./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0740.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-newlib/float_req_bl_0740.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 25f88ce65e61cc7e7d9ef61e43238296440b1f18 ................................................................................................................................................................................................................................................................................................. 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-newlib/float_req_bl_0740.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 25f88ce65e61cc7e7d9ef61e43238296440b1f18 ................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.2.0-2880296 [2020-12-02 15:54:32,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 15:54:32,693 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 15:54:32,730 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 15:54:32,730 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 15:54:32,732 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 15:54:32,734 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 15:54:32,736 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 15:54:32,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 15:54:32,739 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 15:54:32,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 15:54:32,742 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 15:54:32,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 15:54:32,743 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 15:54:32,745 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 15:54:32,746 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 15:54:32,747 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 15:54:32,748 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 15:54:32,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 15:54:32,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 15:54:32,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 15:54:32,756 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 15:54:32,757 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 15:54:32,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 15:54:32,761 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 15:54:32,762 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 15:54:32,762 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 15:54:32,763 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 15:54:32,764 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 15:54:32,765 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 15:54:32,765 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 15:54:32,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 15:54:32,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 15:54:32,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 15:54:32,769 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 15:54:32,770 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 15:54:32,771 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 15:54:32,771 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 15:54:32,771 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 15:54:32,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 15:54:32,773 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 15:54:32,774 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 15:54:32,813 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 15:54:32,814 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 15:54:32,815 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 15:54:32,816 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 15:54:32,816 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 15:54:32,816 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 15:54:32,816 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 15:54:32,817 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 15:54:32,817 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 15:54:32,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 15:54:32,818 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 15:54:32,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 15:54:32,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 15:54:32,818 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 15:54:32,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 15:54:32,819 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 15:54:32,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 15:54:32,820 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 15:54:32,820 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 15:54:32,820 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 15:54:32,820 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 15:54:32,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:54:32,821 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 15:54:32,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 15:54:32,822 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 15:54:32,822 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 15:54:32,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 15:54:32,822 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 15:54:32,823 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 15:54:32,823 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25f88ce65e61cc7e7d9ef61e43238296440b1f18 [2020-12-02 15:54:33,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 15:54:33,233 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 15:54:33,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 15:54:33,239 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 15:54:33,241 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 15:54:33,242 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0740.c [2020-12-02 15:54:33,328 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/639e2deb4/0edf7c47789f4edea967ec1f270025b8/FLAG824be280b [2020-12-02 15:54:33,915 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 15:54:33,916 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0740.c [2020-12-02 15:54:33,926 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/639e2deb4/0edf7c47789f4edea967ec1f270025b8/FLAG824be280b [2020-12-02 15:54:34,239 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/639e2deb4/0edf7c47789f4edea967ec1f270025b8 [2020-12-02 15:54:34,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 15:54:34,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 15:54:34,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 15:54:34,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 15:54:34,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 15:54:34,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:54:34" (1/1) ... [2020-12-02 15:54:34,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@572150e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:34, skipping insertion in model container [2020-12-02 15:54:34,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:54:34" (1/1) ... [2020-12-02 15:54:34,286 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 15:54:34,336 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 15:54:34,510 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-newlib/float_req_bl_0740.c[1930,1943] [2020-12-02 15:54:34,514 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:54:34,524 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 15:54:34,563 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-newlib/float_req_bl_0740.c[1930,1943] [2020-12-02 15:54:34,564 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:54:34,589 INFO L217 MainTranslator]: Completed translation [2020-12-02 15:54:34,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:34 WrapperNode [2020-12-02 15:54:34,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 15:54:34,598 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 15:54:34,598 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 15:54:34,598 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 15:54:34,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:34" (1/1) ... [2020-12-02 15:54:34,617 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:34" (1/1) ... [2020-12-02 15:54:34,644 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 15:54:34,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 15:54:34,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 15:54:34,646 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 15:54:34,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:34" (1/1) ... [2020-12-02 15:54:34,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:34" (1/1) ... [2020-12-02 15:54:34,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:34" (1/1) ... [2020-12-02 15:54:34,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:34" (1/1) ... [2020-12-02 15:54:34,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:34" (1/1) ... [2020-12-02 15:54:34,675 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:34" (1/1) ... [2020-12-02 15:54:34,678 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:34" (1/1) ... [2020-12-02 15:54:34,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 15:54:34,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 15:54:34,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 15:54:34,682 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 15:54:34,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:34" (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 15:54:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 15:54:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 15:54:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-02 15:54:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-02 15:54:34,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-02 15:54:34,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 15:54:34,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 15:54:34,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-02 15:54:34,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 15:54:35,182 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 15:54:35,183 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-12-02 15:54:35,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:54:35 BoogieIcfgContainer [2020-12-02 15:54:35,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 15:54:35,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 15:54:35,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 15:54:35,191 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 15:54:35,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:54:34" (1/3) ... [2020-12-02 15:54:35,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2263578e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:54:35, skipping insertion in model container [2020-12-02 15:54:35,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:34" (2/3) ... [2020-12-02 15:54:35,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2263578e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:54:35, skipping insertion in model container [2020-12-02 15:54:35,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:54:35" (3/3) ... [2020-12-02 15:54:35,194 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0740.c [2020-12-02 15:54:35,214 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 15:54:35,217 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 15:54:35,232 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 15:54:35,277 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 15:54:35,277 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 15:54:35,277 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 15:54:35,277 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 15:54:35,277 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 15:54:35,278 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 15:54:35,278 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 15:54:35,280 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 15:54:35,320 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-12-02 15:54:35,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-02 15:54:35,342 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:54:35,344 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:54:35,344 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:54:35,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:54:35,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1903734416, now seen corresponding path program 1 times [2020-12-02 15:54:35,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 15:54:35,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344533280] [2020-12-02 15:54:35,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 15:54:35,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:54:35,625 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 15:54:35,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344533280] [2020-12-02 15:54:35,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:54:35,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 15:54:35,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170605203] [2020-12-02 15:54:35,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 15:54:35,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 15:54:35,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 15:54:35,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:54:35,658 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-12-02 15:54:35,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:54:35,697 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2020-12-02 15:54:35,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 15:54:35,702 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-02 15:54:35,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:54:35,715 INFO L225 Difference]: With dead ends: 64 [2020-12-02 15:54:35,715 INFO L226 Difference]: Without dead ends: 30 [2020-12-02 15:54:35,722 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:54:35,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-12-02 15:54:35,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-12-02 15:54:35,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-02 15:54:35,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2020-12-02 15:54:35,772 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2020-12-02 15:54:35,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:54:35,773 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-12-02 15:54:35,773 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 15:54:35,773 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2020-12-02 15:54:35,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-02 15:54:35,775 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:54:35,775 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:54:35,775 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 15:54:35,776 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:54:35,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:54:35,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1484616397, now seen corresponding path program 1 times [2020-12-02 15:54:35,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 15:54:35,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548241227] [2020-12-02 15:54:35,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 15:54:35,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 15:54:35,899 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 15:54:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 15:54:35,954 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 15:54:36,001 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-02 15:54:36,001 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-02 15:54:36,002 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-02 15:54:36,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:54:36 BoogieIcfgContainer [2020-12-02 15:54:36,044 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 15:54:36,045 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 15:54:36,045 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 15:54:36,045 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 15:54:36,045 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:54:35" (3/4) ... [2020-12-02 15:54:36,049 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-02 15:54:36,049 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 15:54:36,052 INFO L168 Benchmark]: Toolchain (without parser) took 1806.69 ms. Allocated memory was 39.8 MB in the beginning and 48.2 MB in the end (delta: 8.4 MB). Free memory was 17.0 MB in the beginning and 25.0 MB in the end (delta: -8.0 MB). Peak memory consumption was 99.2 kB. Max. memory is 16.1 GB. [2020-12-02 15:54:36,053 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 39.8 MB. Free memory was 24.4 MB in the beginning and 24.3 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:54:36,054 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.65 ms. Allocated memory is still 39.8 MB. Free memory was 16.8 MB in the beginning and 14.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-12-02 15:54:36,054 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.86 ms. Allocated memory is still 48.2 MB. Free memory was 33.0 MB in the beginning and 31.3 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:54:36,055 INFO L168 Benchmark]: Boogie Preprocessor took 35.72 ms. Allocated memory is still 48.2 MB. Free memory was 31.3 MB in the beginning and 29.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 15:54:36,056 INFO L168 Benchmark]: RCFGBuilder took 502.90 ms. Allocated memory is still 48.2 MB. Free memory was 29.8 MB in the beginning and 21.8 MB in the end (delta: 8.0 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2020-12-02 15:54:36,057 INFO L168 Benchmark]: TraceAbstraction took 857.07 ms. Allocated memory is still 48.2 MB. Free memory was 21.3 MB in the beginning and 25.4 MB in the end (delta: -4.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:54:36,058 INFO L168 Benchmark]: Witness Printer took 4.84 ms. Allocated memory is still 48.2 MB. Free memory was 25.2 MB in the beginning and 25.0 MB in the end (delta: 227.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:54:36,062 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 39.8 MB. Free memory was 24.4 MB in the beginning and 24.3 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 343.65 ms. Allocated memory is still 39.8 MB. Free memory was 16.8 MB in the beginning and 14.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.86 ms. Allocated memory is still 48.2 MB. Free memory was 33.0 MB in the beginning and 31.3 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.72 ms. Allocated memory is still 48.2 MB. Free memory was 31.3 MB in the beginning and 29.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 502.90 ms. Allocated memory is still 48.2 MB. Free memory was 29.8 MB in the beginning and 21.8 MB in the end (delta: 8.0 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 857.07 ms. Allocated memory is still 48.2 MB. Free memory was 21.3 MB in the beginning and 25.4 MB in the end (delta: -4.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.84 ms. Allocated memory is still 48.2 MB. Free memory was 25.2 MB in the beginning and 25.0 MB in the end (delta: 227.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 99]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticFLOAT_SMToperation at line 32, overapproximation of bitwiseAnd at line 29, overapproximation of someBinaryFLOAT_SMTComparisonOperation at line 15. Possible FailurePath: [L17] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L93] float x = -1.0f / 0.0f; [L20] float z; [L21] __uint32_t r, hx; [L22] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L25] ieee_float_shape_type gf_u; [L26] gf_u.value = (x) [L27] EXPR gf_u.word [L27] (ix) = gf_u.word [L29] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L31] COND TRUE !((hx) < 0x7f800000L) [L32] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L95] float res = __ieee754_sqrtf(x); [L15] return x != x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L98] COND TRUE !isnan_float(res) [L99] reach_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 43 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 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 15:54:38,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 15:54:38,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 15:54:38,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 15:54:38,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 15:54:38,583 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 15:54:38,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 15:54:38,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 15:54:38,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 15:54:38,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 15:54:38,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 15:54:38,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 15:54:38,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 15:54:38,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 15:54:38,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 15:54:38,596 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 15:54:38,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 15:54:38,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 15:54:38,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 15:54:38,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 15:54:38,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 15:54:38,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 15:54:38,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 15:54:38,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 15:54:38,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 15:54:38,613 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 15:54:38,613 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 15:54:38,614 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 15:54:38,615 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 15:54:38,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 15:54:38,620 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 15:54:38,621 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 15:54:38,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 15:54:38,625 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 15:54:38,626 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 15:54:38,629 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 15:54:38,630 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 15:54:38,630 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 15:54:38,630 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 15:54:38,631 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 15:54:38,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 15:54:38,634 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 15:54:38,686 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 15:54:38,687 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 15:54:38,689 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 15:54:38,690 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 15:54:38,690 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 15:54:38,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 15:54:38,691 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 15:54:38,691 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 15:54:38,691 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 15:54:38,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 15:54:38,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 15:54:38,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 15:54:38,693 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 15:54:38,693 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 15:54:38,694 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 15:54:38,694 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 15:54:38,694 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 15:54:38,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 15:54:38,695 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 15:54:38,695 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 15:54:38,696 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 15:54:38,696 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 15:54:38,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:54:38,696 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 15:54:38,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 15:54:38,697 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 15:54:38,697 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 15:54:38,697 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-02 15:54:38,698 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 15:54:38,698 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 15:54:38,698 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 15:54:38,699 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25f88ce65e61cc7e7d9ef61e43238296440b1f18 [2020-12-02 15:54:39,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 15:54:39,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 15:54:39,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 15:54:39,207 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 15:54:39,208 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 15:54:39,209 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0740.c [2020-12-02 15:54:39,305 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fad9cbc3/f7d76fd7f80944888e51b1b9f3dce86b/FLAGb565fba24 [2020-12-02 15:54:39,832 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 15:54:39,833 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0740.c [2020-12-02 15:54:39,841 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fad9cbc3/f7d76fd7f80944888e51b1b9f3dce86b/FLAGb565fba24 [2020-12-02 15:54:40,203 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fad9cbc3/f7d76fd7f80944888e51b1b9f3dce86b [2020-12-02 15:54:40,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 15:54:40,211 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 15:54:40,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 15:54:40,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 15:54:40,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 15:54:40,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:54:40" (1/1) ... [2020-12-02 15:54:40,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b27b552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:40, skipping insertion in model container [2020-12-02 15:54:40,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:54:40" (1/1) ... [2020-12-02 15:54:40,233 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 15:54:40,263 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 15:54:40,457 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-newlib/float_req_bl_0740.c[1930,1943] [2020-12-02 15:54:40,461 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:54:40,501 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 15:54:40,562 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-newlib/float_req_bl_0740.c[1930,1943] [2020-12-02 15:54:40,563 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:54:40,591 INFO L217 MainTranslator]: Completed translation [2020-12-02 15:54:40,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:40 WrapperNode [2020-12-02 15:54:40,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 15:54:40,593 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 15:54:40,593 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 15:54:40,593 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 15:54:40,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:40" (1/1) ... [2020-12-02 15:54:40,616 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:40" (1/1) ... [2020-12-02 15:54:40,646 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 15:54:40,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 15:54:40,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 15:54:40,647 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 15:54:40,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:40" (1/1) ... [2020-12-02 15:54:40,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:40" (1/1) ... [2020-12-02 15:54:40,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:40" (1/1) ... [2020-12-02 15:54:40,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:40" (1/1) ... [2020-12-02 15:54:40,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:40" (1/1) ... [2020-12-02 15:54:40,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:40" (1/1) ... [2020-12-02 15:54:40,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:40" (1/1) ... [2020-12-02 15:54:40,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 15:54:40,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 15:54:40,700 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 15:54:40,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 15:54:40,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:40" (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 15:54:40,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-12-02 15:54:40,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-02 15:54:40,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 15:54:40,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-12-02 15:54:40,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-02 15:54:40,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 15:54:40,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 15:54:40,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-02 15:54:40,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_FLOAT [2020-12-02 15:54:40,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-02 15:54:40,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 15:54:42,247 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 15:54:42,247 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-12-02 15:54:42,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:54:42 BoogieIcfgContainer [2020-12-02 15:54:42,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 15:54:42,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 15:54:42,251 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 15:54:42,255 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 15:54:42,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:54:40" (1/3) ... [2020-12-02 15:54:42,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aed96f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:54:42, skipping insertion in model container [2020-12-02 15:54:42,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:40" (2/3) ... [2020-12-02 15:54:42,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aed96f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:54:42, skipping insertion in model container [2020-12-02 15:54:42,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:54:42" (3/3) ... [2020-12-02 15:54:42,259 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0740.c [2020-12-02 15:54:42,286 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 15:54:42,289 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 15:54:42,302 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 15:54:42,329 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 15:54:42,329 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 15:54:42,329 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 15:54:42,330 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 15:54:42,330 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 15:54:42,330 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 15:54:42,330 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 15:54:42,330 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 15:54:42,345 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-12-02 15:54:42,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-02 15:54:42,350 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:54:42,351 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:54:42,351 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:54:42,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:54:42,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1903734416, now seen corresponding path program 1 times [2020-12-02 15:54:42,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:54:42,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2125674020] [2020-12-02 15:54:42,373 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 15:54:42,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:54:42,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-02 15:54:42,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:54:42,950 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 15:54:42,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:54:42,969 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 15:54:42,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2125674020] [2020-12-02 15:54:42,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:54:42,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-02 15:54:42,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113432402] [2020-12-02 15:54:42,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 15:54:42,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:54:42,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 15:54:42,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:54:43,015 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-12-02 15:54:43,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:54:43,068 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2020-12-02 15:54:43,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 15:54:43,070 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-02 15:54:43,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:54:43,092 INFO L225 Difference]: With dead ends: 64 [2020-12-02 15:54:43,093 INFO L226 Difference]: Without dead ends: 30 [2020-12-02 15:54:43,098 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:54:43,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-12-02 15:54:43,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-12-02 15:54:43,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-02 15:54:43,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2020-12-02 15:54:43,142 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2020-12-02 15:54:43,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:54:43,142 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-12-02 15:54:43,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 15:54:43,143 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2020-12-02 15:54:43,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-02 15:54:43,144 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:54:43,144 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:54:43,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-02 15:54:43,350 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:54:43,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:54:43,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1484616397, now seen corresponding path program 1 times [2020-12-02 15:54:43,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:54:43,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1558060458] [2020-12-02 15:54:43,353 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 15:54:43,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:54:43,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-02 15:54:43,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:54:44,774 WARN L197 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-12-02 15:54:46,753 WARN L197 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-12-02 15:54:46,799 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 15:54:46,809 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-02 15:54:48,463 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 15:54:48,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:54:52,861 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start___ieee754_sqrtf_#t~nondet11_6| (_ BitVec 32)) (|v_ULTIMATE.start___ieee754_sqrtf_#res_8| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_sqrtf_#res_8|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_sqrtf_#res_8|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_sqrtf_#res_8|))) (.cse1 (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_sqrtf_#t~nondet11_6|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_sqrtf_#t~nondet11_6|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_sqrtf_#t~nondet11_6|))) (.cse2 (fp ((_ extract 31 31) c_ULTIMATE.start___ieee754_sqrtf_~x) ((_ extract 30 23) c_ULTIMATE.start___ieee754_sqrtf_~x) ((_ extract 22 0) c_ULTIMATE.start___ieee754_sqrtf_~x)))) (or (not (= .cse0 (fp.add c_~CRM .cse1 .cse2))) (not (fp.eq .cse0 .cse0)) (not (= .cse1 (fp.mul c_~CRM .cse2 .cse2)))))) is different from false [2020-12-02 15:54:53,627 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 15:54:53,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1558060458] [2020-12-02 15:54:53,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:54:53,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2020-12-02 15:54:53,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679003179] [2020-12-02 15:54:53,630 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-02 15:54:53,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:54:53,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-02 15:54:53,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=69, Unknown=1, NotChecked=16, Total=110 [2020-12-02 15:54:53,633 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 11 states. [2020-12-02 15:54:56,086 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet22_6| (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet21_6| (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet23_6| (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) |v_ULTIMATE.start_main_#t~nondet22_6|) ((_ extract 30 23) |v_ULTIMATE.start_main_#t~nondet22_6|) ((_ extract 22 0) |v_ULTIMATE.start_main_#t~nondet22_6|))) (.cse0 (fp ((_ extract 31 31) |v_ULTIMATE.start_main_#t~nondet23_6|) ((_ extract 30 23) |v_ULTIMATE.start_main_#t~nondet23_6|) ((_ extract 22 0) |v_ULTIMATE.start_main_#t~nondet23_6|))) (.cse2 (fp ((_ extract 31 31) |v_ULTIMATE.start_main_#t~nondet21_6|) ((_ extract 30 23) |v_ULTIMATE.start_main_#t~nondet21_6|) ((_ extract 22 0) |v_ULTIMATE.start_main_#t~nondet21_6|)))) (and (= (_ +zero 8 24) .cse0) (= .cse1 (fp.neg .cse2)) (= (fp ((_ extract 31 31) c_ULTIMATE.start___ieee754_sqrtf_~x) ((_ extract 30 23) c_ULTIMATE.start___ieee754_sqrtf_~x) ((_ extract 22 0) c_ULTIMATE.start___ieee754_sqrtf_~x)) (fp.div c_~CRM .cse1 .cse0)) (= ((_ to_fp 8 24) c_~CRM 1.0) .cse2)))) (= roundNearestTiesToEven c_~CRM) (forall ((|v_ULTIMATE.start___ieee754_sqrtf_#t~nondet11_6| (_ BitVec 32)) (|v_ULTIMATE.start___ieee754_sqrtf_#res_8| (_ BitVec 32))) (let ((.cse3 (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_sqrtf_#res_8|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_sqrtf_#res_8|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_sqrtf_#res_8|))) (.cse4 (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_sqrtf_#t~nondet11_6|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_sqrtf_#t~nondet11_6|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_sqrtf_#t~nondet11_6|))) (.cse5 (fp ((_ extract 31 31) c_ULTIMATE.start___ieee754_sqrtf_~x) ((_ extract 30 23) c_ULTIMATE.start___ieee754_sqrtf_~x) ((_ extract 22 0) c_ULTIMATE.start___ieee754_sqrtf_~x)))) (or (not (= .cse3 (fp.add c_~CRM .cse4 .cse5))) (not (fp.eq .cse3 .cse3)) (not (= .cse4 (fp.mul c_~CRM .cse5 .cse5))))))) is different from false [2020-12-02 15:55:01,844 WARN L197 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 11 [2020-12-02 15:55:04,744 WARN L197 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 54 DAG size of output: 13 [2020-12-02 15:55:08,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:55:08,303 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2020-12-02 15:55:08,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-02 15:55:08,304 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 10 [2020-12-02 15:55:08,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:55:08,305 INFO L225 Difference]: With dead ends: 35 [2020-12-02 15:55:08,305 INFO L226 Difference]: Without dead ends: 30 [2020-12-02 15:55:08,306 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 20.4s TimeCoverageRelationStatistics Valid=41, Invalid=97, Unknown=2, NotChecked=42, Total=182 [2020-12-02 15:55:08,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-12-02 15:55:08,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-12-02 15:55:08,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-02 15:55:08,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2020-12-02 15:55:08,315 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 10 [2020-12-02 15:55:08,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:55:08,316 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2020-12-02 15:55:08,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-02 15:55:08,317 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2020-12-02 15:55:08,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-02 15:55:08,317 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:55:08,318 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:55:08,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-02 15:55:08,533 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:55:08,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:55:08,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1245605874, now seen corresponding path program 1 times [2020-12-02 15:55:08,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:55:08,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1279349644] [2020-12-02 15:55:08,536 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 15:55:08,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:55:08,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-02 15:55:08,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:55:09,797 WARN L197 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-12-02 15:55:15,203 WARN L197 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-12-02 15:55:23,251 WARN L197 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-12-02 15:55:23,276 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 15:55:23,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:55:27,030 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 15:55:27,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1279349644] [2020-12-02 15:55:27,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:55:27,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-12-02 15:55:27,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341748812] [2020-12-02 15:55:27,032 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-02 15:55:27,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:55:27,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-02 15:55:27,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=49, Unknown=5, NotChecked=0, Total=72 [2020-12-02 15:55:27,033 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand 9 states. [2020-12-02 15:55:34,023 WARN L197 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 35 [2020-12-02 15:55:42,777 WARN L197 SmtUtils]: Spent 6.74 s on a formula simplification that was a NOOP. DAG size: 43 [2020-12-02 15:55:55,898 WARN L197 SmtUtils]: Spent 11.67 s on a formula simplification that was a NOOP. DAG size: 49 [2020-12-02 15:55:55,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:55:55,902 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2020-12-02 15:55:55,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-02 15:55:55,902 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 11 [2020-12-02 15:55:55,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:55:55,903 INFO L225 Difference]: With dead ends: 30 [2020-12-02 15:55:55,903 INFO L226 Difference]: Without dead ends: 0 [2020-12-02 15:55:55,904 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 44.0s TimeCoverageRelationStatistics Valid=42, Invalid=85, Unknown=5, NotChecked=0, Total=132 [2020-12-02 15:55:55,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-02 15:55:55,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-02 15:55:55,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-02 15:55:55,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-02 15:55:55,905 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-12-02 15:55:55,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:55:55,905 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-02 15:55:55,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-02 15:55:55,906 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-02 15:55:55,906 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-02 15:55:56,108 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-02 15:55:56,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-02 15:55:56,258 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-12-02 16:01:42,785 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-12-02 16:01:42,786 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:222) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:131) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.push(UndoableWrapperScript.java:53) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.pushContext(SimplifyDDA.java:737) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walkParam(SimplifyDDA.java:526) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:412) 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:180) 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.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter(HoareAnnotationComposer.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.(HoareAnnotationComposer.java:105) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeCFGHoareAnnotation(BasicCegarLoop.java:1052) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:176) 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) ... 35 more [2020-12-02 16:01:42,793 INFO L168 Benchmark]: Toolchain (without parser) took 422583.24 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 24.1 MB in the beginning and 26.3 MB in the end (delta: -2.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2020-12-02 16:01:42,795 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 39.8 MB. Free memory was 17.5 MB in the beginning and 17.4 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 16:01:42,796 INFO L168 Benchmark]: CACSL2BoogieTranslator took 378.66 ms. Allocated memory is still 48.2 MB. Free memory was 23.9 MB in the beginning and 22.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-12-02 16:01:42,796 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.24 ms. Allocated memory is still 48.2 MB. Free memory was 22.6 MB in the beginning and 20.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 16:01:42,797 INFO L168 Benchmark]: Boogie Preprocessor took 52.04 ms. Allocated memory is still 48.2 MB. Free memory was 20.6 MB in the beginning and 30.3 MB in the end (delta: -9.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 16.1 GB. [2020-12-02 16:01:42,799 INFO L168 Benchmark]: RCFGBuilder took 1549.83 ms. Allocated memory is still 48.2 MB. Free memory was 30.3 MB in the beginning and 19.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2020-12-02 16:01:42,800 INFO L168 Benchmark]: TraceAbstraction took 420540.77 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 19.2 MB in the beginning and 26.3 MB in the end (delta: -7.1 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-12-02 16:01:42,807 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 39.8 MB. Free memory was 17.5 MB in the beginning and 17.4 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 378.66 ms. Allocated memory is still 48.2 MB. Free memory was 23.9 MB in the beginning and 22.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.24 ms. Allocated memory is still 48.2 MB. Free memory was 22.6 MB in the beginning and 20.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.04 ms. Allocated memory is still 48.2 MB. Free memory was 20.6 MB in the beginning and 30.3 MB in the end (delta: -9.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1549.83 ms. Allocated memory is still 48.2 MB. Free memory was 30.3 MB in the beginning and 19.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 420540.77 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 19.2 MB in the beginning and 26.3 MB in the end (delta: -7.1 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...