./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bf7e02a1-c97e-4a8c-a7bc-99d0358503bf/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bf7e02a1-c97e-4a8c-a7bc-99d0358503bf/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bf7e02a1-c97e-4a8c-a7bc-99d0358503bf/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bf7e02a1-c97e-4a8c-a7bc-99d0358503bf/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bf7e02a1-c97e-4a8c-a7bc-99d0358503bf/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bf7e02a1-c97e-4a8c-a7bc-99d0358503bf/bin-2019/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 7de8352890f1d55270cdee8daa00c3bfaf4226ea .................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bf7e02a1-c97e-4a8c-a7bc-99d0358503bf/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bf7e02a1-c97e-4a8c-a7bc-99d0358503bf/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bf7e02a1-c97e-4a8c-a7bc-99d0358503bf/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bf7e02a1-c97e-4a8c-a7bc-99d0358503bf/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bf7e02a1-c97e-4a8c-a7bc-99d0358503bf/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bf7e02a1-c97e-4a8c-a7bc-99d0358503bf/bin-2019/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 7de8352890f1d55270cdee8daa00c3bfaf4226ea ...................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 16:53:23,820 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:53:23,821 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:53:23,829 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:53:23,830 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:53:23,830 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:53:23,831 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:53:23,832 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:53:23,833 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:53:23,834 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:53:23,834 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:53:23,835 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:53:23,835 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:53:23,836 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:53:23,837 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:53:23,837 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:53:23,838 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:53:23,839 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:53:23,840 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:53:23,841 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:53:23,842 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:53:23,843 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:53:23,845 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:53:23,845 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:53:23,845 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:53:23,845 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:53:23,846 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:53:23,847 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:53:23,847 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:53:23,848 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:53:23,848 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:53:23,849 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:53:23,849 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:53:23,849 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:53:23,850 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:53:23,850 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:53:23,851 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bf7e02a1-c97e-4a8c-a7bc-99d0358503bf/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 16:53:23,860 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:53:23,861 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:53:23,861 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:53:23,861 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 16:53:23,861 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 16:53:23,862 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 16:53:23,862 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 16:53:23,862 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 16:53:23,862 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 16:53:23,862 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 16:53:23,862 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 16:53:23,862 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 16:53:23,863 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 16:53:23,863 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:53:23,863 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:53:23,863 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:53:23,863 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:53:23,864 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:53:23,864 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:53:23,864 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:53:23,864 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:53:23,864 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:53:23,864 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:53:23,864 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:53:23,865 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:53:23,865 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:53:23,865 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:53:23,865 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:53:23,865 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:53:23,865 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:53:23,865 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:53:23,866 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:53:23,866 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:53:23,866 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 16:53:23,866 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:53:23,866 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 16:53:23,867 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 16:53:23,867 INFO L133 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/working_dir_bf7e02a1-c97e-4a8c-a7bc-99d0358503bf/bin-2019/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 -> 7de8352890f1d55270cdee8daa00c3bfaf4226ea [2018-11-18 16:53:23,888 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:53:23,895 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:53:23,898 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:53:23,899 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:53:23,899 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:53:23,900 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bf7e02a1-c97e-4a8c-a7bc-99d0358503bf/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c [2018-11-18 16:53:23,935 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bf7e02a1-c97e-4a8c-a7bc-99d0358503bf/bin-2019/utaipan/data/596d8334a/7cd0617af7d04d3f818c3071bb0af424/FLAG6acbc7a33 [2018-11-18 16:53:24,270 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:53:24,270 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bf7e02a1-c97e-4a8c-a7bc-99d0358503bf/sv-benchmarks/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c [2018-11-18 16:53:24,276 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bf7e02a1-c97e-4a8c-a7bc-99d0358503bf/bin-2019/utaipan/data/596d8334a/7cd0617af7d04d3f818c3071bb0af424/FLAG6acbc7a33 [2018-11-18 16:53:24,695 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bf7e02a1-c97e-4a8c-a7bc-99d0358503bf/bin-2019/utaipan/data/596d8334a/7cd0617af7d04d3f818c3071bb0af424 [2018-11-18 16:53:24,698 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:53:24,698 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:53:24,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:53:24,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:53:24,701 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:53:24,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:53:24" (1/1) ... [2018-11-18 16:53:24,703 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d293ee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:53:24, skipping insertion in model container [2018-11-18 16:53:24,703 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:53:24" (1/1) ... [2018-11-18 16:53:24,708 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:53:24,720 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:53:24,817 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:53:24,819 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:53:24,828 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:53:24,836 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:53:24,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:53:24 WrapperNode [2018-11-18 16:53:24,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:53:24,836 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:53:24,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:53:24,836 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:53:24,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:53:24" (1/1) ... [2018-11-18 16:53:24,844 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:53:24" (1/1) ... [2018-11-18 16:53:24,847 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:53:24,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:53:24,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:53:24,848 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:53:24,853 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:53:24" (1/1) ... [2018-11-18 16:53:24,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:53:24" (1/1) ... [2018-11-18 16:53:24,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:53:24" (1/1) ... [2018-11-18 16:53:24,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:53:24" (1/1) ... [2018-11-18 16:53:24,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:53:24" (1/1) ... [2018-11-18 16:53:24,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:53:24" (1/1) ... [2018-11-18 16:53:24,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:53:24" (1/1) ... [2018-11-18 16:53:24,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:53:24,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:53:24,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:53:24,859 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:53:24,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:53:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bf7e02a1-c97e-4a8c-a7bc-99d0358503bf/bin-2019/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 [2018-11-18 16:53:24,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:53:24,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:53:24,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:53:24,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:53:24,931 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:53:24,931 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:53:24,931 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 16:53:24,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 16:53:25,013 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:53:25,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:53:25 BoogieIcfgContainer [2018-11-18 16:53:25,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:53:25,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:53:25,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:53:25,015 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:53:25,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:53:24" (1/3) ... [2018-11-18 16:53:25,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b26ab71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:53:25, skipping insertion in model container [2018-11-18 16:53:25,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:53:24" (2/3) ... [2018-11-18 16:53:25,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b26ab71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:53:25, skipping insertion in model container [2018-11-18 16:53:25,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:53:25" (3/3) ... [2018-11-18 16:53:25,017 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_tight_true-unreach-call_true-termination.c [2018-11-18 16:53:25,022 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:53:25,026 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 16:53:25,035 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 16:53:25,051 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:53:25,051 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:53:25,052 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:53:25,052 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:53:25,052 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:53:25,052 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:53:25,052 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:53:25,052 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:53:25,061 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-18 16:53:25,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 16:53:25,064 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:53:25,064 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:53:25,065 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:53:25,068 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:53:25,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1736771137, now seen corresponding path program 1 times [2018-11-18 16:53:25,070 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:53:25,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:53:25,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:53:25,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:53:25,099 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:53:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:53:25,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:53:25,132 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 16:53:25,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:53:25 BoogieIcfgContainer [2018-11-18 16:53:25,146 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 16:53:25,146 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:53:25,146 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:53:25,146 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:53:25,147 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:53:25" (3/4) ... [2018-11-18 16:53:25,149 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 16:53:25,149 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:53:25,149 INFO L168 Benchmark]: Toolchain (without parser) took 451.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 958.0 MB in the beginning and 1.1 GB in the end (delta: -162.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:53:25,150 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:53:25,151 INFO L168 Benchmark]: CACSL2BoogieTranslator took 137.21 ms. Allocated memory is still 1.0 GB. Free memory was 958.0 MB in the beginning and 947.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:53:25,152 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.26 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:53:25,152 INFO L168 Benchmark]: Boogie Preprocessor took 10.52 ms. Allocated memory is still 1.0 GB. Free memory is still 944.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:53:25,153 INFO L168 Benchmark]: RCFGBuilder took 154.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -189.7 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2018-11-18 16:53:25,153 INFO L168 Benchmark]: TraceAbstraction took 132.11 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:53:25,154 INFO L168 Benchmark]: Witness Printer took 2.84 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. [2018-11-18 16:53:25,156 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 137.21 ms. Allocated memory is still 1.0 GB. Free memory was 958.0 MB in the beginning and 947.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.26 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.52 ms. Allocated memory is still 1.0 GB. Free memory is still 944.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 154.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -189.7 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 132.11 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.84 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: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 19, overapproximation of someBinaryArithmeticDOUBLEoperation at line 19. Possible FailurePath: [L13] double x,y; [L15] x = __VERIFIER_nondet_double() [L18] y = x*x - x VAL [x=2] [L19] COND TRUE y >= 0 [L19] y = x / 10. VAL [x=2] [L22] CALL __VERIFIER_assert(y >= 0. && y <= 4.) VAL [\old(cond)=0] [L9] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L9] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. UNSAFE Result, 0.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.23-5842f4b [2018-11-18 16:53:26,562 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:53:26,563 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:53:26,571 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:53:26,571 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:53:26,572 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:53:26,573 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:53:26,574 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:53:26,575 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:53:26,575 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:53:26,576 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:53:26,576 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:53:26,577 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:53:26,577 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:53:26,578 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:53:26,578 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:53:26,579 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:53:26,580 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:53:26,581 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:53:26,582 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:53:26,583 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:53:26,584 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:53:26,586 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:53:26,586 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:53:26,586 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:53:26,587 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:53:26,587 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:53:26,588 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:53:26,588 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:53:26,589 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:53:26,589 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:53:26,590 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:53:26,590 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:53:26,590 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:53:26,591 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:53:26,591 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:53:26,591 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bf7e02a1-c97e-4a8c-a7bc-99d0358503bf/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 16:53:26,601 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:53:26,601 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:53:26,602 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:53:26,602 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 16:53:26,602 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 16:53:26,602 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 16:53:26,602 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 16:53:26,602 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 16:53:26,602 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 16:53:26,603 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 16:53:26,603 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:53:26,603 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:53:26,603 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:53:26,603 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:53:26,604 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:53:26,604 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:53:26,604 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:53:26,604 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 16:53:26,604 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 16:53:26,604 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:53:26,604 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:53:26,604 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:53:26,605 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:53:26,605 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:53:26,605 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:53:26,605 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:53:26,605 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:53:26,605 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:53:26,605 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:53:26,606 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:53:26,606 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:53:26,606 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 16:53:26,606 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:53:26,606 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 16:53:26,606 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 16:53:26,606 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_bf7e02a1-c97e-4a8c-a7bc-99d0358503bf/bin-2019/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 -> 7de8352890f1d55270cdee8daa00c3bfaf4226ea [2018-11-18 16:53:26,635 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:53:26,644 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:53:26,647 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:53:26,648 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:53:26,648 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:53:26,649 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bf7e02a1-c97e-4a8c-a7bc-99d0358503bf/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c [2018-11-18 16:53:26,681 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bf7e02a1-c97e-4a8c-a7bc-99d0358503bf/bin-2019/utaipan/data/bc69cefb3/7b05232290c94e0881c0b88b5eb9a987/FLAGe6fc6339f [2018-11-18 16:53:27,073 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:53:27,073 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bf7e02a1-c97e-4a8c-a7bc-99d0358503bf/sv-benchmarks/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c [2018-11-18 16:53:27,077 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bf7e02a1-c97e-4a8c-a7bc-99d0358503bf/bin-2019/utaipan/data/bc69cefb3/7b05232290c94e0881c0b88b5eb9a987/FLAGe6fc6339f [2018-11-18 16:53:27,085 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bf7e02a1-c97e-4a8c-a7bc-99d0358503bf/bin-2019/utaipan/data/bc69cefb3/7b05232290c94e0881c0b88b5eb9a987 [2018-11-18 16:53:27,087 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:53:27,088 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:53:27,089 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:53:27,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:53:27,091 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:53:27,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:53:27" (1/1) ... [2018-11-18 16:53:27,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e366777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:53:27, skipping insertion in model container [2018-11-18 16:53:27,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:53:27" (1/1) ... [2018-11-18 16:53:27,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:53:27,111 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:53:27,217 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:53:27,221 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:53:27,230 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:53:27,239 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:53:27,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:53:27 WrapperNode [2018-11-18 16:53:27,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:53:27,240 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:53:27,240 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:53:27,240 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:53:27,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:53:27" (1/1) ... [2018-11-18 16:53:27,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:53:27" (1/1) ... [2018-11-18 16:53:27,254 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:53:27,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:53:27,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:53:27,254 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:53:27,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:53:27" (1/1) ... [2018-11-18 16:53:27,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:53:27" (1/1) ... [2018-11-18 16:53:27,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:53:27" (1/1) ... [2018-11-18 16:53:27,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:53:27" (1/1) ... [2018-11-18 16:53:27,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:53:27" (1/1) ... [2018-11-18 16:53:27,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:53:27" (1/1) ... [2018-11-18 16:53:27,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:53:27" (1/1) ... [2018-11-18 16:53:27,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:53:27,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:53:27,271 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:53:27,271 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:53:27,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:53:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bf7e02a1-c97e-4a8c-a7bc-99d0358503bf/bin-2019/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 [2018-11-18 16:53:27,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:53:27,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:53:27,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:53:27,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:53:27,350 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:53:27,351 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:53:27,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 16:53:27,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 16:53:30,359 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:53:30,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:53:30 BoogieIcfgContainer [2018-11-18 16:53:30,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:53:30,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:53:30,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:53:30,362 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:53:30,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:53:27" (1/3) ... [2018-11-18 16:53:30,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b440315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:53:30, skipping insertion in model container [2018-11-18 16:53:30,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:53:27" (2/3) ... [2018-11-18 16:53:30,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b440315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:53:30, skipping insertion in model container [2018-11-18 16:53:30,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:53:30" (3/3) ... [2018-11-18 16:53:30,364 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_tight_true-unreach-call_true-termination.c [2018-11-18 16:53:30,369 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:53:30,373 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 16:53:30,381 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 16:53:30,402 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:53:30,402 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:53:30,403 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:53:30,403 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:53:30,403 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:53:30,403 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:53:30,403 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:53:30,403 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:53:30,403 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:53:30,418 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-18 16:53:30,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 16:53:30,423 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:53:30,423 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:53:30,425 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:53:30,428 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:53:30,428 INFO L82 PathProgramCache]: Analyzing trace with hash -1736771137, now seen corresponding path program 1 times [2018-11-18 16:53:30,431 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:53:30,431 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bf7e02a1-c97e-4a8c-a7bc-99d0358503bf/bin-2019/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 [2018-11-18 16:53:30,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:53:30,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:53:30,854 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:53:33,070 WARN L832 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (= (fp.div roundNearestTiesToEven main_~x~0 .cse0) c_main_~y~0) (fp.leq main_~x~0 .cse0) (fp.geq main_~x~0 (_ +zero 11 53))))) is different from false [2018-11-18 16:53:35,223 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (= (fp.div roundNearestTiesToEven main_~x~0 .cse0) c_main_~y~0) (fp.leq main_~x~0 .cse0) (fp.geq main_~x~0 (_ +zero 11 53))))) is different from true [2018-11-18 16:53:53,002 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse2 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (and (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32)) (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (let ((.cse0 (fp.div roundNearestTiesToEven main_~x~0 .cse1))) (and (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 4.0)) (fp.geq .cse0 (_ +zero 11 53)) (fp.leq main_~x~0 .cse1) (fp.geq main_~x~0 (_ +zero 11 53))))))) (and .cse2 (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq v_prenex_3 .cse3) (fp.geq v_prenex_3 (_ +zero 11 53)) (not (fp.leq (fp.div roundNearestTiesToEven v_prenex_3 .cse3) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))))))) (and (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse4 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.geq (fp.div roundNearestTiesToEven v_prenex_1 .cse4) (_ +zero 11 53))) (fp.geq v_prenex_1 (_ +zero 11 53)) (fp.leq v_prenex_1 .cse4)))) .cse2))) is different from false [2018-11-18 16:54:05,548 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and .cse0 (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.geq (fp.div roundNearestTiesToEven v_prenex_1 .cse1) (_ +zero 11 53))) (fp.geq v_prenex_1 (_ +zero 11 53)) (fp.leq v_prenex_1 .cse1))))) (and .cse0 (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq v_prenex_3 .cse2) (fp.geq v_prenex_3 (_ +zero 11 53)) (not (fp.leq (fp.div roundNearestTiesToEven v_prenex_3 .cse2) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)))) is different from false [2018-11-18 16:54:16,658 WARN L832 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.geq (fp.div roundNearestTiesToEven v_prenex_1 .cse0) (_ +zero 11 53))) (fp.geq v_prenex_1 (_ +zero 11 53)) (fp.leq v_prenex_1 .cse0)))) (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq v_prenex_3 .cse1) (fp.geq v_prenex_3 (_ +zero 11 53)) (not (fp.leq (fp.div roundNearestTiesToEven v_prenex_3 .cse1) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))))))) is different from false [2018-11-18 16:54:18,840 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.geq (fp.div roundNearestTiesToEven v_prenex_1 .cse0) (_ +zero 11 53))) (fp.geq v_prenex_1 (_ +zero 11 53)) (fp.leq v_prenex_1 .cse0)))) (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq v_prenex_3 .cse1) (fp.geq v_prenex_3 (_ +zero 11 53)) (not (fp.leq (fp.div roundNearestTiesToEven v_prenex_3 .cse1) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))))))) is different from true [2018-11-18 16:54:18,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:54:18,844 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:54:18,856 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:54:18,856 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 16:54:18,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 16:54:18,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 16:54:18,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=5, Unknown=6, NotChecked=20, Total=42 [2018-11-18 16:54:18,868 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 7 states. [2018-11-18 16:54:33,928 WARN L180 SmtUtils]: Spent 10.08 s on a formula simplification that was a NOOP. DAG size: 13 [2018-11-18 16:54:36,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:54:36,085 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2018-11-18 16:54:36,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 16:54:36,263 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2018-11-18 16:54:36,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:54:36,268 INFO L225 Difference]: With dead ends: 30 [2018-11-18 16:54:36,268 INFO L226 Difference]: Without dead ends: 11 [2018-11-18 16:54:36,270 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.3s TimeCoverageRelationStatistics Valid=14, Invalid=7, Unknown=7, NotChecked=28, Total=56 [2018-11-18 16:54:36,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-11-18 16:54:36,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-18 16:54:36,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-18 16:54:36,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2018-11-18 16:54:36,291 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 10 [2018-11-18 16:54:36,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:54:36,291 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2018-11-18 16:54:36,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 16:54:36,291 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2018-11-18 16:54:36,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 16:54:36,291 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:54:36,292 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:54:36,292 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:54:36,292 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:54:36,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1734924095, now seen corresponding path program 1 times [2018-11-18 16:54:36,293 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:54:36,293 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bf7e02a1-c97e-4a8c-a7bc-99d0358503bf/bin-2019/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 [2018-11-18 16:54:36,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:54:36,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:54:36,702 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:54:45,372 WARN L180 SmtUtils]: Spent 7.34 s on a formula simplification that was a NOOP. DAG size: 12 [2018-11-18 16:54:47,417 WARN L832 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven main_~x~0 main_~x~0))) (and (= (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) c_main_~y~0) (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) is different from false [2018-11-18 16:54:49,457 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven main_~x~0 main_~x~0))) (and (= (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) c_main_~y~0) (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) is different from true [2018-11-18 16:55:05,875 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse3 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (and (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32)) (exists ((v_prenex_7 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven v_prenex_7 v_prenex_7))) (let ((.cse0 (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) (and (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 4.0)) (fp.geq .cse0 (_ +zero 11 53)) (fp.geq v_prenex_7 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 v_prenex_7) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq v_prenex_7 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))))))) (and (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse2 (fp.mul roundNearestTiesToEven main_~x~0 main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse2 main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) .cse3) (and (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse4 (fp.mul roundNearestTiesToEven v_prenex_5 v_prenex_5))) (and (fp.leq v_prenex_5 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse4 v_prenex_5) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.geq (fp.add roundNearestTiesToEven .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53)))))) .cse3))) is different from false [2018-11-18 16:55:20,247 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and .cse0 (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven main_~x~0 main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))))) (and (exists ((v_prenex_7 (_ FloatingPoint 11 53))) (let ((.cse3 (fp.mul roundNearestTiesToEven v_prenex_7 v_prenex_7))) (let ((.cse2 (fp.add roundNearestTiesToEven .cse3 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) (and (fp.leq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 4.0)) (fp.geq .cse2 (_ +zero 11 53)) (fp.geq v_prenex_7 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse3 v_prenex_7) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq v_prenex_7 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (and .cse0 (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse4 (fp.mul roundNearestTiesToEven v_prenex_5 v_prenex_5))) (and (fp.leq v_prenex_5 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse4 v_prenex_5) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.geq (fp.add roundNearestTiesToEven .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))))))))) is different from false [2018-11-18 16:55:30,512 WARN L832 $PredicateComparison]: unable to prove that (or (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven main_~x~0 main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven v_prenex_5 v_prenex_5))) (and (fp.leq v_prenex_5 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 v_prenex_5) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.geq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))))))) is different from false [2018-11-18 16:55:32,553 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven main_~x~0 main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven v_prenex_5 v_prenex_5))) (and (fp.leq v_prenex_5 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 v_prenex_5) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.geq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))))))) is different from true [2018-11-18 16:55:32,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:55:32,554 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:55:32,564 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:55:32,564 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 16:55:32,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 16:55:32,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 16:55:32,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=5, Unknown=6, NotChecked=20, Total=42 [2018-11-18 16:55:32,566 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand 7 states. [2018-11-18 16:55:34,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:55:34,638 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2018-11-18 16:55:34,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 16:55:34,680 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2018-11-18 16:55:34,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:55:34,680 INFO L225 Difference]: With dead ends: 11 [2018-11-18 16:55:34,681 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 16:55:34,681 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.1s TimeCoverageRelationStatistics Valid=11, Invalid=5, Unknown=6, NotChecked=20, Total=42 [2018-11-18 16:55:34,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 16:55:34,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 16:55:34,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 16:55:34,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 16:55:34,682 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-11-18 16:55:34,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:55:34,682 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 16:55:34,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 16:55:34,682 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 16:55:34,682 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 16:55:34,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 16:55:58,072 WARN L180 SmtUtils]: Spent 23.35 s on a formula simplification that was a NOOP. DAG size: 27 [2018-11-18 16:55:59,800 WARN L180 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 117 DAG size of output: 1 [2018-11-18 16:55:59,801 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 16:55:59,802 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 16:55:59,802 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 16:55:59,802 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 16:55:59,802 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 16:55:59,802 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 16:55:59,802 INFO L421 ceAbstractionStarter]: At program point L19-2(lines 19 20) the Hoare annotation is: (let ((.cse0 (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (.cse1 (fp.geq main_~x~0 (_ +zero 11 53)))) (or (and .cse0 .cse1 (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse2 (fp.mul roundNearestTiesToEven main_~x~0 main_~x~0))) (and (= (fp.add roundNearestTiesToEven .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) main_~y~0) (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse2 main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))))) (and (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (= (fp.div roundNearestTiesToEven main_~x~0 .cse3) main_~y~0) (fp.leq main_~x~0 .cse3) (fp.geq main_~x~0 (_ +zero 11 53))))) .cse0 .cse1))) [2018-11-18 16:55:59,802 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 11 24) the Hoare annotation is: true [2018-11-18 16:55:59,802 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 11 24) no Hoare annotation was computed. [2018-11-18 16:55:59,802 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 11 24) no Hoare annotation was computed. [2018-11-18 16:55:59,802 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-18 16:55:59,802 INFO L425 ceAbstractionStarter]: For program point L19(lines 19 20) no Hoare annotation was computed. [2018-11-18 16:55:59,803 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 9) the Hoare annotation is: true [2018-11-18 16:55:59,803 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 9) no Hoare annotation was computed. [2018-11-18 16:55:59,803 INFO L425 ceAbstractionStarter]: For program point L9(line 9) no Hoare annotation was computed. [2018-11-18 16:55:59,803 INFO L425 ceAbstractionStarter]: For program point L9-1(line 9) no Hoare annotation was computed. [2018-11-18 16:55:59,803 INFO L425 ceAbstractionStarter]: For program point L9-3(line 9) no Hoare annotation was computed. [2018-11-18 16:55:59,803 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2018-11-18 16:55:59,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:55:59 BoogieIcfgContainer [2018-11-18 16:55:59,805 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 16:55:59,805 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:55:59,805 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:55:59,806 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:55:59,806 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:53:30" (3/4) ... [2018-11-18 16:55:59,809 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 16:55:59,813 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 16:55:59,813 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 16:55:59,813 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-18 16:55:59,816 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 16:55:59,816 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 16:55:59,816 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 16:55:59,840 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bf7e02a1-c97e-4a8c-a7bc-99d0358503bf/bin-2019/utaipan/witness.graphml [2018-11-18 16:55:59,840 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:55:59,841 INFO L168 Benchmark]: Toolchain (without parser) took 152753.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 950.8 MB in the beginning and 1.0 GB in the end (delta: -98.4 MB). Peak memory consumption was 37.9 MB. Max. memory is 11.5 GB. [2018-11-18 16:55:59,841 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:55:59,841 INFO L168 Benchmark]: CACSL2BoogieTranslator took 151.42 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:55:59,842 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.39 ms. Allocated memory is still 1.0 GB. Free memory was 940.1 MB in the beginning and 934.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:55:59,842 INFO L168 Benchmark]: Boogie Preprocessor took 16.73 ms. Allocated memory is still 1.0 GB. Free memory is still 934.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:55:59,842 INFO L168 Benchmark]: RCFGBuilder took 3088.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 934.7 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2018-11-18 16:55:59,843 INFO L168 Benchmark]: TraceAbstraction took 149445.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 63.2 MB). Peak memory consumption was 63.2 MB. Max. memory is 11.5 GB. [2018-11-18 16:55:59,843 INFO L168 Benchmark]: Witness Printer took 34.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:55:59,846 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 151.42 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.39 ms. Allocated memory is still 1.0 GB. Free memory was 940.1 MB in the beginning and 934.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.73 ms. Allocated memory is still 1.0 GB. Free memory is still 934.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 3088.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 934.7 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 149445.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 63.2 MB). Peak memory consumption was 63.2 MB. Max. memory is 11.5 GB. * Witness Printer took 34.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 149.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 19.5s AutomataDifference, 0.0s DeadEndRemovalTime, 25.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 22 SDtfs, 4 SDslu, 51 SDs, 0 SdLazy, 2 SolverSat, 1 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 5.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 48.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 7 PreInvPairs, 8 NumberOfFragments, 75 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 443 FormulaSimplificationTreeSizeReductionInter, 25.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 103.8s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 8 QuantifiedInterpolants, 5373 SizeOfPredicates, 6 NumberOfNonLiveVariables, 42 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...