./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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 ../sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.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 8dd2b259de573dae381590d9c9a53c821e05ecea3ef79b47acb4a28edd56bf9a --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 13:51:47,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 13:51:47,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 13:51:47,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 13:51:47,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 13:51:47,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 13:51:47,718 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 13:51:47,720 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 13:51:47,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 13:51:47,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 13:51:47,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 13:51:47,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 13:51:47,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 13:51:47,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 13:51:47,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 13:51:47,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 13:51:47,735 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 13:51:47,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 13:51:47,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 13:51:47,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 13:51:47,744 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 13:51:47,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 13:51:47,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 13:51:47,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 13:51:47,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 13:51:47,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 13:51:47,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 13:51:47,754 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 13:51:47,756 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 13:51:47,756 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 13:51:47,757 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 13:51:47,757 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 13:51:47,759 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 13:51:47,759 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 13:51:47,760 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 13:51:47,761 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 13:51:47,761 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 13:51:47,762 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 13:51:47,763 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 13:51:47,763 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 13:51:47,763 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 13:51:47,765 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 13:51:47,767 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 13:51:47,796 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 13:51:47,796 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 13:51:47,797 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 13:51:47,797 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 13:51:47,797 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 13:51:47,798 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 13:51:47,798 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 13:51:47,798 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 13:51:47,799 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 13:51:47,799 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 13:51:47,800 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 13:51:47,800 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 13:51:47,800 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 13:51:47,800 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 13:51:47,800 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 13:51:47,800 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 13:51:47,801 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 13:51:47,801 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 13:51:47,801 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 13:51:47,802 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 13:51:47,802 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 13:51:47,802 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 13:51:47,803 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 13:51:47,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 13:51:47,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:51:47,803 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 13:51:47,803 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 13:51:47,803 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 13:51:47,804 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 13:51:47,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 13:51:47,804 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 13:51:47,804 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 13:51:47,804 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 13:51:47,805 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8dd2b259de573dae381590d9c9a53c821e05ecea3ef79b47acb4a28edd56bf9a [2022-07-19 13:51:48,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 13:51:48,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 13:51:48,062 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 13:51:48,063 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 13:51:48,064 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 13:51:48,065 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c [2022-07-19 13:51:48,123 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5eaf9dc57/a0b18b82ef454412abbdf5fea7441e25/FLAG840baa98e [2022-07-19 13:51:48,471 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 13:51:48,472 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c [2022-07-19 13:51:48,478 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5eaf9dc57/a0b18b82ef454412abbdf5fea7441e25/FLAG840baa98e [2022-07-19 13:51:48,497 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5eaf9dc57/a0b18b82ef454412abbdf5fea7441e25 [2022-07-19 13:51:48,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 13:51:48,500 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 13:51:48,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 13:51:48,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 13:51:48,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 13:51:48,507 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:51:48" (1/1) ... [2022-07-19 13:51:48,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ad8635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:51:48, skipping insertion in model container [2022-07-19 13:51:48,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:51:48" (1/1) ... [2022-07-19 13:51:48,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 13:51:48,527 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 13:51:48,667 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c[674,687] [2022-07-19 13:51:48,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:51:48,682 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 13:51:48,697 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c[674,687] [2022-07-19 13:51:48,699 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:51:48,712 INFO L208 MainTranslator]: Completed translation [2022-07-19 13:51:48,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:51:48 WrapperNode [2022-07-19 13:51:48,712 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 13:51:48,714 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 13:51:48,714 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 13:51:48,715 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 13:51:48,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:51:48" (1/1) ... [2022-07-19 13:51:48,728 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:51:48" (1/1) ... [2022-07-19 13:51:48,743 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28 [2022-07-19 13:51:48,743 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 13:51:48,744 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 13:51:48,744 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 13:51:48,744 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 13:51:48,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:51:48" (1/1) ... [2022-07-19 13:51:48,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:51:48" (1/1) ... [2022-07-19 13:51:48,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:51:48" (1/1) ... [2022-07-19 13:51:48,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:51:48" (1/1) ... [2022-07-19 13:51:48,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:51:48" (1/1) ... [2022-07-19 13:51:48,761 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:51:48" (1/1) ... [2022-07-19 13:51:48,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:51:48" (1/1) ... [2022-07-19 13:51:48,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 13:51:48,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 13:51:48,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 13:51:48,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 13:51:48,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:51:48" (1/1) ... [2022-07-19 13:51:48,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:51:48,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:51:48,809 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 13:51:48,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 13:51:48,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 13:51:48,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 13:51:48,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 13:51:48,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 13:51:48,904 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 13:51:48,906 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 13:51:48,980 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 13:51:48,984 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 13:51:48,985 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 13:51:48,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:51:48 BoogieIcfgContainer [2022-07-19 13:51:48,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 13:51:48,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 13:51:48,988 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 13:51:48,995 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 13:51:48,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 01:51:48" (1/3) ... [2022-07-19 13:51:48,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488c4f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:51:48, skipping insertion in model container [2022-07-19 13:51:48,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:51:48" (2/3) ... [2022-07-19 13:51:48,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488c4f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:51:48, skipping insertion in model container [2022-07-19 13:51:48,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:51:48" (3/3) ... [2022-07-19 13:51:48,998 INFO L111 eAbstractionObserver]: Analyzing ICFG Double_div_bad.i.p+cfa-reducer.c [2022-07-19 13:51:49,016 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 13:51:49,016 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 13:51:49,058 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 13:51:49,063 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@47ae1b23, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@14d58dbe [2022-07-19 13:51:49,064 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 13:51:49,067 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 13:51:49,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-19 13:51:49,073 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:51:49,073 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-19 13:51:49,074 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:51:49,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:51:49,079 INFO L85 PathProgramCache]: Analyzing trace with hash 28696774, now seen corresponding path program 1 times [2022-07-19 13:51:49,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:51:49,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455357644] [2022-07-19 13:51:49,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:51:49,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:51:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 13:51:49,199 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 13:51:49,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 13:51:49,242 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 13:51:49,246 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 13:51:49,248 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 13:51:49,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 13:51:49,256 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-19 13:51:49,260 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 13:51:49,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 01:51:49 BoogieIcfgContainer [2022-07-19 13:51:49,282 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 13:51:49,286 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 13:51:49,286 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 13:51:49,286 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 13:51:49,287 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:51:48" (3/4) ... [2022-07-19 13:51:49,291 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-19 13:51:49,291 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 13:51:49,293 INFO L158 Benchmark]: Toolchain (without parser) took 792.05ms. Allocated memory is still 102.8MB. Free memory was 63.1MB in the beginning and 53.0MB in the end (delta: 10.0MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2022-07-19 13:51:49,294 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 102.8MB. Free memory is still 79.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:51:49,295 INFO L158 Benchmark]: CACSL2BoogieTranslator took 210.11ms. Allocated memory is still 102.8MB. Free memory was 62.9MB in the beginning and 77.9MB in the end (delta: -15.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 13:51:49,296 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.41ms. Allocated memory is still 102.8MB. Free memory was 77.9MB in the beginning and 76.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 13:51:49,297 INFO L158 Benchmark]: Boogie Preprocessor took 25.46ms. Allocated memory is still 102.8MB. Free memory was 76.6MB in the beginning and 75.6MB in the end (delta: 993.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:51:49,301 INFO L158 Benchmark]: RCFGBuilder took 215.45ms. Allocated memory is still 102.8MB. Free memory was 75.6MB in the beginning and 66.9MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 13:51:49,302 INFO L158 Benchmark]: TraceAbstraction took 294.37ms. Allocated memory is still 102.8MB. Free memory was 66.2MB in the beginning and 53.3MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-19 13:51:49,303 INFO L158 Benchmark]: Witness Printer took 5.80ms. Allocated memory is still 102.8MB. Free memory was 53.3MB in the beginning and 53.0MB in the end (delta: 314.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:51:49,310 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 102.8MB. Free memory is still 79.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 210.11ms. Allocated memory is still 102.8MB. Free memory was 62.9MB in the beginning and 77.9MB in the end (delta: -15.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.41ms. Allocated memory is still 102.8MB. Free memory was 77.9MB in the beginning and 76.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.46ms. Allocated memory is still 102.8MB. Free memory was 76.6MB in the beginning and 75.6MB in the end (delta: 993.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 215.45ms. Allocated memory is still 102.8MB. Free memory was 75.6MB in the beginning and 66.9MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 294.37ms. Allocated memory is still 102.8MB. Free memory was 66.2MB in the beginning and 53.3MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 5.80ms. Allocated memory is still 102.8MB. Free memory was 53.3MB in the beginning and 53.0MB in the end (delta: 314.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 someBinaryDOUBLEComparisonOperation at line 12, overapproximation of someBinaryArithmeticDOUBLEoperation at line 10. Possible FailurePath: [L1] int __return_main; VAL [__return_main=0] [L9] double main__x = 1.0; [L10] double main__x1 = main__x / 1.6; VAL [__return_main=0, main__x=1] [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, __tmp_1=0, __VERIFIER_assert__cond=0, main__x=1] [L25] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main__x=1] [L27] reach_error() VAL [__return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main__x=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 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 [2022-07-19 13:51:49,351 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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 ../sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.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 8dd2b259de573dae381590d9c9a53c821e05ecea3ef79b47acb4a28edd56bf9a --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 13:51:51,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 13:51:51,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 13:51:51,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 13:51:51,321 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 13:51:51,323 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 13:51:51,324 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 13:51:51,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 13:51:51,327 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 13:51:51,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 13:51:51,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 13:51:51,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 13:51:51,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 13:51:51,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 13:51:51,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 13:51:51,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 13:51:51,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 13:51:51,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 13:51:51,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 13:51:51,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 13:51:51,342 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 13:51:51,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 13:51:51,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 13:51:51,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 13:51:51,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 13:51:51,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 13:51:51,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 13:51:51,354 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 13:51:51,355 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 13:51:51,355 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 13:51:51,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 13:51:51,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 13:51:51,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 13:51:51,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 13:51:51,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 13:51:51,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 13:51:51,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 13:51:51,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 13:51:51,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 13:51:51,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 13:51:51,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 13:51:51,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 13:51:51,364 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-19 13:51:51,385 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 13:51:51,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 13:51:51,387 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 13:51:51,389 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 13:51:51,389 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 13:51:51,390 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 13:51:51,390 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 13:51:51,391 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 13:51:51,391 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 13:51:51,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 13:51:51,392 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 13:51:51,392 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 13:51:51,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 13:51:51,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 13:51:51,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 13:51:51,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 13:51:51,393 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-19 13:51:51,393 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-19 13:51:51,394 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-19 13:51:51,394 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 13:51:51,394 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 13:51:51,394 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 13:51:51,395 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 13:51:51,395 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 13:51:51,395 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 13:51:51,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 13:51:51,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:51:51,396 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 13:51:51,396 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 13:51:51,396 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 13:51:51,397 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-19 13:51:51,397 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-19 13:51:51,397 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 13:51:51,397 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 13:51:51,398 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 13:51:51,398 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-19 13:51:51,398 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8dd2b259de573dae381590d9c9a53c821e05ecea3ef79b47acb4a28edd56bf9a [2022-07-19 13:51:51,743 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 13:51:51,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 13:51:51,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 13:51:51,775 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 13:51:51,776 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 13:51:51,778 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c [2022-07-19 13:51:51,841 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2988d9d81/a5e19abce35b45cbb8ecec17a50efd78/FLAGfb0c5db47 [2022-07-19 13:51:52,242 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 13:51:52,243 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c [2022-07-19 13:51:52,248 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2988d9d81/a5e19abce35b45cbb8ecec17a50efd78/FLAGfb0c5db47 [2022-07-19 13:51:52,266 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2988d9d81/a5e19abce35b45cbb8ecec17a50efd78 [2022-07-19 13:51:52,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 13:51:52,271 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 13:51:52,272 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 13:51:52,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 13:51:52,275 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 13:51:52,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:51:52" (1/1) ... [2022-07-19 13:51:52,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2286ad52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:51:52, skipping insertion in model container [2022-07-19 13:51:52,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:51:52" (1/1) ... [2022-07-19 13:51:52,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 13:51:52,296 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 13:51:52,446 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c[674,687] [2022-07-19 13:51:52,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:51:52,470 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 13:51:52,485 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c[674,687] [2022-07-19 13:51:52,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:51:52,503 INFO L208 MainTranslator]: Completed translation [2022-07-19 13:51:52,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:51:52 WrapperNode [2022-07-19 13:51:52,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 13:51:52,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 13:51:52,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 13:51:52,506 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 13:51:52,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:51:52" (1/1) ... [2022-07-19 13:51:52,535 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:51:52" (1/1) ... [2022-07-19 13:51:52,548 INFO L137 Inliner]: procedures = 13, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2022-07-19 13:51:52,549 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 13:51:52,550 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 13:51:52,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 13:51:52,550 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 13:51:52,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:51:52" (1/1) ... [2022-07-19 13:51:52,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:51:52" (1/1) ... [2022-07-19 13:51:52,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:51:52" (1/1) ... [2022-07-19 13:51:52,558 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:51:52" (1/1) ... [2022-07-19 13:51:52,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:51:52" (1/1) ... [2022-07-19 13:51:52,563 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:51:52" (1/1) ... [2022-07-19 13:51:52,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:51:52" (1/1) ... [2022-07-19 13:51:52,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 13:51:52,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 13:51:52,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 13:51:52,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 13:51:52,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:51:52" (1/1) ... [2022-07-19 13:51:52,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:51:52,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:51:52,596 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 13:51:52,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 13:51:52,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 13:51:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 13:51:52,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 13:51:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-19 13:51:52,716 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 13:51:52,717 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 13:51:56,524 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 13:51:56,529 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 13:51:56,529 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 13:51:56,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:51:56 BoogieIcfgContainer [2022-07-19 13:51:56,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 13:51:56,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 13:51:56,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 13:51:56,534 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 13:51:56,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 01:51:52" (1/3) ... [2022-07-19 13:51:56,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd443f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:51:56, skipping insertion in model container [2022-07-19 13:51:56,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:51:52" (2/3) ... [2022-07-19 13:51:56,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd443f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:51:56, skipping insertion in model container [2022-07-19 13:51:56,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:51:56" (3/3) ... [2022-07-19 13:51:56,537 INFO L111 eAbstractionObserver]: Analyzing ICFG Double_div_bad.i.p+cfa-reducer.c [2022-07-19 13:51:56,549 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 13:51:56,550 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 13:51:56,603 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 13:51:56,608 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@654ab476, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@d46ec46 [2022-07-19 13:51:56,609 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 13:51:56,613 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 13:51:56,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-19 13:51:56,617 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:51:56,618 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-19 13:51:56,618 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:51:56,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:51:56,623 INFO L85 PathProgramCache]: Analyzing trace with hash 28696774, now seen corresponding path program 1 times [2022-07-19 13:51:56,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 13:51:56,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1869179798] [2022-07-19 13:51:56,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:51:56,657 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 13:51:56,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 13:51:56,679 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 13:51:56,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-19 13:51:57,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:51:57,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 13:51:57,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:52:02,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:52:02,684 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 13:52:02,685 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 13:52:02,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1869179798] [2022-07-19 13:52:02,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1869179798] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:52:02,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:52:02,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 13:52:02,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416964238] [2022-07-19 13:52:02,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:52:02,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 13:52:02,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 13:52:02,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 13:52:02,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 13:52:02,723 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 13:52:11,063 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 13:52:12,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 13:52:12,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:52:12,937 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2022-07-19 13:52:13,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 13:52:13,571 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-07-19 13:52:13,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:52:13,577 INFO L225 Difference]: With dead ends: 16 [2022-07-19 13:52:13,577 INFO L226 Difference]: Without dead ends: 7 [2022-07-19 13:52:13,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 13:52:13,582 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 8 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-07-19 13:52:13,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 12 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-07-19 13:52:13,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2022-07-19 13:52:13,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-07-19 13:52:13,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 13:52:13,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2022-07-19 13:52:13,609 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2022-07-19 13:52:13,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:52:13,609 INFO L495 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2022-07-19 13:52:13,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 13:52:13,610 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2022-07-19 13:52:13,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-19 13:52:13,610 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:52:13,610 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-19 13:52:13,639 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-19 13:52:13,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 13:52:13,824 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:52:13,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:52:13,825 INFO L85 PathProgramCache]: Analyzing trace with hash 889537510, now seen corresponding path program 1 times [2022-07-19 13:52:13,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 13:52:13,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1731546571] [2022-07-19 13:52:13,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:52:13,826 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 13:52:13,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 13:52:13,829 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 13:52:13,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-19 13:52:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:52:15,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-19 13:52:15,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:52:26,054 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 8.0 5.0)))) (and (= (fp.div roundNearestTiesToEven |c_ULTIMATE.start_main_~main__x~0#1| .cse0) |c_ULTIMATE.start_main_~main__x1~0#1|) (= |c_ULTIMATE.start_main_~main__x~0#1| (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse0)))) is different from true [2022-07-19 13:52:26,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-07-19 13:52:26,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 13:52:31,110 WARN L833 $PredicateComparison]: unable to prove that (not (fp.eq (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~main__x1~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 8.0 5.0))) |c_ULTIMATE.start_main_~main__x1~0#1|)) is different from false [2022-07-19 13:52:33,251 WARN L855 $PredicateComparison]: unable to prove that (not (fp.eq (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~main__x1~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 8.0 5.0))) |c_ULTIMATE.start_main_~main__x1~0#1|)) is different from true [2022-07-19 13:52:40,093 WARN L833 $PredicateComparison]: unable to prove that (not (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 8.0 5.0)))) (let ((.cse0 (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) .cse1))) (fp.eq (fp.div c_currentRoundingMode .cse0 .cse1) .cse0)))) is different from false [2022-07-19 13:52:42,385 WARN L855 $PredicateComparison]: unable to prove that (not (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 8.0 5.0)))) (let ((.cse0 (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) .cse1))) (fp.eq (fp.div c_currentRoundingMode .cse0 .cse1) .cse0)))) is different from true [2022-07-19 13:52:42,386 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-07-19 13:52:42,386 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 13:52:42,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1731546571] [2022-07-19 13:52:42,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1731546571] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 13:52:42,387 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-19 13:52:42,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-07-19 13:52:42,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861255511] [2022-07-19 13:52:42,387 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-19 13:52:42,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 13:52:42,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 13:52:42,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 13:52:42,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=13, Unknown=5, NotChecked=24, Total=56 [2022-07-19 13:52:42,390 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 13:52:44,745 WARN L855 $PredicateComparison]: unable to prove that (and (not (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 8.0 5.0)))) (let ((.cse0 (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) .cse1))) (fp.eq (fp.div c_currentRoundingMode .cse0 .cse1) .cse0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2022-07-19 13:52:46,917 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 8.0 5.0)))) (and (not (fp.eq (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~main__x1~0#1| .cse0) |c_ULTIMATE.start_main_~main__x1~0#1|)) (= (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) .cse0) |c_ULTIMATE.start_main_~main__x1~0#1|) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2022-07-19 13:52:57,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 13:52:59,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 13:53:00,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 13:53:02,778 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 13:53:02,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:53:02,945 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2022-07-19 13:53:02,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 13:53:02,946 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-07-19 13:53:02,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:53:02,947 INFO L225 Difference]: With dead ends: 11 [2022-07-19 13:53:02,947 INFO L226 Difference]: Without dead ends: 8 [2022-07-19 13:53:02,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 28.5s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=8, NotChecked=60, Total=110 [2022-07-19 13:53:02,948 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-07-19 13:53:02,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 2 Unknown, 17 Unchecked, 7.6s Time] [2022-07-19 13:53:02,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2022-07-19 13:53:02,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-07-19 13:53:02,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 13:53:02,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2022-07-19 13:53:02,950 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2022-07-19 13:53:02,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:53:02,950 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2022-07-19 13:53:02,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 13:53:02,951 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2022-07-19 13:53:02,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-19 13:53:02,951 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:53:02,951 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-07-19 13:53:02,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-19 13:53:03,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 13:53:03,163 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:53:03,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:53:03,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1805796550, now seen corresponding path program 2 times [2022-07-19 13:53:03,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 13:53:03,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [552030477] [2022-07-19 13:53:03,164 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-19 13:53:03,164 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 13:53:03,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 13:53:03,166 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 13:53:03,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-19 13:53:05,106 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-19 13:53:05,106 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 13:53:05,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-19 13:53:05,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:53:17,283 WARN L233 SmtUtils]: Spent 5.11s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 813] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-19 13:53:19,991 WARN L855 $PredicateComparison]: unable to prove that (and (= (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 8.0 5.0)))) (fp.div c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) .cse0) .cse0)) |c_ULTIMATE.start_main_~main__x1~0#1|) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2022-07-19 13:53:29,699 WARN L233 SmtUtils]: Spent 5.77s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 813] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-19 13:53:31,973 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 8.0 5.0)))) (and (= |c_ULTIMATE.start_main_~main__x~0#1| (fp.div c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) .cse0) .cse0)) (= (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~main__x~0#1| .cse0) |c_ULTIMATE.start_main_~main__x1~0#1|) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2022-07-19 13:53:32,031 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-07-19 13:53:32,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 13:53:40,996 WARN L833 $PredicateComparison]: unable to prove that (or (not (fp.eq (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~main__x1~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 8.0 5.0))) |c_ULTIMATE.start_main_~main__x1~0#1|)) (fp.eq |c_ULTIMATE.start_main_~main__x1~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) is different from false [2022-07-19 13:53:43,154 WARN L855 $PredicateComparison]: unable to prove that (or (not (fp.eq (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~main__x1~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 8.0 5.0))) |c_ULTIMATE.start_main_~main__x1~0#1|)) (fp.eq |c_ULTIMATE.start_main_~main__x1~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) is different from true [2022-07-19 13:53:48,272 WARN L233 SmtUtils]: Spent 5.11s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 813] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-19 13:53:55,465 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 8.0 5.0)))) (let ((.cse0 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~main__x1~0#1| .cse1))) (or (not (fp.eq (fp.div c_currentRoundingMode .cse0 .cse1) .cse0)) (fp.eq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) is different from false [2022-07-19 13:53:57,763 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 8.0 5.0)))) (let ((.cse0 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~main__x1~0#1| .cse1))) (or (not (fp.eq (fp.div c_currentRoundingMode .cse0 .cse1) .cse0)) (fp.eq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) is different from true [2022-07-19 13:54:03,208 WARN L233 SmtUtils]: Spent 5.44s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 813] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-19 13:54:08,895 WARN L233 SmtUtils]: Spent 5.69s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 813] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-19 13:54:11,342 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 8.0 5.0)))) (let ((.cse0 (fp.div c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) .cse1) .cse1))) (or (not (fp.eq (fp.div c_currentRoundingMode .cse0 .cse1) .cse0)) (fp.eq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) is different from false [2022-07-19 13:54:13,783 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 8.0 5.0)))) (let ((.cse0 (fp.div c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) .cse1) .cse1))) (or (not (fp.eq (fp.div c_currentRoundingMode .cse0 .cse1) .cse0)) (fp.eq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) is different from true [2022-07-19 13:54:13,784 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-07-19 13:54:13,784 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 13:54:13,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [552030477] [2022-07-19 13:54:13,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [552030477] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 13:54:13,784 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-19 13:54:13,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2022-07-19 13:54:13,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390526694] [2022-07-19 13:54:13,785 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-19 13:54:13,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-19 13:54:13,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 13:54:13,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-19 13:54:13,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=8, NotChecked=60, Total=110 [2022-07-19 13:54:13,786 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 13:54:16,302 WARN L855 $PredicateComparison]: unable to prove that (and (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 8.0 5.0)))) (let ((.cse0 (fp.div c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) .cse1) .cse1))) (or (not (fp.eq (fp.div c_currentRoundingMode .cse0 .cse1) .cse0)) (fp.eq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2022-07-19 13:54:18,610 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 8.0 5.0)))) (and (let ((.cse0 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~main__x1~0#1| .cse1))) (or (not (fp.eq (fp.div c_currentRoundingMode .cse0 .cse1) .cse0)) (fp.eq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) (= (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) .cse1) |c_ULTIMATE.start_main_~main__x1~0#1|) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2022-07-19 13:54:21,507 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 8.0 5.0)))) (and (= (fp.div c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) .cse0) .cse0) |c_ULTIMATE.start_main_~main__x1~0#1|) (or (not (fp.eq (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~main__x1~0#1| .cse0) |c_ULTIMATE.start_main_~main__x1~0#1|)) (fp.eq |c_ULTIMATE.start_main_~main__x1~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2022-07-19 13:54:43,497 WARN L233 SmtUtils]: Spent 17.86s on a formula simplification. DAG size of input: 21 DAG size of output: 15 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-19 13:54:45,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 13:54:50,600 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 13:54:55,578 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 13:54:55,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:54:55,784 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2022-07-19 13:54:55,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 13:54:55,785 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-19 13:54:55,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:54:55,786 INFO L225 Difference]: With dead ends: 14 [2022-07-19 13:54:55,786 INFO L226 Difference]: Without dead ends: 10 [2022-07-19 13:54:55,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 57.5s TimeCoverageRelationStatistics Valid=41, Invalid=50, Unknown=13, NotChecked=168, Total=272 [2022-07-19 13:54:55,788 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 6 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 32 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-07-19 13:54:55,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 9 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 2 Unknown, 32 Unchecked, 7.6s Time] [2022-07-19 13:54:55,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-07-19 13:54:55,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-07-19 13:54:55,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 13:54:55,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2022-07-19 13:54:55,791 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2022-07-19 13:54:55,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:54:55,791 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2022-07-19 13:54:55,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 13:54:55,791 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2022-07-19 13:54:55,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-19 13:54:55,792 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:54:55,792 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1] [2022-07-19 13:54:55,837 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-19 13:54:55,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 13:54:55,993 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:54:55,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:54:55,994 INFO L85 PathProgramCache]: Analyzing trace with hash 201697478, now seen corresponding path program 3 times [2022-07-19 13:54:55,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 13:54:55,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [870062739] [2022-07-19 13:54:55,994 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-19 13:54:55,994 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 13:54:55,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 13:54:55,996 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 13:54:55,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-19 13:54:59,223 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-07-19 13:54:59,223 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 13:54:59,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-19 13:54:59,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:55:09,781 WARN L233 SmtUtils]: Spent 5.09s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 813] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-19 13:55:12,276 WARN L855 $PredicateComparison]: unable to prove that (and (= (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 8.0 5.0)))) (fp.div c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) .cse0) .cse0)) |c_ULTIMATE.start_main_~main__x1~0#1|) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2022-07-19 13:55:17,996 WARN L233 SmtUtils]: Spent 5.68s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 813] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-19 13:55:22,086 WARN L855 $PredicateComparison]: unable to prove that (and (= (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 8.0 5.0)))) (fp.div c_currentRoundingMode (fp.div c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) .cse0) .cse0) .cse0)) |c_ULTIMATE.start_main_~main__x1~0#1|) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2022-07-19 13:55:28,396 WARN L233 SmtUtils]: Spent 6.26s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 813] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-19 13:55:33,091 WARN L855 $PredicateComparison]: unable to prove that (and (= (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 8.0 5.0)))) (fp.div c_currentRoundingMode (fp.div c_currentRoundingMode (fp.div c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) .cse0) .cse0) .cse0) .cse0)) |c_ULTIMATE.start_main_~main__x1~0#1|) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2022-07-19 13:55:44,544 WARN L233 SmtUtils]: Spent 6.84s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 813] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-19 13:56:03,491 WARN L233 SmtUtils]: Spent 12.59s on a formula simplification that was a NOOP. DAG size: 17 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-19 13:56:03,561 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 1 times theorem prover too weak. 0 trivial. 9 not checked. [2022-07-19 13:56:03,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 13:56:13,506 WARN L833 $PredicateComparison]: unable to prove that (or (not (fp.eq (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~main__x1~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 8.0 5.0))) |c_ULTIMATE.start_main_~main__x1~0#1|)) (fp.eq |c_ULTIMATE.start_main_~main__x1~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) is different from false [2022-07-19 13:56:15,654 WARN L855 $PredicateComparison]: unable to prove that (or (not (fp.eq (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~main__x1~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 8.0 5.0))) |c_ULTIMATE.start_main_~main__x1~0#1|)) (fp.eq |c_ULTIMATE.start_main_~main__x1~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) is different from true [2022-07-19 13:56:20,771 WARN L233 SmtUtils]: Spent 5.11s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 813] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-19 13:56:27,943 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 8.0 5.0)))) (let ((.cse0 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~main__x1~0#1| .cse1))) (or (not (fp.eq (fp.div c_currentRoundingMode .cse0 .cse1) .cse0)) (fp.eq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) is different from false [2022-07-19 13:56:30,237 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 8.0 5.0)))) (let ((.cse0 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~main__x1~0#1| .cse1))) (or (not (fp.eq (fp.div c_currentRoundingMode .cse0 .cse1) .cse0)) (fp.eq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) is different from true [2022-07-19 13:56:35,662 WARN L233 SmtUtils]: Spent 5.42s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 813] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)