./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/sqrt_poly2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ee8e70e7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/sqrt_poly2.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d97d268d682e2021ff98bdbb1deaf100696d038 .............................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/sqrt_poly2.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d97d268d682e2021ff98bdbb1deaf100696d038 .................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Incorrect DeclarationInformation of "#t~nondet7". Expected: Found: GLOBAL --- Real Ultimate output --- This is Ultimate 0.2.0-ee8e70e [2020-10-24 14:46:59,637 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:46:59,641 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:46:59,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:46:59,698 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:46:59,704 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:46:59,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:46:59,715 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:46:59,719 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:46:59,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:46:59,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:46:59,731 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:46:59,732 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:46:59,736 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:46:59,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:46:59,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:46:59,741 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:46:59,744 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:46:59,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:46:59,756 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:46:59,758 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:46:59,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:46:59,763 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:46:59,764 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:46:59,773 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:46:59,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:46:59,774 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:46:59,776 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:46:59,776 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:46:59,778 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:46:59,778 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:46:59,779 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:46:59,781 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:46:59,782 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:46:59,783 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:46:59,783 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:46:59,784 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:46:59,785 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:46:59,785 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:46:59,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:46:59,788 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:46:59,789 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 14:46:59,851 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:46:59,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:46:59,854 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:46:59,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:46:59,855 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:46:59,855 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:46:59,855 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:46:59,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 14:46:59,856 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:46:59,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:46:59,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:46:59,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:46:59,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:46:59,858 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:46:59,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:46:59,859 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:46:59,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:46:59,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:46:59,860 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:46:59,860 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:46:59,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:46:59,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:46:59,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:46:59,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:46:59,862 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:46:59,862 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 14:46:59,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 14:46:59,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:46:59,863 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:46:59,863 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d97d268d682e2021ff98bdbb1deaf100696d038 [2020-10-24 14:47:00,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:47:00,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:47:00,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:47:00,346 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:47:00,347 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:47:00,348 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/sqrt_poly2.c [2020-10-24 14:47:00,417 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a73214aed/802e709759b24a0493648faf45e9c6ff/FLAGa5d60cbb6 [2020-10-24 14:47:00,936 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:47:00,937 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/float-benchs/sqrt_poly2.c [2020-10-24 14:47:00,951 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a73214aed/802e709759b24a0493648faf45e9c6ff/FLAGa5d60cbb6 [2020-10-24 14:47:01,316 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a73214aed/802e709759b24a0493648faf45e9c6ff [2020-10-24 14:47:01,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:47:01,325 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:47:01,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:47:01,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:47:01,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:47:01,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:47:01" (1/1) ... [2020-10-24 14:47:01,348 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17714699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:01, skipping insertion in model container [2020-10-24 14:47:01,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:47:01" (1/1) ... [2020-10-24 14:47:01,367 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:47:01,407 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:47:01,599 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:47:01,609 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:47:01,638 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:47:01,658 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:47:01,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:01 WrapperNode [2020-10-24 14:47:01,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:47:01,661 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:47:01,661 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:47:01,661 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:47:01,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:01" (1/1) ... [2020-10-24 14:47:01,680 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:01" (1/1) ... [2020-10-24 14:47:01,705 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 14:47:01,707 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 14:47:01,707 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 14:47:01,707 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 14:47:01,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:01" (1/1) ... [2020-10-24 14:47:01,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:01" (1/1) ... [2020-10-24 14:47:01,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:01" (1/1) ... [2020-10-24 14:47:01,728 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:01" (1/1) ... [2020-10-24 14:47:01,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:01" (1/1) ... [2020-10-24 14:47:01,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:01" (1/1) ... [2020-10-24 14:47:01,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:01" (1/1) ... [2020-10-24 14:47:01,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 14:47:01,745 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 14:47:01,745 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 14:47:01,746 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 14:47:01,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:01" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:47:01,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 14:47:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 14:47:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 14:47:01,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 14:47:01,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 14:47:01,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 14:47:01,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 14:47:01,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 14:47:01,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 14:47:02,302 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 14:47:02,303 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-10-24 14:47:02,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:47:02 BoogieIcfgContainer [2020-10-24 14:47:02,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 14:47:02,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 14:47:02,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 14:47:02,313 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 14:47:02,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:47:01" (1/3) ... [2020-10-24 14:47:02,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39e4d8bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:47:02, skipping insertion in model container [2020-10-24 14:47:02,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:01" (2/3) ... [2020-10-24 14:47:02,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39e4d8bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:47:02, skipping insertion in model container [2020-10-24 14:47:02,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:47:02" (3/3) ... [2020-10-24 14:47:02,318 INFO L111 eAbstractionObserver]: Analyzing ICFG sqrt_poly2.c [2020-10-24 14:47:02,332 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 14:47:02,338 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 14:47:02,355 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 14:47:02,387 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 14:47:02,387 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 14:47:02,387 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 14:47:02,388 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 14:47:02,388 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 14:47:02,388 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 14:47:02,388 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 14:47:02,388 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 14:47:02,403 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-10-24 14:47:02,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-24 14:47:02,409 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:47:02,410 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:47:02,410 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:47:02,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:47:02,419 INFO L82 PathProgramCache]: Analyzing trace with hash -594069783, now seen corresponding path program 1 times [2020-10-24 14:47:02,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 14:47:02,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813347111] [2020-10-24 14:47:02,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 14:47:02,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:47:02,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:47:02,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813347111] [2020-10-24 14:47:02,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:47:02,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 14:47:02,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989711210] [2020-10-24 14:47:02,691 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 14:47:02,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 14:47:02,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 14:47:02,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 14:47:02,717 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2020-10-24 14:47:02,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:47:02,735 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2020-10-24 14:47:02,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 14:47:02,736 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-24 14:47:02,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:47:02,746 INFO L225 Difference]: With dead ends: 26 [2020-10-24 14:47:02,746 INFO L226 Difference]: Without dead ends: 10 [2020-10-24 14:47:02,749 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 [2020-10-24 14:47:02,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-10-24 14:47:02,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-10-24 14:47:02,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-24 14:47:02,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-10-24 14:47:02,785 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 9 [2020-10-24 14:47:02,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:47:02,785 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2020-10-24 14:47:02,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 14:47:02,786 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-10-24 14:47:02,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-24 14:47:02,786 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:47:02,787 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:47:02,787 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 14:47:02,787 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:47:02,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:47:02,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1180937579, now seen corresponding path program 1 times [2020-10-24 14:47:02,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 14:47:02,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390915561] [2020-10-24 14:47:02,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 14:47:02,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 14:47:02,851 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 14:47:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 14:47:02,893 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 14:47:02,955 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 14:47:02,956 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 14:47:02,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 14:47:03,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:47:03 BoogieIcfgContainer [2020-10-24 14:47:03,008 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 14:47:03,010 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 14:47:03,010 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 14:47:03,010 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 14:47:03,011 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:47:02" (3/4) ... [2020-10-24 14:47:03,015 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 14:47:03,015 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 14:47:03,021 INFO L168 Benchmark]: Toolchain (without parser) took 1696.40 ms. Allocated memory was 39.8 MB in the beginning and 60.8 MB in the end (delta: 21.0 MB). Free memory was 15.8 MB in the beginning and 39.7 MB in the end (delta: -23.9 MB). Peak memory consumption was 290.3 kB. Max. memory is 16.1 GB. [2020-10-24 14:47:03,023 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 39.8 MB. Free memory was 25.2 MB in the beginning and 25.1 MB in the end (delta: 24.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:47:03,025 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.53 ms. Allocated memory was 39.8 MB in the beginning and 50.3 MB in the end (delta: 10.5 MB). Free memory was 15.2 MB in the beginning and 24.3 MB in the end (delta: -9.1 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-10-24 14:47:03,026 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.86 ms. Allocated memory is still 50.3 MB. Free memory was 24.2 MB in the beginning and 22.5 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:47:03,027 INFO L168 Benchmark]: Boogie Preprocessor took 37.70 ms. Allocated memory is still 50.3 MB. Free memory was 22.5 MB in the beginning and 33.1 MB in the end (delta: -10.7 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. [2020-10-24 14:47:03,028 INFO L168 Benchmark]: RCFGBuilder took 560.27 ms. Allocated memory is still 50.3 MB. Free memory was 33.1 MB in the beginning and 29.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. [2020-10-24 14:47:03,029 INFO L168 Benchmark]: TraceAbstraction took 699.79 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 29.2 MB in the beginning and 40.0 MB in the end (delta: -10.8 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:47:03,032 INFO L168 Benchmark]: Witness Printer took 5.51 ms. Allocated memory is still 60.8 MB. Free memory was 40.0 MB in the beginning and 39.7 MB in the end (delta: 306.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:47:03,048 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 39.8 MB. Free memory was 25.2 MB in the beginning and 25.1 MB in the end (delta: 24.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 329.53 ms. Allocated memory was 39.8 MB in the beginning and 50.3 MB in the end (delta: 10.5 MB). Free memory was 15.2 MB in the beginning and 24.3 MB in the end (delta: -9.1 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.86 ms. Allocated memory is still 50.3 MB. Free memory was 24.2 MB in the beginning and 22.5 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.70 ms. Allocated memory is still 50.3 MB. Free memory was 22.5 MB in the beginning and 33.1 MB in the end (delta: -10.7 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. * RCFGBuilder took 560.27 ms. Allocated memory is still 50.3 MB. Free memory was 33.1 MB in the beginning and 29.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 699.79 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 29.2 MB in the beginning and 40.0 MB in the end (delta: -10.8 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. * Witness Printer took 5.51 ms. Allocated memory is still 60.8 MB. Free memory was 40.0 MB in the beginning and 39.7 MB in the end (delta: 306.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLE_SMToperation at line 20, overapproximation of bitwiseOr at line 38, overapproximation of bitwiseAnd at line 37, overapproximation of someBinaryArithmeticDOUBLE_SMToperation at line 51, overapproximation of someBinaryDOUBLE_SMTComparisonOperation at line 65. Possible FailurePath: [L17] double C0 = 1.414213538; [L18] double C1 = 0.229761391; [L19] double C2 = 1.296735525; [L20] double C3 = -0.901098370; [L21] double C4 = 0.493553400; [L22] double C5 = -0.118958666; VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L58] double x,y; [L60] x = __VERIFIER_nondet_double() [L12] COND FALSE !(!cond) VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L31] union u x; [L32] double r; [L33] int exp; [L35] x.d = a [L37] EXPR x.i[0] [L37] exp = (x.i[0] & 0x7FF00000) >> 20 [L38] EXPR x.i[0] [L38] x.i[0] = (x.i[0] & 0x800FFFFF) | 0x3FF00000 [L39] EXPR x.d [L39] r = x.d * 0.5 [L41] r = C1+C2+(C3+(C4+C5*r)*r)*r VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L43] COND TRUE exp % 2 == 0 [L44] exp++ VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L50] x.i[0] = (exp/2 + 511) << 20 [L51] EXPR x.d [L51] r = r * x.d [L53] return r; [L53] return r; VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L63] y = sqrt_custom(x) [L14] COND TRUE !(cond) VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L3] __assert_fail("0", "sqrt_poly2.c", 3, "reach_error") VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 14 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=15occurred 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, 18 NumberOfCodeBlocks, 18 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-ee8e70e [2020-10-24 14:47:05,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:47:05,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:47:05,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:47:05,609 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:47:05,615 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:47:05,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:47:05,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:47:05,632 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:47:05,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:47:05,636 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:47:05,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:47:05,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:47:05,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:47:05,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:47:05,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:47:05,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:47:05,651 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:47:05,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:47:05,662 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:47:05,665 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:47:05,666 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:47:05,671 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:47:05,673 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:47:05,679 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:47:05,679 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:47:05,679 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:47:05,682 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:47:05,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:47:05,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:47:05,684 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:47:05,685 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:47:05,686 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:47:05,687 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:47:05,689 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:47:05,689 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:47:05,690 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:47:05,690 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:47:05,690 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:47:05,692 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:47:05,693 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:47:05,694 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 14:47:05,748 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:47:05,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:47:05,753 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:47:05,753 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:47:05,753 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:47:05,754 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:47:05,754 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:47:05,754 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:47:05,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:47:05,755 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:47:05,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:47:05,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:47:05,757 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 14:47:05,757 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 14:47:05,757 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:47:05,757 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:47:05,758 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:47:05,758 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:47:05,758 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:47:05,758 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:47:05,759 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:47:05,759 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:47:05,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:47:05,759 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:47:05,760 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:47:05,760 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:47:05,760 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 14:47:05,760 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 14:47:05,761 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:47:05,761 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:47:05,761 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 14:47:05,761 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d97d268d682e2021ff98bdbb1deaf100696d038 [2020-10-24 14:47:06,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:47:06,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:47:06,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:47:06,216 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:47:06,217 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:47:06,218 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/sqrt_poly2.c [2020-10-24 14:47:06,300 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/85435cf05/f5bfbcee9954467c80e00cf10cb1beaa/FLAGfaeeac171 [2020-10-24 14:47:06,993 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:47:06,994 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/float-benchs/sqrt_poly2.c [2020-10-24 14:47:07,003 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/85435cf05/f5bfbcee9954467c80e00cf10cb1beaa/FLAGfaeeac171 [2020-10-24 14:47:07,017 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/85435cf05/f5bfbcee9954467c80e00cf10cb1beaa [2020-10-24 14:47:07,020 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:47:07,042 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:47:07,050 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:47:07,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:47:07,054 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:47:07,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:47:07" (1/1) ... [2020-10-24 14:47:07,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3557a99b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:07, skipping insertion in model container [2020-10-24 14:47:07,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:47:07" (1/1) ... [2020-10-24 14:47:07,094 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:47:07,115 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:47:07,329 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:47:07,346 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:47:07,406 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:47:07,444 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:47:07,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:07 WrapperNode [2020-10-24 14:47:07,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:47:07,447 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:47:07,448 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:47:07,450 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:47:07,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:07" (1/1) ... [2020-10-24 14:47:07,477 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet7 which is not a global variable [2020-10-24 14:47:07,478 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet8 which is not a global variable [2020-10-24 14:47:07,479 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet9 which is not a global variable [2020-10-24 14:47:07,479 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet10 which is not a global variable [2020-10-24 14:47:07,479 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet11 which is not a global variable [2020-10-24 14:47:07,480 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet12 which is not a global variable [2020-10-24 14:47:07,480 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet13 which is not a global variable [2020-10-24 14:47:07,480 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet14 which is not a global variable [2020-10-24 14:47:07,481 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet7 which is not a global variable [2020-10-24 14:47:07,481 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet8 which is not a global variable [2020-10-24 14:47:07,482 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet9 which is not a global variable [2020-10-24 14:47:07,482 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet10 which is not a global variable [2020-10-24 14:47:07,482 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet11 which is not a global variable [2020-10-24 14:47:07,483 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet12 which is not a global variable [2020-10-24 14:47:07,484 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet13 which is not a global variable [2020-10-24 14:47:07,484 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet14 which is not a global variable [2020-10-24 14:47:07,488 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner has thrown an exception: java.lang.AssertionError: Incorrect DeclarationInformation of "#t~nondet7". Expected: Found: GLOBAL at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.internalError(TypeCheckHelper.java:297) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.checkExistingDeclarationInformation(TypeChecker.java:340) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.typecheckLeftHandSide(TypeChecker.java:360) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.typecheckStatement(TypeChecker.java:781) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.typecheckBlock(TypeChecker.java:846) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.processBody(TypeChecker.java:957) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.processImplementation(TypeChecker.java:1033) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.process(TypeChecker.java:1120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:156) 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) [2020-10-24 14:47:07,497 INFO L168 Benchmark]: Toolchain (without parser) took 472.24 ms. Allocated memory was 44.0 MB in the beginning and 58.7 MB in the end (delta: 14.7 MB). Free memory was 19.5 MB in the beginning and 28.9 MB in the end (delta: -9.4 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2020-10-24 14:47:07,500 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 44.0 MB. Free memory was 29.4 MB in the beginning and 29.4 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:47:07,504 INFO L168 Benchmark]: CACSL2BoogieTranslator took 395.51 ms. Allocated memory is still 58.7 MB. Free memory was 42.4 MB in the beginning and 30.4 MB in the end (delta: 12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-24 14:47:07,507 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.44 ms. Allocated memory is still 58.7 MB. Free memory was 30.4 MB in the beginning and 28.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:47:07,512 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 44.0 MB. Free memory was 29.4 MB in the beginning and 29.4 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 395.51 ms. Allocated memory is still 58.7 MB. Free memory was 42.4 MB in the beginning and 30.4 MB in the end (delta: 12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.44 ms. Allocated memory is still 58.7 MB. Free memory was 30.4 MB in the beginning and 28.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - TypeErrorResult [Line: -1]: Type Error Modifies clause contains #t~nondet7 which is not a global variable - TypeErrorResult [Line: -1]: Type Error Modifies clause contains #t~nondet8 which is not a global variable - TypeErrorResult [Line: -1]: Type Error Modifies clause contains #t~nondet9 which is not a global variable - TypeErrorResult [Line: -1]: Type Error Modifies clause contains #t~nondet10 which is not a global variable - TypeErrorResult [Line: -1]: Type Error Modifies clause contains #t~nondet11 which is not a global variable - TypeErrorResult [Line: -1]: Type Error Modifies clause contains #t~nondet12 which is not a global variable - TypeErrorResult [Line: -1]: Type Error Modifies clause contains #t~nondet13 which is not a global variable - TypeErrorResult [Line: -1]: Type Error Modifies clause contains #t~nondet14 which is not a global variable - TypeErrorResult [Line: -1]: Type Error Modifies clause contains #t~nondet7 which is not a global variable - TypeErrorResult [Line: -1]: Type Error Modifies clause contains #t~nondet8 which is not a global variable - TypeErrorResult [Line: -1]: Type Error Modifies clause contains #t~nondet9 which is not a global variable - TypeErrorResult [Line: -1]: Type Error Modifies clause contains #t~nondet10 which is not a global variable - TypeErrorResult [Line: -1]: Type Error Modifies clause contains #t~nondet11 which is not a global variable - TypeErrorResult [Line: -1]: Type Error Modifies clause contains #t~nondet12 which is not a global variable - TypeErrorResult [Line: -1]: Type Error Modifies clause contains #t~nondet13 which is not a global variable - TypeErrorResult [Line: -1]: Type Error Modifies clause contains #t~nondet14 which is not a global variable * Results from de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: - ExceptionOrErrorResult: AssertionError: Incorrect DeclarationInformation of "#t~nondet7". Expected: Found: GLOBAL de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: AssertionError: Incorrect DeclarationInformation of "#t~nondet7". Expected: Found: GLOBAL: de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.internalError(TypeCheckHelper.java:297) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...