./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/floats-esbmc-regression/Double_div.i.p+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d3efc4d3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/floats-esbmc-regression/Double_div.i.p+cfa-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fb5ab7eb36d10dfdf42ecc1671ac3f1599a6bed2 .............................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/floats-esbmc-regression/Double_div.i.p+cfa-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fb5ab7eb36d10dfdf42ecc1671ac3f1599a6bed2 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.0-d3efc4d [2020-12-04 10:21:10,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-04 10:21:10,670 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-04 10:21:10,706 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-04 10:21:10,707 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-04 10:21:10,708 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-04 10:21:10,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-04 10:21:10,713 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-04 10:21:10,715 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-04 10:21:10,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-04 10:21:10,718 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-04 10:21:10,719 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-04 10:21:10,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-04 10:21:10,721 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-04 10:21:10,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-04 10:21:10,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-04 10:21:10,726 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-04 10:21:10,727 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-04 10:21:10,729 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-04 10:21:10,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-04 10:21:10,734 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-04 10:21:10,738 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-04 10:21:10,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-04 10:21:10,740 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-04 10:21:10,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-04 10:21:10,744 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-04 10:21:10,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-04 10:21:10,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-04 10:21:10,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-04 10:21:10,748 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-04 10:21:10,748 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-04 10:21:10,749 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-04 10:21:10,750 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-04 10:21:10,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-04 10:21:10,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-04 10:21:10,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-04 10:21:10,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-04 10:21:10,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-04 10:21:10,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-04 10:21:10,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-04 10:21:10,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-04 10:21:10,759 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-04 10:21:10,797 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-04 10:21:10,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-04 10:21:10,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-04 10:21:10,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-04 10:21:10,802 INFO L138 SettingsManager]: * Use SBE=true [2020-12-04 10:21:10,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-04 10:21:10,804 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-04 10:21:10,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-04 10:21:10,805 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-04 10:21:10,805 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-04 10:21:10,807 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-04 10:21:10,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-04 10:21:10,807 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-04 10:21:10,808 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-04 10:21:10,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-04 10:21:10,808 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-04 10:21:10,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-04 10:21:10,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-04 10:21:10,809 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-04 10:21:10,810 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-04 10:21:10,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-04 10:21:10,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-04 10:21:10,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-04 10:21:10,811 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-04 10:21:10,811 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-04 10:21:10,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-04 10:21:10,812 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-04 10:21:10,812 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-04 10:21:10,812 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb5ab7eb36d10dfdf42ecc1671ac3f1599a6bed2 [2020-12-04 10:21:11,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-04 10:21:11,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-04 10:21:11,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-04 10:21:11,304 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-04 10:21:11,305 INFO L275 PluginConnector]: CDTParser initialized [2020-12-04 10:21:11,306 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-esbmc-regression/Double_div.i.p+cfa-reducer.c [2020-12-04 10:21:11,410 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85d26a776/8a7d265b36e44a9d95be11157203866c/FLAGd192f4ad7 [2020-12-04 10:21:12,011 INFO L306 CDTParser]: Found 1 translation units. [2020-12-04 10:21:12,012 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/Double_div.i.p+cfa-reducer.c [2020-12-04 10:21:12,020 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85d26a776/8a7d265b36e44a9d95be11157203866c/FLAGd192f4ad7 [2020-12-04 10:21:12,389 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85d26a776/8a7d265b36e44a9d95be11157203866c [2020-12-04 10:21:12,393 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-04 10:21:12,395 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-04 10:21:12,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-04 10:21:12,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-04 10:21:12,405 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-04 10:21:12,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.12 10:21:12" (1/1) ... [2020-12-04 10:21:12,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@241e25fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:21:12, skipping insertion in model container [2020-12-04 10:21:12,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.12 10:21:12" (1/1) ... [2020-12-04 10:21:12,443 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-04 10:21:12,491 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-04 10:21:12,669 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/Double_div.i.p+cfa-reducer.c[670,683] [2020-12-04 10:21:12,675 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-04 10:21:12,689 INFO L212 MainTranslator]: Completed pre-run [2020-12-04 10:21:12,708 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/Double_div.i.p+cfa-reducer.c[670,683] [2020-12-04 10:21:12,709 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-04 10:21:12,727 INFO L217 MainTranslator]: Completed translation [2020-12-04 10:21:12,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:21:12 WrapperNode [2020-12-04 10:21:12,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-04 10:21:12,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-04 10:21:12,729 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-04 10:21:12,730 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-04 10:21:12,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:21:12" (1/1) ... [2020-12-04 10:21:12,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:21:12" (1/1) ... [2020-12-04 10:21:12,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-04 10:21:12,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-04 10:21:12,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-04 10:21:12,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-04 10:21:12,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:21:12" (1/1) ... [2020-12-04 10:21:12,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:21:12" (1/1) ... [2020-12-04 10:21:12,783 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:21:12" (1/1) ... [2020-12-04 10:21:12,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:21:12" (1/1) ... [2020-12-04 10:21:12,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:21:12" (1/1) ... [2020-12-04 10:21:12,790 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:21:12" (1/1) ... [2020-12-04 10:21:12,792 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:21:12" (1/1) ... [2020-12-04 10:21:12,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-04 10:21:12,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-04 10:21:12,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-04 10:21:12,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-04 10:21:12,796 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:21:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-12-04 10:21:12,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-04 10:21:12,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-04 10:21:12,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-04 10:21:12,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-04 10:21:13,305 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-04 10:21:13,305 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-04 10:21:13,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.12 10:21:13 BoogieIcfgContainer [2020-12-04 10:21:13,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-04 10:21:13,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-04 10:21:13,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-04 10:21:13,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-04 10:21:13,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.12 10:21:12" (1/3) ... [2020-12-04 10:21:13,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e82418a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.12 10:21:13, skipping insertion in model container [2020-12-04 10:21:13,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:21:12" (2/3) ... [2020-12-04 10:21:13,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e82418a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.12 10:21:13, skipping insertion in model container [2020-12-04 10:21:13,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.12 10:21:13" (3/3) ... [2020-12-04 10:21:13,323 INFO L111 eAbstractionObserver]: Analyzing ICFG Double_div.i.p+cfa-reducer.c [2020-12-04 10:21:13,342 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-04 10:21:13,347 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-04 10:21:13,366 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-04 10:21:13,412 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-04 10:21:13,412 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-04 10:21:13,412 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-04 10:21:13,413 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-04 10:21:13,413 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-04 10:21:13,413 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-04 10:21:13,413 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-04 10:21:13,414 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-04 10:21:13,435 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-12-04 10:21:13,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-04 10:21:13,443 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 10:21:13,444 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-04 10:21:13,444 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 10:21:13,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 10:21:13,453 INFO L82 PathProgramCache]: Analyzing trace with hash 28696774, now seen corresponding path program 1 times [2020-12-04 10:21:13,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-04 10:21:13,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946138594] [2020-12-04 10:21:13,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-04 10:21:13,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-04 10:21:13,644 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-04 10:21:13,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-04 10:21:13,706 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-04 10:21:13,740 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-04 10:21:13,741 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-04 10:21:13,742 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-04 10:21:13,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.12 10:21:13 BoogieIcfgContainer [2020-12-04 10:21:13,784 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-04 10:21:13,786 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-04 10:21:13,787 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-04 10:21:13,787 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-04 10:21:13,788 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.12 10:21:13" (3/4) ... [2020-12-04 10:21:13,797 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-04 10:21:13,798 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-04 10:21:13,803 INFO L168 Benchmark]: Toolchain (without parser) took 1404.43 ms. Allocated memory was 39.8 MB in the beginning and 50.3 MB in the end (delta: 10.5 MB). Free memory was 16.9 MB in the beginning and 31.0 MB in the end (delta: -14.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-04 10:21:13,807 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 39.8 MB. Free memory was 26.4 MB in the beginning and 26.3 MB in the end (delta: 27.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-04 10:21:13,810 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.71 ms. Allocated memory was 39.8 MB in the beginning and 50.3 MB in the end (delta: 10.5 MB). Free memory was 16.7 MB in the beginning and 27.0 MB in the end (delta: -10.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-12-04 10:21:13,812 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.67 ms. Allocated memory is still 50.3 MB. Free memory was 27.0 MB in the beginning and 25.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-04 10:21:13,814 INFO L168 Benchmark]: Boogie Preprocessor took 23.10 ms. Allocated memory is still 50.3 MB. Free memory was 25.7 MB in the beginning and 24.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-04 10:21:13,815 INFO L168 Benchmark]: RCFGBuilder took 514.41 ms. Allocated memory is still 50.3 MB. Free memory was 24.6 MB in the beginning and 27.3 MB in the end (delta: -2.7 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2020-12-04 10:21:13,817 INFO L168 Benchmark]: TraceAbstraction took 472.13 ms. Allocated memory is still 50.3 MB. Free memory was 26.9 MB in the beginning and 31.5 MB in the end (delta: -4.6 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2020-12-04 10:21:13,818 INFO L168 Benchmark]: Witness Printer took 11.56 ms. Allocated memory is still 50.3 MB. Free memory was 31.2 MB in the beginning and 31.0 MB in the end (delta: 234.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-04 10:21:13,837 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 ms. Allocated memory is still 39.8 MB. Free memory was 26.4 MB in the beginning and 26.3 MB in the end (delta: 27.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 328.71 ms. Allocated memory was 39.8 MB in the beginning and 50.3 MB in the end (delta: 10.5 MB). Free memory was 16.7 MB in the beginning and 27.0 MB in the end (delta: -10.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.67 ms. Allocated memory is still 50.3 MB. Free memory was 27.0 MB in the beginning and 25.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.10 ms. Allocated memory is still 50.3 MB. Free memory was 25.7 MB in the beginning and 24.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 514.41 ms. Allocated memory is still 50.3 MB. Free memory was 24.6 MB in the beginning and 27.3 MB in the end (delta: -2.7 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 472.13 ms. Allocated memory is still 50.3 MB. Free memory was 26.9 MB in the beginning and 31.5 MB in the end (delta: -4.6 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. * Witness Printer took 11.56 ms. Allocated memory is still 50.3 MB. Free memory was 31.2 MB in the beginning and 31.0 MB in the end (delta: 234.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticDOUBLE_SMToperation at line 10, overapproximation of someBinaryDOUBLE_SMTComparisonOperation at line 12. Possible FailurePath: [L1] int __return_main; VAL [__return_main=0] [L9] double main__x = 1.0; [L10] double main__x1 = main__x / 2.5; VAL [__return_main=0] [L12] COND FALSE !(main__x1 != main__x) [L21] int __tmp_1; [L22] __tmp_1 = main__x == 0 [L23] int __VERIFIER_assert__cond; [L24] __VERIFIER_assert__cond = __tmp_1 VAL [__return_main=0] [L25] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_main=0] [L27] reach_error() VAL [__return_main=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-d3efc4d [2020-12-04 10:21:16,493 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-04 10:21:16,497 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-04 10:21:16,550 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-04 10:21:16,550 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-04 10:21:16,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-04 10:21:16,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-04 10:21:16,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-04 10:21:16,571 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-04 10:21:16,576 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-04 10:21:16,581 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-04 10:21:16,582 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-04 10:21:16,582 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-04 10:21:16,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-04 10:21:16,584 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-04 10:21:16,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-04 10:21:16,586 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-04 10:21:16,587 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-04 10:21:16,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-04 10:21:16,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-04 10:21:16,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-04 10:21:16,595 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-04 10:21:16,596 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-04 10:21:16,597 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-04 10:21:16,600 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-04 10:21:16,601 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-04 10:21:16,601 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-04 10:21:16,602 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-04 10:21:16,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-04 10:21:16,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-04 10:21:16,604 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-04 10:21:16,605 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-04 10:21:16,606 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-04 10:21:16,607 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-04 10:21:16,608 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-04 10:21:16,609 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-04 10:21:16,609 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-04 10:21:16,610 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-04 10:21:16,610 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-04 10:21:16,611 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-04 10:21:16,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-04 10:21:16,615 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-04 10:21:16,640 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-04 10:21:16,640 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-04 10:21:16,642 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-04 10:21:16,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-04 10:21:16,642 INFO L138 SettingsManager]: * Use SBE=true [2020-12-04 10:21:16,643 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-04 10:21:16,643 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-04 10:21:16,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-04 10:21:16,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-04 10:21:16,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-04 10:21:16,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-04 10:21:16,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-04 10:21:16,644 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-04 10:21:16,645 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-04 10:21:16,645 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-04 10:21:16,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-04 10:21:16,645 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-04 10:21:16,646 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-04 10:21:16,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-04 10:21:16,646 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-04 10:21:16,646 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-04 10:21:16,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-04 10:21:16,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-04 10:21:16,647 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-04 10:21:16,647 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-04 10:21:16,648 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-04 10:21:16,648 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-04 10:21:16,648 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-04 10:21:16,649 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-04 10:21:16,649 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-04 10:21:16,649 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb5ab7eb36d10dfdf42ecc1671ac3f1599a6bed2 [2020-12-04 10:21:17,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-04 10:21:17,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-04 10:21:17,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-04 10:21:17,132 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-04 10:21:17,133 INFO L275 PluginConnector]: CDTParser initialized [2020-12-04 10:21:17,134 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-esbmc-regression/Double_div.i.p+cfa-reducer.c [2020-12-04 10:21:17,228 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dadaee1e3/975b4ef108324843b6f12624af099afa/FLAG1a82df284 [2020-12-04 10:21:17,935 INFO L306 CDTParser]: Found 1 translation units. [2020-12-04 10:21:17,936 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/Double_div.i.p+cfa-reducer.c [2020-12-04 10:21:17,945 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dadaee1e3/975b4ef108324843b6f12624af099afa/FLAG1a82df284 [2020-12-04 10:21:18,281 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dadaee1e3/975b4ef108324843b6f12624af099afa [2020-12-04 10:21:18,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-04 10:21:18,291 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-04 10:21:18,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-04 10:21:18,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-04 10:21:18,302 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-04 10:21:18,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.12 10:21:18" (1/1) ... [2020-12-04 10:21:18,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ed39ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:21:18, skipping insertion in model container [2020-12-04 10:21:18,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.12 10:21:18" (1/1) ... [2020-12-04 10:21:18,317 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-04 10:21:18,336 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-04 10:21:18,572 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/Double_div.i.p+cfa-reducer.c[670,683] [2020-12-04 10:21:18,590 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-04 10:21:18,620 INFO L212 MainTranslator]: Completed pre-run [2020-12-04 10:21:18,648 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/Double_div.i.p+cfa-reducer.c[670,683] [2020-12-04 10:21:18,650 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-04 10:21:18,695 INFO L217 MainTranslator]: Completed translation [2020-12-04 10:21:18,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:21:18 WrapperNode [2020-12-04 10:21:18,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-04 10:21:18,698 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-04 10:21:18,699 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-04 10:21:18,699 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-04 10:21:18,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:21:18" (1/1) ... [2020-12-04 10:21:18,735 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:21:18" (1/1) ... [2020-12-04 10:21:18,761 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-04 10:21:18,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-04 10:21:18,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-04 10:21:18,763 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-04 10:21:18,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:21:18" (1/1) ... [2020-12-04 10:21:18,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:21:18" (1/1) ... [2020-12-04 10:21:18,783 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:21:18" (1/1) ... [2020-12-04 10:21:18,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:21:18" (1/1) ... [2020-12-04 10:21:18,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:21:18" (1/1) ... [2020-12-04 10:21:18,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:21:18" (1/1) ... [2020-12-04 10:21:18,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:21:18" (1/1) ... [2020-12-04 10:21:18,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-04 10:21:18,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-04 10:21:18,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-04 10:21:18,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-04 10:21:18,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:21:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-12-04 10:21:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-12-04 10:21:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-04 10:21:18,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-04 10:21:18,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-04 10:21:18,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-04 10:21:21,352 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-04 10:21:21,352 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-04 10:21:21,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.12 10:21:21 BoogieIcfgContainer [2020-12-04 10:21:21,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-04 10:21:21,356 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-04 10:21:21,357 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-04 10:21:21,360 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-04 10:21:21,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.12 10:21:18" (1/3) ... [2020-12-04 10:21:21,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26fb1805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.12 10:21:21, skipping insertion in model container [2020-12-04 10:21:21,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:21:18" (2/3) ... [2020-12-04 10:21:21,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26fb1805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.12 10:21:21, skipping insertion in model container [2020-12-04 10:21:21,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.12 10:21:21" (3/3) ... [2020-12-04 10:21:21,365 INFO L111 eAbstractionObserver]: Analyzing ICFG Double_div.i.p+cfa-reducer.c [2020-12-04 10:21:21,381 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-04 10:21:21,385 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-04 10:21:21,401 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-04 10:21:21,436 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-04 10:21:21,436 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-04 10:21:21,436 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-04 10:21:21,437 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-04 10:21:21,437 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-04 10:21:21,437 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-04 10:21:21,437 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-04 10:21:21,437 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-04 10:21:21,450 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-12-04 10:21:21,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-04 10:21:21,455 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 10:21:21,456 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-04 10:21:21,456 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 10:21:21,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 10:21:21,468 INFO L82 PathProgramCache]: Analyzing trace with hash 28696774, now seen corresponding path program 1 times [2020-12-04 10:21:21,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-04 10:21:21,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [781954787] [2020-12-04 10:21:21,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-12-04 10:21:22,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-04 10:21:22,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-04 10:21:22,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-04 10:21:24,767 WARN L838 $PredicateComparison]: unable to prove that (and (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0))) (exists ((|v_ULTIMATE.start_main_#t~nondet8_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_6|)))) (and (= (fp.div roundNearestTiesToEven (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)) .cse0) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)) .cse0))))) is different from false [2020-12-04 10:21:24,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 10:21:24,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-04 10:21:27,084 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~main__x~0_7 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_7 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_7) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_7) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_7))) (.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_7) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_7) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_7))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_6|)))) (or (not (= .cse0 ((_ to_fp 11 53) c_~CRM 1.0))) (not (= .cse1 (fp.div c_~CRM .cse0 .cse2))) (not (fp.eq .cse1 .cse0)) (not (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse2))))) is different from true [2020-12-04 10:21:27,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 10:21:27,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [781954787] [2020-12-04 10:21:27,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-04 10:21:27,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-12-04 10:21:27,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085291549] [2020-12-04 10:21:27,093 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-04 10:21:27,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-04 10:21:27,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-04 10:21:27,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=9, Unknown=2, NotChecked=10, Total=30 [2020-12-04 10:21:27,118 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 6 states. [2020-12-04 10:21:31,651 WARN L197 SmtUtils]: Spent 2.28 s on a formula simplification that was a NOOP. DAG size: 34 [2020-12-04 10:21:33,887 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)))) (and (= roundNearestTiesToEven c_~CRM) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse0) (not (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) .cse0)) (exists ((|v_ULTIMATE.start_main_#t~nondet8_6| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_6|)))) (and (= (fp.div roundNearestTiesToEven (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)) .cse1) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)) .cse1)))))) is different from false [2020-12-04 10:21:38,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-04 10:21:38,454 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2020-12-04 10:21:38,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-04 10:21:38,456 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2020-12-04 10:21:38,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-04 10:21:38,465 INFO L225 Difference]: With dead ends: 16 [2020-12-04 10:21:38,466 INFO L226 Difference]: Without dead ends: 7 [2020-12-04 10:21:38,469 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=14, Invalid=14, Unknown=4, NotChecked=24, Total=56 [2020-12-04 10:21:38,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2020-12-04 10:21:38,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-12-04 10:21:38,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-12-04 10:21:38,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2020-12-04 10:21:38,502 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2020-12-04 10:21:38,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-04 10:21:38,502 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2020-12-04 10:21:38,502 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-04 10:21:38,503 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2020-12-04 10:21:38,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-04 10:21:38,503 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 10:21:38,503 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-04 10:21:38,718 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-04 10:21:38,719 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 10:21:38,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 10:21:38,721 INFO L82 PathProgramCache]: Analyzing trace with hash 889537510, now seen corresponding path program 1 times [2020-12-04 10:21:38,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-04 10:21:38,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [573281721] [2020-12-04 10:21:38,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-12-04 10:21:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-04 10:21:40,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-04 10:21:40,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-04 10:21:42,700 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_8| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_8|)))) (and (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) (fp.div c_~CRM .cse0 .cse1)) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse0) (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse1))))) is different from false [2020-12-04 10:21:45,126 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet10_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_6|)))) (and (= (fp.div roundNearestTiesToEven (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)) .cse0) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)) .cse0)))) (exists ((v_ULTIMATE.start_main_~main__x~0_8 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_8| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_8|))) (.cse1 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_8) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_8) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_8)))) (and (= (fp.div roundNearestTiesToEven .cse1 .cse2) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0))) (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)) .cse2) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse1))))) is different from false [2020-12-04 10:21:45,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2020-12-04 10:21:45,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-04 10:21:48,601 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet10_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_9 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_6|))) (.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_9)))) (or (not (fp.eq .cse0 .cse1)) (not (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse2)) (not (= (fp.div c_~CRM .cse1 .cse2) .cse0))))) is different from false [2020-12-04 10:21:50,813 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet10_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_9 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_6|))) (.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_9)))) (or (not (fp.eq .cse0 .cse1)) (not (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse2)) (not (= (fp.div c_~CRM .cse1 .cse2) .cse0))))) is different from true [2020-12-04 10:21:53,263 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~main__x1~0_10 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_10 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_8| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_9 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_6|))) (.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_9))) (.cse2 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_10) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_10) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_10))) (.cse4 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_10) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_10) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_10))) (.cse0 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_8|)))) (or (not (= .cse0 .cse1)) (not (= (fp.div c_~CRM .cse2 .cse1) .cse3)) (not (= ((_ to_fp 11 53) c_~CRM 1.0) .cse4)) (not (fp.eq .cse3 .cse2)) (not (= .cse2 (fp.div c_~CRM .cse4 .cse5))) (not (= .cse0 .cse5))))) is different from true [2020-12-04 10:21:53,265 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2020-12-04 10:21:53,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [573281721] [2020-12-04 10:21:53,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-04 10:21:53,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2020-12-04 10:21:53,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278032484] [2020-12-04 10:21:53,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-04 10:21:53,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-04 10:21:53,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-04 10:21:53,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=10, Unknown=5, NotChecked=28, Total=56 [2020-12-04 10:21:53,270 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 8 states. [2020-12-04 10:21:58,259 WARN L197 SmtUtils]: Spent 2.52 s on a formula simplification that was a NOOP. DAG size: 49 [2020-12-04 10:22:00,884 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (forall ((|v_ULTIMATE.start_main_#t~nondet10_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_9 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_6|))) (.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_9)))) (or (not (fp.eq .cse0 .cse1)) (not (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse2)) (not (= (fp.div c_~CRM .cse1 .cse2) .cse0))))) (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_8| (_ BitVec 64))) (let ((.cse3 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_8|)))) (and (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) (fp.div c_~CRM .cse3 .cse4)) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse3) (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse4)))) (not (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0))))) is different from false [2020-12-04 10:22:03,109 WARN L860 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (forall ((|v_ULTIMATE.start_main_#t~nondet10_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_9 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_6|))) (.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_9)))) (or (not (fp.eq .cse0 .cse1)) (not (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse2)) (not (= (fp.div c_~CRM .cse1 .cse2) .cse0))))) (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_8| (_ BitVec 64))) (let ((.cse3 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_8|)))) (and (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) (fp.div c_~CRM .cse3 .cse4)) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse3) (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse4)))) (not (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0))))) is different from true [2020-12-04 10:22:05,528 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet10_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_6|)))) (and (= (fp.div roundNearestTiesToEven (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)) .cse0) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)) .cse0)))) (exists ((v_ULTIMATE.start_main_~main__x~0_8 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_8| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_8|))) (.cse1 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_8) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_8) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_8)))) (and (= (fp.div roundNearestTiesToEven .cse1 .cse2) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0))) (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)) .cse2) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse1)))) (not (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0))))) is different from false [2020-12-04 10:22:09,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-04 10:22:09,849 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2020-12-04 10:22:09,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-04 10:22:09,850 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 6 [2020-12-04 10:22:09,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-04 10:22:09,850 INFO L225 Difference]: With dead ends: 11 [2020-12-04 10:22:09,850 INFO L226 Difference]: Without dead ends: 8 [2020-12-04 10:22:09,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.9s TimeCoverageRelationStatistics Valid=20, Invalid=15, Unknown=9, NotChecked=66, Total=110 [2020-12-04 10:22:09,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-12-04 10:22:09,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-12-04 10:22:09,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-04 10:22:09,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2020-12-04 10:22:09,863 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2020-12-04 10:22:09,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-04 10:22:09,864 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2020-12-04 10:22:09,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-04 10:22:09,864 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2020-12-04 10:22:09,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-04 10:22:09,865 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 10:22:09,869 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2020-12-04 10:22:10,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-04 10:22:10,072 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 10:22:10,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 10:22:10,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1805796550, now seen corresponding path program 2 times [2020-12-04 10:22:10,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-04 10:22:10,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [418949406] [2020-12-04 10:22:10,075 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-04 10:22:12,651 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-04 10:22:12,651 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-04 10:22:12,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-04 10:22:12,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-04 10:22:15,106 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_10| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_10|)))) (and (= ((_ to_fp 11 53) c_~CRM 1.0) .cse0) (= (fp.div c_~CRM .cse0 .cse1) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse1))))) is different from false [2020-12-04 10:22:17,557 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_11 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_9|))) (.cse2 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_11))) (.cse0 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0))) (.cse3 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_10|)))) (and (= (fp.div c_~CRM .cse0 .cse1) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse2) (= .cse3 .cse1) (= (fp.div c_~CRM .cse2 .cse4) .cse0) (= .cse3 .cse4))))) is different from false [2020-12-04 10:22:20,281 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet10_9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_11 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_12 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_11))) (.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_12) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_12) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_12))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_9|))) (.cse4 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_10|)))) (and (= .cse0 (fp.div c_~CRM .cse1 .cse2)) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse1) (= (fp.div c_~CRM .cse0 .cse3) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0))) (= .cse4 .cse3) (= .cse4 .cse2)))) (exists ((|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64))) (let ((.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|)))) (and (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse5) (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) (fp.div c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)) .cse5)))))) is different from false [2020-12-04 10:22:20,352 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-04 10:22:20,357 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-04 10:22:20,374 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2020-12-04 10:22:20,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-04 10:22:20,814 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-12-04 10:22:23,076 WARN L860 $PredicateComparison]: unable to prove that (or (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (forall ((v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse2 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|)))) (or (not (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse0)) (not (fp.eq .cse1 .cse2)) (not (= .cse1 (fp.div c_~CRM .cse2 .cse0))))))) is different from true [2020-12-04 10:22:25,518 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet10_9| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_14 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64))) (let ((.cse0 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_9|))) (.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse4 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_14))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|)))) (or (not (= .cse0 .cse1)) (not (= .cse0 .cse2)) (not (fp.eq .cse3 .cse4)) (not (= (fp.div c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) .cse2) .cse4)) (fp.eq .cse4 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (not (= .cse3 (fp.div c_~CRM .cse4 .cse1)))))) is different from true [2020-12-04 10:22:28,309 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet10_9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_14 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_15 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_15 (_ BitVec 64))) (let ((.cse0 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_15) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_15) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_15))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_10|))) (.cse5 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|))) (.cse7 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_15) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_15) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_15))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_9|))) (.cse6 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_14)))) (or (not (= .cse0 .cse1)) (not (= .cse0 .cse2)) (not (= ((_ to_fp 11 53) c_~CRM 1.0) .cse3)) (not (= .cse0 .cse4)) (not (fp.eq .cse5 .cse6)) (not (= (fp.div c_~CRM .cse3 .cse1) .cse7)) (fp.eq .cse6 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (not (= .cse5 (fp.div c_~CRM .cse6 .cse2))) (not (= (fp.div c_~CRM .cse7 .cse4) .cse6))))) is different from true [2020-12-04 10:22:28,311 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2020-12-04 10:22:28,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [418949406] [2020-12-04 10:22:28,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-04 10:22:28,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2020-12-04 10:22:28,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937414425] [2020-12-04 10:22:28,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-04 10:22:28,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-04 10:22:28,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-04 10:22:28,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=19, Unknown=6, NotChecked=66, Total=110 [2020-12-04 10:22:28,314 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 11 states. [2020-12-04 10:22:34,064 WARN L197 SmtUtils]: Spent 2.88 s on a formula simplification that was a NOOP. DAG size: 67 [2020-12-04 10:22:36,336 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_10| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_10|)))) (and (= ((_ to_fp 11 53) c_~CRM 1.0) .cse0) (= (fp.div c_~CRM .cse0 .cse1) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse1)))) (forall ((|v_ULTIMATE.start_main_#t~nondet10_9| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_14 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64))) (let ((.cse2 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_9|))) (.cse5 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse6 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_14))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|)))) (or (not (= .cse2 .cse3)) (not (= .cse2 .cse4)) (not (fp.eq .cse5 .cse6)) (not (= (fp.div c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) .cse4) .cse6)) (fp.eq .cse6 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (not (= .cse5 (fp.div c_~CRM .cse6 .cse3)))))) (let ((.cse7 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)))) (or (fp.eq .cse7 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (not (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) .cse7))))) is different from false [2020-12-04 10:22:39,605 WARN L860 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_10| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_10|)))) (and (= ((_ to_fp 11 53) c_~CRM 1.0) .cse0) (= (fp.div c_~CRM .cse0 .cse1) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse1)))) (forall ((|v_ULTIMATE.start_main_#t~nondet10_9| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_14 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64))) (let ((.cse2 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_9|))) (.cse5 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse6 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_14))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|)))) (or (not (= .cse2 .cse3)) (not (= .cse2 .cse4)) (not (fp.eq .cse5 .cse6)) (not (= (fp.div c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) .cse4) .cse6)) (fp.eq .cse6 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (not (= .cse5 (fp.div c_~CRM .cse6 .cse3)))))) (let ((.cse7 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)))) (or (fp.eq .cse7 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (not (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) .cse7))))) is different from true [2020-12-04 10:22:43,615 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (or (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (forall ((v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse2 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|)))) (or (not (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse0)) (not (fp.eq .cse1 .cse2)) (not (= .cse1 (fp.div c_~CRM .cse2 .cse0))))))) (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_11 (_ BitVec 64))) (let ((.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_9|))) (.cse5 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_11))) (.cse3 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0))) (.cse6 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_10|)))) (and (= (fp.div c_~CRM .cse3 .cse4) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse5) (= .cse6 .cse4) (= (fp.div c_~CRM .cse5 .cse7) .cse3) (= .cse6 .cse7))))) is different from false [2020-12-04 10:22:46,228 WARN L860 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (or (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (forall ((v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse2 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|)))) (or (not (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse0)) (not (fp.eq .cse1 .cse2)) (not (= .cse1 (fp.div c_~CRM .cse2 .cse0))))))) (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_11 (_ BitVec 64))) (let ((.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_9|))) (.cse5 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_11))) (.cse3 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0))) (.cse6 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_10|)))) (and (= (fp.div c_~CRM .cse3 .cse4) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse5) (= .cse6 .cse4) (= (fp.div c_~CRM .cse5 .cse7) .cse3) (= .cse6 .cse7))))) is different from true [2020-12-04 10:22:48,897 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet10_9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_11 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_12 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_11))) (.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_12) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_12) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_12))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_9|))) (.cse4 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_10|)))) (and (= .cse0 (fp.div c_~CRM .cse1 .cse2)) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse1) (= (fp.div c_~CRM .cse0 .cse3) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0))) (= .cse4 .cse3) (= .cse4 .cse2)))) (exists ((|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64))) (let ((.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|)))) (and (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse5) (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) (fp.div c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)) .cse5))))) (let ((.cse6 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)))) (or (fp.eq .cse6 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (not (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) .cse6))))) is different from false [2020-12-04 10:22:53,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-04 10:22:53,614 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2020-12-04 10:22:53,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-04 10:22:53,616 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 7 [2020-12-04 10:22:53,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-04 10:22:53,616 INFO L225 Difference]: With dead ends: 12 [2020-12-04 10:22:53,617 INFO L226 Difference]: Without dead ends: 9 [2020-12-04 10:22:53,618 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.8s TimeCoverageRelationStatistics Valid=28, Invalid=26, Unknown=12, NotChecked=144, Total=210 [2020-12-04 10:22:53,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-12-04 10:22:53,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-12-04 10:22:53,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-04 10:22:53,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-12-04 10:22:53,622 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2020-12-04 10:22:53,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-04 10:22:53,622 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-12-04 10:22:53,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-04 10:22:53,622 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-12-04 10:22:53,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-04 10:22:53,623 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 10:22:53,623 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1] [2020-12-04 10:22:53,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-04 10:22:53,836 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 10:22:53,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 10:22:53,838 INFO L82 PathProgramCache]: Analyzing trace with hash 145055718, now seen corresponding path program 3 times [2020-12-04 10:22:53,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-04 10:22:53,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1943499270] [2020-12-04 10:22:53,839 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-12-04 10:22:57,463 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-12-04 10:22:57,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-04 10:22:57,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-04 10:22:57,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-04 10:22:59,935 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_12| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_12|))) (.cse0 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0)))) (and (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) (fp.div c_~CRM .cse0 .cse1)) (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse1) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse0))))) is different from false [2020-12-04 10:23:02,414 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_14| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_12| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_16 (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_16) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_16) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_16))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_12|))) (.cse0 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse3 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_14|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_14|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_14|)))) (and (= .cse0 .cse1) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse2) (= (fp.div c_~CRM .cse2 .cse1) .cse3) (= .cse4 .cse0) (= (fp.div c_~CRM .cse3 .cse4) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))))))) is different from false [2020-12-04 10:23:05,235 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet10_15| (_ BitVec 64)) (ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_14| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_12| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_16 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_17 (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_16) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_16) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_16))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_12|))) (.cse0 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_17) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_17) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_17))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_14|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_14|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_14|))) (.cse6 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_15|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_15|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_15|)))) (and (= .cse0 .cse1) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse2) (= (fp.div c_~CRM .cse2 .cse1) .cse3) (= .cse4 .cse0) (= .cse5 .cse0) (= (fp.div c_~CRM .cse3 .cse5) .cse6) (= (fp.div c_~CRM .cse6 .cse4) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))))))) is different from false [2020-12-04 10:23:08,999 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet10_15| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_14| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_12| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_16 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_17 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_18 (_ BitVec 64))) (let ((.cse5 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_16) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_16) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_16))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_12|))) (.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_17) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_17) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_17))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_14|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_14|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_14|))) (.cse3 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse2 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_18) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_18) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_18))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_15|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_15|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_15|)))) (and (= (fp.div c_~CRM .cse0 .cse1) .cse2) (= .cse3 .cse4) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse5) (= (fp.div c_~CRM .cse5 .cse4) .cse0) (= .cse6 .cse3) (= .cse1 .cse3) (= (fp.div c_~CRM .cse2 .cse6) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)))))) (exists ((|v_ULTIMATE.start_main_#t~nondet10_16| (_ BitVec 64))) (let ((.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_16|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_16|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_16|)))) (and (= (fp.div c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)) .cse7) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse7)))) (= roundNearestTiesToEven c_~CRM)) is different from false [2020-12-04 10:23:09,064 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-04 10:23:09,068 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-04 10:23:09,085 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 6 not checked. [2020-12-04 10:23:09,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-04 10:23:09,698 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-12-04 10:23:11,953 WARN L860 $PredicateComparison]: unable to prove that (or (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_#t~nondet10_16| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_19 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_19) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_19) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_19))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_16|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_16|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_16|)))) (or (not (fp.eq .cse0 .cse1)) (not (= (fp.div c_~CRM .cse1 .cse2) .cse0)) (not (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse2)))))) is different from true [2020-12-04 10:23:14,433 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet10_15| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_20 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_16| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_19 (_ BitVec 64))) (let ((.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_19) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_19) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_19))) (.cse2 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_16|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_16|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_16|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_15|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_15|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_15|))) (.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_20) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_20) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_20)))) (or (fp.eq .cse0 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (not (= .cse1 .cse2)) (not (fp.eq .cse3 .cse0)) (not (= (fp.div c_~CRM .cse0 .cse4) .cse3)) (not (= .cse2 .cse4)) (not (= (fp.div c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) .cse1) .cse0))))) is different from true [2020-12-04 10:23:17,224 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~main__x1~0_21 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_15| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_20 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_16| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_14| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_19 (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_15|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_15|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_15|))) (.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_20) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_20) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_20))) (.cse4 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_19) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_19) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_19))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_16|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_16|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_16|))) (.cse1 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_21) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_21) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_21))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_14|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_14|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_14|))) (.cse3 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)))) (or (not (= .cse0 (fp.div c_~CRM .cse1 .cse2))) (fp.eq .cse0 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (not (= .cse2 .cse3)) (not (fp.eq .cse4 .cse0)) (not (= (fp.div c_~CRM .cse0 .cse5) .cse4)) (not (= .cse3 .cse5)) (not (= .cse1 (fp.div c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) .cse6))) (not (= .cse6 .cse3))))) is different from true [2020-12-04 10:23:19,223 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-12-04 10:23:19,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1943499270] [2020-12-04 10:23:19,225 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") [2020-12-04 10:23:19,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [956222817] [2020-12-04 10:23:19,226 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt [2020-12-04 10:23:24,437 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-12-04 10:23:24,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-04 10:23:24,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-04 10:23:24,446 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@5eb0d74e [2020-12-04 10:23:24,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247296330] [2020-12-04 10:23:24,447 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-04 10:25:22,333 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-12-04 10:25:22,334 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-04 10:25:23,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-04 10:25:23,094 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@5eb0d74e [2020-12-04 10:25:23,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-12-04 10:25:23,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-12-04 10:25:23,095 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-12-04 10:25:23,095 INFO L523 BasicCegarLoop]: Counterexample might be feasible [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forcibly destroying the process [2020-12-04 10:25:23,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3,6 cvc4 --incremental --print-success --lang smt,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-04 10:25:23,768 WARN L254 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-12-04 10:25:23,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.12 10:25:23 BoogieIcfgContainer [2020-12-04 10:25:23,776 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-04 10:25:23,780 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-04 10:25:23,782 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-04 10:25:23,784 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-04 10:25:23,785 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.12 10:21:21" (3/4) ... [2020-12-04 10:25:23,789 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-04 10:25:23,789 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-04 10:25:23,792 INFO L168 Benchmark]: Toolchain (without parser) took 245500.10 ms. Allocated memory is still 50.3 MB. Free memory was 27.1 MB in the beginning and 18.5 MB in the end (delta: 8.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. [2020-12-04 10:25:23,795 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 41.9 MB. Free memory was 20.3 MB in the beginning and 20.2 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-04 10:25:23,797 INFO L168 Benchmark]: CACSL2BoogieTranslator took 401.24 ms. Allocated memory is still 50.3 MB. Free memory was 26.9 MB in the beginning and 27.8 MB in the end (delta: -898.9 kB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-12-04 10:25:23,802 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.36 ms. Allocated memory is still 50.3 MB. Free memory was 27.8 MB in the beginning and 26.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-04 10:25:23,803 INFO L168 Benchmark]: Boogie Preprocessor took 59.65 ms. Allocated memory is still 50.3 MB. Free memory was 26.3 MB in the beginning and 25.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-04 10:25:23,804 INFO L168 Benchmark]: RCFGBuilder took 2531.43 ms. Allocated memory is still 50.3 MB. Free memory was 25.1 MB in the beginning and 24.6 MB in the end (delta: 466.5 kB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-12-04 10:25:23,804 INFO L168 Benchmark]: TraceAbstraction took 242419.61 ms. Allocated memory is still 50.3 MB. Free memory was 24.2 MB in the beginning and 18.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. [2020-12-04 10:25:23,805 INFO L168 Benchmark]: Witness Printer took 8.73 ms. Allocated memory is still 50.3 MB. Free memory was 18.8 MB in the beginning and 18.5 MB in the end (delta: 326.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-04 10:25:23,809 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 41.9 MB. Free memory was 20.3 MB in the beginning and 20.2 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 401.24 ms. Allocated memory is still 50.3 MB. Free memory was 26.9 MB in the beginning and 27.8 MB in the end (delta: -898.9 kB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 63.36 ms. Allocated memory is still 50.3 MB. Free memory was 27.8 MB in the beginning and 26.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 59.65 ms. Allocated memory is still 50.3 MB. Free memory was 26.3 MB in the beginning and 25.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2531.43 ms. Allocated memory is still 50.3 MB. Free memory was 25.1 MB in the beginning and 24.6 MB in the end (delta: 466.5 kB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 242419.61 ms. Allocated memory is still 50.3 MB. Free memory was 24.2 MB in the beginning and 18.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. * Witness Printer took 8.73 ms. Allocated memory is still 50.3 MB. Free memory was 18.8 MB in the beginning and 18.5 MB in the end (delta: 326.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L1] int __return_main; [L9] EXPR 1.0 [L9] double main__x = 1.0; [L10] EXPR 2.5 [L10] EXPR main__x / 2.5 [L10] double main__x1 = main__x / 2.5; [L12] COND TRUE main__x1 != main__x [L14] main__x = main__x1 [L15] EXPR 2.5 [L15] EXPR main__x / 2.5 [L15] main__x1 = main__x / 2.5 [L12] COND TRUE main__x1 != main__x [L14] main__x = main__x1 [L15] EXPR 2.5 [L15] EXPR main__x / 2.5 [L15] main__x1 = main__x / 2.5 [L12] COND TRUE main__x1 != main__x [L14] main__x = main__x1 [L15] EXPR 2.5 [L15] EXPR main__x / 2.5 [L15] main__x1 = main__x / 2.5 [L12] COND FALSE !(main__x1 != main__x) [L21] int __tmp_1; [L22] __tmp_1 = main__x == 0 [L23] int __VERIFIER_assert__cond; [L24] __VERIFIER_assert__cond = __tmp_1 [L25] COND TRUE __VERIFIER_assert__cond == 0 [L27] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 242.2s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 53.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 18 SDtfs, 3 SDslu, 40 SDs, 0 SdLazy, 14 SolverSat, 2 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 13.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 18 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 72.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 4.9s SatisfiabilityAnalysisTime, 33.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 12 QuantifiedInterpolants, 5894 SizeOfPredicates, 13 NumberOfNonLiveVariables, 105 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 0/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...