./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-esbmc-regression/Float_div_bad.i.p+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ee8e70e7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-esbmc-regression/Float_div_bad.i.p+cfa-reducer.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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 14286cb21d81f224a2bc0c145c98a5c3f3fcd807 ............................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-esbmc-regression/Float_div_bad.i.p+cfa-reducer.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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 14286cb21d81f224a2bc0c145c98a5c3f3fcd807 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.0-ee8e70e [2020-10-24 14:54:30,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:54:30,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:54:31,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:54:31,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:54:31,037 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:54:31,043 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:54:31,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:54:31,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:54:31,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:54:31,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:54:31,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:54:31,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:54:31,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:54:31,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:54:31,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:54:31,071 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:54:31,074 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:54:31,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:54:31,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:54:31,087 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:54:31,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:54:31,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:54:31,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:54:31,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:54:31,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:54:31,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:54:31,105 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:54:31,106 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:54:31,107 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:54:31,107 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:54:31,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:54:31,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:54:31,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:54:31,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:54:31,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:54:31,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:54:31,114 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:54:31,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:54:31,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:54:31,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:54:31,119 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 14:54:31,175 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:54:31,176 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:54:31,177 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:54:31,178 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:54:31,178 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:54:31,178 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:54:31,179 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:54:31,179 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 14:54:31,179 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:54:31,179 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:54:31,180 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:54:31,180 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:54:31,180 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:54:31,181 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:54:31,181 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:54:31,181 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:54:31,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:54:31,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:54:31,182 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:54:31,182 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:54:31,183 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:54:31,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:54:31,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:54:31,184 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:54:31,184 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:54:31,184 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 14:54:31,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 14:54:31,185 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:54:31,185 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:54:31,185 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14286cb21d81f224a2bc0c145c98a5c3f3fcd807 [2020-10-24 14:54:31,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:54:31,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:54:31,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:54:31,667 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:54:31,673 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:54:31,674 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/Float_div_bad.i.p+cfa-reducer.c [2020-10-24 14:54:31,759 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f66ef175/9683d05ff8e64b0d867daa7220b72494/FLAG5d0f3a6e8 [2020-10-24 14:54:32,486 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:54:32,487 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/Float_div_bad.i.p+cfa-reducer.c [2020-10-24 14:54:32,495 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f66ef175/9683d05ff8e64b0d867daa7220b72494/FLAG5d0f3a6e8 [2020-10-24 14:54:32,885 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f66ef175/9683d05ff8e64b0d867daa7220b72494 [2020-10-24 14:54:32,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:54:32,899 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:54:32,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:54:32,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:54:32,911 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:54:32,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:54:32" (1/1) ... [2020-10-24 14:54:32,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b8944f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:32, skipping insertion in model container [2020-10-24 14:54:32,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:54:32" (1/1) ... [2020-10-24 14:54:32,960 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:54:33,010 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:54:33,188 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:54:33,198 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:54:33,216 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:54:33,235 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:54:33,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:33 WrapperNode [2020-10-24 14:54:33,236 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:54:33,238 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:54:33,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:54:33,238 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:54:33,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:33" (1/1) ... [2020-10-24 14:54:33,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:33" (1/1) ... [2020-10-24 14:54:33,274 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 14:54:33,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 14:54:33,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 14:54:33,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 14:54:33,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:33" (1/1) ... [2020-10-24 14:54:33,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:33" (1/1) ... [2020-10-24 14:54:33,292 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:33" (1/1) ... [2020-10-24 14:54:33,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:33" (1/1) ... [2020-10-24 14:54:33,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:33" (1/1) ... [2020-10-24 14:54:33,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:33" (1/1) ... [2020-10-24 14:54:33,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:33" (1/1) ... [2020-10-24 14:54:33,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 14:54:33,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 14:54:33,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 14:54:33,304 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 14:54:33,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:33" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:54:33,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 14:54:33,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 14:54:33,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 14:54:33,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 14:54:33,589 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 14:54:33,590 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-24 14:54:33,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:54:33 BoogieIcfgContainer [2020-10-24 14:54:33,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 14:54:33,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 14:54:33,593 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 14:54:33,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 14:54:33,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:54:32" (1/3) ... [2020-10-24 14:54:33,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a71fa51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:54:33, skipping insertion in model container [2020-10-24 14:54:33,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:33" (2/3) ... [2020-10-24 14:54:33,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a71fa51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:54:33, skipping insertion in model container [2020-10-24 14:54:33,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:54:33" (3/3) ... [2020-10-24 14:54:33,600 INFO L111 eAbstractionObserver]: Analyzing ICFG Float_div_bad.i.p+cfa-reducer.c [2020-10-24 14:54:33,613 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 14:54:33,621 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 14:54:33,634 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 14:54:33,661 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 14:54:33,661 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 14:54:33,661 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 14:54:33,661 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 14:54:33,661 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 14:54:33,662 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 14:54:33,662 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 14:54:33,662 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 14:54:33,676 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-10-24 14:54:33,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-24 14:54:33,682 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:54:33,682 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-24 14:54:33,683 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:54:33,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:54:33,689 INFO L82 PathProgramCache]: Analyzing trace with hash 28696774, now seen corresponding path program 1 times [2020-10-24 14:54:33,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 14:54:33,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337235877] [2020-10-24 14:54:33,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 14:54:33,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 14:54:33,812 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 14:54:33,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 14:54:33,836 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 14:54:33,873 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 14:54:33,874 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 14:54:33,874 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 14:54:33,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:54:33 BoogieIcfgContainer [2020-10-24 14:54:33,916 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 14:54:33,918 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 14:54:33,918 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 14:54:33,918 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 14:54:33,919 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:54:33" (3/4) ... [2020-10-24 14:54:33,930 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 14:54:33,930 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 14:54:33,935 INFO L168 Benchmark]: Toolchain (without parser) took 1038.58 ms. Allocated memory was 39.8 MB in the beginning and 48.2 MB in the end (delta: 8.4 MB). Free memory was 16.9 MB in the beginning and 21.5 MB in the end (delta: -4.6 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB. [2020-10-24 14:54:33,938 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 39.8 MB. Free memory was 24.5 MB in the beginning and 24.4 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:54:33,940 INFO L168 Benchmark]: CACSL2BoogieTranslator took 331.20 ms. Allocated memory is still 39.8 MB. Free memory was 16.3 MB in the beginning and 16.2 MB in the end (delta: 16.4 kB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-10-24 14:54:33,942 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.27 ms. Allocated memory is still 39.8 MB. Free memory was 16.2 MB in the beginning and 14.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:54:33,944 INFO L168 Benchmark]: Boogie Preprocessor took 28.13 ms. Allocated memory was 39.8 MB in the beginning and 48.2 MB in the end (delta: 8.4 MB). Free memory was 14.8 MB in the beginning and 32.2 MB in the end (delta: -17.4 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. [2020-10-24 14:54:33,945 INFO L168 Benchmark]: RCFGBuilder took 287.52 ms. Allocated memory is still 48.2 MB. Free memory was 32.1 MB in the beginning and 22.3 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-24 14:54:33,946 INFO L168 Benchmark]: TraceAbstraction took 322.51 ms. Allocated memory is still 48.2 MB. Free memory was 21.7 MB in the beginning and 21.7 MB in the end (delta: 9.4 kB). Peak memory consumption was 703.3 kB. Max. memory is 16.1 GB. [2020-10-24 14:54:33,948 INFO L168 Benchmark]: Witness Printer took 13.08 ms. Allocated memory is still 48.2 MB. Free memory was 21.7 MB in the beginning and 21.5 MB in the end (delta: 243.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:54:33,966 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 39.8 MB. Free memory was 24.5 MB in the beginning and 24.4 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 331.20 ms. Allocated memory is still 39.8 MB. Free memory was 16.3 MB in the beginning and 16.2 MB in the end (delta: 16.4 kB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.27 ms. Allocated memory is still 39.8 MB. Free memory was 16.2 MB in the beginning and 14.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.13 ms. Allocated memory was 39.8 MB in the beginning and 48.2 MB in the end (delta: 8.4 MB). Free memory was 14.8 MB in the beginning and 32.2 MB in the end (delta: -17.4 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. * RCFGBuilder took 287.52 ms. Allocated memory is still 48.2 MB. Free memory was 32.1 MB in the beginning and 22.3 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 322.51 ms. Allocated memory is still 48.2 MB. Free memory was 21.7 MB in the beginning and 21.7 MB in the end (delta: 9.4 kB). Peak memory consumption was 703.3 kB. Max. memory is 16.1 GB. * Witness Printer took 13.08 ms. Allocated memory is still 48.2 MB. Free memory was 21.7 MB in the beginning and 21.5 MB in the end (delta: 243.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticDOUBLE_SMToperation at line 10, overapproximation of someBinaryFLOAT_SMTComparisonOperation at line 12. Possible FailurePath: [L1] int __return_main; VAL [__return_main=0] [L9] float main__x = 1.0; [L10] float main__x1 = main__x / 1.600000023841858; VAL [__return_main=0] [L12] COND FALSE !(main__x1 != main__x) [L21] int __tmp_1; [L22] __tmp_1 = main__x == 0 [L23] int __VERIFIER_assert__cond; [L24] __VERIFIER_assert__cond = __tmp_1 VAL [__return_main=0] [L25] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_main=0] [L4] __assert_fail("0", "Float_div_bad.i.p+cfa-reducer.c", 4, "reach_error") VAL [__return_main=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-ee8e70e [2020-10-24 14:54:36,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:54:36,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:54:36,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:54:36,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:54:36,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:54:36,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:54:36,700 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:54:36,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:54:36,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:54:36,705 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:54:36,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:54:36,707 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:54:36,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:54:36,710 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:54:36,712 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:54:36,713 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:54:36,714 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:54:36,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:54:36,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:54:36,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:54:36,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:54:36,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:54:36,725 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:54:36,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:54:36,729 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:54:36,730 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:54:36,731 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:54:36,732 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:54:36,733 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:54:36,733 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:54:36,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:54:36,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:54:36,737 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:54:36,738 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:54:36,739 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:54:36,740 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:54:36,740 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:54:36,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:54:36,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:54:36,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:54:36,746 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 14:54:36,810 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:54:36,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:54:36,813 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:54:36,814 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:54:36,814 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:54:36,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:54:36,815 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:54:36,815 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:54:36,815 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:54:36,816 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:54:36,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:54:36,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:54:36,818 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 14:54:36,818 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 14:54:36,818 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:54:36,818 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:54:36,819 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:54:36,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:54:36,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:54:36,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:54:36,820 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:54:36,820 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:54:36,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:54:36,821 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:54:36,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:54:36,821 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:54:36,821 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 14:54:36,822 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 14:54:36,822 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:54:36,822 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:54:36,822 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 14:54:36,823 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14286cb21d81f224a2bc0c145c98a5c3f3fcd807 [2020-10-24 14:54:37,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:54:37,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:54:37,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:54:37,338 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:54:37,339 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:54:37,340 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/Float_div_bad.i.p+cfa-reducer.c [2020-10-24 14:54:37,439 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/165955a87/78b1296ee19e430c80f9423ef26a5453/FLAG2c064c6cd [2020-10-24 14:54:38,025 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:54:38,025 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/Float_div_bad.i.p+cfa-reducer.c [2020-10-24 14:54:38,033 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/165955a87/78b1296ee19e430c80f9423ef26a5453/FLAG2c064c6cd [2020-10-24 14:54:38,371 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/165955a87/78b1296ee19e430c80f9423ef26a5453 [2020-10-24 14:54:38,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:54:38,381 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:54:38,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:54:38,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:54:38,387 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:54:38,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:54:38" (1/1) ... [2020-10-24 14:54:38,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e958476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:38, skipping insertion in model container [2020-10-24 14:54:38,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:54:38" (1/1) ... [2020-10-24 14:54:38,432 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:54:38,477 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:54:38,650 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:54:38,672 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:54:38,698 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:54:38,717 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:54:38,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:38 WrapperNode [2020-10-24 14:54:38,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:54:38,720 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:54:38,720 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:54:38,720 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:54:38,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:38" (1/1) ... [2020-10-24 14:54:38,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:38" (1/1) ... [2020-10-24 14:54:38,762 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 14:54:38,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 14:54:38,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 14:54:38,764 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 14:54:38,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:38" (1/1) ... [2020-10-24 14:54:38,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:38" (1/1) ... [2020-10-24 14:54:38,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:38" (1/1) ... [2020-10-24 14:54:38,777 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:38" (1/1) ... [2020-10-24 14:54:38,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:38" (1/1) ... [2020-10-24 14:54:38,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:38" (1/1) ... [2020-10-24 14:54:38,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:38" (1/1) ... [2020-10-24 14:54:38,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 14:54:38,805 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 14:54:38,805 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 14:54:38,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 14:54:38,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:54:38,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-10-24 14:54:38,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 14:54:38,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 14:54:38,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 14:54:38,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 14:54:38,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_FLOAT [2020-10-24 14:54:42,418 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 14:54:42,419 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-24 14:54:42,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:54:42 BoogieIcfgContainer [2020-10-24 14:54:42,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 14:54:42,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 14:54:42,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 14:54:42,451 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 14:54:42,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:54:38" (1/3) ... [2020-10-24 14:54:42,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@539c8a69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:54:42, skipping insertion in model container [2020-10-24 14:54:42,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:38" (2/3) ... [2020-10-24 14:54:42,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@539c8a69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:54:42, skipping insertion in model container [2020-10-24 14:54:42,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:54:42" (3/3) ... [2020-10-24 14:54:42,465 INFO L111 eAbstractionObserver]: Analyzing ICFG Float_div_bad.i.p+cfa-reducer.c [2020-10-24 14:54:42,492 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 14:54:42,502 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 14:54:42,528 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 14:54:42,589 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 14:54:42,591 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 14:54:42,591 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 14:54:42,592 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 14:54:42,592 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 14:54:42,592 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 14:54:42,592 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 14:54:42,592 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 14:54:42,604 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-10-24 14:54:42,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-24 14:54:42,610 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:54:42,610 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-24 14:54:42,611 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:54:42,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:54:42,616 INFO L82 PathProgramCache]: Analyzing trace with hash 28696774, now seen corresponding path program 1 times [2020-10-24 14:54:42,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:54:42,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [314252666] [2020-10-24 14:54:42,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-24 14:54:43,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:54:44,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-24 14:54:44,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:54:46,339 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet10_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet9_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_6|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_6|)))) (and (= ((_ to_fp 8 24) roundNearestTiesToEven .cse0) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) (= .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 800000011920929.0 500000000000000.0))) (= .cse0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0))) .cse1))))) (exists ((|v_ULTIMATE.start_main_#t~nondet7_6| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_6|)))) (and (= ((_ to_fp 8 24) roundNearestTiesToEven .cse2) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0))) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse2))))) is different from false [2020-10-24 14:54:46,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:54:46,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:54:49,162 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet10_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_7 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet7_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_7 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet9_6| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_6|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_6|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_6|))) (.cse4 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_7) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_7) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_7))) (.cse2 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_7) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_7) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_7)))) (or (not (= ((_ to_fp 11 53) c_~CRM 1.0) .cse0)) (not (= .cse1 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse2) .cse3))) (not (= .cse4 ((_ to_fp 8 24) c_~CRM .cse1))) (not (= ((_ to_fp 8 24) c_~CRM .cse0) .cse2)) (not (= ((_ to_fp 11 53) c_~CRM (/ 800000011920929.0 500000000000000.0)) .cse3)) (not (fp.eq .cse4 .cse2))))) is different from true [2020-10-24 14:54:49,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:54:49,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [314252666] [2020-10-24 14:54:49,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:54:49,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-24 14:54:49,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246029142] [2020-10-24 14:54:49,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 14:54:49,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:54:49,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 14:54:49,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=9, Unknown=2, NotChecked=10, Total=30 [2020-10-24 14:54:49,190 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 6 states. [2020-10-24 14:54:52,071 WARN L860 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (forall ((|v_ULTIMATE.start_main_#t~nondet10_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_7 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet7_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_7 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet9_6| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_6|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_6|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_6|))) (.cse4 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_7) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_7) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_7))) (.cse2 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_7) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_7) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_7)))) (or (not (= ((_ to_fp 11 53) c_~CRM 1.0) .cse0)) (not (= .cse1 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse2) .cse3))) (not (= .cse4 ((_ to_fp 8 24) c_~CRM .cse1))) (not (= ((_ to_fp 8 24) c_~CRM .cse0) .cse2)) (not (= ((_ to_fp 11 53) c_~CRM (/ 800000011920929.0 500000000000000.0)) .cse3)) (not (fp.eq .cse4 .cse2)))))) is different from true [2020-10-24 14:54:54,334 WARN L838 $PredicateComparison]: unable to prove that (and (not (fp.eq (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0)) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0)))) (exists ((|v_ULTIMATE.start_main_#t~nondet10_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet9_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_6|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_6|)))) (and (= ((_ to_fp 8 24) roundNearestTiesToEven .cse0) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) (= .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 800000011920929.0 500000000000000.0))) (= .cse0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0))) .cse1))))) (exists ((|v_ULTIMATE.start_main_#t~nondet7_6| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_6|)))) (and (= ((_ to_fp 8 24) roundNearestTiesToEven .cse2) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0))) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse2))))) is different from false [2020-10-24 14:54:59,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:54:59,085 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2020-10-24 14:54:59,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 14:54:59,089 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2020-10-24 14:54:59,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:54:59,097 INFO L225 Difference]: With dead ends: 17 [2020-10-24 14:54:59,097 INFO L226 Difference]: Without dead ends: 7 [2020-10-24 14:54:59,100 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=13, Invalid=11, Unknown=4, NotChecked=28, Total=56 [2020-10-24 14:54:59,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2020-10-24 14:54:59,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-10-24 14:54:59,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-24 14:54:59,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2020-10-24 14:54:59,143 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2020-10-24 14:54:59,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:54:59,144 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2020-10-24 14:54:59,144 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 14:54:59,144 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2020-10-24 14:54:59,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-24 14:54:59,145 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:54:59,145 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-24 14:54:59,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 14:54:59,360 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:54:59,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:54:59,362 INFO L82 PathProgramCache]: Analyzing trace with hash 889537510, now seen corresponding path program 1 times [2020-10-24 14:54:59,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:54:59,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1866470691] [2020-10-24 14:54:59,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-24 14:55:01,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:55:01,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-24 14:55:01,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:55:03,630 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet10_8| (_ BitVec 64)) (ULTIMATE.start_main_~main__x~0 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet7_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet9_8| (_ BitVec 64))) (let ((.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_8|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_8|))) (.cse2 (fp ((_ extract 31 31) ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) ULTIMATE.start_main_~main__x~0))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_8|)))) (and (= ((_ to_fp 11 53) c_~CRM 1.0) .cse0) (= .cse1 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse2) .cse3)) (= ((_ to_fp 11 53) c_~CRM (/ 800000011920929.0 500000000000000.0)) .cse3) (= ((_ to_fp 8 24) c_~CRM .cse0) .cse2) (= ((_ to_fp 8 24) c_~CRM .cse1) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))))))) is different from false [2020-10-24 14:55:06,125 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet12_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_6| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_6|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_6|)))) (and (= .cse0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0))) .cse1)) (= .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 800000011920929.0 500000000000000.0))) (= ((_ to_fp 8 24) roundNearestTiesToEven .cse0) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0)))))) (exists ((|v_ULTIMATE.start_main_#t~nondet10_8| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_8 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet7_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet9_8| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_8|))) (.cse3 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_8) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_8) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_8))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_8|))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_8|)))) (and (= ((_ to_fp 8 24) roundNearestTiesToEven .cse2) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0))) (= .cse2 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven .cse3) .cse4)) (= ((_ to_fp 8 24) roundNearestTiesToEven .cse5) .cse3) (= .cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 800000011920929.0 500000000000000.0))) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse5))))) is different from false [2020-10-24 14:55:06,169 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2020-10-24 14:55:06,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:55:09,279 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet12_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_9 (_ BitVec 32))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_6|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_6|))) (.cse3 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_9))) (.cse1 (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0)))) (or (not (= .cse0 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse1) .cse2))) (not (= ((_ to_fp 11 53) c_~CRM (/ 800000011920929.0 500000000000000.0)) .cse2)) (not (= ((_ to_fp 8 24) c_~CRM .cse0) .cse3)) (not (fp.eq .cse3 .cse1))))) is different from true [2020-10-24 14:55:11,868 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet10_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_9 (_ BitVec 32)) (v_ULTIMATE.start_main_~main__x1~0_10 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet7_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet9_8| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_10 (_ BitVec 32))) (let ((.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_8|))) (.cse7 ((_ to_fp 11 53) c_~CRM (/ 800000011920929.0 500000000000000.0))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_6|))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_8|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_8|))) (.cse5 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_10) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_10) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_10))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_6|))) (.cse8 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_9))) (.cse2 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_10) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_10) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_10)))) (or (not (= ((_ to_fp 11 53) c_~CRM 1.0) .cse0)) (not (= .cse1 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse2) .cse3))) (not (= .cse4 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse5) .cse6))) (not (= .cse7 .cse6)) (not (= .cse7 .cse3)) (not (= ((_ to_fp 8 24) c_~CRM .cse4) .cse2)) (not (= ((_ to_fp 8 24) c_~CRM .cse0) .cse5)) (not (= ((_ to_fp 8 24) c_~CRM .cse1) .cse8)) (not (fp.eq .cse8 .cse2))))) is different from true [2020-10-24 14:55:11,870 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2020-10-24 14:55:11,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1866470691] [2020-10-24 14:55:11,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-24 14:55:11,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2020-10-24 14:55:11,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216333085] [2020-10-24 14:55:11,872 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 14:55:11,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:55:11,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 14:55:11,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=11, Unknown=4, NotChecked=28, Total=56 [2020-10-24 14:55:11,874 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 8 states. [2020-10-24 14:55:14,122 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_#t~nondet10_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_9 (_ BitVec 32)) (v_ULTIMATE.start_main_~main__x1~0_10 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet7_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet9_8| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_10 (_ BitVec 32))) (let ((.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_8|))) (.cse7 ((_ to_fp 11 53) c_~CRM (/ 800000011920929.0 500000000000000.0))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_6|))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_8|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_8|))) (.cse5 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_10) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_10) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_10))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_6|))) (.cse8 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_9))) (.cse2 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_10) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_10) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_10)))) (or (not (= ((_ to_fp 11 53) c_~CRM 1.0) .cse0)) (not (= .cse1 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse2) .cse3))) (not (= .cse4 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse5) .cse6))) (not (= .cse7 .cse6)) (not (= .cse7 .cse3)) (not (= ((_ to_fp 8 24) c_~CRM .cse4) .cse2)) (not (= ((_ to_fp 8 24) c_~CRM .cse0) .cse5)) (not (= ((_ to_fp 8 24) c_~CRM .cse1) .cse8)) (not (fp.eq .cse8 .cse2))))) (= roundNearestTiesToEven c_~CRM)) is different from true [2020-10-24 14:55:17,032 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet10_8| (_ BitVec 64)) (ULTIMATE.start_main_~main__x~0 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet7_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet9_8| (_ BitVec 64))) (let ((.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_8|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_8|))) (.cse2 (fp ((_ extract 31 31) ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) ULTIMATE.start_main_~main__x~0))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_8|)))) (and (= ((_ to_fp 11 53) c_~CRM 1.0) .cse0) (= .cse1 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse2) .cse3)) (= ((_ to_fp 11 53) c_~CRM (/ 800000011920929.0 500000000000000.0)) .cse3) (= ((_ to_fp 8 24) c_~CRM .cse0) .cse2) (= ((_ to_fp 8 24) c_~CRM .cse1) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0)))))) (forall ((|v_ULTIMATE.start_main_#t~nondet12_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_9 (_ BitVec 32))) (let ((.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_6|))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_6|))) (.cse7 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_9))) (.cse5 (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0)))) (or (not (= .cse4 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse5) .cse6))) (not (= ((_ to_fp 11 53) c_~CRM (/ 800000011920929.0 500000000000000.0)) .cse6)) (not (= ((_ to_fp 8 24) c_~CRM .cse4) .cse7)) (not (fp.eq .cse7 .cse5)))))) is different from false [2020-10-24 14:55:19,667 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet12_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_6| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_6|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_6|)))) (and (= .cse0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0))) .cse1)) (= .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 800000011920929.0 500000000000000.0))) (= ((_ to_fp 8 24) roundNearestTiesToEven .cse0) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0)))))) (not (fp.eq (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0)) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0)))) (exists ((|v_ULTIMATE.start_main_#t~nondet10_8| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_8 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet7_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet9_8| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_8|))) (.cse3 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_8) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_8) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_8))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_8|))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_8|)))) (and (= ((_ to_fp 8 24) roundNearestTiesToEven .cse2) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0))) (= .cse2 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven .cse3) .cse4)) (= ((_ to_fp 8 24) roundNearestTiesToEven .cse5) .cse3) (= .cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 800000011920929.0 500000000000000.0))) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse5))))) is different from false [2020-10-24 14:55:24,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:55:24,468 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2020-10-24 14:55:24,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 14:55:24,469 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 6 [2020-10-24 14:55:24,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:55:24,470 INFO L225 Difference]: With dead ends: 11 [2020-10-24 14:55:24,470 INFO L226 Difference]: Without dead ends: 8 [2020-10-24 14:55:24,471 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.1s TimeCoverageRelationStatistics Valid=19, Invalid=14, Unknown=7, NotChecked=70, Total=110 [2020-10-24 14:55:24,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-10-24 14:55:24,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-10-24 14:55:24,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-10-24 14:55:24,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2020-10-24 14:55:24,475 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2020-10-24 14:55:24,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:55:24,476 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2020-10-24 14:55:24,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 14:55:24,476 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2020-10-24 14:55:24,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-24 14:55:24,477 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:55:24,477 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2020-10-24 14:55:24,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 14:55:24,689 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:55:24,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:55:24,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1805796550, now seen corresponding path program 2 times [2020-10-24 14:55:24,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:55:24,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1117340084] [2020-10-24 14:55:24,693 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-24 14:55:27,634 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-24 14:55:27,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-24 14:55:27,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 18 conjunts are in the unsatisfiable core [2020-10-24 14:55:27,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:55:30,203 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet9_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet7_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64)) (ULTIMATE.start_main_~main__x~0 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_10|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_10|))) (.cse1 (fp ((_ extract 31 31) ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) ULTIMATE.start_main_~main__x~0)))) (and (= .cse0 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse1) .cse2)) (= .cse3 ((_ to_fp 11 53) c_~CRM 1.0)) (= ((_ to_fp 8 24) c_~CRM .cse0) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 11 53) c_~CRM (/ 800000011920929.0 500000000000000.0)) .cse2) (= ((_ to_fp 8 24) c_~CRM .cse3) .cse1)))) (= roundNearestTiesToEven c_~CRM)) is different from false [2020-10-24 14:55:32,737 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet9_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet7_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64)) (ULTIMATE.start_main_~main__x~0 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet12_9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_9| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_11 (_ BitVec 32))) (let ((.cse3 ((_ to_fp 11 53) c_~CRM (/ 800000011920929.0 500000000000000.0))) (.cse1 (fp ((_ extract 31 31) ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) ULTIMATE.start_main_~main__x~0))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_9|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_10|))) (.cse7 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_11))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_10|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_9|)))) (and (= ((_ to_fp 8 24) c_~CRM .cse0) .cse1) (= .cse2 ((_ to_fp 11 53) c_~CRM 1.0)) (= .cse3 .cse4) (= .cse3 .cse5) (= .cse6 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse1) .cse5)) (= ((_ to_fp 8 24) c_~CRM .cse2) .cse7) (= (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse7) .cse4) .cse0) (= ((_ to_fp 8 24) c_~CRM .cse6) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))))))) is different from false [2020-10-24 14:55:36,033 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet12_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_10| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_10|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_10|)))) (and (= (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0))) .cse0) .cse1) (= ((_ to_fp 8 24) c_~CRM .cse1) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 11 53) c_~CRM (/ 800000011920929.0 500000000000000.0)) .cse0)))) (= roundNearestTiesToEven c_~CRM) (exists ((v_ULTIMATE.start_main_~main__x~0_12 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet9_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet7_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_9| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_11 (_ BitVec 32))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_9|))) (.cse3 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_12) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_12) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_12))) (.cse7 ((_ to_fp 11 53) c_~CRM (/ 800000011920929.0 500000000000000.0))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_9|))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_10|))) (.cse9 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_11))) (.cse8 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_10|))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|)))) (and (= ((_ to_fp 8 24) c_~CRM .cse2) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0))) (= .cse2 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse3) .cse4)) (= .cse5 ((_ to_fp 11 53) c_~CRM 1.0)) (= ((_ to_fp 8 24) c_~CRM .cse6) .cse3) (= .cse7 .cse8) (= .cse7 .cse4) (= ((_ to_fp 8 24) c_~CRM .cse5) .cse9) (= (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse9) .cse8) .cse6))))) is different from false [2020-10-24 14:55:36,124 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 14:55:42,361 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2020-10-24 14:55:42,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:55:42,795 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-10-24 14:55:45,071 WARN L860 $PredicateComparison]: unable to prove that (or (fp.eq (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0)) ((_ to_fp 8 24) c_~CRM (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_#t~nondet12_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_10|))) (.cse1 (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_10|)))) (or (not (fp.eq .cse0 .cse1)) (not (= ((_ to_fp 11 53) c_~CRM (/ 800000011920929.0 500000000000000.0)) .cse2)) (not (= ((_ to_fp 8 24) c_~CRM .cse3) .cse0)) (not (= .cse3 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse1) .cse2))))))) is different from true [2020-10-24 14:55:47,568 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet12_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_14 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet12_9| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet13_9| (_ BitVec 64))) (let ((.cse5 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_9|))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_10|))) (.cse6 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_14))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_10|))) (.cse2 ((_ to_fp 11 53) c_~CRM (/ 800000011920929.0 500000000000000.0))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_9|)))) (or (not (= .cse0 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) .cse1))) (not (= .cse2 .cse3)) (not (= ((_ to_fp 8 24) c_~CRM .cse4) .cse5)) (fp.eq .cse6 ((_ to_fp 8 24) c_~CRM (_ bv0 32))) (not (fp.eq .cse5 .cse6)) (not (= ((_ to_fp 8 24) c_~CRM .cse0) .cse6)) (not (= .cse4 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse6) .cse3))) (not (= .cse2 .cse1))))) is different from true [2020-10-24 14:55:50,863 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~main__x~0_15 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet9_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet7_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_14 (_ BitVec 32)) (v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet12_9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_9| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_15 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|))) (.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_10|))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_10|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_10|))) (.cse9 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_10|))) (.cse6 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_15) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_15) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_15))) (.cse0 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_15) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_15) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_15))) (.cse5 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse10 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_9|))) (.cse8 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_14))) (.cse2 ((_ to_fp 11 53) c_~CRM (/ 800000011920929.0 500000000000000.0))) (.cse11 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_9|)))) (or (not (= .cse0 ((_ to_fp 8 24) c_~CRM .cse1))) (not (= .cse2 .cse3)) (not (= ((_ to_fp 8 24) c_~CRM .cse4) .cse5)) (not (= (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse6) .cse7) .cse1)) (fp.eq .cse8 ((_ to_fp 8 24) c_~CRM (_ bv0 32))) (not (= .cse2 .cse7)) (not (= .cse4 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse8) .cse3))) (not (= .cse9 ((_ to_fp 11 53) c_~CRM 1.0))) (not (= ((_ to_fp 8 24) c_~CRM .cse9) .cse6)) (not (= .cse10 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse0) .cse11))) (not (fp.eq .cse5 .cse8)) (not (= ((_ to_fp 8 24) c_~CRM .cse10) .cse8)) (not (= .cse2 .cse11))))) is different from true [2020-10-24 14:55:50,866 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2020-10-24 14:55:50,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1117340084] [2020-10-24 14:55:50,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-24 14:55:50,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2020-10-24 14:55:50,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112016207] [2020-10-24 14:55:50,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-24 14:55:50,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:55:50,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-24 14:55:50,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=19, Unknown=6, NotChecked=66, Total=110 [2020-10-24 14:55:50,877 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 11 states. [2020-10-24 14:55:54,266 WARN L860 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (forall ((v_ULTIMATE.start_main_~main__x~0_15 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet9_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet7_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_14 (_ BitVec 32)) (v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet12_9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_9| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_15 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|))) (.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_10|))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_10|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_10|))) (.cse9 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_10|))) (.cse6 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_15) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_15) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_15))) (.cse0 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_15) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_15) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_15))) (.cse5 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse10 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_9|))) (.cse8 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_14))) (.cse2 ((_ to_fp 11 53) c_~CRM (/ 800000011920929.0 500000000000000.0))) (.cse11 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_9|)))) (or (not (= .cse0 ((_ to_fp 8 24) c_~CRM .cse1))) (not (= .cse2 .cse3)) (not (= ((_ to_fp 8 24) c_~CRM .cse4) .cse5)) (not (= (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse6) .cse7) .cse1)) (fp.eq .cse8 ((_ to_fp 8 24) c_~CRM (_ bv0 32))) (not (= .cse2 .cse7)) (not (= .cse4 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse8) .cse3))) (not (= .cse9 ((_ to_fp 11 53) c_~CRM 1.0))) (not (= ((_ to_fp 8 24) c_~CRM .cse9) .cse6)) (not (= .cse10 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse0) .cse11))) (not (fp.eq .cse5 .cse8)) (not (= ((_ to_fp 8 24) c_~CRM .cse10) .cse8)) (not (= .cse2 .cse11)))))) is different from true [2020-10-24 14:55:56,544 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet9_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet7_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64)) (ULTIMATE.start_main_~main__x~0 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_10|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_10|))) (.cse1 (fp ((_ extract 31 31) ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) ULTIMATE.start_main_~main__x~0)))) (and (= .cse0 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse1) .cse2)) (= .cse3 ((_ to_fp 11 53) c_~CRM 1.0)) (= ((_ to_fp 8 24) c_~CRM .cse0) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 11 53) c_~CRM (/ 800000011920929.0 500000000000000.0)) .cse2) (= ((_ to_fp 8 24) c_~CRM .cse3) .cse1)))) (= roundNearestTiesToEven c_~CRM) (forall ((|v_ULTIMATE.start_main_#t~nondet12_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_14 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet12_9| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet13_9| (_ BitVec 64))) (let ((.cse9 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_9|))) (.cse8 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_10|))) (.cse10 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_14))) (.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_10|))) (.cse6 ((_ to_fp 11 53) c_~CRM (/ 800000011920929.0 500000000000000.0))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_9|)))) (or (not (= .cse4 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) .cse5))) (not (= .cse6 .cse7)) (not (= ((_ to_fp 8 24) c_~CRM .cse8) .cse9)) (fp.eq .cse10 ((_ to_fp 8 24) c_~CRM (_ bv0 32))) (not (fp.eq .cse9 .cse10)) (not (= ((_ to_fp 8 24) c_~CRM .cse4) .cse10)) (not (= .cse8 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse10) .cse7))) (not (= .cse6 .cse5)))))) is different from false [2020-10-24 14:55:58,593 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet9_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet7_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64)) (ULTIMATE.start_main_~main__x~0 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_10|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_10|))) (.cse1 (fp ((_ extract 31 31) ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) ULTIMATE.start_main_~main__x~0)))) (and (= .cse0 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse1) .cse2)) (= .cse3 ((_ to_fp 11 53) c_~CRM 1.0)) (= ((_ to_fp 8 24) c_~CRM .cse0) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 11 53) c_~CRM (/ 800000011920929.0 500000000000000.0)) .cse2) (= ((_ to_fp 8 24) c_~CRM .cse3) .cse1)))) (= roundNearestTiesToEven c_~CRM) (forall ((|v_ULTIMATE.start_main_#t~nondet12_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_14 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet12_9| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet13_9| (_ BitVec 64))) (let ((.cse9 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_9|))) (.cse8 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_10|))) (.cse10 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_14))) (.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_10|))) (.cse6 ((_ to_fp 11 53) c_~CRM (/ 800000011920929.0 500000000000000.0))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_9|)))) (or (not (= .cse4 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) .cse5))) (not (= .cse6 .cse7)) (not (= ((_ to_fp 8 24) c_~CRM .cse8) .cse9)) (fp.eq .cse10 ((_ to_fp 8 24) c_~CRM (_ bv0 32))) (not (fp.eq .cse9 .cse10)) (not (= ((_ to_fp 8 24) c_~CRM .cse4) .cse10)) (not (= .cse8 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse10) .cse7))) (not (= .cse6 .cse5)))))) is different from true [2020-10-24 14:56:01,071 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet9_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet7_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64)) (ULTIMATE.start_main_~main__x~0 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet12_9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_9| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_11 (_ BitVec 32))) (let ((.cse3 ((_ to_fp 11 53) c_~CRM (/ 800000011920929.0 500000000000000.0))) (.cse1 (fp ((_ extract 31 31) ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) ULTIMATE.start_main_~main__x~0))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_9|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_10|))) (.cse7 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_11))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_10|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_9|)))) (and (= ((_ to_fp 8 24) c_~CRM .cse0) .cse1) (= .cse2 ((_ to_fp 11 53) c_~CRM 1.0)) (= .cse3 .cse4) (= .cse3 .cse5) (= .cse6 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse1) .cse5)) (= ((_ to_fp 8 24) c_~CRM .cse2) .cse7) (= (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse7) .cse4) .cse0) (= ((_ to_fp 8 24) c_~CRM .cse6) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0)))))) (or (fp.eq (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0)) ((_ to_fp 8 24) c_~CRM (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_#t~nondet12_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 32))) (let ((.cse8 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse11 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_10|))) (.cse9 (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) (.cse10 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_10|)))) (or (not (fp.eq .cse8 .cse9)) (not (= ((_ to_fp 11 53) c_~CRM (/ 800000011920929.0 500000000000000.0)) .cse10)) (not (= ((_ to_fp 8 24) c_~CRM .cse11) .cse8)) (not (= .cse11 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse9) .cse10)))))))) is different from false [2020-10-24 14:56:05,389 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet12_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_10| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_10|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_10|)))) (and (= (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0))) .cse0) .cse1) (= ((_ to_fp 8 24) c_~CRM .cse1) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 11 53) c_~CRM (/ 800000011920929.0 500000000000000.0)) .cse0)))) (= roundNearestTiesToEven c_~CRM) (let ((.cse2 (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0)))) (or (not (fp.eq (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0)) .cse2)) (fp.eq .cse2 ((_ to_fp 8 24) c_~CRM (_ bv0 32))))) (exists ((v_ULTIMATE.start_main_~main__x~0_12 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet9_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet7_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_9| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_11 (_ BitVec 32))) (let ((.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_9|))) (.cse4 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_12) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_12) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_12))) (.cse8 ((_ to_fp 11 53) c_~CRM (/ 800000011920929.0 500000000000000.0))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_9|))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_10|))) (.cse10 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_11))) (.cse9 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_10|))) (.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|)))) (and (= ((_ to_fp 8 24) c_~CRM .cse3) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0))) (= .cse3 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse4) .cse5)) (= .cse6 ((_ to_fp 11 53) c_~CRM 1.0)) (= ((_ to_fp 8 24) c_~CRM .cse7) .cse4) (= .cse8 .cse9) (= .cse8 .cse5) (= ((_ to_fp 8 24) c_~CRM .cse6) .cse10) (= (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse10) .cse9) .cse7))))) is different from false [2020-10-24 14:56:10,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:56:10,208 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2020-10-24 14:56:10,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 14:56:10,209 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 7 [2020-10-24 14:56:10,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:56:10,210 INFO L225 Difference]: With dead ends: 12 [2020-10-24 14:56:10,210 INFO L226 Difference]: Without dead ends: 9 [2020-10-24 14:56:10,211 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.0s TimeCoverageRelationStatistics Valid=27, Invalid=22, Unknown=11, NotChecked=150, Total=210 [2020-10-24 14:56:10,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-10-24 14:56:10,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-10-24 14:56:10,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-24 14:56:10,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-10-24 14:56:10,220 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2020-10-24 14:56:10,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:56:10,221 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-10-24 14:56:10,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-24 14:56:10,221 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-10-24 14:56:10,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-24 14:56:10,221 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:56:10,222 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1] [2020-10-24 14:56:10,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 14:56:10,432 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:56:10,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:56:10,433 INFO L82 PathProgramCache]: Analyzing trace with hash 145055718, now seen corresponding path program 3 times [2020-10-24 14:56:10,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:56:10,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1177104652] [2020-10-24 14:56:10,435 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-24 14:56:14,456 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-10-24 14:56:14,456 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-24 14:56:14,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 22 conjunts are in the unsatisfiable core [2020-10-24 14:56:14,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:56:17,177 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet7_12| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_12| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet9_12| (_ BitVec 64)) (ULTIMATE.start_main_~main__x~0 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_12|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_12|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_12|))) (.cse3 (fp ((_ extract 31 31) ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) ULTIMATE.start_main_~main__x~0)))) (and (= ((_ to_fp 8 24) c_~CRM .cse0) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) (= .cse1 ((_ to_fp 11 53) c_~CRM 1.0)) (= ((_ to_fp 11 53) c_~CRM (/ 800000011920929.0 500000000000000.0)) .cse2) (= .cse0 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse3) .cse2)) (= ((_ to_fp 8 24) c_~CRM .cse1) .cse3)))) (= roundNearestTiesToEven c_~CRM)) is different from false [2020-10-24 14:56:19,750 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((v_ULTIMATE.start_main_~main__x~0_16 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet7_12| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_14| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_12| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet9_12| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_14| (_ BitVec 64)) (ULTIMATE.start_main_~main__x~0 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_12|))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_12|))) (.cse6 ((_ to_fp 11 53) c_~CRM (/ 800000011920929.0 500000000000000.0))) (.cse1 (fp ((_ extract 31 31) ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) ULTIMATE.start_main_~main__x~0))) (.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_14|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_14|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_14|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_14|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_14|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_14|))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_12|))) (.cse3 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_16) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_16) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_16)))) (and (= ((_ to_fp 8 24) c_~CRM .cse0) .cse1) (= ((_ to_fp 8 24) c_~CRM .cse2) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) (= .cse0 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse3) .cse4)) (= .cse5 ((_ to_fp 11 53) c_~CRM 1.0)) (= .cse6 .cse4) (= .cse6 .cse7) (= (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse1) .cse7) .cse2) (= ((_ to_fp 8 24) c_~CRM .cse5) .cse3))))) is different from false [2020-10-24 14:56:23,210 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet12_15| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_16 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet7_12| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_14| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_15| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet9_12| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_12| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_17 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet13_14| (_ BitVec 64)) (ULTIMATE.start_main_~main__x~0 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_12|))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_12|))) (.cse2 ((_ to_fp 11 53) c_~CRM (/ 800000011920929.0 500000000000000.0))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_15|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_15|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_15|))) (.cse0 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_17) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_17) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_17))) (.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_14|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_14|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_14|))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_12|))) (.cse4 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_16) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_16) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_16))) (.cse9 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_15|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_15|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_15|))) (.cse10 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_14|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_14|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_14|))) (.cse8 (fp ((_ extract 31 31) ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) ULTIMATE.start_main_~main__x~0)))) (and (= .cse0 ((_ to_fp 8 24) c_~CRM .cse1)) (= .cse2 .cse3) (= .cse1 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse4) .cse5)) (= .cse6 ((_ to_fp 11 53) c_~CRM 1.0)) (= .cse2 .cse5) (= .cse2 .cse7) (= (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse8) .cse3) .cse9) (= (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse0) .cse7) .cse10) (= ((_ to_fp 8 24) c_~CRM .cse6) .cse4) (= ((_ to_fp 8 24) c_~CRM .cse9) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 8 24) c_~CRM .cse10) .cse8))))) is different from false [2020-10-24 14:56:26,680 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-10-24 14:56:26,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1177104652] [2020-10-24 14:56:26,683 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") [2020-10-24 14:56:26,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [328651569] [2020-10-24 14:56:26,683 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-24 14:56:34,267 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-10-24 14:56:34,268 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-24 14:56:34,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 22 conjunts are in the unsatisfiable core [2020-10-24 14:56:34,280 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@219d98b0 [2020-10-24 14:56:34,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168648816] [2020-10-24 14:56:34,280 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-24 14:58:04,142 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-10-24 14:58:04,142 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-24 14:58:05,014 WARN L261 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 24 conjunts are in the unsatisfiable core [2020-10-24 14:58:05,015 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@219d98b0 [2020-10-24 14:58:05,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:58:05,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-24 14:58:05,016 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-24 14:58:05,016 INFO L523 BasicCegarLoop]: Counterexample might be feasible [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forcibly destroying the process [2020-10-24 14:58:05,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3,6 cvc4 --incremental --print-success --lang smt --rewrite-divk,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-24 14:58:05,671 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-24 14:58:05,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:58:05 BoogieIcfgContainer [2020-10-24 14:58:05,672 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 14:58:05,673 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 14:58:05,674 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 14:58:05,674 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 14:58:05,675 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:54:42" (3/4) ... [2020-10-24 14:58:05,680 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 14:58:05,680 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 14:58:05,682 INFO L168 Benchmark]: Toolchain (without parser) took 207305.36 ms. Allocated memory was 44.0 MB in the beginning and 56.6 MB in the end (delta: 12.6 MB). Free memory was 20.2 MB in the beginning and 32.4 MB in the end (delta: -12.3 MB). Peak memory consumption was 2.2 MB. Max. memory is 16.1 GB. [2020-10-24 14:58:05,683 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 44.0 MB. Free memory was 29.4 MB in the beginning and 29.4 MB in the end (delta: 29.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:58:05,684 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.81 ms. Allocated memory was 44.0 MB in the beginning and 56.6 MB in the end (delta: 12.6 MB). Free memory was 19.5 MB in the beginning and 31.1 MB in the end (delta: -11.5 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-10-24 14:58:05,685 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.71 ms. Allocated memory is still 56.6 MB. Free memory was 31.1 MB in the beginning and 29.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:58:05,686 INFO L168 Benchmark]: Boogie Preprocessor took 39.47 ms. Allocated memory is still 56.6 MB. Free memory was 29.5 MB in the beginning and 28.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:58:05,686 INFO L168 Benchmark]: RCFGBuilder took 3635.19 ms. Allocated memory is still 56.6 MB. Free memory was 28.4 MB in the beginning and 31.5 MB in the end (delta: -3.1 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-10-24 14:58:05,687 INFO L168 Benchmark]: TraceAbstraction took 203229.50 ms. Allocated memory is still 56.6 MB. Free memory was 31.1 MB in the beginning and 32.9 MB in the end (delta: -1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:58:05,688 INFO L168 Benchmark]: Witness Printer took 6.52 ms. Allocated memory is still 56.6 MB. Free memory was 32.9 MB in the beginning and 32.4 MB in the end (delta: 478.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:58:05,693 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 44.0 MB. Free memory was 29.4 MB in the beginning and 29.4 MB in the end (delta: 29.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 335.81 ms. Allocated memory was 44.0 MB in the beginning and 56.6 MB in the end (delta: 12.6 MB). Free memory was 19.5 MB in the beginning and 31.1 MB in the end (delta: -11.5 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.71 ms. Allocated memory is still 56.6 MB. Free memory was 31.1 MB in the beginning and 29.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.47 ms. Allocated memory is still 56.6 MB. Free memory was 29.5 MB in the beginning and 28.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3635.19 ms. Allocated memory is still 56.6 MB. Free memory was 28.4 MB in the beginning and 31.5 MB in the end (delta: -3.1 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 203229.50 ms. Allocated memory is still 56.6 MB. Free memory was 31.1 MB in the beginning and 32.9 MB in the end (delta: -1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.52 ms. Allocated memory is still 56.6 MB. Free memory was 32.9 MB in the beginning and 32.4 MB in the end (delta: 478.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L1] int __return_main; [L9] EXPR 1.0 [L9] float main__x = 1.0; [L10] EXPR 1.600000023841858 [L10] EXPR main__x / 1.600000023841858 [L10] float main__x1 = main__x / 1.600000023841858; [L12] COND TRUE main__x1 != main__x [L14] main__x = main__x1 [L15] EXPR 1.600000023841858 [L15] EXPR main__x / 1.600000023841858 [L15] main__x1 = main__x / 1.600000023841858 [L12] COND TRUE main__x1 != main__x [L14] main__x = main__x1 [L15] EXPR 1.600000023841858 [L15] EXPR main__x / 1.600000023841858 [L15] main__x1 = main__x / 1.600000023841858 [L12] COND TRUE main__x1 != main__x [L14] main__x = main__x1 [L15] EXPR 1.600000023841858 [L15] EXPR main__x / 1.600000023841858 [L15] main__x1 = main__x / 1.600000023841858 [L12] COND FALSE !(main__x1 != main__x) [L21] int __tmp_1; [L22] __tmp_1 = main__x == 0 [L23] int __VERIFIER_assert__cond; [L24] __VERIFIER_assert__cond = __tmp_1 [L25] COND TRUE __VERIFIER_assert__cond == 0 [L4] __assert_fail("0", "Float_div_bad.i.p+cfa-reducer.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 203.0s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 41.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 18 SDtfs, 0 SDslu, 40 SDs, 0 SdLazy, 9 SolverSat, 0 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 13.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 21 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 59.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 5.9s SatisfiabilityAnalysisTime, 39.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 12 QuantifiedInterpolants, 8861 SizeOfPredicates, 13 NumberOfNonLiveVariables, 114 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 0/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...