./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-benchs/zonotope_loose.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2880296f 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/float-benchs/zonotope_loose.c.v+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 bbabbac29d53fb5c08c994976f0cc24cf1493748 ........................................................................................................................................................................................................................................................................................................ 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/float-benchs/zonotope_loose.c.v+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 bbabbac29d53fb5c08c994976f0cc24cf1493748 ................................................................................................................................................................................................................................................................................................................................................................................................................. 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. No stderr output. --- Real Ultimate output --- This is Ultimate 0.2.0-2880296 [2020-12-02 14:57:15,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 14:57:15,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 14:57:15,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 14:57:15,904 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 14:57:15,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 14:57:15,908 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 14:57:15,910 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 14:57:15,913 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 14:57:15,914 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 14:57:15,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 14:57:15,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 14:57:15,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 14:57:15,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 14:57:15,921 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 14:57:15,922 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 14:57:15,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 14:57:15,925 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 14:57:15,927 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 14:57:15,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 14:57:15,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 14:57:15,934 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 14:57:15,937 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 14:57:15,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 14:57:15,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 14:57:15,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 14:57:15,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 14:57:15,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 14:57:15,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 14:57:15,959 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 14:57:15,959 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 14:57:15,960 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 14:57:15,962 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 14:57:15,964 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 14:57:15,966 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 14:57:15,967 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 14:57:15,975 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 14:57:15,976 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 14:57:15,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 14:57:15,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 14:57:15,978 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 14:57:15,979 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 14:57:16,010 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 14:57:16,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 14:57:16,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 14:57:16,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 14:57:16,013 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 14:57:16,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 14:57:16,013 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 14:57:16,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 14:57:16,014 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 14:57:16,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 14:57:16,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 14:57:16,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 14:57:16,015 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 14:57:16,015 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 14:57:16,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 14:57:16,016 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 14:57:16,016 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 14:57:16,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 14:57:16,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 14:57:16,017 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 14:57:16,017 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 14:57:16,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 14:57:16,017 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 14:57:16,018 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 14:57:16,018 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 14:57:16,018 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 14:57:16,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 14:57:16,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 14:57:16,019 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 14:57:16,019 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bbabbac29d53fb5c08c994976f0cc24cf1493748 [2020-12-02 14:57:16,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 14:57:16,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 14:57:16,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 14:57:16,483 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 14:57:16,485 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 14:57:16,487 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/zonotope_loose.c.v+cfa-reducer.c [2020-12-02 14:57:16,582 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0569505b1/4785dc98162245378f8e8ced10311f76/FLAG293803ef0 [2020-12-02 14:57:17,101 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 14:57:17,102 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/zonotope_loose.c.v+cfa-reducer.c [2020-12-02 14:57:17,111 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0569505b1/4785dc98162245378f8e8ced10311f76/FLAG293803ef0 [2020-12-02 14:57:17,518 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0569505b1/4785dc98162245378f8e8ced10311f76 [2020-12-02 14:57:17,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 14:57:17,527 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 14:57:17,530 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 14:57:17,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 14:57:17,536 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 14:57:17,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:57:17" (1/1) ... [2020-12-02 14:57:17,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b78e14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:17, skipping insertion in model container [2020-12-02 14:57:17,548 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:57:17" (1/1) ... [2020-12-02 14:57:17,558 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 14:57:17,583 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 14:57:17,861 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/zonotope_loose.c.v+cfa-reducer.c[1094,1107] [2020-12-02 14:57:17,868 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:57:17,884 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 14:57:17,914 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/zonotope_loose.c.v+cfa-reducer.c[1094,1107] [2020-12-02 14:57:17,919 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:57:17,939 INFO L217 MainTranslator]: Completed translation [2020-12-02 14:57:17,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:17 WrapperNode [2020-12-02 14:57:17,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 14:57:17,942 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 14:57:17,942 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 14:57:17,942 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 14:57:17,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:17" (1/1) ... [2020-12-02 14:57:17,959 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:17" (1/1) ... [2020-12-02 14:57:17,980 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 14:57:17,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 14:57:17,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 14:57:17,981 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 14:57:17,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:17" (1/1) ... [2020-12-02 14:57:17,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:17" (1/1) ... [2020-12-02 14:57:17,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:17" (1/1) ... [2020-12-02 14:57:17,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:17" (1/1) ... [2020-12-02 14:57:17,999 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:17" (1/1) ... [2020-12-02 14:57:18,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:17" (1/1) ... [2020-12-02 14:57:18,003 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:17" (1/1) ... [2020-12-02 14:57:18,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 14:57:18,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 14:57:18,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 14:57:18,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 14:57:18,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:17" (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 [2020-12-02 14:57:18,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 14:57:18,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 14:57:18,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 14:57:18,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 14:57:18,396 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 14:57:18,396 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-02 14:57:18,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:57:18 BoogieIcfgContainer [2020-12-02 14:57:18,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 14:57:18,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 14:57:18,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 14:57:18,405 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 14:57:18,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:57:17" (1/3) ... [2020-12-02 14:57:18,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49aa4014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:57:18, skipping insertion in model container [2020-12-02 14:57:18,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:17" (2/3) ... [2020-12-02 14:57:18,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49aa4014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:57:18, skipping insertion in model container [2020-12-02 14:57:18,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:57:18" (3/3) ... [2020-12-02 14:57:18,410 INFO L111 eAbstractionObserver]: Analyzing ICFG zonotope_loose.c.v+cfa-reducer.c [2020-12-02 14:57:18,450 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 14:57:18,457 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 14:57:18,485 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 14:57:18,517 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 14:57:18,518 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 14:57:18,518 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 14:57:18,519 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 14:57:18,519 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 14:57:18,519 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 14:57:18,520 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 14:57:18,520 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 14:57:18,538 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-12-02 14:57:18,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 14:57:18,545 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 14:57:18,546 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 14:57:18,547 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 14:57:18,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 14:57:18,554 INFO L82 PathProgramCache]: Analyzing trace with hash 570602568, now seen corresponding path program 1 times [2020-12-02 14:57:18,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 14:57:18,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320555497] [2020-12-02 14:57:18,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 14:57:18,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 14:57:18,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:57:18,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320555497] [2020-12-02 14:57:18,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 14:57:18,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-02 14:57:18,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910344837] [2020-12-02 14:57:18,888 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 14:57:18,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 14:57:18,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 14:57:18,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-02 14:57:18,915 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 5 states. [2020-12-02 14:57:19,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 14:57:19,065 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2020-12-02 14:57:19,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-02 14:57:19,067 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-02 14:57:19,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 14:57:19,076 INFO L225 Difference]: With dead ends: 30 [2020-12-02 14:57:19,077 INFO L226 Difference]: Without dead ends: 14 [2020-12-02 14:57:19,080 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-02 14:57:19,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-12-02 14:57:19,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-12-02 14:57:19,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-12-02 14:57:19,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2020-12-02 14:57:19,115 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 12 [2020-12-02 14:57:19,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 14:57:19,115 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2020-12-02 14:57:19,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 14:57:19,115 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2020-12-02 14:57:19,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 14:57:19,116 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 14:57:19,116 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 14:57:19,117 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 14:57:19,117 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 14:57:19,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 14:57:19,118 INFO L82 PathProgramCache]: Analyzing trace with hash 587613229, now seen corresponding path program 1 times [2020-12-02 14:57:19,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 14:57:19,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297214811] [2020-12-02 14:57:19,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 14:57:19,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 14:57:19,140 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 14:57:19,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 14:57:19,157 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 14:57:19,181 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-02 14:57:19,181 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-02 14:57:19,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-02 14:57:19,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:57:19 BoogieIcfgContainer [2020-12-02 14:57:19,217 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 14:57:19,218 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 14:57:19,218 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 14:57:19,218 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 14:57:19,219 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:57:18" (3/4) ... [2020-12-02 14:57:19,223 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-02 14:57:19,223 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 14:57:19,226 INFO L168 Benchmark]: Toolchain (without parser) took 1697.84 ms. Allocated memory was 46.1 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Free memory was 24.1 MB in the beginning and 29.2 MB in the end (delta: -5.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2020-12-02 14:57:19,227 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 37.7 MB. Free memory was 20.3 MB in the beginning and 20.2 MB in the end (delta: 56.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:57:19,228 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.50 ms. Allocated memory is still 46.1 MB. Free memory was 23.9 MB in the beginning and 25.2 MB in the end (delta: -1.3 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-12-02 14:57:19,229 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.62 ms. Allocated memory is still 46.1 MB. Free memory was 25.2 MB in the beginning and 23.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 14:57:19,229 INFO L168 Benchmark]: Boogie Preprocessor took 24.62 ms. Allocated memory is still 46.1 MB. Free memory was 23.7 MB in the beginning and 22.7 MB in the end (delta: 996.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:57:19,230 INFO L168 Benchmark]: RCFGBuilder took 392.38 ms. Allocated memory is still 46.1 MB. Free memory was 22.7 MB in the beginning and 21.8 MB in the end (delta: 921.1 kB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-12-02 14:57:19,231 INFO L168 Benchmark]: TraceAbstraction took 816.47 ms. Allocated memory was 46.1 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Free memory was 21.4 MB in the beginning and 29.5 MB in the end (delta: -8.2 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2020-12-02 14:57:19,232 INFO L168 Benchmark]: Witness Printer took 5.06 ms. Allocated memory is still 58.7 MB. Free memory was 29.5 MB in the beginning and 29.2 MB in the end (delta: 369.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:57:19,237 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 37.7 MB. Free memory was 20.3 MB in the beginning and 20.2 MB in the end (delta: 56.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 410.50 ms. Allocated memory is still 46.1 MB. Free memory was 23.9 MB in the beginning and 25.2 MB in the end (delta: -1.3 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.62 ms. Allocated memory is still 46.1 MB. Free memory was 25.2 MB in the beginning and 23.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.62 ms. Allocated memory is still 46.1 MB. Free memory was 23.7 MB in the beginning and 22.7 MB in the end (delta: 996.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 392.38 ms. Allocated memory is still 46.1 MB. Free memory was 22.7 MB in the beginning and 21.8 MB in the end (delta: 921.1 kB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 816.47 ms. Allocated memory was 46.1 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Free memory was 21.4 MB in the beginning and 29.5 MB in the end (delta: -8.2 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. * Witness Printer took 5.06 ms. Allocated memory is still 58.7 MB. Free memory was 29.5 MB in the beginning and 29.2 MB in the end (delta: 369.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 45]: 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 69, overapproximation of someBinaryDOUBLE_SMTComparisonOperation at line 32. Possible FailurePath: [L1] int __return_main; [L12] int __return_76; VAL [__return_76=0, __return_main=0] [L15] double main__x; [L16] double main__y; [L17] main__x = __VERIFIER_nondet_double() [L18] int main____CPAchecker_TMP_0; VAL [__return_76=0, __return_main=0] [L19] COND TRUE main__x >= 0.0 VAL [__return_76=0, __return_main=0] [L21] COND TRUE main__x <= 10.0 [L23] main____CPAchecker_TMP_0 = 1 VAL [__return_76=0, __return_main=0] [L24] COND TRUE main____CPAchecker_TMP_0 != 0 [L26] main__y = (main__x * main__x) - main__x VAL [__return_76=0, __return_main=0] [L27] COND FALSE !(main__y >= 0) [L69] main__y = (main__x * main__x) + 2.0 VAL [__return_76=0, __return_main=0] [L31] int main____CPAchecker_TMP_1; VAL [__return_76=0, __return_main=0] [L32] COND FALSE !(main__y >= 0.0) VAL [__return_76=0, __return_main=0] [L58] main____CPAchecker_TMP_1 = 0 VAL [__return_76=0, __return_main=0] [L39] int __tmp_1; [L40] __tmp_1 = main____CPAchecker_TMP_1 [L41] int __VERIFIER_assert__cond; [L42] __VERIFIER_assert__cond = __tmp_1 VAL [__return_76=0, __return_main=0] [L43] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_76=0, __return_main=0] [L45] reach_error() VAL [__return_76=0, __return_main=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 28 SDslu, 39 SDs, 0 SdLazy, 13 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 209 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 0.2.0-2880296 [2020-12-02 14:57:21,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 14:57:21,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 14:57:21,836 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 14:57:21,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 14:57:21,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 14:57:21,841 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 14:57:21,843 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 14:57:21,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 14:57:21,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 14:57:21,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 14:57:21,851 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 14:57:21,851 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 14:57:21,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 14:57:21,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 14:57:21,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 14:57:21,858 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 14:57:21,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 14:57:21,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 14:57:21,865 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 14:57:21,868 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 14:57:21,870 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 14:57:21,872 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 14:57:21,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 14:57:21,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 14:57:21,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 14:57:21,878 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 14:57:21,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 14:57:21,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 14:57:21,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 14:57:21,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 14:57:21,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 14:57:21,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 14:57:21,887 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 14:57:21,889 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 14:57:21,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 14:57:21,890 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 14:57:21,891 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 14:57:21,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 14:57:21,893 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 14:57:21,894 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 14:57:21,895 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 14:57:21,924 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 14:57:21,924 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 14:57:21,926 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 14:57:21,927 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 14:57:21,927 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 14:57:21,927 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 14:57:21,927 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 14:57:21,928 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 14:57:21,928 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 14:57:21,928 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 14:57:21,929 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 14:57:21,929 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 14:57:21,929 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 14:57:21,930 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 14:57:21,930 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 14:57:21,930 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 14:57:21,930 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 14:57:21,931 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 14:57:21,931 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 14:57:21,931 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 14:57:21,932 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 14:57:21,932 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 14:57:21,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 14:57:21,933 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 14:57:21,933 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 14:57:21,933 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 14:57:21,934 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 14:57:21,934 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-02 14:57:21,934 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 14:57:21,935 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 14:57:21,935 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 14:57:21,935 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bbabbac29d53fb5c08c994976f0cc24cf1493748 [2020-12-02 14:57:22,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 14:57:22,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 14:57:22,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 14:57:22,467 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 14:57:22,468 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 14:57:22,469 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/zonotope_loose.c.v+cfa-reducer.c [2020-12-02 14:57:22,578 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c99b76ca5/0fee49c92efe47c98ffa8e451486d336/FLAG2bf6bd6ce [2020-12-02 14:57:23,184 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 14:57:23,185 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/zonotope_loose.c.v+cfa-reducer.c [2020-12-02 14:57:23,194 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c99b76ca5/0fee49c92efe47c98ffa8e451486d336/FLAG2bf6bd6ce [2020-12-02 14:57:23,572 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c99b76ca5/0fee49c92efe47c98ffa8e451486d336 [2020-12-02 14:57:23,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 14:57:23,582 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 14:57:23,586 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 14:57:23,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 14:57:23,591 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 14:57:23,592 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:57:23" (1/1) ... [2020-12-02 14:57:23,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6db57c79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:23, skipping insertion in model container [2020-12-02 14:57:23,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:57:23" (1/1) ... [2020-12-02 14:57:23,606 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 14:57:23,627 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 14:57:23,856 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/zonotope_loose.c.v+cfa-reducer.c[1094,1107] [2020-12-02 14:57:23,865 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:57:23,883 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 14:57:23,904 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/zonotope_loose.c.v+cfa-reducer.c[1094,1107] [2020-12-02 14:57:23,908 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:57:23,927 INFO L217 MainTranslator]: Completed translation [2020-12-02 14:57:23,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:23 WrapperNode [2020-12-02 14:57:23,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 14:57:23,929 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 14:57:23,930 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 14:57:23,930 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 14:57:23,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:23" (1/1) ... [2020-12-02 14:57:23,951 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:23" (1/1) ... [2020-12-02 14:57:23,977 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 14:57:23,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 14:57:23,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 14:57:23,978 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 14:57:23,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:23" (1/1) ... [2020-12-02 14:57:23,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:23" (1/1) ... [2020-12-02 14:57:23,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:23" (1/1) ... [2020-12-02 14:57:23,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:23" (1/1) ... [2020-12-02 14:57:24,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:23" (1/1) ... [2020-12-02 14:57:24,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:23" (1/1) ... [2020-12-02 14:57:24,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:23" (1/1) ... [2020-12-02 14:57:24,008 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 14:57:24,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 14:57:24,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 14:57:24,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 14:57:24,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:23" (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 [2020-12-02 14:57:24,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-12-02 14:57:24,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-02 14:57:24,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 14:57:24,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 14:57:24,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 14:57:30,821 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 14:57:30,821 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-02 14:57:30,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:57:30 BoogieIcfgContainer [2020-12-02 14:57:30,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 14:57:30,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 14:57:30,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 14:57:30,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 14:57:30,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:57:23" (1/3) ... [2020-12-02 14:57:30,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@764b4a57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:57:30, skipping insertion in model container [2020-12-02 14:57:30,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:23" (2/3) ... [2020-12-02 14:57:30,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@764b4a57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:57:30, skipping insertion in model container [2020-12-02 14:57:30,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:57:30" (3/3) ... [2020-12-02 14:57:30,837 INFO L111 eAbstractionObserver]: Analyzing ICFG zonotope_loose.c.v+cfa-reducer.c [2020-12-02 14:57:30,854 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 14:57:30,859 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 14:57:30,873 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 14:57:30,901 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 14:57:30,901 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 14:57:30,901 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 14:57:30,902 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 14:57:30,902 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 14:57:30,902 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 14:57:30,902 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 14:57:30,903 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 14:57:30,918 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-12-02 14:57:30,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 14:57:30,924 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 14:57:30,925 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 14:57:30,926 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 14:57:30,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 14:57:30,933 INFO L82 PathProgramCache]: Analyzing trace with hash 570602568, now seen corresponding path program 1 times [2020-12-02 14:57:30,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 14:57:30,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1009321870] [2020-12-02 14:57:30,949 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 [2020-12-02 14:57:31,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 14:57:31,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-02 14:57:31,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 14:57:31,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:57:31,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 14:57:31,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:57:31,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1009321870] [2020-12-02 14:57:31,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 14:57:31,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-12-02 14:57:31,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009192670] [2020-12-02 14:57:31,743 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-02 14:57:31,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 14:57:31,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-02 14:57:31,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-02 14:57:31,770 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 6 states. [2020-12-02 14:57:31,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 14:57:31,947 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2020-12-02 14:57:31,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-02 14:57:31,950 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-12-02 14:57:31,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 14:57:31,960 INFO L225 Difference]: With dead ends: 30 [2020-12-02 14:57:31,961 INFO L226 Difference]: Without dead ends: 14 [2020-12-02 14:57:31,964 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-02 14:57:31,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-12-02 14:57:32,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-12-02 14:57:32,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-12-02 14:57:32,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2020-12-02 14:57:32,010 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 12 [2020-12-02 14:57:32,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 14:57:32,011 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2020-12-02 14:57:32,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-02 14:57:32,011 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2020-12-02 14:57:32,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 14:57:32,012 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 14:57:32,012 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 14:57:32,226 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-02 14:57:32,227 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 14:57:32,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 14:57:32,228 INFO L82 PathProgramCache]: Analyzing trace with hash 587613229, now seen corresponding path program 1 times [2020-12-02 14:57:32,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 14:57:32,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [285531228] [2020-12-02 14:57:32,230 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 [2020-12-02 14:57:32,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 14:57:32,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-02 14:57:32,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 14:57:34,904 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet9_7| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet16_5| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet17_5| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet16_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet16_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet16_5|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet17_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet17_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet17_5|))) (.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)))) (and (= ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse0) (= .cse1 (fp.mul roundNearestTiesToEven .cse2 .cse2)) (= (fp.add roundNearestTiesToEven .cse1 .cse0) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__y~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__y~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__y~0))) (fp.leq .cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_7|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_7|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_7|)))))) is different from false [2020-12-02 14:57:36,931 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet9_7| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet16_5| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet17_5| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet16_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet16_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet16_5|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet17_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet17_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet17_5|))) (.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)))) (and (= ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse0) (= .cse1 (fp.mul roundNearestTiesToEven .cse2 .cse2)) (= (fp.add roundNearestTiesToEven .cse1 .cse0) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__y~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__y~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__y~0))) (fp.leq .cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_7|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_7|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_7|)))))) is different from true [2020-12-02 14:57:38,986 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet9_7| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet16_5| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet17_5| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet16_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet16_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet16_5|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet17_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet17_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet17_5|))) (.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)))) (and (= ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse0) (= .cse1 (fp.mul roundNearestTiesToEven .cse2 .cse2)) (= (fp.add roundNearestTiesToEven .cse1 .cse0) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__y~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__y~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__y~0))) (fp.leq .cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_7|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_7|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_7|)))))) (= (_ +zero 11 53) (fp ((_ extract 63 63) |c_ULTIMATE.start_main_#t~nondet14|) ((_ extract 62 52) |c_ULTIMATE.start_main_#t~nondet14|) ((_ extract 51 0) |c_ULTIMATE.start_main_#t~nondet14|)))) is different from false [2020-12-02 14:57:45,137 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet9_7| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet16_5| (_ BitVec 64)) (ULTIMATE.start_main_~main__y~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet14_7| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet17_5| (_ BitVec 64))) (let ((.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet16_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet16_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet16_5|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet17_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet17_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet17_5|))) (.cse0 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__y~0) ((_ extract 62 52) ULTIMATE.start_main_~main__y~0) ((_ extract 51 0) ULTIMATE.start_main_~main__y~0))) (.cse4 (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~nondet14_7|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet14_7|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet14_7|)))) (and (not (fp.geq .cse0 .cse1)) (= ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse2) (= .cse3 (fp.mul roundNearestTiesToEven .cse4 .cse4)) (= (fp.add roundNearestTiesToEven .cse3 .cse2) .cse0) (fp.leq .cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_7|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_7|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_7|))) (= .cse1 (_ +zero 11 53))))) is different from false [2020-12-02 14:57:47,166 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet9_7| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet16_5| (_ BitVec 64)) (ULTIMATE.start_main_~main__y~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet14_7| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet17_5| (_ BitVec 64))) (let ((.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet16_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet16_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet16_5|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet17_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet17_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet17_5|))) (.cse0 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__y~0) ((_ extract 62 52) ULTIMATE.start_main_~main__y~0) ((_ extract 51 0) ULTIMATE.start_main_~main__y~0))) (.cse4 (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~nondet14_7|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet14_7|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet14_7|)))) (and (not (fp.geq .cse0 .cse1)) (= ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse2) (= .cse3 (fp.mul roundNearestTiesToEven .cse4 .cse4)) (= (fp.add roundNearestTiesToEven .cse3 .cse2) .cse0) (fp.leq .cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_7|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_7|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_7|))) (= .cse1 (_ +zero 11 53))))) is different from true [2020-12-02 14:57:59,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:57:59,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 14:58:01,685 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~main__y~0_13 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet16_5| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet17_5| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet14_9| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet17_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet17_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet17_5|))) (.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__y~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~main__y~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~main__y~0_13))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet14_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet14_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet14_9|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet16_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet16_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet16_5|)))) (or (not (= .cse0 (fp.add c_~CRM .cse1 .cse2))) (not (= ((_ to_fp 11 53) c_~CRM 2.0) .cse2)) (fp.geq .cse0 .cse3) (not (= .cse3 (_ +zero 11 53))) (not (= (let ((.cse4 (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)))) (fp.mul c_~CRM .cse4 .cse4)) .cse1))))) is different from true [2020-12-02 14:58:03,744 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__y~0_13 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet16_5| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet17_5| (_ BitVec 64)) (|ULTIMATE.start_main_#t~nondet9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet14_9| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet17_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet17_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet17_5|))) (.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__y~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~main__y~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~main__y~0_13))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet14_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet14_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet14_9|))) (.cse4 (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~nondet16_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet16_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet16_5|)))) (or (not (= .cse0 (fp.add c_~CRM .cse1 .cse2))) (not (= ((_ to_fp 11 53) c_~CRM 2.0) .cse2)) (fp.geq .cse0 .cse3) (not (= .cse3 (_ +zero 11 53))) (not (fp.leq .cse4 (fp ((_ extract 63 63) |ULTIMATE.start_main_#t~nondet9|) ((_ extract 62 52) |ULTIMATE.start_main_#t~nondet9|) ((_ extract 51 0) |ULTIMATE.start_main_#t~nondet9|)))) (not (= (fp.mul c_~CRM .cse4 .cse4) .cse1))))) is different from false [2020-12-02 14:58:05,781 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__y~0_13 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet16_5| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet17_5| (_ BitVec 64)) (|ULTIMATE.start_main_#t~nondet9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet14_9| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet17_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet17_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet17_5|))) (.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__y~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~main__y~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~main__y~0_13))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet14_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet14_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet14_9|))) (.cse4 (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~nondet16_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet16_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet16_5|)))) (or (not (= .cse0 (fp.add c_~CRM .cse1 .cse2))) (not (= ((_ to_fp 11 53) c_~CRM 2.0) .cse2)) (fp.geq .cse0 .cse3) (not (= .cse3 (_ +zero 11 53))) (not (fp.leq .cse4 (fp ((_ extract 63 63) |ULTIMATE.start_main_#t~nondet9|) ((_ extract 62 52) |ULTIMATE.start_main_#t~nondet9|) ((_ extract 51 0) |ULTIMATE.start_main_#t~nondet9|)))) (not (= (fp.mul c_~CRM .cse4 .cse4) .cse1))))) is different from true [2020-12-02 14:58:05,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:58:05,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [285531228] [2020-12-02 14:58:05,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 14:58:05,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 10 [2020-12-02 14:58:05,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092967499] [2020-12-02 14:58:05,817 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-02 14:58:05,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 14:58:05,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-02 14:58:05,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=8, NotChecked=60, Total=110 [2020-12-02 14:58:05,820 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 11 states. [2020-12-02 14:58:07,884 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (forall ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__y~0_13 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet16_5| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet17_5| (_ BitVec 64)) (|ULTIMATE.start_main_#t~nondet9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet14_9| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet17_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet17_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet17_5|))) (.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__y~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~main__y~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~main__y~0_13))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet14_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet14_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet14_9|))) (.cse4 (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~nondet16_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet16_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet16_5|)))) (or (not (= .cse0 (fp.add c_~CRM .cse1 .cse2))) (not (= ((_ to_fp 11 53) c_~CRM 2.0) .cse2)) (fp.geq .cse0 .cse3) (not (= .cse3 (_ +zero 11 53))) (not (fp.leq .cse4 (fp ((_ extract 63 63) |ULTIMATE.start_main_#t~nondet9|) ((_ extract 62 52) |ULTIMATE.start_main_#t~nondet9|) ((_ extract 51 0) |ULTIMATE.start_main_#t~nondet9|)))) (not (= (fp.mul c_~CRM .cse4 .cse4) .cse1)))))) is different from false [2020-12-02 14:58:09,954 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet9_7| (_ BitVec 64))) (fp.leq (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)) (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_7|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_7|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_7|)))) (= roundNearestTiesToEven c_~CRM) (forall ((v_ULTIMATE.start_main_~main__y~0_13 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet16_5| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet17_5| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet14_9| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet17_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet17_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet17_5|))) (.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__y~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~main__y~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~main__y~0_13))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet14_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet14_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet14_9|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet16_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet16_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet16_5|)))) (or (not (= .cse0 (fp.add c_~CRM .cse1 .cse2))) (not (= ((_ to_fp 11 53) c_~CRM 2.0) .cse2)) (fp.geq .cse0 .cse3) (not (= .cse3 (_ +zero 11 53))) (not (= (let ((.cse4 (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)))) (fp.mul c_~CRM .cse4 .cse4)) .cse1)))))) is different from true [2020-12-02 14:58:11,994 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet9_7| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet16_5| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet17_5| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet16_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet16_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet16_5|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet17_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet17_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet17_5|))) (.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)))) (and (= ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse0) (= .cse1 (fp.mul roundNearestTiesToEven .cse2 .cse2)) (= (fp.add roundNearestTiesToEven .cse1 .cse0) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__y~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__y~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__y~0))) (fp.leq .cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_7|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_7|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_7|)))))) (forall ((|v_ULTIMATE.start_main_#t~nondet14_9| (_ BitVec 64))) (let ((.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet14_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet14_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet14_9|)))) (or (fp.geq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__y~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__y~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__y~0)) .cse3) (not (= .cse3 (_ +zero 11 53))))))) is different from false [2020-12-02 14:58:14,042 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (fp ((_ extract 63 63) |c_ULTIMATE.start_main_#t~nondet14|) ((_ extract 62 52) |c_ULTIMATE.start_main_#t~nondet14|) ((_ extract 51 0) |c_ULTIMATE.start_main_#t~nondet14|)))) (and (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet9_7| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet16_5| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet17_5| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet16_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet16_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet16_5|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet17_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet17_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet17_5|))) (.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)))) (and (= ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse0) (= .cse1 (fp.mul roundNearestTiesToEven .cse2 .cse2)) (= (fp.add roundNearestTiesToEven .cse1 .cse0) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__y~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__y~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__y~0))) (fp.leq .cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_7|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_7|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_7|)))))) (= (_ +zero 11 53) .cse3) (fp.geq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__y~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__y~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__y~0)) .cse3))) is different from false [2020-12-02 14:58:14,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 14:58:14,126 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2020-12-02 14:58:14,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-02 14:58:14,129 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2020-12-02 14:58:14,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 14:58:14,130 INFO L225 Difference]: With dead ends: 21 [2020-12-02 14:58:14,130 INFO L226 Difference]: Without dead ends: 16 [2020-12-02 14:58:14,132 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 24.7s TimeCoverageRelationStatistics Valid=28, Invalid=26, Unknown=12, NotChecked=144, Total=210 [2020-12-02 14:58:14,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-12-02 14:58:14,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-12-02 14:58:14,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-02 14:58:14,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-12-02 14:58:14,137 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 12 [2020-12-02 14:58:14,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 14:58:14,137 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-12-02 14:58:14,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-02 14:58:14,137 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-12-02 14:58:14,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 14:58:14,138 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 14:58:14,138 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 14:58:14,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-02 14:58:14,350 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 14:58:14,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 14:58:14,352 INFO L82 PathProgramCache]: Analyzing trace with hash -125142316, now seen corresponding path program 1 times [2020-12-02 14:58:14,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 14:58:14,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1533550884] [2020-12-02 14:58:14,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-12-02 14:58:15,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 14:58:15,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-02 14:58:15,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 14:58:17,965 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_10| (_ BitVec 64)) (~CRM RoundingMode)) (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~nondet12_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_6|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_10|)))) (and (= ((_ to_fp 11 53) ~CRM 10.0) .cse0) (fp.geq .cse1 .cse2) (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__y~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__y~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__y~0)) (fp.div ~CRM .cse1 .cse0)) (= (_ +zero 11 53) .cse2)))) is different from false [2020-12-02 14:58:20,048 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_10| (_ BitVec 64)) (~CRM RoundingMode)) (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~nondet12_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_6|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_10|)))) (and (= ((_ to_fp 11 53) ~CRM 10.0) .cse0) (fp.geq .cse1 .cse2) (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__y~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__y~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__y~0)) (fp.div ~CRM .cse1 .cse0)) (= (_ +zero 11 53) .cse2)))) is different from true [2020-12-02 14:58:22,273 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ +zero 11 53) (fp ((_ extract 63 63) |c_ULTIMATE.start_main_#t~nondet14|) ((_ extract 62 52) |c_ULTIMATE.start_main_#t~nondet14|) ((_ extract 51 0) |c_ULTIMATE.start_main_#t~nondet14|))) (exists ((|v_ULTIMATE.start_main_#t~nondet12_6| (_ BitVec 64)) (ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_10| (_ BitVec 64)) (~CRM RoundingMode)) (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~nondet12_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_6|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_10|)))) (and (= ((_ to_fp 11 53) ~CRM 10.0) .cse0) (fp.geq .cse1 .cse2) (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__y~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__y~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__y~0)) (fp.div ~CRM .cse1 .cse0)) (= (_ +zero 11 53) .cse2))))) is different from false [2020-12-02 14:58:28,736 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet14_11| (_ BitVec 64)) (~CRM RoundingMode) (ULTIMATE.start_main_~main__y~0 (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet14_11|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet14_11|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet14_11|))) (.cse1 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__y~0) ((_ extract 62 52) ULTIMATE.start_main_~main__y~0) ((_ extract 51 0) ULTIMATE.start_main_~main__y~0))) (.cse3 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_6|))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~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) ~CRM 10.0) .cse0) (not (fp.geq .cse1 .cse2)) (= .cse2 (_ +zero 11 53)) (fp.geq .cse3 .cse4) (= .cse1 (fp.div ~CRM .cse3 .cse0)) (= (_ +zero 11 53) .cse4)))) is different from false [2020-12-02 14:58:30,820 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet14_11| (_ BitVec 64)) (~CRM RoundingMode) (ULTIMATE.start_main_~main__y~0 (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet14_11|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet14_11|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet14_11|))) (.cse1 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__y~0) ((_ extract 62 52) ULTIMATE.start_main_~main__y~0) ((_ extract 51 0) ULTIMATE.start_main_~main__y~0))) (.cse3 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_6|))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~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) ~CRM 10.0) .cse0) (not (fp.geq .cse1 .cse2)) (= .cse2 (_ +zero 11 53)) (fp.geq .cse3 .cse4) (= .cse1 (fp.div ~CRM .cse3 .cse0)) (= (_ +zero 11 53) .cse4)))) is different from true [2020-12-02 14:58:43,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:58:43,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 14:58:46,104 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet12_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet14_13| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__y~0_16 (_ BitVec 64)) (~CRM RoundingMode)) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet14_13|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet14_13|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet14_13|))) (.cse2 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__y~0_16) ((_ extract 62 52) v_ULTIMATE.start_main_~main__y~0_16) ((_ extract 51 0) v_ULTIMATE.start_main_~main__y~0_16))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_6|)))) (or (not (= ((_ to_fp 11 53) ~CRM 10.0) .cse0)) (not (= .cse1 (_ +zero 11 53))) (fp.geq .cse2 .cse1) (not (= .cse2 (fp.div ~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)))))) is different from true [2020-12-02 14:58:48,269 WARN L838 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_main_#t~nondet12_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet14_13| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__y~0_16 (_ BitVec 64)) (~CRM RoundingMode)) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet14_13|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet14_13|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet14_13|))) (.cse2 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__y~0_16) ((_ extract 62 52) v_ULTIMATE.start_main_~main__y~0_16) ((_ extract 51 0) v_ULTIMATE.start_main_~main__y~0_16))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_6|)))) (or (not (= ((_ to_fp 11 53) ~CRM 10.0) .cse0)) (not (= .cse1 (_ +zero 11 53))) (fp.geq .cse2 .cse1) (not (= .cse2 (fp.div ~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)))))) (forall ((|ULTIMATE.start_main_#t~nondet9| (_ BitVec 64))) (not (fp.leq (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)) (fp ((_ extract 63 63) |ULTIMATE.start_main_#t~nondet9|) ((_ extract 62 52) |ULTIMATE.start_main_#t~nondet9|) ((_ extract 51 0) |ULTIMATE.start_main_#t~nondet9|)))))) is different from false [2020-12-02 14:58:50,479 WARN L860 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_main_#t~nondet12_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet14_13| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__y~0_16 (_ BitVec 64)) (~CRM RoundingMode)) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet14_13|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet14_13|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet14_13|))) (.cse2 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__y~0_16) ((_ extract 62 52) v_ULTIMATE.start_main_~main__y~0_16) ((_ extract 51 0) v_ULTIMATE.start_main_~main__y~0_16))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_6|)))) (or (not (= ((_ to_fp 11 53) ~CRM 10.0) .cse0)) (not (= .cse1 (_ +zero 11 53))) (fp.geq .cse2 .cse1) (not (= .cse2 (fp.div ~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)))))) (forall ((|ULTIMATE.start_main_#t~nondet9| (_ BitVec 64))) (not (fp.leq (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)) (fp ((_ extract 63 63) |ULTIMATE.start_main_#t~nondet9|) ((_ extract 62 52) |ULTIMATE.start_main_#t~nondet9|) ((_ extract 51 0) |ULTIMATE.start_main_#t~nondet9|)))))) is different from true [2020-12-02 14:58:52,573 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet14_13| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__y~0_16 (_ BitVec 64)) (~CRM RoundingMode) (|ULTIMATE.start_main_#t~nondet9| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet14_13|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet14_13|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet14_13|))) (.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__y~0_16) ((_ extract 62 52) v_ULTIMATE.start_main_~main__y~0_16) ((_ extract 51 0) v_ULTIMATE.start_main_~main__y~0_16))) (.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~nondet12_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_6|)))) (or (not (= ((_ to_fp 11 53) ~CRM 10.0) .cse0)) (not (fp.geq .cse1 (fp ((_ extract 63 63) |c_ULTIMATE.start_main_#t~nondet8|) ((_ extract 62 52) |c_ULTIMATE.start_main_#t~nondet8|) ((_ extract 51 0) |c_ULTIMATE.start_main_#t~nondet8|)))) (not (= .cse2 (_ +zero 11 53))) (fp.geq .cse3 .cse2) (not (fp.leq .cse1 (fp ((_ extract 63 63) |ULTIMATE.start_main_#t~nondet9|) ((_ extract 62 52) |ULTIMATE.start_main_#t~nondet9|) ((_ extract 51 0) |ULTIMATE.start_main_#t~nondet9|)))) (not (= .cse3 (fp.div ~CRM .cse1 .cse0)))))) is different from false [2020-12-02 14:58:54,777 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet14_13| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__y~0_16 (_ BitVec 64)) (~CRM RoundingMode) (|ULTIMATE.start_main_#t~nondet9| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet14_13|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet14_13|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet14_13|))) (.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__y~0_16) ((_ extract 62 52) v_ULTIMATE.start_main_~main__y~0_16) ((_ extract 51 0) v_ULTIMATE.start_main_~main__y~0_16))) (.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~nondet12_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_6|)))) (or (not (= ((_ to_fp 11 53) ~CRM 10.0) .cse0)) (not (fp.geq .cse1 (fp ((_ extract 63 63) |c_ULTIMATE.start_main_#t~nondet8|) ((_ extract 62 52) |c_ULTIMATE.start_main_#t~nondet8|) ((_ extract 51 0) |c_ULTIMATE.start_main_#t~nondet8|)))) (not (= .cse2 (_ +zero 11 53))) (fp.geq .cse3 .cse2) (not (fp.leq .cse1 (fp ((_ extract 63 63) |ULTIMATE.start_main_#t~nondet9|) ((_ extract 62 52) |ULTIMATE.start_main_#t~nondet9|) ((_ extract 51 0) |ULTIMATE.start_main_#t~nondet9|)))) (not (= .cse3 (fp.div ~CRM .cse1 .cse0)))))) is different from true [2020-12-02 14:59:01,130 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet14_13| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__y~0_16 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_12| (_ BitVec 64)) (~CRM RoundingMode) (|ULTIMATE.start_main_#t~nondet9| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet14_13|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet14_13|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet14_13|))) (.cse2 (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__y~0_16) ((_ extract 62 52) v_ULTIMATE.start_main_~main__y~0_16) ((_ extract 51 0) v_ULTIMATE.start_main_~main__y~0_16))) (.cse4 (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~nondet12_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_6|)))) (or (not (= ((_ to_fp 11 53) ~CRM 10.0) .cse0)) (not (= .cse1 (_ +zero 11 53))) (not (= (_ +zero 11 53) .cse2)) (fp.geq .cse3 .cse1) (not (fp.geq .cse4 .cse2)) (not (fp.leq .cse4 (fp ((_ extract 63 63) |ULTIMATE.start_main_#t~nondet9|) ((_ extract 62 52) |ULTIMATE.start_main_#t~nondet9|) ((_ extract 51 0) |ULTIMATE.start_main_#t~nondet9|)))) (not (= .cse3 (fp.div ~CRM .cse4 .cse0)))))) is different from false [2020-12-02 14:59:03,359 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet14_13| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__y~0_16 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_12| (_ BitVec 64)) (~CRM RoundingMode) (|ULTIMATE.start_main_#t~nondet9| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet14_13|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet14_13|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet14_13|))) (.cse2 (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__y~0_16) ((_ extract 62 52) v_ULTIMATE.start_main_~main__y~0_16) ((_ extract 51 0) v_ULTIMATE.start_main_~main__y~0_16))) (.cse4 (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~nondet12_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_6|)))) (or (not (= ((_ to_fp 11 53) ~CRM 10.0) .cse0)) (not (= .cse1 (_ +zero 11 53))) (not (= (_ +zero 11 53) .cse2)) (fp.geq .cse3 .cse1) (not (fp.geq .cse4 .cse2)) (not (fp.leq .cse4 (fp ((_ extract 63 63) |ULTIMATE.start_main_#t~nondet9|) ((_ extract 62 52) |ULTIMATE.start_main_#t~nondet9|) ((_ extract 51 0) |ULTIMATE.start_main_#t~nondet9|)))) (not (= .cse3 (fp.div ~CRM .cse4 .cse0)))))) is different from true [2020-12-02 14:59:03,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:59:03,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1533550884] [2020-12-02 14:59:03,362 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 14:59:03,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [] total 13 [2020-12-02 14:59:03,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144189755] [2020-12-02 14:59:03,363 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-02 14:59:03,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 14:59:03,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-02 14:59:03,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=23, Unknown=12, NotChecked=98, Total=156 [2020-12-02 14:59:03,365 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 13 states. [2020-12-02 14:59:05,451 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ +zero 11 53) (fp ((_ extract 63 63) |c_ULTIMATE.start_main_#t~nondet8|) ((_ extract 62 52) |c_ULTIMATE.start_main_#t~nondet8|) ((_ extract 51 0) |c_ULTIMATE.start_main_#t~nondet8|))) (forall ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet14_13| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__y~0_16 (_ BitVec 64)) (~CRM RoundingMode) (|ULTIMATE.start_main_#t~nondet9| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet14_13|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet14_13|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet14_13|))) (.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__y~0_16) ((_ extract 62 52) v_ULTIMATE.start_main_~main__y~0_16) ((_ extract 51 0) v_ULTIMATE.start_main_~main__y~0_16))) (.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~nondet12_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_6|)))) (or (not (= ((_ to_fp 11 53) ~CRM 10.0) .cse0)) (not (fp.geq .cse1 (fp ((_ extract 63 63) |c_ULTIMATE.start_main_#t~nondet8|) ((_ extract 62 52) |c_ULTIMATE.start_main_#t~nondet8|) ((_ extract 51 0) |c_ULTIMATE.start_main_#t~nondet8|)))) (not (= .cse2 (_ +zero 11 53))) (fp.geq .cse3 .cse2) (not (fp.leq .cse1 (fp ((_ extract 63 63) |ULTIMATE.start_main_#t~nondet9|) ((_ extract 62 52) |ULTIMATE.start_main_#t~nondet9|) ((_ extract 51 0) |ULTIMATE.start_main_#t~nondet9|)))) (not (= .cse3 (fp.div ~CRM .cse1 .cse0))))))) is different from false [2020-12-02 14:59:23,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-02 14:59:23,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-02 14:59:23,718 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. No stderr output. 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.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:621) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:120) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:184) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:165) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:135) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:360) 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) ... 52 more [2020-12-02 14:59:23,728 INFO L168 Benchmark]: Toolchain (without parser) took 120142.73 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 29.3 MB in the beginning and 35.0 MB in the end (delta: -5.7 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. [2020-12-02 14:59:23,730 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 52.4 MB. Free memory is still 33.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:59:23,732 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.15 ms. Allocated memory is still 52.4 MB. Free memory was 29.1 MB in the beginning and 31.4 MB in the end (delta: -2.3 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-12-02 14:59:23,733 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.58 ms. Allocated memory is still 52.4 MB. Free memory was 31.4 MB in the beginning and 29.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 14:59:23,734 INFO L168 Benchmark]: Boogie Preprocessor took 30.80 ms. Allocated memory is still 52.4 MB. Free memory was 29.8 MB in the beginning and 28.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 14:59:23,735 INFO L168 Benchmark]: RCFGBuilder took 6814.57 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 28.4 MB in the beginning and 43.4 MB in the end (delta: -15.0 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2020-12-02 14:59:23,736 INFO L168 Benchmark]: TraceAbstraction took 112897.87 ms. Allocated memory is still 69.2 MB. Free memory was 42.9 MB in the beginning and 35.0 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-12-02 14:59:23,740 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 52.4 MB. Free memory is still 33.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 342.15 ms. Allocated memory is still 52.4 MB. Free memory was 29.1 MB in the beginning and 31.4 MB in the end (delta: -2.3 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.58 ms. Allocated memory is still 52.4 MB. Free memory was 31.4 MB in the beginning and 29.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.80 ms. Allocated memory is still 52.4 MB. Free memory was 29.8 MB in the beginning and 28.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 6814.57 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 28.4 MB in the beginning and 43.4 MB in the end (delta: -15.0 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 112897.87 ms. Allocated memory is still 69.2 MB. Free memory was 42.9 MB in the beginning and 35.0 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.5 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. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output.: 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...