./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d3efc4d3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 47ed977f76c934f7398d12ebfeb1101009979bf5 .............................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 47ed977f76c934f7398d12ebfeb1101009979bf5 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.2.0-d3efc4d [2020-12-04 10:22:21,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-04 10:22:21,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-04 10:22:21,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-04 10:22:21,494 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-04 10:22:21,500 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-04 10:22:21,504 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-04 10:22:21,512 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-04 10:22:21,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-04 10:22:21,525 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-04 10:22:21,528 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-04 10:22:21,534 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-04 10:22:21,535 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-04 10:22:21,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-04 10:22:21,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-04 10:22:21,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-04 10:22:21,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-04 10:22:21,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-04 10:22:21,554 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-04 10:22:21,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-04 10:22:21,568 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-04 10:22:21,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-04 10:22:21,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-04 10:22:21,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-04 10:22:21,582 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-04 10:22:21,583 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-04 10:22:21,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-04 10:22:21,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-04 10:22:21,588 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-04 10:22:21,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-04 10:22:21,592 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-04 10:22:21,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-04 10:22:21,596 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-04 10:22:21,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-04 10:22:21,599 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-04 10:22:21,600 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-04 10:22:21,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-04 10:22:21,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-04 10:22:21,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-04 10:22:21,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-04 10:22:21,605 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-04 10:22:21,606 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-04 10:22:21,666 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-04 10:22:21,666 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-04 10:22:21,671 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-04 10:22:21,672 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-04 10:22:21,672 INFO L138 SettingsManager]: * Use SBE=true [2020-12-04 10:22:21,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-04 10:22:21,673 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-04 10:22:21,673 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-04 10:22:21,674 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-04 10:22:21,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-04 10:22:21,675 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-04 10:22:21,676 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-04 10:22:21,676 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-04 10:22:21,676 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-04 10:22:21,677 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-04 10:22:21,677 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-04 10:22:21,677 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-04 10:22:21,678 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-04 10:22:21,678 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-04 10:22:21,678 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-04 10:22:21,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-04 10:22:21,679 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-04 10:22:21,679 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-04 10:22:21,679 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-04 10:22:21,680 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-04 10:22:21,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-04 10:22:21,680 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-04 10:22:21,680 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-04 10:22:21,681 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47ed977f76c934f7398d12ebfeb1101009979bf5 [2020-12-04 10:22:22,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-04 10:22:22,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-04 10:22:22,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-04 10:22:22,161 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-04 10:22:22,162 INFO L275 PluginConnector]: CDTParser initialized [2020-12-04 10:22:22,163 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c [2020-12-04 10:22:22,252 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fc5dfb04/284a4f7a8cfe47d493dd988ee737d11f/FLAGdf5e63638 [2020-12-04 10:22:23,052 INFO L306 CDTParser]: Found 1 translation units. [2020-12-04 10:22:23,055 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c [2020-12-04 10:22:23,063 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fc5dfb04/284a4f7a8cfe47d493dd988ee737d11f/FLAGdf5e63638 [2020-12-04 10:22:23,380 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fc5dfb04/284a4f7a8cfe47d493dd988ee737d11f [2020-12-04 10:22:23,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-04 10:22:23,387 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-04 10:22:23,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-04 10:22:23,389 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-04 10:22:23,394 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-04 10:22:23,395 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.12 10:22:23" (1/1) ... [2020-12-04 10:22:23,399 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@229567e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:22:23, skipping insertion in model container [2020-12-04 10:22:23,400 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.12 10:22:23" (1/1) ... [2020-12-04 10:22:23,410 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-04 10:22:23,428 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-04 10:22:23,674 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c[674,687] [2020-12-04 10:22:23,681 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-04 10:22:23,696 INFO L212 MainTranslator]: Completed pre-run [2020-12-04 10:22:23,714 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c[674,687] [2020-12-04 10:22:23,715 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-04 10:22:23,732 INFO L217 MainTranslator]: Completed translation [2020-12-04 10:22:23,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:22:23 WrapperNode [2020-12-04 10:22:23,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-04 10:22:23,734 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-04 10:22:23,734 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-04 10:22:23,735 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-04 10:22:23,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:22:23" (1/1) ... [2020-12-04 10:22:23,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:22:23" (1/1) ... [2020-12-04 10:22:23,772 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-04 10:22:23,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-04 10:22:23,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-04 10:22:23,773 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-04 10:22:23,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:22:23" (1/1) ... [2020-12-04 10:22:23,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:22:23" (1/1) ... [2020-12-04 10:22:23,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:22:23" (1/1) ... [2020-12-04 10:22:23,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:22:23" (1/1) ... [2020-12-04 10:22:23,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:22:23" (1/1) ... [2020-12-04 10:22:23,794 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:22:23" (1/1) ... [2020-12-04 10:22:23,795 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:22:23" (1/1) ... [2020-12-04 10:22:23,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-04 10:22:23,799 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-04 10:22:23,799 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-04 10:22:23,799 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-04 10:22:23,800 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:22:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-04 10:22:23,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-04 10:22:23,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-04 10:22:23,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-04 10:22:23,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-04 10:22:24,156 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-04 10:22:24,157 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-04 10:22:24,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.12 10:22:24 BoogieIcfgContainer [2020-12-04 10:22:24,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-04 10:22:24,161 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-04 10:22:24,162 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-04 10:22:24,166 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-04 10:22:24,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.12 10:22:23" (1/3) ... [2020-12-04 10:22:24,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f8c5ed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.12 10:22:24, skipping insertion in model container [2020-12-04 10:22:24,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:22:23" (2/3) ... [2020-12-04 10:22:24,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f8c5ed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.12 10:22:24, skipping insertion in model container [2020-12-04 10:22:24,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.12 10:22:24" (3/3) ... [2020-12-04 10:22:24,171 INFO L111 eAbstractionObserver]: Analyzing ICFG Double_div_bad.i.p+cfa-reducer.c [2020-12-04 10:22:24,195 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-04 10:22:24,200 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-04 10:22:24,217 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-04 10:22:24,249 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-04 10:22:24,250 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-04 10:22:24,250 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-04 10:22:24,250 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-04 10:22:24,250 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-04 10:22:24,251 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-04 10:22:24,251 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-04 10:22:24,251 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-04 10:22:24,268 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-12-04 10:22:24,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-04 10:22:24,275 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 10:22:24,276 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-04 10:22:24,276 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 10:22:24,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 10:22:24,285 INFO L82 PathProgramCache]: Analyzing trace with hash 28696774, now seen corresponding path program 1 times [2020-12-04 10:22:24,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-04 10:22:24,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736011038] [2020-12-04 10:22:24,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-04 10:22:24,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-04 10:22:24,431 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-04 10:22:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-04 10:22:24,459 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-04 10:22:24,490 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-04 10:22:24,491 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-04 10:22:24,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-04 10:22:24,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.12 10:22:24 BoogieIcfgContainer [2020-12-04 10:22:24,542 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-04 10:22:24,544 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-04 10:22:24,544 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-04 10:22:24,546 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-04 10:22:24,547 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.12 10:22:24" (3/4) ... [2020-12-04 10:22:24,562 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-04 10:22:24,565 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-04 10:22:24,569 INFO L168 Benchmark]: Toolchain (without parser) took 1180.75 ms. Allocated memory is still 54.5 MB. Free memory was 31.8 MB in the beginning and 37.5 MB in the end (delta: -5.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-04 10:22:24,574 INFO L168 Benchmark]: CDTParser took 0.59 ms. Allocated memory is still 41.9 MB. Free memory was 19.8 MB in the beginning and 19.8 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-04 10:22:24,576 INFO L168 Benchmark]: CACSL2BoogieTranslator took 344.41 ms. Allocated memory is still 54.5 MB. Free memory was 31.5 MB in the beginning and 35.5 MB in the end (delta: -4.0 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-12-04 10:22:24,577 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.95 ms. Allocated memory is still 54.5 MB. Free memory was 35.3 MB in the beginning and 34.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-04 10:22:24,580 INFO L168 Benchmark]: Boogie Preprocessor took 24.99 ms. Allocated memory is still 54.5 MB. Free memory was 34.0 MB in the beginning and 33.1 MB in the end (delta: 891.7 kB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-04 10:22:24,583 INFO L168 Benchmark]: RCFGBuilder took 360.88 ms. Allocated memory is still 54.5 MB. Free memory was 33.0 MB in the beginning and 36.0 MB in the end (delta: -3.0 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2020-12-04 10:22:24,585 INFO L168 Benchmark]: TraceAbstraction took 380.53 ms. Allocated memory is still 54.5 MB. Free memory was 35.6 MB in the beginning and 37.8 MB in the end (delta: -2.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. [2020-12-04 10:22:24,587 INFO L168 Benchmark]: Witness Printer took 21.50 ms. Allocated memory is still 54.5 MB. Free memory was 37.8 MB in the beginning and 37.5 MB in the end (delta: 244.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-04 10:22:24,600 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59 ms. Allocated memory is still 41.9 MB. Free memory was 19.8 MB in the beginning and 19.8 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 344.41 ms. Allocated memory is still 54.5 MB. Free memory was 31.5 MB in the beginning and 35.5 MB in the end (delta: -4.0 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.95 ms. Allocated memory is still 54.5 MB. Free memory was 35.3 MB in the beginning and 34.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.99 ms. Allocated memory is still 54.5 MB. Free memory was 34.0 MB in the beginning and 33.1 MB in the end (delta: 891.7 kB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 360.88 ms. Allocated memory is still 54.5 MB. Free memory was 33.0 MB in the beginning and 36.0 MB in the end (delta: -3.0 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 380.53 ms. Allocated memory is still 54.5 MB. Free memory was 35.6 MB in the beginning and 37.8 MB in the end (delta: -2.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. * Witness Printer took 21.50 ms. Allocated memory is still 54.5 MB. Free memory was 37.8 MB in the beginning and 37.5 MB in the end (delta: 244.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticDOUBLE_SMToperation at line 10, overapproximation of someBinaryDOUBLE_SMTComparisonOperation at line 12. Possible FailurePath: [L1] int __return_main; VAL [__return_main=0] [L9] double main__x = 1.0; [L10] double main__x1 = main__x / 1.6; VAL [__return_main=0] [L12] COND FALSE !(main__x1 != main__x) [L21] int __tmp_1; [L22] __tmp_1 = main__x == 0 [L23] int __VERIFIER_assert__cond; [L24] __VERIFIER_assert__cond = __tmp_1 VAL [__return_main=0] [L25] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_main=0] [L27] reach_error() VAL [__return_main=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, 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=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-d3efc4d [2020-12-04 10:22:27,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-04 10:22:27,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-04 10:22:27,435 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-04 10:22:27,435 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-04 10:22:27,437 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-04 10:22:27,439 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-04 10:22:27,441 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-04 10:22:27,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-04 10:22:27,445 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-04 10:22:27,446 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-04 10:22:27,447 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-04 10:22:27,448 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-04 10:22:27,449 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-04 10:22:27,451 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-04 10:22:27,452 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-04 10:22:27,453 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-04 10:22:27,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-04 10:22:27,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-04 10:22:27,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-04 10:22:27,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-04 10:22:27,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-04 10:22:27,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-04 10:22:27,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-04 10:22:27,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-04 10:22:27,469 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-04 10:22:27,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-04 10:22:27,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-04 10:22:27,473 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-04 10:22:27,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-04 10:22:27,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-04 10:22:27,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-04 10:22:27,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-04 10:22:27,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-04 10:22:27,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-04 10:22:27,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-04 10:22:27,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-04 10:22:27,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-04 10:22:27,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-04 10:22:27,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-04 10:22:27,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-04 10:22:27,490 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-04 10:22:27,517 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-04 10:22:27,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-04 10:22:27,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-04 10:22:27,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-04 10:22:27,519 INFO L138 SettingsManager]: * Use SBE=true [2020-12-04 10:22:27,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-04 10:22:27,520 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-04 10:22:27,520 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-04 10:22:27,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-04 10:22:27,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-04 10:22:27,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-04 10:22:27,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-04 10:22:27,521 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-04 10:22:27,522 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-04 10:22:27,522 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-04 10:22:27,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-04 10:22:27,522 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-04 10:22:27,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-04 10:22:27,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-04 10:22:27,523 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-04 10:22:27,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-04 10:22:27,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-04 10:22:27,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-04 10:22:27,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-04 10:22:27,525 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-04 10:22:27,525 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-04 10:22:27,525 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-04 10:22:27,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-04 10:22:27,526 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-04 10:22:27,526 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-04 10:22:27,526 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47ed977f76c934f7398d12ebfeb1101009979bf5 [2020-12-04 10:22:27,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-04 10:22:27,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-04 10:22:27,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-04 10:22:27,990 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-04 10:22:27,993 INFO L275 PluginConnector]: CDTParser initialized [2020-12-04 10:22:27,995 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c [2020-12-04 10:22:28,098 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52fa3b192/18f49a3a213d4b3ba7d40365c03281dc/FLAGfe43be86a [2020-12-04 10:22:28,832 INFO L306 CDTParser]: Found 1 translation units. [2020-12-04 10:22:28,832 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c [2020-12-04 10:22:28,840 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52fa3b192/18f49a3a213d4b3ba7d40365c03281dc/FLAGfe43be86a [2020-12-04 10:22:29,196 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52fa3b192/18f49a3a213d4b3ba7d40365c03281dc [2020-12-04 10:22:29,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-04 10:22:29,202 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-04 10:22:29,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-04 10:22:29,207 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-04 10:22:29,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-04 10:22:29,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.12 10:22:29" (1/1) ... [2020-12-04 10:22:29,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72680eea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:22:29, skipping insertion in model container [2020-12-04 10:22:29,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.12 10:22:29" (1/1) ... [2020-12-04 10:22:29,230 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-04 10:22:29,246 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-04 10:22:29,428 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c[674,687] [2020-12-04 10:22:29,434 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-04 10:22:29,451 INFO L212 MainTranslator]: Completed pre-run [2020-12-04 10:22:29,467 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c[674,687] [2020-12-04 10:22:29,469 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-04 10:22:29,489 INFO L217 MainTranslator]: Completed translation [2020-12-04 10:22:29,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:22:29 WrapperNode [2020-12-04 10:22:29,490 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-04 10:22:29,491 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-04 10:22:29,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-04 10:22:29,492 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-04 10:22:29,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:22:29" (1/1) ... [2020-12-04 10:22:29,512 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:22:29" (1/1) ... [2020-12-04 10:22:29,533 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-04 10:22:29,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-04 10:22:29,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-04 10:22:29,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-04 10:22:29,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:22:29" (1/1) ... [2020-12-04 10:22:29,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:22:29" (1/1) ... [2020-12-04 10:22:29,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:22:29" (1/1) ... [2020-12-04 10:22:29,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:22:29" (1/1) ... [2020-12-04 10:22:29,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:22:29" (1/1) ... [2020-12-04 10:22:29,560 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:22:29" (1/1) ... [2020-12-04 10:22:29,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:22:29" (1/1) ... [2020-12-04 10:22:29,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-04 10:22:29,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-04 10:22:29,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-04 10:22:29,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-04 10:22:29,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:22:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-04 10:22:29,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-12-04 10:22:29,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-04 10:22:29,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-04 10:22:29,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-04 10:22:29,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-04 10:22:34,363 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-04 10:22:34,364 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-04 10:22:34,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.12 10:22:34 BoogieIcfgContainer [2020-12-04 10:22:34,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-04 10:22:34,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-04 10:22:34,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-04 10:22:34,373 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-04 10:22:34,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.12 10:22:29" (1/3) ... [2020-12-04 10:22:34,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73aaef71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.12 10:22:34, skipping insertion in model container [2020-12-04 10:22:34,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 10:22:29" (2/3) ... [2020-12-04 10:22:34,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73aaef71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.12 10:22:34, skipping insertion in model container [2020-12-04 10:22:34,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.12 10:22:34" (3/3) ... [2020-12-04 10:22:34,378 INFO L111 eAbstractionObserver]: Analyzing ICFG Double_div_bad.i.p+cfa-reducer.c [2020-12-04 10:22:34,396 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-04 10:22:34,401 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-04 10:22:34,417 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-04 10:22:34,448 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-04 10:22:34,449 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-04 10:22:34,449 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-04 10:22:34,449 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-04 10:22:34,449 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-04 10:22:34,450 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-04 10:22:34,450 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-04 10:22:34,450 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-04 10:22:34,467 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-12-04 10:22:34,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-04 10:22:34,474 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 10:22:34,476 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-04 10:22:34,477 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 10:22:34,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 10:22:34,488 INFO L82 PathProgramCache]: Analyzing trace with hash 28696774, now seen corresponding path program 1 times [2020-12-04 10:22:34,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-04 10:22:34,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1511882268] [2020-12-04 10:22:34,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-04 10:22:35,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-04 10:22:35,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-04 10:22:35,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-04 10:22:38,129 WARN L838 $PredicateComparison]: unable to prove that (and (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0))) (exists ((|v_ULTIMATE.start_main_#t~nondet8_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_6|)))) (and (= (fp.div roundNearestTiesToEven (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)) .cse0) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (= .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 8.0 5.0))))))) is different from false [2020-12-04 10:22:38,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 10:22:38,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-04 10:22:40,489 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~main__x~0_7 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_7 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_7) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_7) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_7))) (.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_7) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_7) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_7))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_6|)))) (or (not (= .cse0 ((_ to_fp 11 53) c_~CRM 1.0))) (not (= .cse1 (fp.div c_~CRM .cse0 .cse2))) (not (fp.eq .cse1 .cse0)) (not (= ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)) .cse2))))) is different from true [2020-12-04 10:22:40,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 10:22:40,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1511882268] [2020-12-04 10:22:40,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-04 10:22:40,493 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-12-04 10:22:40,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009437992] [2020-12-04 10:22:40,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-04 10:22:40,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-04 10:22:40,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-04 10:22:40,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=9, Unknown=2, NotChecked=10, Total=30 [2020-12-04 10:22:40,524 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 6 states. [2020-12-04 10:23:10,606 WARN L197 SmtUtils]: Spent 25.26 s on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2020-12-04 10:23:14,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-04 10:23:14,258 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2020-12-04 10:23:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-04 10:23:14,260 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2020-12-04 10:23:14,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-04 10:23:14,270 INFO L225 Difference]: With dead ends: 16 [2020-12-04 10:23:14,271 INFO L226 Difference]: Without dead ends: 7 [2020-12-04 10:23:14,275 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.8s TimeCoverageRelationStatistics Valid=13, Invalid=13, Unknown=2, NotChecked=14, Total=42 [2020-12-04 10:23:14,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2020-12-04 10:23:14,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-12-04 10:23:14,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-12-04 10:23:14,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2020-12-04 10:23:14,316 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2020-12-04 10:23:14,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-04 10:23:14,317 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2020-12-04 10:23:14,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-04 10:23:14,317 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2020-12-04 10:23:14,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-04 10:23:14,318 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 10:23:14,318 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-04 10:23:14,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-04 10:23:14,534 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 10:23:14,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 10:23:14,537 INFO L82 PathProgramCache]: Analyzing trace with hash 889537510, now seen corresponding path program 1 times [2020-12-04 10:23:14,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-04 10:23:14,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282093982] [2020-12-04 10:23:14,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-04 10:23:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-04 10:23:16,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-04 10:23:16,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-04 10:23:18,500 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_8| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_8|)))) (and (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) (fp.div c_~CRM .cse0 .cse1)) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse0) (= ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)) .cse1)))) (= roundNearestTiesToEven c_~CRM)) is different from false [2020-12-04 10:23:20,977 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet10_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_6|)))) (and (= .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 8.0 5.0))) (= (fp.div roundNearestTiesToEven (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)) .cse0) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)))))) (exists ((v_ULTIMATE.start_main_~main__x~0_8 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_8| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_8|))) (.cse2 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_8) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_8) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_8)))) (and (= .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 8.0 5.0))) (= (fp.div roundNearestTiesToEven .cse2 .cse1) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0))) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse2))))) is different from false [2020-12-04 10:23:21,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2020-12-04 10:23:21,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-04 10:23:24,462 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet10_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_9 (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_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_~main__x1~0_9) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_9)))) (or (not (= ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)) .cse0)) (not (fp.eq .cse1 .cse2)) (not (= (fp.div c_~CRM .cse2 .cse0) .cse1))))) is different from false [2020-12-04 10:23:26,656 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet10_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_9 (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_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_~main__x1~0_9) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_9)))) (or (not (= ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)) .cse0)) (not (fp.eq .cse1 .cse2)) (not (= (fp.div c_~CRM .cse2 .cse0) .cse1))))) is different from true [2020-12-04 10:23:29,146 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~main__x1~0_10 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_10 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_8| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_9 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_6|))) (.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_9))) (.cse2 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_10) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_10) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_10))) (.cse4 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_10) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_10) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_10))) (.cse0 ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_8|)))) (or (not (= .cse0 .cse1)) (not (= (fp.div c_~CRM .cse2 .cse1) .cse3)) (not (= ((_ to_fp 11 53) c_~CRM 1.0) .cse4)) (not (fp.eq .cse3 .cse2)) (not (= .cse2 (fp.div c_~CRM .cse4 .cse5))) (not (= .cse0 .cse5))))) is different from true [2020-12-04 10:23:29,147 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2020-12-04 10:23:29,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282093982] [2020-12-04 10:23:29,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-04 10:23:29,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2020-12-04 10:23:29,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103434591] [2020-12-04 10:23:29,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-04 10:23:29,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-04 10:23:29,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-04 10:23:29,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=10, Unknown=5, NotChecked=28, Total=56 [2020-12-04 10:23:29,152 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 8 states. [2020-12-04 10:23:34,181 WARN L197 SmtUtils]: Spent 2.55 s on a formula simplification that was a NOOP. DAG size: 49 [2020-12-04 10:23:38,404 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_8| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_8|)))) (and (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) (fp.div c_~CRM .cse0 .cse1)) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse0) (= ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)) .cse1)))) (= roundNearestTiesToEven c_~CRM) (forall ((|v_ULTIMATE.start_main_#t~nondet10_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_9 (_ BitVec 64))) (let ((.cse4 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_6|))) (.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_9)))) (or (not (= ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)) .cse2)) (not (fp.eq .cse3 .cse4)) (not (= (fp.div c_~CRM .cse4 .cse2) .cse3))))) (not (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0))))) is different from false [2020-12-04 10:23:41,894 WARN L838 $PredicateComparison]: unable to prove that (and (not (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)))) (exists ((|v_ULTIMATE.start_main_#t~nondet10_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_6|)))) (and (= .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 8.0 5.0))) (= (fp.div roundNearestTiesToEven (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)) .cse0) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)))))) (exists ((v_ULTIMATE.start_main_~main__x~0_8 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_8| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_8|))) (.cse2 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_8) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_8) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_8)))) (and (= .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 8.0 5.0))) (= (fp.div roundNearestTiesToEven .cse2 .cse1) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0))) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse2))))) is different from false [2020-12-04 10:23:46,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-04 10:23:46,601 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2020-12-04 10:23:46,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-04 10:23:46,603 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 6 [2020-12-04 10:23:46,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-04 10:23:46,604 INFO L225 Difference]: With dead ends: 11 [2020-12-04 10:23:46,604 INFO L226 Difference]: Without dead ends: 8 [2020-12-04 10:23:46,605 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.3s TimeCoverageRelationStatistics Valid=20, Invalid=16, Unknown=8, NotChecked=66, Total=110 [2020-12-04 10:23:46,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-12-04 10:23:46,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-12-04 10:23:46,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-04 10:23:46,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2020-12-04 10:23:46,610 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2020-12-04 10:23:46,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-04 10:23:46,611 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2020-12-04 10:23:46,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-04 10:23:46,611 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2020-12-04 10:23:46,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-04 10:23:46,612 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 10:23:46,612 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2020-12-04 10:23:46,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-04 10:23:46,813 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 10:23:46,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 10:23:46,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1805796550, now seen corresponding path program 2 times [2020-12-04 10:23:46,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-04 10:23:46,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [791919040] [2020-12-04 10:23:46,818 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-04 10:23:49,437 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-04 10:23:49,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-04 10:23:49,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-04 10:23:49,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-04 10:23:51,876 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_10| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_10|)))) (and (= ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)) .cse0) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse1) (= (fp.div c_~CRM .cse1 .cse0) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))))))) is different from false [2020-12-04 10:23:54,364 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_11 (_ BitVec 64))) (let ((.cse0 ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_9|))) (.cse4 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_11))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_10|))) (.cse3 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0)))) (and (= .cse0 .cse1) (= .cse0 .cse2) (= (fp.div c_~CRM .cse3 .cse1) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse4) (= (fp.div c_~CRM .cse4 .cse2) .cse3))))) is different from false [2020-12-04 10:23:57,375 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64))) (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|)))) (and (= ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)) .cse0) (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) (fp.div c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)) .cse0))))) (exists ((|v_ULTIMATE.start_main_#t~nondet10_9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_11 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_12 (_ BitVec 64))) (let ((.cse1 ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_10|))) (.cse4 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_11))) (.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_12) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_12) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_12))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_9|)))) (and (= .cse1 .cse2) (= .cse3 (fp.div c_~CRM .cse4 .cse5)) (= .cse1 .cse5) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse4) (= (fp.div c_~CRM .cse3 .cse2) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0))))))) is different from false [2020-12-04 10:23:57,445 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-04 10:23:57,454 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-04 10:23:57,468 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2020-12-04 10:23:57,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-04 10:23:57,840 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-12-04 10:24:00,116 WARN L860 $PredicateComparison]: unable to prove that (or (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (forall ((v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse2 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|)))) (or (not (= ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)) .cse0)) (not (fp.eq .cse1 .cse2)) (not (= .cse1 (fp.div c_~CRM .cse2 .cse0))))))) is different from true [2020-12-04 10:24:02,637 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet10_9| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_14 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64))) (let ((.cse0 ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_9|))) (.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse4 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_14))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|)))) (or (not (= .cse0 .cse1)) (not (= .cse0 .cse2)) (not (fp.eq .cse3 .cse4)) (not (= (fp.div c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) .cse2) .cse4)) (fp.eq .cse4 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (not (= .cse3 (fp.div c_~CRM .cse4 .cse1)))))) is different from true [2020-12-04 10:24:05,734 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet10_9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_14 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_15 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_15 (_ BitVec 64))) (let ((.cse0 ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0))) (.cse2 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_15) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_15) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_15))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_10|))) (.cse5 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.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_~main__x1~0_15) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_15) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_15))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_9|))) (.cse6 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_14)))) (or (not (= .cse0 .cse1)) (not (= ((_ to_fp 11 53) c_~CRM 1.0) .cse2)) (not (= .cse0 .cse3)) (not (= .cse0 .cse4)) (not (fp.eq .cse5 .cse6)) (not (= (fp.div c_~CRM .cse2 .cse4) .cse7)) (fp.eq .cse6 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (not (= .cse5 (fp.div c_~CRM .cse6 .cse1))) (not (= (fp.div c_~CRM .cse7 .cse3) .cse6))))) is different from true [2020-12-04 10:24:05,735 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2020-12-04 10:24:05,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [791919040] [2020-12-04 10:24:05,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-04 10:24:05,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2020-12-04 10:24:05,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452203320] [2020-12-04 10:24:05,737 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-04 10:24:05,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-04 10:24:05,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-04 10:24:05,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=19, Unknown=6, NotChecked=66, Total=110 [2020-12-04 10:24:05,739 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 11 states. [2020-12-04 10:24:12,000 WARN L197 SmtUtils]: Spent 3.09 s on a formula simplification that was a NOOP. DAG size: 67 [2020-12-04 10:24:16,182 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_10| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_10|)))) (and (= ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)) .cse0) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse1) (= (fp.div c_~CRM .cse1 .cse0) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)))))) (forall ((|v_ULTIMATE.start_main_#t~nondet10_9| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_14 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64))) (let ((.cse2 ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_9|))) (.cse5 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse6 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_14))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|)))) (or (not (= .cse2 .cse3)) (not (= .cse2 .cse4)) (not (fp.eq .cse5 .cse6)) (not (= (fp.div c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) .cse4) .cse6)) (fp.eq .cse6 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (not (= .cse5 (fp.div c_~CRM .cse6 .cse3)))))) (let ((.cse7 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)))) (or (fp.eq .cse7 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (not (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) .cse7))))) is different from false [2020-12-04 10:24:18,950 WARN L860 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_10| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_10|)))) (and (= ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)) .cse0) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse1) (= (fp.div c_~CRM .cse1 .cse0) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)))))) (forall ((|v_ULTIMATE.start_main_#t~nondet10_9| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_14 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64))) (let ((.cse2 ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_9|))) (.cse5 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse6 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_14))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|)))) (or (not (= .cse2 .cse3)) (not (= .cse2 .cse4)) (not (fp.eq .cse5 .cse6)) (not (= (fp.div c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) .cse4) .cse6)) (fp.eq .cse6 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (not (= .cse5 (fp.div c_~CRM .cse6 .cse3)))))) (let ((.cse7 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)))) (or (fp.eq .cse7 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (not (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) .cse7))))) is different from true [2020-12-04 10:24:21,417 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_11 (_ BitVec 64))) (let ((.cse0 ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_9|))) (.cse4 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_11))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_10|))) (.cse3 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0)))) (and (= .cse0 .cse1) (= .cse0 .cse2) (= (fp.div c_~CRM .cse3 .cse1) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse4) (= (fp.div c_~CRM .cse4 .cse2) .cse3)))) (or (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (forall ((v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64))) (let ((.cse6 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse7 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|)))) (or (not (= ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)) .cse5)) (not (fp.eq .cse6 .cse7)) (not (= .cse6 (fp.div c_~CRM .cse7 .cse5)))))))) is different from false [2020-12-04 10:24:26,431 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64))) (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|)))) (and (= ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)) .cse0) (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) (fp.div c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)) .cse0))))) (exists ((|v_ULTIMATE.start_main_#t~nondet10_9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_11 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_12 (_ BitVec 64))) (let ((.cse1 ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_10|))) (.cse4 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_11))) (.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_12) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_12) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_12))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_9|)))) (and (= .cse1 .cse2) (= .cse3 (fp.div c_~CRM .cse4 .cse5)) (= .cse1 .cse5) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse4) (= (fp.div c_~CRM .cse3 .cse2) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)))))) (let ((.cse6 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)))) (or (fp.eq .cse6 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (not (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) .cse6))))) is different from false [2020-12-04 10:24:31,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-04 10:24:31,197 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2020-12-04 10:24:31,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-04 10:24:31,198 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 7 [2020-12-04 10:24:31,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-04 10:24:31,198 INFO L225 Difference]: With dead ends: 12 [2020-12-04 10:24:31,198 INFO L226 Difference]: Without dead ends: 9 [2020-12-04 10:24:31,199 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.8s TimeCoverageRelationStatistics Valid=28, Invalid=27, Unknown=11, NotChecked=144, Total=210 [2020-12-04 10:24:31,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-12-04 10:24:31,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-12-04 10:24:31,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-04 10:24:31,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-12-04 10:24:31,204 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2020-12-04 10:24:31,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-04 10:24:31,204 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-12-04 10:24:31,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-04 10:24:31,204 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-12-04 10:24:31,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-04 10:24:31,205 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 10:24:31,205 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1] [2020-12-04 10:24:31,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-04 10:24:31,409 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 10:24:31,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 10:24:31,411 INFO L82 PathProgramCache]: Analyzing trace with hash 145055718, now seen corresponding path program 3 times [2020-12-04 10:24:31,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-04 10:24:31,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1985426681] [2020-12-04 10:24:31,412 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-04 10:24:35,131 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-12-04 10:24:35,132 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-04 10:24:35,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-04 10:24:35,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-04 10:24:37,660 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_12| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_12|)))) (and (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) (fp.div c_~CRM .cse0 .cse1)) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse0) (= ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)) .cse1)))) (= roundNearestTiesToEven c_~CRM)) is different from false [2020-12-04 10:24:40,180 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_14| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_12| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_16 (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_16) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_16) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_16))) (.cse4 ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_12|))) (.cse2 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_14|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_14|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_14|)))) (and (= ((_ to_fp 11 53) c_~CRM 1.0) .cse0) (= (fp.div c_~CRM .cse0 .cse1) .cse2) (= .cse3 .cse4) (= .cse4 .cse1) (= (fp.div c_~CRM .cse2 .cse3) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))))))) is different from false [2020-12-04 10:24:43,331 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet10_15| (_ BitVec 64)) (ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_14| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_12| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_16 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_17 (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_16) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_16) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_16))) (.cse4 ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_12|))) (.cse2 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_17) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_17) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_17))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_14|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_14|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_14|))) (.cse6 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_15|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_15|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_15|)))) (and (= ((_ to_fp 11 53) c_~CRM 1.0) .cse0) (= (fp.div c_~CRM .cse0 .cse1) .cse2) (= .cse3 .cse4) (= .cse5 .cse4) (= .cse4 .cse1) (= (fp.div c_~CRM .cse2 .cse3) .cse6) (= (fp.div c_~CRM .cse6 .cse5) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))))))) is different from false [2020-12-04 10:24:47,562 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet10_16| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_16|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_16|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_16|)))) (and (= (fp.div c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)) .cse0) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)) .cse0)))) (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet10_15| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_14| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_12| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_16 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_17 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_18 (_ BitVec 64))) (let ((.cse4 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_16) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_16) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_16))) (.cse1 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_17) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_17) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_17))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_14|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_14|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_14|))) (.cse6 ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_12|))) (.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_18) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_18) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_18))) (.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_15|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_15|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_15|)))) (and (= (fp.div c_~CRM .cse1 .cse2) .cse3) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse4) (= (fp.div c_~CRM .cse4 .cse5) .cse1) (= .cse2 .cse6) (= .cse7 .cse6) (= .cse6 .cse5) (= (fp.div c_~CRM .cse3 .cse7) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0))))))) is different from false [2020-12-04 10:24:47,621 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-04 10:24:47,624 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-04 10:24:47,634 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 6 not checked. [2020-12-04 10:24:47,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-04 10:24:48,089 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-12-04 10:24:50,351 WARN L860 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_main_#t~nondet10_16| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_19 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_19) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_19) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_19))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_16|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_16|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_16|)))) (or (not (fp.eq .cse0 .cse1)) (not (= (fp.div c_~CRM .cse1 .cse2) .cse0)) (not (= ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)) .cse2))))) (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) ((_ to_fp 11 53) c_~CRM (_ bv0 32)))) is different from true [2020-12-04 10:24:52,828 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet10_15| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_20 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_16| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_19 (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_16|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_16|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_16|))) (.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_19) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_19) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_19))) (.cse1 ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_15|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_15|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_15|))) (.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_20) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_20) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_20)))) (or (fp.eq .cse0 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (not (= .cse1 .cse2)) (not (fp.eq .cse3 .cse0)) (not (= (fp.div c_~CRM .cse0 .cse2) .cse3)) (not (= .cse4 .cse1)) (not (= (fp.div c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) .cse4) .cse0))))) is different from true [2020-12-04 10:24:55,735 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~main__x1~0_21 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_15| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_20 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_16| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_14| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_19 (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_20) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_20) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_20))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_16|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_16|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_16|))) (.cse5 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_19) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_19) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_19))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_15|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_15|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_15|))) (.cse1 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_21) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_21) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_21))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_14|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_14|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_14|))) (.cse3 ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)))) (or (not (= .cse0 (fp.div c_~CRM .cse1 .cse2))) (fp.eq .cse0 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (not (= .cse3 .cse4)) (not (fp.eq .cse5 .cse0)) (not (= (fp.div c_~CRM .cse0 .cse4) .cse5)) (not (= .cse2 .cse3)) (not (= .cse1 (fp.div c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) .cse6))) (not (= .cse6 .cse3))))) is different from true [2020-12-04 10:24:59,700 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~main__x1~0_21 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_15| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_20 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_16| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_22 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_14| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_12| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_22 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_19 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_21) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_21) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_21))) (.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_20) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_20) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_20))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_16|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_16|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_16|))) (.cse8 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_19) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_19) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_19))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_15|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_15|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_15|))) (.cse9 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_22) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_22) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_22))) (.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_12|))) (.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_22) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_22) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_22))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_14|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_14|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_14|))) (.cse5 ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)))) (or (not (= .cse0 (fp.div c_~CRM .cse1 .cse2))) (fp.eq .cse0 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (not (= .cse1 (fp.div c_~CRM .cse3 .cse4))) (not (= .cse5 .cse6)) (not (= .cse5 .cse7)) (not (fp.eq .cse8 .cse0)) (not (= (fp.div c_~CRM .cse0 .cse6) .cse8)) (not (= .cse2 .cse5)) (not (= .cse9 ((_ to_fp 11 53) c_~CRM 1.0))) (not (= (fp.div c_~CRM .cse9 .cse7) .cse3)) (not (= .cse4 .cse5))))) is different from true [2020-12-04 10:24:59,702 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 6 not checked. [2020-12-04 10:24:59,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1985426681] [2020-12-04 10:24:59,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-04 10:24:59,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2020-12-04 10:24:59,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305433678] [2020-12-04 10:24:59,704 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-04 10:24:59,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-04 10:24:59,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-04 10:24:59,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=21, Unknown=8, NotChecked=104, Total=156 [2020-12-04 10:24:59,706 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 13 states. [2020-12-04 10:25:02,211 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-12-04 10:25:02,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-04 10:25:02,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-04 10:25:02,415 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:226) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:153) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:934) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:773) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:388) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:281) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:78) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1064) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:966) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:187) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:743) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:674) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:138) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) ... 45 more [2020-12-04 10:25:02,422 INFO L168 Benchmark]: Toolchain (without parser) took 153220.53 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 29.3 MB in the beginning and 35.0 MB in the end (delta: -5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-04 10:25:02,423 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 41.9 MB. Free memory was 20.1 MB in the beginning and 20.0 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-04 10:25:02,424 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.24 ms. Allocated memory is still 52.4 MB. Free memory was 29.0 MB in the beginning and 30.1 MB in the end (delta: -1.0 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-12-04 10:25:02,425 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.01 ms. Allocated memory is still 52.4 MB. Free memory was 30.1 MB in the beginning and 28.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-04 10:25:02,426 INFO L168 Benchmark]: Boogie Preprocessor took 32.57 ms. Allocated memory is still 52.4 MB. Free memory was 28.7 MB in the beginning and 27.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-04 10:25:02,427 INFO L168 Benchmark]: RCFGBuilder took 4799.11 ms. Allocated memory is still 52.4 MB. Free memory was 27.4 MB in the beginning and 28.7 MB in the end (delta: -1.3 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2020-12-04 10:25:02,427 INFO L168 Benchmark]: TraceAbstraction took 148052.25 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 28.3 MB in the beginning and 35.0 MB in the end (delta: -6.7 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-12-04 10:25:02,432 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 41.9 MB. Free memory was 20.1 MB in the beginning and 20.0 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 284.24 ms. Allocated memory is still 52.4 MB. Free memory was 29.0 MB in the beginning and 30.1 MB in the end (delta: -1.0 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.01 ms. Allocated memory is still 52.4 MB. Free memory was 30.1 MB in the beginning and 28.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.57 ms. Allocated memory is still 52.4 MB. Free memory was 28.7 MB in the beginning and 27.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 4799.11 ms. Allocated memory is still 52.4 MB. Free memory was 27.4 MB in the beginning and 28.7 MB in the end (delta: -1.3 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 148052.25 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 28.3 MB in the beginning and 35.0 MB in the end (delta: -6.7 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...