/3edfdf54d8b440e09d86a1490020954e [2019-12-07 19:10:03,265 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 19:10:03,265 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 19:10:03,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 19:10:03,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 19:10:03,268 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 19:10:03,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:10:03" (1/1) ... [2019-12-07 19:10:03,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41944eff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:10:03, skipping insertion in model container [2019-12-07 19:10:03,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:10:03" (1/1) ... [2019-12-07 19:10:03,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 19:10:03,289 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:10:03,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:10:03,419 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 19:10:03,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:10:03,498 INFO L208 MainTranslator]: Completed translation [2019-12-07 19:10:03,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:10:03 WrapperNode [2019-12-07 19:10:03,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 19:10:03,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 19:10:03,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 19:10:03,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 19:10:03,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:10:03" (1/1) ... [2019-12-07 19:10:03,512 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:10:03" (1/1) ... [2019-12-07 19:10:03,529 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 19:10:03,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 19:10:03,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 19:10:03,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 19:10:03,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:10:03" (1/1) ... [2019-12-07 19:10:03,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:10:03" (1/1) ... [2019-12-07 19:10:03,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:10:03" (1/1) ... [2019-12-07 19:10:03,540 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:10:03" (1/1) ... [2019-12-07 19:10:03,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:10:03" (1/1) ... [2019-12-07 19:10:03,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:10:03" (1/1) ... [2019-12-07 19:10:03,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:10:03" (1/1) ... [2019-12-07 19:10:03,555 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 19:10:03,556 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 19:10:03,556 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 19:10:03,556 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 19:10:03,557 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:10:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a88cd1d8-d94a-476f-854c-0ca70d1085eb/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 19:10:03,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 19:10:03,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-12-07 19:10:03,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 19:10:03,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 19:10:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 19:10:03,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-12-07 19:10:03,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 19:10:03,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 19:10:15,199 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 19:10:15,200 INFO L287 CfgBuilder]: Removed 14 assume(true) statements. [2019-12-07 19:10:15,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:10:15 BoogieIcfgContainer [2019-12-07 19:10:15,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 19:10:15,201 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 19:10:15,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 19:10:15,204 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 19:10:15,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 07:10:03" (1/3) ... [2019-12-07 19:10:15,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58147b95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:10:15, skipping insertion in model container [2019-12-07 19:10:15,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:10:03" (2/3) ... [2019-12-07 19:10:15,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58147b95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:10:15, skipping insertion in model container [2019-12-07 19:10:15,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:10:15" (3/3) ... [2019-12-07 19:10:15,206 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920b.c [2019-12-07 19:10:15,213 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 19:10:15,217 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 19:10:15,224 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 19:10:15,238 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 19:10:15,238 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 19:10:15,238 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 19:10:15,238 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 19:10:15,238 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 19:10:15,238 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 19:10:15,239 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 19:10:15,239 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 19:10:15,247 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-12-07 19:10:15,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 19:10:15,252 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:10:15,252 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:10:15,253 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:10:15,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:10:15,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1904103824, now seen corresponding path program 1 times [2019-12-07 19:10:15,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:10:15,266 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1609116938] [2019-12-07 19:10:15,267 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a88cd1d8-d94a-476f-854c-0ca70d1085eb/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 19:10:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:10:15,725 INFO L264 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 19:10:15,729 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:10:15,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:10:15,739 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:10:15,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:10:15,742 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1609116938] [2019-12-07 19:10:15,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:10:15,743 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 19:10:15,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543090012] [2019-12-07 19:10:15,746 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 19:10:15,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:10:15,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 19:10:15,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 19:10:15,756 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2019-12-07 19:10:15,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:10:15,768 INFO L93 Difference]: Finished difference Result 58 states and 92 transitions. [2019-12-07 19:10:15,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 19:10:15,769 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-12-07 19:10:15,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:10:15,776 INFO L225 Difference]: With dead ends: 58 [2019-12-07 19:10:15,776 INFO L226 Difference]: Without dead ends: 27 [2019-12-07 19:10:15,778 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 19:10:15,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-07 19:10:15,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-07 19:10:15,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-07 19:10:15,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-12-07 19:10:15,801 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 9 [2019-12-07 19:10:15,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:10:15,802 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-12-07 19:10:15,802 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 19:10:15,802 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-12-07 19:10:15,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 19:10:15,802 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:10:15,802 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:10:16,003 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 19:10:16,004 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:10:16,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:10:16,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1484246989, now seen corresponding path program 1 times [2019-12-07 19:10:16,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:10:16,005 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [907678200] [2019-12-07 19:10:16,006 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a88cd1d8-d94a-476f-854c-0ca70d1085eb/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 19:10:16,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:10:16,496 INFO L264 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 19:10:16,499 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:10:16,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:10:16,557 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:10:16,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:10:16,613 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [907678200] [2019-12-07 19:10:16,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:10:16,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 19:10:16,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302610336] [2019-12-07 19:10:16,615 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 19:10:16,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:10:16,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 19:10:16,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 19:10:16,615 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 6 states. [2019-12-07 19:10:16,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:10:16,975 INFO L93 Difference]: Finished difference Result 32 states and 41 transitions. [2019-12-07 19:10:16,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 19:10:16,976 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-07 19:10:16,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:10:16,977 INFO L225 Difference]: With dead ends: 32 [2019-12-07 19:10:16,977 INFO L226 Difference]: Without dead ends: 12 [2019-12-07 19:10:16,978 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 19:10:16,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-07 19:10:16,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-07 19:10:16,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-07 19:10:16,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-12-07 19:10:16,981 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 10 [2019-12-07 19:10:16,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:10:16,981 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-12-07 19:10:16,981 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 19:10:16,981 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-12-07 19:10:16,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 19:10:16,982 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:10:16,982 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:10:17,182 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 19:10:17,183 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:10:17,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:10:17,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1245975282, now seen corresponding path program 1 times [2019-12-07 19:10:17,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:10:17,185 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1956404471] [2019-12-07 19:10:17,185 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a88cd1d8-d94a-476f-854c-0ca70d1085eb/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 19:10:17,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:10:17,695 INFO L264 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-07 19:10:17,697 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:10:17,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:10:17,778 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:10:22,366 WARN L192 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2019-12-07 19:10:22,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:10:22,380 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1956404471] [2019-12-07 19:10:22,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:10:22,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-12-07 19:10:22,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957635455] [2019-12-07 19:10:22,381 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 19:10:22,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:10:22,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 19:10:22,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-12-07 19:10:22,381 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 10 states. [2019-12-07 19:10:22,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:10:22,953 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2019-12-07 19:10:22,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 19:10:22,953 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2019-12-07 19:10:22,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:10:22,954 INFO L225 Difference]: With dead ends: 12 [2019-12-07 19:10:22,954 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 19:10:22,955 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2019-12-07 19:10:22,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 19:10:22,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 19:10:22,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 19:10:22,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 19:10:22,956 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-07 19:10:22,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:10:22,956 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 19:10:22,956 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 19:10:22,956 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 19:10:22,956 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 19:10:23,157 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 19:10:23,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 19:10:23,363 INFO L246 CegarLoopResult]: For program point L97(lines 97 101) no Hoare annotation was computed. [2019-12-07 19:10:23,363 INFO L246 CegarLoopResult]: For program point L52-1(lines 52 56) no Hoare annotation was computed. [2019-12-07 19:10:23,363 INFO L242 CegarLoopResult]: At program point L52-2(lines 52 56) the Hoare annotation is: false [2019-12-07 19:10:23,364 INFO L242 CegarLoopResult]: At program point L106(lines 32 108) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) ULTIMATE.start___ieee754_logf_~x) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 30 23) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 22 0) ULTIMATE.start___ieee754_logf_~ix~1)))) (= currentRoundingMode roundNearestTiesToEven) (= |ULTIMATE.start___ieee754_logf_#res| (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))))) [2019-12-07 19:10:23,364 INFO L246 CegarLoopResult]: For program point L69(lines 69 76) no Hoare annotation was computed. [2019-12-07 19:10:23,364 INFO L246 CegarLoopResult]: For program point L36-1(lines 36 40) no Hoare annotation was computed. [2019-12-07 19:10:23,364 INFO L242 CegarLoopResult]: At program point L36-2(lines 36 40) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) ULTIMATE.start___ieee754_logf_~x) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 19:10:23,364 INFO L246 CegarLoopResult]: For program point L36-3(lines 36 40) no Hoare annotation was computed. [2019-12-07 19:10:23,364 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 19:10:23,364 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 19:10:23,364 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 19:10:23,364 INFO L246 CegarLoopResult]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2019-12-07 19:10:23,365 INFO L242 CegarLoopResult]: At program point L61-2(lines 61 65) the Hoare annotation is: false [2019-12-07 19:10:23,365 INFO L246 CegarLoopResult]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2019-12-07 19:10:23,365 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 125) no Hoare annotation was computed. [2019-12-07 19:10:23,365 INFO L246 CegarLoopResult]: For program point L49(lines 49 57) no Hoare annotation was computed. [2019-12-07 19:10:23,365 INFO L246 CegarLoopResult]: For program point L49-1(lines 49 57) no Hoare annotation was computed. [2019-12-07 19:10:23,365 INFO L242 CegarLoopResult]: At program point L111(line 111) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) ULTIMATE.start___ieee754_logf_~x) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 30 23) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 22 0) ULTIMATE.start___ieee754_logf_~ix~1)))) (= currentRoundingMode roundNearestTiesToEven) (= |ULTIMATE.start___ieee754_logf_#res| (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))))) [2019-12-07 19:10:23,365 INFO L246 CegarLoopResult]: For program point L78(lines 78 83) no Hoare annotation was computed. [2019-12-07 19:10:23,365 INFO L246 CegarLoopResult]: For program point L45(lines 45 46) no Hoare annotation was computed. [2019-12-07 19:10:23,365 INFO L246 CegarLoopResult]: For program point L103(lines 103 106) no Hoare annotation was computed. [2019-12-07 19:10:23,366 INFO L246 CegarLoopResult]: For program point L70(lines 70 75) no Hoare annotation was computed. [2019-12-07 19:10:23,366 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 19:10:23,366 INFO L246 CegarLoopResult]: For program point L95(lines 95 107) no Hoare annotation was computed. [2019-12-07 19:10:23,366 INFO L246 CegarLoopResult]: For program point L124(lines 124 127) no Hoare annotation was computed. [2019-12-07 19:10:23,366 INFO L249 CegarLoopResult]: At program point L129(lines 113 130) the Hoare annotation is: true [2019-12-07 19:10:23,366 INFO L246 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2019-12-07 19:10:23,366 INFO L246 CegarLoopResult]: For program point L47(lines 47 48) no Hoare annotation was computed. [2019-12-07 19:10:23,366 INFO L246 CegarLoopResult]: For program point L43(lines 43 44) no Hoare annotation was computed. [2019-12-07 19:10:23,366 INFO L246 CegarLoopResult]: For program point L68(lines 68 84) no Hoare annotation was computed. [2019-12-07 19:10:23,371 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 19:10:23,372 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 19:10:23,374 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,374 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,374 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,374 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,375 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,375 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,375 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,375 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,376 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,377 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,377 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,377 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,379 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 19:10:23,380 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 19:10:23,380 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,380 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,380 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,380 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,380 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,381 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,381 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,381 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,381 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,381 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,381 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,382 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,382 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 19:10:23,383 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 19:10:23,383 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,383 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,383 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,383 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,383 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,383 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,384 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,384 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,384 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,384 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,384 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,384 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,385 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 19:10:23,385 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 19:10:23,385 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,385 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,385 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,386 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,386 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,386 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,386 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,386 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,386 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,387 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,387 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,387 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,387 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,388 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,388 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,388 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,388 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,388 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,389 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,389 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,389 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,389 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 07:10:23 BoogieIcfgContainer [2019-12-07 19:10:23,390 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 19:10:23,391 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 19:10:23,391 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 19:10:23,391 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 19:10:23,391 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:10:15" (3/4) ... [2019-12-07 19:10:23,394 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 19:10:23,401 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-12-07 19:10:23,402 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-12-07 19:10:23,402 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 19:10:23,420 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) [2019-12-07 19:10:23,421 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1bv32 == \result && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) [2019-12-07 19:10:23,453 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a88cd1d8-d94a-476f-854c-0ca70d1085eb/bin/utaipan/witness.graphml [2019-12-07 19:10:23,453 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 19:10:23,454 INFO L168 Benchmark]: Toolchain (without parser) took 20188.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 952.4 MB in the beginning and 963.8 MB in the end (delta: -11.5 MB). Peak memory consumption was 118.0 MB. Max. memory is 11.5 GB. [2019-12-07 19:10:23,454 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:10:23,454 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -165.9 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2019-12-07 19:10:23,454 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:10:23,455 INFO L168 Benchmark]: Boogie Preprocessor took 25.99 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. [2019-12-07 19:10:23,455 INFO L168 Benchmark]: RCFGBuilder took 11644.71 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: 28.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 11.5 GB. [2019-12-07 19:10:23,455 INFO L168 Benchmark]: TraceAbstraction took 8189.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 963.8 MB in the end (delta: 118.7 MB). Peak memory consumption was 118.7 MB. Max. memory is 11.5 GB. [2019-12-07 19:10:23,455 INFO L168 Benchmark]: Witness Printer took 62.12 ms. Allocated memory is still 1.2 GB. Free memory is still 963.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:10:23,457 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 232.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -165.9 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.99 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 11644.71 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: 28.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8189.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 963.8 MB in the end (delta: 118.7 MB). Peak memory consumption was 118.7 MB. Max. memory is 11.5 GB. * Witness Printer took 62.12 ms. Allocated memory is still 1.2 GB. Free memory is still 963.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 125]: 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: 111]: Loop Invariant [2019-12-07 19:10:23,461 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 19:10:23,461 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 19:10:23,461 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,462 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,462 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,462 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,462 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,462 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,462 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,462 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,462 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,463 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,463 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,463 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,463 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 19:10:23,464 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 19:10:23,464 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,464 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,464 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,464 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,464 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,465 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,465 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,465 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,465 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,465 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,466 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,466 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((1bv32 == \result && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 32]: Loop Invariant [2019-12-07 19:10:23,467 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 19:10:23,467 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 19:10:23,467 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,467 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,467 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,467 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,468 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,468 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,468 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,468 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,468 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,469 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,469 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,469 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,469 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 19:10:23,470 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 19:10:23,470 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,470 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,470 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,470 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,471 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,471 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,471 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,471 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,471 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,472 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,472 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,472 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant [2019-12-07 19:10:23,473 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,473 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,473 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,473 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,474 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,474 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 19:10:23,474 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,474 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,474 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 19:10:23,475 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Result: SAFE, OverallTime: 7.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 52 SDtfs, 29 SDslu, 20 SDs, 0 SdLazy, 23 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 138 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 30 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 54 ConstructedInterpolants, 5 QuantifiedInterpolants, 4154 SizeOfPredicates, 17 NumberOfNonLiveVariables, 117 ConjunctsInSsa, 20 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...