./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i.p+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i.p+cfa-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/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 1bbff5832e71471655f4416229b3fdd1dac2e479 ..................................................................................................................................................................................................................................................... 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_3eedc209-7e1d-4f21-83a1-668681ff9647/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i.p+cfa-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/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 1bbff5832e71471655f4416229b3fdd1dac2e479 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 19:43:02,789 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:43:02,790 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:43:02,799 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:43:02,800 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:43:02,800 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:43:02,801 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:43:02,803 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:43:02,804 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:43:02,805 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:43:02,805 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:43:02,805 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:43:02,806 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:43:02,807 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:43:02,808 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:43:02,808 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:43:02,809 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:43:02,810 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:43:02,812 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:43:02,813 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:43:02,813 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:43:02,814 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:43:02,816 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:43:02,816 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:43:02,816 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:43:02,817 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:43:02,818 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:43:02,818 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:43:02,819 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:43:02,820 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:43:02,820 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:43:02,820 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:43:02,820 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:43:02,821 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:43:02,821 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:43:02,822 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:43:02,822 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 19:43:02,832 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:43:02,832 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:43:02,833 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:43:02,833 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:43:02,833 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:43:02,833 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:43:02,834 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:43:02,834 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 19:43:02,834 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:43:02,834 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:43:02,834 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 19:43:02,834 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 19:43:02,834 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:43:02,834 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:43:02,835 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:43:02,835 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 19:43:02,835 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:43:02,835 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:43:02,835 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:43:02,835 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:43:02,835 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:43:02,835 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:43:02,836 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:43:02,836 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:43:02,836 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:43:02,836 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:43:02,836 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:43:02,836 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:43:02,836 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:43:02,836 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:43:02,836 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:43:02,836 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:43:02,836 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 19:43:02,837 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:43:02,837 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 19:43:02,837 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 19:43:02,837 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_3eedc209-7e1d-4f21-83a1-668681ff9647/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 -> 1bbff5832e71471655f4416229b3fdd1dac2e479 [2018-12-09 19:43:02,859 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:43:02,868 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:43:02,871 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:43:02,872 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:43:02,872 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:43:02,873 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/bin-2019/utaipan/../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i.p+cfa-reducer.c [2018-12-09 19:43:02,916 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/bin-2019/utaipan/data/696ddb323/953c800a9c2e4ee8b0b8cc5867f32b89/FLAG5740ee453 [2018-12-09 19:43:03,327 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:43:03,328 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i.p+cfa-reducer.c [2018-12-09 19:43:03,331 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/bin-2019/utaipan/data/696ddb323/953c800a9c2e4ee8b0b8cc5867f32b89/FLAG5740ee453 [2018-12-09 19:43:03,339 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/bin-2019/utaipan/data/696ddb323/953c800a9c2e4ee8b0b8cc5867f32b89 [2018-12-09 19:43:03,341 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:43:03,342 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:43:03,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:43:03,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:43:03,344 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:43:03,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:43:03" (1/1) ... [2018-12-09 19:43:03,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4af6adec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:03, skipping insertion in model container [2018-12-09 19:43:03,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:43:03" (1/1) ... [2018-12-09 19:43:03,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:43:03,359 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:43:03,442 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:43:03,445 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:43:03,454 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:43:03,461 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:43:03,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:03 WrapperNode [2018-12-09 19:43:03,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:43:03,462 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:43:03,462 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:43:03,462 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:43:03,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:03" (1/1) ... [2018-12-09 19:43:03,470 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:03" (1/1) ... [2018-12-09 19:43:03,473 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:43:03,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:43:03,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:43:03,474 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:43:03,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:03" (1/1) ... [2018-12-09 19:43:03,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:03" (1/1) ... [2018-12-09 19:43:03,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:03" (1/1) ... [2018-12-09 19:43:03,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:03" (1/1) ... [2018-12-09 19:43:03,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:03" (1/1) ... [2018-12-09 19:43:03,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:03" (1/1) ... [2018-12-09 19:43:03,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:03" (1/1) ... [2018-12-09 19:43:03,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:43:03,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:43:03,485 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:43:03,485 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:43:03,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/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 [2018-12-09 19:43:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:43:03,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:43:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:43:03,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:43:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:43:03,548 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:43:03,626 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:43:03,626 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 19:43:03,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:43:03 BoogieIcfgContainer [2018-12-09 19:43:03,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:43:03,627 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:43:03,627 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:43:03,629 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:43:03,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:43:03" (1/3) ... [2018-12-09 19:43:03,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ad00f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:43:03, skipping insertion in model container [2018-12-09 19:43:03,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:03" (2/3) ... [2018-12-09 19:43:03,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ad00f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:43:03, skipping insertion in model container [2018-12-09 19:43:03,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:43:03" (3/3) ... [2018-12-09 19:43:03,631 INFO L112 eAbstractionObserver]: Analyzing ICFG Double_div_true-unreach-call.i.p+cfa-reducer.c [2018-12-09 19:43:03,636 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:43:03,640 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 19:43:03,649 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 19:43:03,666 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:43:03,666 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:43:03,666 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:43:03,666 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:43:03,666 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:43:03,666 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:43:03,667 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:43:03,667 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:43:03,676 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2018-12-09 19:43:03,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 19:43:03,680 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:43:03,680 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:43:03,682 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:43:03,685 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:43:03,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1301230683, now seen corresponding path program 1 times [2018-12-09 19:43:03,686 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:43:03,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:43:03,713 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:43:03,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:43:03,713 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:43:03,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:43:03,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:43:03,747 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 19:43:03,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:43:03 BoogieIcfgContainer [2018-12-09 19:43:03,761 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:43:03,761 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:43:03,761 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:43:03,762 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:43:03,762 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:43:03" (3/4) ... [2018-12-09 19:43:03,764 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 19:43:03,764 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:43:03,765 INFO L168 Benchmark]: Toolchain (without parser) took 423.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -114.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:43:03,766 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:43:03,766 INFO L168 Benchmark]: CACSL2BoogieTranslator took 119.11 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:43:03,766 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.68 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:43:03,767 INFO L168 Benchmark]: Boogie Preprocessor took 10.86 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:43:03,767 INFO L168 Benchmark]: RCFGBuilder took 142.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -139.2 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-12-09 19:43:03,767 INFO L168 Benchmark]: TraceAbstraction took 133.77 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-12-09 19:43:03,768 INFO L168 Benchmark]: Witness Printer took 2.87 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:43:03,769 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 119.11 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.3 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 11.68 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.86 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 142.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -139.2 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 133.77 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * Witness Printer took 2.87 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 25]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 10, overapproximation of someBinaryArithmeticDOUBLEoperation at line 8. Possible FailurePath: [L1] int __return_main; VAL [\old(__return_main)=2, __return_main=0] [L7] double main__x = 1.0; [L8] double main__x1 = main__x / 2.5; VAL [__return_main=0, main__x=1] [L10] COND FALSE !(main__x1 != main__x) [L19] int __tmp_1; [L20] __tmp_1 = main__x == 0 [L21] int __VERIFIER_assert__cond; [L22] __VERIFIER_assert__cond = __tmp_1 VAL [__return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main__x=1] [L23] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main__x=1] [L25] __VERIFIER_error() VAL [__return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main__x=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 14 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=14occurred 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, 9 NumberOfCodeBlocks, 9 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 0.1.23-635dfa2 [2018-12-09 19:43:05,038 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:43:05,039 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:43:05,045 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:43:05,045 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:43:05,046 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:43:05,046 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:43:05,047 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:43:05,048 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:43:05,048 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:43:05,048 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:43:05,049 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:43:05,049 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:43:05,050 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:43:05,050 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:43:05,050 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:43:05,051 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:43:05,052 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:43:05,052 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:43:05,053 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:43:05,054 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:43:05,054 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:43:05,055 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:43:05,056 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:43:05,056 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:43:05,056 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:43:05,057 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:43:05,057 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:43:05,057 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:43:05,058 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:43:05,058 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:43:05,058 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:43:05,059 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:43:05,059 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:43:05,059 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:43:05,060 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:43:05,060 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 19:43:05,067 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:43:05,067 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:43:05,067 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:43:05,068 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:43:05,068 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:43:05,068 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:43:05,068 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:43:05,068 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:43:05,068 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:43:05,068 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:43:05,068 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:43:05,068 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:43:05,069 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:43:05,069 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:43:05,069 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:43:05,069 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:43:05,069 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:43:05,069 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 19:43:05,069 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 19:43:05,069 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:43:05,069 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:43:05,069 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 19:43:05,069 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:43:05,069 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:43:05,069 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:43:05,070 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:43:05,070 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:43:05,070 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:43:05,070 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:43:05,070 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:43:05,070 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:43:05,070 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 19:43:05,070 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:43:05,070 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 19:43:05,070 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 19:43:05,070 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_3eedc209-7e1d-4f21-83a1-668681ff9647/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 -> 1bbff5832e71471655f4416229b3fdd1dac2e479 [2018-12-09 19:43:05,089 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:43:05,098 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:43:05,101 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:43:05,102 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:43:05,103 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:43:05,103 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/bin-2019/utaipan/../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i.p+cfa-reducer.c [2018-12-09 19:43:05,148 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/bin-2019/utaipan/data/9395d0327/3c137f6729df4880a0e004ca549c9aeb/FLAG29570d72d [2018-12-09 19:43:05,481 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:43:05,482 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i.p+cfa-reducer.c [2018-12-09 19:43:05,485 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/bin-2019/utaipan/data/9395d0327/3c137f6729df4880a0e004ca549c9aeb/FLAG29570d72d [2018-12-09 19:43:05,889 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/bin-2019/utaipan/data/9395d0327/3c137f6729df4880a0e004ca549c9aeb [2018-12-09 19:43:05,891 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:43:05,892 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:43:05,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:43:05,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:43:05,895 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:43:05,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:43:05" (1/1) ... [2018-12-09 19:43:05,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a847288 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:05, skipping insertion in model container [2018-12-09 19:43:05,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:43:05" (1/1) ... [2018-12-09 19:43:05,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:43:05,916 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:43:06,007 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:43:06,011 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:43:06,020 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:43:06,029 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:43:06,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:06 WrapperNode [2018-12-09 19:43:06,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:43:06,030 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:43:06,030 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:43:06,030 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:43:06,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:06" (1/1) ... [2018-12-09 19:43:06,039 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:06" (1/1) ... [2018-12-09 19:43:06,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:43:06,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:43:06,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:43:06,043 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:43:06,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:06" (1/1) ... [2018-12-09 19:43:06,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:06" (1/1) ... [2018-12-09 19:43:06,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:06" (1/1) ... [2018-12-09 19:43:06,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:06" (1/1) ... [2018-12-09 19:43:06,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:06" (1/1) ... [2018-12-09 19:43:06,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:06" (1/1) ... [2018-12-09 19:43:06,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:06" (1/1) ... [2018-12-09 19:43:06,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:43:06,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:43:06,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:43:06,057 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:43:06,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/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 [2018-12-09 19:43:06,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:43:06,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:43:06,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:43:06,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:43:06,119 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:43:06,119 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:43:06,807 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:43:06,807 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 19:43:06,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:43:06 BoogieIcfgContainer [2018-12-09 19:43:06,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:43:06,808 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:43:06,808 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:43:06,809 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:43:06,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:43:05" (1/3) ... [2018-12-09 19:43:06,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af94d46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:43:06, skipping insertion in model container [2018-12-09 19:43:06,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:06" (2/3) ... [2018-12-09 19:43:06,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af94d46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:43:06, skipping insertion in model container [2018-12-09 19:43:06,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:43:06" (3/3) ... [2018-12-09 19:43:06,812 INFO L112 eAbstractionObserver]: Analyzing ICFG Double_div_true-unreach-call.i.p+cfa-reducer.c [2018-12-09 19:43:06,817 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:43:06,821 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 19:43:06,830 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 19:43:06,846 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 19:43:06,847 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:43:06,847 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:43:06,847 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:43:06,847 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:43:06,847 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:43:06,847 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:43:06,847 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:43:06,848 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:43:06,857 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2018-12-09 19:43:06,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 19:43:06,860 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:43:06,860 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:43:06,862 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:43:06,865 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:43:06,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1301230683, now seen corresponding path program 1 times [2018-12-09 19:43:06,867 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:43:06,867 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/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 [2018-12-09 19:43:06,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:43:07,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:43:07,035 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:43:08,096 WARN L180 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 11 [2018-12-09 19:43:08,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:43:08,102 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:43:08,112 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:43:08,112 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 19:43:08,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 19:43:08,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 19:43:08,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:43:08,124 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2018-12-09 19:43:10,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:43:10,258 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2018-12-09 19:43:10,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:43:10,438 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-12-09 19:43:10,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:43:10,443 INFO L225 Difference]: With dead ends: 22 [2018-12-09 19:43:10,444 INFO L226 Difference]: Without dead ends: 11 [2018-12-09 19:43:10,445 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:43:10,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-12-09 19:43:10,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-12-09 19:43:10,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-12-09 19:43:10,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-12-09 19:43:10,465 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2018-12-09 19:43:10,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:43:10,466 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-12-09 19:43:10,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 19:43:10,466 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-12-09 19:43:10,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 19:43:10,466 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:43:10,466 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:43:10,467 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:43:10,467 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:43:10,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1683383028, now seen corresponding path program 1 times [2018-12-09 19:43:10,467 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:43:10,467 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/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 [2018-12-09 19:43:10,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:43:10,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:43:10,770 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:43:13,279 WARN L180 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 12 [2018-12-09 19:43:13,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:43:13,282 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 19:43:24,182 WARN L180 SmtUtils]: Spent 2.66 s on a formula simplification that was a NOOP. DAG size: 7 [2018-12-09 19:43:24,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:43:24,203 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:43:24,203 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 19:43:24,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:43:31,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:43:31,508 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:43:31,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:43:31,517 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 19:43:57,646 WARN L180 SmtUtils]: Spent 7.84 s on a formula simplification that was a NOOP. DAG size: 11 [2018-12-09 19:43:57,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:43:57,722 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-12-09 19:43:57,722 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 5] total 9 [2018-12-09 19:43:57,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 19:43:57,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 19:43:57,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=47, Unknown=2, NotChecked=0, Total=72 [2018-12-09 19:43:57,723 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 9 states. [2018-12-09 19:44:11,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:44:11,508 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2018-12-09 19:44:11,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 19:44:11,509 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 10 [2018-12-09 19:44:11,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:44:11,509 INFO L225 Difference]: With dead ends: 16 [2018-12-09 19:44:11,509 INFO L226 Difference]: Without dead ends: 13 [2018-12-09 19:44:11,510 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 4 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 41.7s TimeCoverageRelationStatistics Valid=30, Invalid=57, Unknown=3, NotChecked=0, Total=90 [2018-12-09 19:44:11,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-12-09 19:44:11,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-12-09 19:44:11,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-12-09 19:44:11,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-12-09 19:44:11,512 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2018-12-09 19:44:11,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:44:11,512 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-12-09 19:44:11,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 19:44:11,513 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-12-09 19:44:11,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 19:44:11,513 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:44:11,513 INFO L402 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:44:11,513 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:44:11,513 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:44:11,513 INFO L82 PathProgramCache]: Analyzing trace with hash -1473580076, now seen corresponding path program 2 times [2018-12-09 19:44:11,514 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:44:11,514 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-09 19:44:11,517 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-12-09 19:44:12,057 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-09 19:44:12,058 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-09 19:44:12,097 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:44:17,961 WARN L180 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 14 [2018-12-09 19:44:17,966 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:44:17,966 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 19:44:24,210 WARN L854 $PredicateComparison]: unable to prove that (or (fp.eq c_main_~main__x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven c_main_~main__x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~main__x1~0))) is different from true [2018-12-09 19:44:26,600 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven c_main_~main__x1~0 .cse1))) (or (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) is different from false [2018-12-09 19:44:28,986 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven c_main_~main__x1~0 .cse1))) (or (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) is different from true [2018-12-09 19:44:31,540 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven c_main_~main__x1~0 .cse1) .cse1))) (or (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) is different from false [2018-12-09 19:44:34,087 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven c_main_~main__x1~0 .cse1) .cse1))) (or (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) is different from true [2018-12-09 19:44:34,100 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 6 not checked. [2018-12-09 19:44:34,114 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:44:34,114 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 19:44:34,120 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-09 19:44:47,277 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-09 19:44:47,278 INFO L250 tOrderPrioritization]: Conjunction of SSA is unknown [2018-12-09 19:44:49,212 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-09 19:44:49,212 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2018-12-09 19:44:49,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 19:44:49,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 19:44:49,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=42, Unknown=6, NotChecked=42, Total=110 [2018-12-09 19:44:49,213 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 11 states. [2018-12-09 19:44:51,791 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (and (let ((.cse0 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven c_main_~main__x1~0 .cse2) .cse2))) (or (fp.eq .cse0 .cse1) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse2) .cse0)))) (= c_main_~main__x1~0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse2)) (or (not (fp.eq c_main_~main__x1~0 c_main_~main__x~0)) (fp.eq c_main_~main__x~0 .cse1)))) is different from true [2018-12-09 19:44:54,186 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (and (let ((.cse0 (fp.div roundNearestTiesToEven c_main_~main__x1~0 .cse1))) (or (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)))) (= (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse1) .cse1) c_main_~main__x1~0))) is different from true [2018-12-09 19:45:00,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:45:00,357 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2018-12-09 19:45:00,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 19:45:00,358 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2018-12-09 19:45:00,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:45:00,358 INFO L225 Difference]: With dead ends: 19 [2018-12-09 19:45:00,358 INFO L226 Difference]: Without dead ends: 15 [2018-12-09 19:45:00,359 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.0s TimeCoverageRelationStatistics Valid=28, Invalid=56, Unknown=8, NotChecked=90, Total=182 [2018-12-09 19:45:00,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-12-09 19:45:00,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-12-09 19:45:00,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-12-09 19:45:00,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-12-09 19:45:00,361 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2018-12-09 19:45:00,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:45:00,362 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-12-09 19:45:00,362 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 19:45:00,362 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-12-09 19:45:00,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-09 19:45:00,362 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:45:00,362 INFO L402 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:45:00,362 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:45:00,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:45:00,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1226755252, now seen corresponding path program 3 times [2018-12-09 19:45:00,363 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:45:00,363 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-12-09 19:45:00,366 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-12-09 19:45:01,088 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-12-09 19:45:01,088 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-09 19:45:01,140 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:45:04,337 WARN L180 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 7 [2018-12-09 19:45:06,746 WARN L832 $PredicateComparison]: unable to prove that (and (exists ((v_main_~main__x~0_13 (_ FloatingPoint 11 53))) (and (not (fp.eq c_main_~main__x~0 v_main_~main__x~0_13)) (= c_main_~main__x~0 (fp.div roundNearestTiesToEven v_main_~main__x~0_13 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))))) (= (fp.div roundNearestTiesToEven c_main_~main__x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~main__x1~0)) is different from false [2018-12-09 19:45:08,971 WARN L854 $PredicateComparison]: unable to prove that (and (exists ((v_main_~main__x~0_13 (_ FloatingPoint 11 53))) (and (not (fp.eq c_main_~main__x~0 v_main_~main__x~0_13)) (= c_main_~main__x~0 (fp.div roundNearestTiesToEven v_main_~main__x~0_13 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))))) (= (fp.div roundNearestTiesToEven c_main_~main__x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~main__x1~0)) is different from true [2018-12-09 19:45:21,297 WARN L832 $PredicateComparison]: unable to prove that (or (and (exists ((v_prenex_2 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_prenex_2 .cse1))) (and (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0) (not (fp.eq .cse0 v_prenex_2)) (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) (= (bvadd c_main_~__VERIFIER_assert__cond~0 (_ bv4294967295 32)) (_ bv0 32))) (and (exists ((v_main_~main__x~0_13 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse2 (fp.div roundNearestTiesToEven v_main_~main__x~0_13 .cse3))) (and (fp.eq (fp.div roundNearestTiesToEven .cse2 .cse3) .cse2) (not (fp.eq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.eq .cse2 v_main_~main__x~0_13)))))) (= c_main_~__VERIFIER_assert__cond~0 (_ bv0 32)))) is different from false [2018-12-09 19:45:28,472 WARN L832 $PredicateComparison]: unable to prove that (exists ((v_main_~main__x~0_13 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~main__x~0_13 .cse1))) (and (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0) (not (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.eq .cse0 v_main_~main__x~0_13)))))) is different from false [2018-12-09 19:45:30,802 WARN L854 $PredicateComparison]: unable to prove that (exists ((v_main_~main__x~0_13 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~main__x~0_13 .cse1))) (and (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0) (not (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.eq .cse0 v_main_~main__x~0_13)))))) is different from true [2018-12-09 19:45:30,803 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 1 not checked. [2018-12-09 19:45:30,804 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 19:45:39,006 WARN L854 $PredicateComparison]: unable to prove that (or (fp.eq c_main_~main__x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven c_main_~main__x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~main__x1~0)) (fp.eq c_main_~main__x1~0 c_main_~main__x~0)) is different from true [2018-12-09 19:45:46,135 WARN L832 $PredicateComparison]: unable to prove that (forall ((v_main_~main__x~0_15 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~main__x~0_15 .cse1))) (or (fp.eq .cse0 v_main_~main__x~0_15) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) is different from false [2018-12-09 19:45:48,535 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_main_~main__x~0_15 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~main__x~0_15 .cse1))) (or (fp.eq .cse0 v_main_~main__x~0_15) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) is different from true [2018-12-09 19:46:17,345 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:46:17,346 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/bin-2019/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 19:46:17,352 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-09 19:46:51,895 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-12-09 19:46:51,895 INFO L250 tOrderPrioritization]: Conjunction of SSA is unknown [2018-12-09 19:46:53,512 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-12-09 19:46:53,512 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-12-09 19:46:53,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 19:46:53,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 19:46:53,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=14, Unknown=9, NotChecked=50, Total=90 [2018-12-09 19:46:53,513 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 6 states. [2018-12-09 19:46:55,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:46:55,957 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-12-09 19:46:56,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 19:46:56,349 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-12-09 19:46:56,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:46:56,350 INFO L225 Difference]: With dead ends: 15 [2018-12-09 19:46:56,350 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 19:46:56,350 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.2s TimeCoverageRelationStatistics Valid=17, Invalid=14, Unknown=9, NotChecked=50, Total=90 [2018-12-09 19:46:56,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 19:46:56,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 19:46:56,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 19:46:56,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 19:46:56,351 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-12-09 19:46:56,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:46:56,351 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 19:46:56,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 19:46:56,351 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 19:46:56,352 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 19:46:56,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 19:48:07,182 WARN L180 SmtUtils]: Spent 1.18 m on a formula simplification. DAG size of input: 33 DAG size of output: 21 [2018-12-09 19:48:07,184 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 19:48:07,184 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 19:48:07,184 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:48:07,184 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:48:07,184 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 19:48:07,185 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 19:48:07,185 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 19:48:07,185 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 5 34) the Hoare annotation is: true [2018-12-09 19:48:07,185 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-12-09 19:48:07,185 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 5 34) no Hoare annotation was computed. [2018-12-09 19:48:07,185 INFO L448 ceAbstractionStarter]: For program point L23(lines 23 31) no Hoare annotation was computed. [2018-12-09 19:48:07,185 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 25) no Hoare annotation was computed. [2018-12-09 19:48:07,186 INFO L444 ceAbstractionStarter]: At program point L14(lines 6 34) the Hoare annotation is: (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (= (fp.div roundNearestTiesToEven main_~main__x~0 .cse1) main_~main__x1~0))) (or (and .cse0 (= main_~main__x1~0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse1))) (and (exists ((v_main_~main__x~0_13 (_ FloatingPoint 11 53))) (and (not (fp.eq main_~main__x~0 v_main_~main__x~0_13)) (= main_~main__x~0 (fp.div roundNearestTiesToEven v_main_~main__x~0_13 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))))) .cse0)))) [2018-12-09 19:48:07,186 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 5 34) no Hoare annotation was computed. [2018-12-09 19:48:07,192 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,192 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,193 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,193 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,193 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,193 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_13,QUANTIFIED] [2018-12-09 19:48:07,194 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,194 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_13,QUANTIFIED] [2018-12-09 19:48:07,194 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,194 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,194 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,197 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,198 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,198 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,198 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,198 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,198 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_13,QUANTIFIED] [2018-12-09 19:48:07,198 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,199 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_13,QUANTIFIED] [2018-12-09 19:48:07,199 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,199 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,199 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:48:07 BoogieIcfgContainer [2018-12-09 19:48:07,201 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:48:07,201 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:48:07,201 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:48:07,201 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:48:07,202 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:43:06" (3/4) ... [2018-12-09 19:48:07,204 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 19:48:07,208 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 19:48:07,209 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 19:48:07,211 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-09 19:48:07,211 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 19:48:07,227 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.div~DOUBLE(~roundNearestTiesToEven, main__x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)) == main__x1 && main__x1 == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2))) || ((\exists v_main_~main__x~0_13 : C_DOUBLE :: !~fp.eq~DOUBLE(main__x, v_main_~main__x~0_13) && main__x == ~fp.div~DOUBLE(~roundNearestTiesToEven, v_main_~main__x~0_13, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2))) && ~fp.div~DOUBLE(~roundNearestTiesToEven, main__x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)) == main__x1) [2018-12-09 19:48:07,233 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3eedc209-7e1d-4f21-83a1-668681ff9647/bin-2019/utaipan/witness.graphml [2018-12-09 19:48:07,233 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:48:07,234 INFO L168 Benchmark]: Toolchain (without parser) took 301342.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 941.9 MB in the beginning and 960.2 MB in the end (delta: -18.3 MB). Peak memory consumption was 111.8 MB. Max. memory is 11.5 GB. [2018-12-09 19:48:07,234 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:48:07,235 INFO L168 Benchmark]: CACSL2BoogieTranslator took 137.07 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 MB in the beginning and 931.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:48:07,235 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.10 ms. Allocated memory is still 1.0 GB. Free memory is still 931.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:48:07,235 INFO L168 Benchmark]: Boogie Preprocessor took 13.44 ms. Allocated memory is still 1.0 GB. Free memory was 931.2 MB in the beginning and 925.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 19:48:07,236 INFO L168 Benchmark]: RCFGBuilder took 750.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 925.8 MB in the beginning and 1.1 GB in the end (delta: -173.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-09 19:48:07,236 INFO L168 Benchmark]: TraceAbstraction took 300393.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 966.9 MB in the end (delta: 132.4 MB). Peak memory consumption was 132.4 MB. Max. memory is 11.5 GB. [2018-12-09 19:48:07,236 INFO L168 Benchmark]: Witness Printer took 32.12 ms. Allocated memory is still 1.2 GB. Free memory was 966.9 MB in the beginning and 960.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:48:07,238 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 137.07 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 MB in the beginning and 931.2 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 13.10 ms. Allocated memory is still 1.0 GB. Free memory is still 931.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.44 ms. Allocated memory is still 1.0 GB. Free memory was 931.2 MB in the beginning and 925.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 750.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 925.8 MB in the beginning and 1.1 GB in the end (delta: -173.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 300393.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 966.9 MB in the end (delta: 132.4 MB). Peak memory consumption was 132.4 MB. Max. memory is 11.5 GB. * Witness Printer took 32.12 ms. Allocated memory is still 1.2 GB. Free memory was 966.9 MB in the beginning and 960.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_13,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[v_main_~main__x~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 25]: 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: 6]: Loop Invariant [2018-12-09 19:48:07,241 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,242 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,242 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,242 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,242 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,242 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_13,QUANTIFIED] [2018-12-09 19:48:07,242 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,242 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_13,QUANTIFIED] [2018-12-09 19:48:07,243 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,243 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,243 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,243 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,243 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,244 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,244 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,244 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,244 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_13,QUANTIFIED] [2018-12-09 19:48:07,244 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,244 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_13,QUANTIFIED] [2018-12-09 19:48:07,244 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,245 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:48:07,245 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~fp.div~DOUBLE(~roundNearestTiesToEven, main__x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)) == main__x1 && main__x1 == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2))) || ((\exists v_main_~main__x~0_13 : C_DOUBLE :: !~fp.eq~DOUBLE(main__x, v_main_~main__x~0_13) && main__x == ~fp.div~DOUBLE(~roundNearestTiesToEven, v_main_~main__x~0_13, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2))) && ~fp.div~DOUBLE(~roundNearestTiesToEven, main__x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)) == main__x1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 14 locations, 1 error locations. SAFE Result, 300.3s OverallTime, 4 OverallIterations, 5 TraceHistogramMax, 30.1s AutomataDifference, 0.0s DeadEndRemovalTime, 70.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 36 SDtfs, 1 SDslu, 99 SDs, 0 SdLazy, 38 SolverSat, 4 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 18.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 62 SyntacticMatches, 8 SemanticMatches, 29 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 100.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=3, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 47 HoareAnnotationTreeSize, 5 FomulaSimplifications, 211 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 54 FormulaSimplificationTreeSizeReductionInter, 70.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 56.3s SatisfiabilityAnalysisTime, 139.2s InterpolantComputationTime, 81 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 79 ConstructedInterpolants, 3 QuantifiedInterpolants, 5622 SizeOfPredicates, 19 NumberOfNonLiveVariables, 117 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 8 InterpolantComputations, 1 PerfectInterpolantSequences, 14/31 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...