./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e2901276-9db8-4669-ab93-7c45cf438543/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e2901276-9db8-4669-ab93-7c45cf438543/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e2901276-9db8-4669-ab93-7c45cf438543/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e2901276-9db8-4669-ab93-7c45cf438543/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e2901276-9db8-4669-ab93-7c45cf438543/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e2901276-9db8-4669-ab93-7c45cf438543/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e0f1bd2a42710b6c2eba96cb622bd79ffd05436a ............................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e2901276-9db8-4669-ab93-7c45cf438543/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e2901276-9db8-4669-ab93-7c45cf438543/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e2901276-9db8-4669-ab93-7c45cf438543/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e2901276-9db8-4669-ab93-7c45cf438543/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e2901276-9db8-4669-ab93-7c45cf438543/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e2901276-9db8-4669-ab93-7c45cf438543/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e0f1bd2a42710b6c2eba96cb622bd79ffd05436a .................................................................................................................................................................................................................................................................................................. 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 0.1.23-5842f4b [2018-11-18 16:11:30,732 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:11:30,733 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:11:30,740 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:11:30,741 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:11:30,741 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:11:30,742 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:11:30,743 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:11:30,744 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:11:30,744 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:11:30,745 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:11:30,745 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:11:30,746 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:11:30,746 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:11:30,747 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:11:30,748 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:11:30,748 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:11:30,749 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:11:30,751 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:11:30,752 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:11:30,752 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:11:30,753 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:11:30,755 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:11:30,755 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:11:30,755 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:11:30,756 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:11:30,757 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:11:30,757 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:11:30,758 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:11:30,758 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:11:30,759 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:11:30,759 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:11:30,759 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:11:30,759 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:11:30,760 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:11:30,760 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:11:30,760 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e2901276-9db8-4669-ab93-7c45cf438543/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-18 16:11:30,770 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:11:30,771 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:11:30,771 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:11:30,771 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 16:11:30,772 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 16:11:30,772 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 16:11:30,772 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 16:11:30,772 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:11:30,772 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:11:30,773 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:11:30,773 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:11:30,773 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:11:30,773 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:11:30,773 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:11:30,773 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:11:30,773 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:11:30,773 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:11:30,773 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:11:30,774 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:11:30,774 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:11:30,774 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:11:30,774 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:11:30,774 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:11:30,774 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:11:30,774 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:11:30,774 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:11:30,774 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:11:30,775 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 16:11:30,775 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:11:30,775 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 16:11:30,775 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_e2901276-9db8-4669-ab93-7c45cf438543/bin-2019/uautomizer 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(__VERIFIER_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 -> e0f1bd2a42710b6c2eba96cb622bd79ffd05436a [2018-11-18 16:11:30,796 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:11:30,804 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:11:30,805 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:11:30,806 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:11:30,806 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:11:30,807 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e2901276-9db8-4669-ab93-7c45cf438543/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-11-18 16:11:30,842 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e2901276-9db8-4669-ab93-7c45cf438543/bin-2019/uautomizer/data/b2c10e2ae/40430ef0203e404e80ac16fb04040182/FLAGfb8d8ea99 [2018-11-18 16:11:31,146 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:11:31,146 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e2901276-9db8-4669-ab93-7c45cf438543/sv-benchmarks/c/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-11-18 16:11:31,151 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e2901276-9db8-4669-ab93-7c45cf438543/bin-2019/uautomizer/data/b2c10e2ae/40430ef0203e404e80ac16fb04040182/FLAGfb8d8ea99 [2018-11-18 16:11:31,160 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e2901276-9db8-4669-ab93-7c45cf438543/bin-2019/uautomizer/data/b2c10e2ae/40430ef0203e404e80ac16fb04040182 [2018-11-18 16:11:31,162 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:11:31,163 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 16:11:31,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:11:31,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:11:31,166 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:11:31,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:11:31" (1/1) ... [2018-11-18 16:11:31,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64e3deec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:11:31, skipping insertion in model container [2018-11-18 16:11:31,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:11:31" (1/1) ... [2018-11-18 16:11:31,174 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:11:31,188 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:11:31,300 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:11:31,302 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:11:31,314 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:11:31,327 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:11:31,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:11:31 WrapperNode [2018-11-18 16:11:31,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:11:31,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:11:31,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:11:31,328 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:11:31,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:11:31" (1/1) ... [2018-11-18 16:11:31,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:11:31" (1/1) ... [2018-11-18 16:11:31,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:11:31" (1/1) ... [2018-11-18 16:11:31,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:11:31" (1/1) ... [2018-11-18 16:11:31,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:11:31" (1/1) ... [2018-11-18 16:11:31,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:11:31" (1/1) ... [2018-11-18 16:11:31,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:11:31" (1/1) ... [2018-11-18 16:11:31,353 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:11:31,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:11:31,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:11:31,353 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:11:31,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:11:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e2901276-9db8-4669-ab93-7c45cf438543/bin-2019/uautomizer/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 [2018-11-18 16:11:31,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:11:31,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:11:31,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 16:11:31,430 INFO L138 BoogieDeclarations]: Found implementation of procedure InvSqrt [2018-11-18 16:11:31,430 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:11:31,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 16:11:31,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-18 16:11:31,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-18 16:11:31,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 16:11:31,430 INFO L130 BoogieDeclarations]: Found specification of procedure InvSqrt [2018-11-18 16:11:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:11:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 16:11:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 16:11:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 16:11:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 16:11:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 16:11:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:11:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:11:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:11:31,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 16:11:31,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-18 16:11:31,550 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:11:31,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:11:31 BoogieIcfgContainer [2018-11-18 16:11:31,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:11:31,551 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:11:31,551 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:11:31,554 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:11:31,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:11:31" (1/3) ... [2018-11-18 16:11:31,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507859ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:11:31, skipping insertion in model container [2018-11-18 16:11:31,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:11:31" (2/3) ... [2018-11-18 16:11:31,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507859ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:11:31, skipping insertion in model container [2018-11-18 16:11:31,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:11:31" (3/3) ... [2018-11-18 16:11:31,556 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-11-18 16:11:31,562 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:11:31,566 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 16:11:31,576 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 16:11:31,597 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:11:31,598 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:11:31,598 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:11:31,598 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:11:31,598 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:11:31,598 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:11:31,598 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:11:31,598 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:11:31,598 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:11:31,609 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-18 16:11:31,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 16:11:31,613 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:11:31,613 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:11:31,615 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:11:31,618 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:11:31,618 INFO L82 PathProgramCache]: Analyzing trace with hash 77812212, now seen corresponding path program 1 times [2018-11-18 16:11:31,619 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:11:31,620 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:11:31,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:11:31,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:11:31,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:11:31,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:11:31,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:11:31,711 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 16:11:31,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:11:31 BoogieIcfgContainer [2018-11-18 16:11:31,726 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 16:11:31,726 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:11:31,726 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:11:31,727 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:11:31,727 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:11:31" (3/4) ... [2018-11-18 16:11:31,729 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 16:11:31,729 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:11:31,730 INFO L168 Benchmark]: Toolchain (without parser) took 566.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -150.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:11:31,731 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:11:31,731 INFO L168 Benchmark]: CACSL2BoogieTranslator took 163.76 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:11:31,732 INFO L168 Benchmark]: Boogie Preprocessor took 25.00 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:11:31,732 INFO L168 Benchmark]: RCFGBuilder took 197.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -184.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:11:31,733 INFO L168 Benchmark]: TraceAbstraction took 174.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:11:31,733 INFO L168 Benchmark]: Witness Printer took 2.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:11:31,736 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 163.76 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.00 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 197.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -184.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 174.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 43, overapproximation of someBinaryArithmeticFLOAToperation at line 17. Possible FailurePath: [L40] float a,r; [L42] a = __VERIFIER_nondet_float() [L45] CALL, EXPR InvSqrt(a) VAL [\old(x)=8] [L17] float xhalf = 0.5f*x; [L18] FCALL union float_int i; [L19] FCALL i.f = x [L20] EXPR, FCALL i.i [L20] FCALL i.i = 0x5f3759df - (i.i>>1) [L21] EXPR, FCALL i.f [L21] x = i.f [L22] x = x*(1.5f-xhalf*x*x) [L23] return x; [L23] RET return x; VAL [\old(x)=8, \result=9, x=9] [L45] EXPR InvSqrt(a) VAL [a=8, InvSqrt(a)=9] [L45] r = InvSqrt(a) [L47] CALL __VERIFIER_assert(r >= 0.f && r <= 10.) VAL [\old(cond)=0] [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.23-5842f4b [2018-11-18 16:11:33,141 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:11:33,143 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:11:33,151 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:11:33,151 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:11:33,152 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:11:33,153 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:11:33,154 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:11:33,155 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:11:33,156 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:11:33,156 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:11:33,156 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:11:33,157 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:11:33,158 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:11:33,158 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:11:33,159 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:11:33,159 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:11:33,160 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:11:33,162 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:11:33,163 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:11:33,163 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:11:33,164 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:11:33,166 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:11:33,166 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:11:33,166 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:11:33,167 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:11:33,168 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:11:33,168 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:11:33,169 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:11:33,170 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:11:33,170 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:11:33,170 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:11:33,170 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:11:33,171 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:11:33,171 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:11:33,172 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:11:33,172 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e2901276-9db8-4669-ab93-7c45cf438543/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 16:11:33,182 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:11:33,182 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:11:33,183 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:11:33,183 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 16:11:33,183 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 16:11:33,183 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 16:11:33,184 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 16:11:33,184 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:11:33,184 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:11:33,184 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:11:33,184 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:11:33,184 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:11:33,184 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:11:33,184 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:11:33,185 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 16:11:33,185 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 16:11:33,185 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:11:33,185 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:11:33,185 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:11:33,185 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:11:33,185 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:11:33,185 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:11:33,186 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:11:33,186 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:11:33,186 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:11:33,186 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:11:33,186 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:11:33,186 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:11:33,186 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 16:11:33,186 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:11:33,187 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 16:11:33,187 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 16:11:33,187 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_e2901276-9db8-4669-ab93-7c45cf438543/bin-2019/uautomizer 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(__VERIFIER_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 -> e0f1bd2a42710b6c2eba96cb622bd79ffd05436a [2018-11-18 16:11:33,218 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:11:33,228 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:11:33,231 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:11:33,232 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:11:33,232 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:11:33,233 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e2901276-9db8-4669-ab93-7c45cf438543/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-11-18 16:11:33,269 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e2901276-9db8-4669-ab93-7c45cf438543/bin-2019/uautomizer/data/a521bc9b5/bff7f019d9444f6c878931577b0ab3aa/FLAG30e372201 [2018-11-18 16:11:33,567 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:11:33,568 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e2901276-9db8-4669-ab93-7c45cf438543/sv-benchmarks/c/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-11-18 16:11:33,571 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e2901276-9db8-4669-ab93-7c45cf438543/bin-2019/uautomizer/data/a521bc9b5/bff7f019d9444f6c878931577b0ab3aa/FLAG30e372201 [2018-11-18 16:11:33,581 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e2901276-9db8-4669-ab93-7c45cf438543/bin-2019/uautomizer/data/a521bc9b5/bff7f019d9444f6c878931577b0ab3aa [2018-11-18 16:11:33,584 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:11:33,585 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 16:11:33,586 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:11:33,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:11:33,589 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:11:33,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:11:33" (1/1) ... [2018-11-18 16:11:33,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d86102c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:11:33, skipping insertion in model container [2018-11-18 16:11:33,592 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:11:33" (1/1) ... [2018-11-18 16:11:33,599 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:11:33,614 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:11:33,749 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:11:33,752 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:11:33,765 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:11:33,785 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:11:33,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:11:33 WrapperNode [2018-11-18 16:11:33,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:11:33,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:11:33,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:11:33,786 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:11:33,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:11:33" (1/1) ... [2018-11-18 16:11:33,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:11:33" (1/1) ... [2018-11-18 16:11:33,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:11:33" (1/1) ... [2018-11-18 16:11:33,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:11:33" (1/1) ... [2018-11-18 16:11:33,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:11:33" (1/1) ... [2018-11-18 16:11:33,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:11:33" (1/1) ... [2018-11-18 16:11:33,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:11:33" (1/1) ... [2018-11-18 16:11:33,811 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:11:33,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:11:33,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:11:33,812 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:11:33,812 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:11:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e2901276-9db8-4669-ab93-7c45cf438543/bin-2019/uautomizer/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 [2018-11-18 16:11:33,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:11:33,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:11:33,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 16:11:33,889 INFO L138 BoogieDeclarations]: Found implementation of procedure InvSqrt [2018-11-18 16:11:33,889 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:11:33,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 16:11:33,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-18 16:11:33,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-18 16:11:33,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 16:11:33,889 INFO L130 BoogieDeclarations]: Found specification of procedure InvSqrt [2018-11-18 16:11:33,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:11:33,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 16:11:33,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 16:11:33,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 16:11:33,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 16:11:33,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 16:11:33,890 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:11:33,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:11:33,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:11:33,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-11-18 16:11:33,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 16:11:35,831 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:11:35,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:11:35 BoogieIcfgContainer [2018-11-18 16:11:35,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:11:35,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:11:35,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:11:35,835 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:11:35,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:11:33" (1/3) ... [2018-11-18 16:11:35,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f3a24a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:11:35, skipping insertion in model container [2018-11-18 16:11:35,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:11:33" (2/3) ... [2018-11-18 16:11:35,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f3a24a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:11:35, skipping insertion in model container [2018-11-18 16:11:35,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:11:35" (3/3) ... [2018-11-18 16:11:35,838 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-11-18 16:11:35,846 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:11:35,852 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 16:11:35,864 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 16:11:35,885 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:11:35,886 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:11:35,886 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:11:35,886 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:11:35,886 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:11:35,886 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:11:35,886 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:11:35,886 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:11:35,886 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:11:35,895 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-18 16:11:35,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 16:11:35,899 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:11:35,899 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:11:35,901 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:11:35,905 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:11:35,905 INFO L82 PathProgramCache]: Analyzing trace with hash 77812212, now seen corresponding path program 1 times [2018-11-18 16:11:35,907 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:11:35,908 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e2901276-9db8-4669-ab93-7c45cf438543/bin-2019/uautomizer/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 [2018-11-18 16:11:35,911 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:11:36,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:11:36,959 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:11:43,421 WARN L180 SmtUtils]: Spent 1.66 s on a formula simplification that was a NOOP. DAG size: 30 [2018-11-18 16:11:45,463 WARN L832 $PredicateComparison]: unable to prove that (exists ((|v_InvSqrt_#t~mem0_4| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_InvSqrt_#t~mem0_4|) ((_ extract 30 23) |v_InvSqrt_#t~mem0_4|) ((_ extract 22 0) |v_InvSqrt_#t~mem0_4|)))) (and (fp.leq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.geq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (= |c_main_#t~ret4| (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_InvSqrt_#t~mem0_4| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven .cse1 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse0) .cse1) .cse1)))))))) is different from false [2018-11-18 16:11:47,494 WARN L854 $PredicateComparison]: unable to prove that (exists ((|v_InvSqrt_#t~mem0_4| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_InvSqrt_#t~mem0_4|) ((_ extract 30 23) |v_InvSqrt_#t~mem0_4|) ((_ extract 22 0) |v_InvSqrt_#t~mem0_4|)))) (and (fp.leq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.geq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (= |c_main_#t~ret4| (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_InvSqrt_#t~mem0_4| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven .cse1 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse0) .cse1) .cse1)))))))) is different from true [2018-11-18 16:11:49,530 WARN L832 $PredicateComparison]: unable to prove that (exists ((|v_InvSqrt_#t~mem0_4| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_InvSqrt_#t~mem0_4|) ((_ extract 30 23) |v_InvSqrt_#t~mem0_4|) ((_ extract 22 0) |v_InvSqrt_#t~mem0_4|)))) (and (fp.leq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.geq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (= (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_InvSqrt_#t~mem0_4| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven .cse1 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse0) .cse1) .cse1)))) c_main_~r~0)))) is different from false [2018-11-18 16:11:51,556 WARN L854 $PredicateComparison]: unable to prove that (exists ((|v_InvSqrt_#t~mem0_4| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_InvSqrt_#t~mem0_4|) ((_ extract 30 23) |v_InvSqrt_#t~mem0_4|) ((_ extract 22 0) |v_InvSqrt_#t~mem0_4|)))) (and (fp.leq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.geq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (= (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_InvSqrt_#t~mem0_4| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven .cse1 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse0) .cse1) .cse1)))) c_main_~r~0)))) is different from true [2018-11-18 16:12:07,905 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse3 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (and (exists ((v_prenex_4 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_prenex_4) ((_ extract 30 23) v_prenex_4) ((_ extract 22 0) v_prenex_4)))) (and (fp.geq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.leq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (not (fp.geq (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr v_prenex_4 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven .cse1 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse0) .cse1) .cse1)))) (_ +zero 8 24)))))) .cse3) (and (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32)) (exists ((|v_InvSqrt_#t~mem0_4| (_ BitVec 32))) (let ((.cse5 (fp ((_ extract 31 31) |v_InvSqrt_#t~mem0_4|) ((_ extract 30 23) |v_InvSqrt_#t~mem0_4|) ((_ extract 22 0) |v_InvSqrt_#t~mem0_4|)))) (let ((.cse4 (let ((.cse6 (let ((.cse7 (bvadd (bvneg (bvashr |v_InvSqrt_#t~mem0_4| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse7) ((_ extract 30 23) .cse7) ((_ extract 22 0) .cse7))))) (fp.mul roundNearestTiesToEven .cse6 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse5) .cse6) .cse6)))))) (and (fp.geq .cse4 (_ +zero 8 24)) (fp.leq .cse5 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven .cse4) ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq .cse5 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0)))))))) (and .cse3 (exists ((v_prenex_2 (_ BitVec 32))) (let ((.cse9 (fp ((_ extract 31 31) v_prenex_2) ((_ extract 30 23) v_prenex_2) ((_ extract 22 0) v_prenex_2)))) (and (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (let ((.cse8 (let ((.cse10 (bvadd (bvneg (bvashr v_prenex_2 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse10) ((_ extract 30 23) .cse10) ((_ extract 22 0) .cse10))))) (fp.mul roundNearestTiesToEven .cse8 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse9) .cse8) .cse8))))) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (fp.geq .cse9 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.leq .cse9 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)))))))) is different from false [2018-11-18 16:12:22,258 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse4 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and (exists ((|v_InvSqrt_#t~mem0_4| (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) |v_InvSqrt_#t~mem0_4|) ((_ extract 30 23) |v_InvSqrt_#t~mem0_4|) ((_ extract 22 0) |v_InvSqrt_#t~mem0_4|)))) (let ((.cse0 (let ((.cse2 (let ((.cse3 (bvadd (bvneg (bvashr |v_InvSqrt_#t~mem0_4| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.mul roundNearestTiesToEven .cse2 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse1) .cse2) .cse2)))))) (and (fp.geq .cse0 (_ +zero 8 24)) (fp.leq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (and .cse4 (exists ((v_prenex_4 (_ BitVec 32))) (let ((.cse5 (fp ((_ extract 31 31) v_prenex_4) ((_ extract 30 23) v_prenex_4) ((_ extract 22 0) v_prenex_4)))) (and (fp.geq .cse5 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.leq .cse5 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (not (fp.geq (let ((.cse6 (let ((.cse7 (bvadd (bvneg (bvashr v_prenex_4 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse7) ((_ extract 30 23) .cse7) ((_ extract 22 0) .cse7))))) (fp.mul roundNearestTiesToEven .cse6 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse5) .cse6) .cse6)))) (_ +zero 8 24))))))) (and .cse4 (exists ((v_prenex_2 (_ BitVec 32))) (let ((.cse9 (fp ((_ extract 31 31) v_prenex_2) ((_ extract 30 23) v_prenex_2) ((_ extract 22 0) v_prenex_2)))) (and (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (let ((.cse8 (let ((.cse10 (bvadd (bvneg (bvashr v_prenex_2 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse10) ((_ extract 30 23) .cse10) ((_ extract 22 0) .cse10))))) (fp.mul roundNearestTiesToEven .cse8 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse9) .cse8) .cse8))))) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (fp.geq .cse9 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.leq .cse9 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)))))))) is different from false [2018-11-18 16:12:32,497 WARN L832 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_4 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_prenex_4) ((_ extract 30 23) v_prenex_4) ((_ extract 22 0) v_prenex_4)))) (and (fp.geq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.leq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (not (fp.geq (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr v_prenex_4 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven .cse1 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse0) .cse1) .cse1)))) (_ +zero 8 24)))))) (exists ((v_prenex_2 (_ BitVec 32))) (let ((.cse4 (fp ((_ extract 31 31) v_prenex_2) ((_ extract 30 23) v_prenex_2) ((_ extract 22 0) v_prenex_2)))) (and (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (let ((.cse3 (let ((.cse5 (bvadd (bvneg (bvashr v_prenex_2 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul roundNearestTiesToEven .cse3 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse4) .cse3) .cse3))))) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (fp.geq .cse4 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.leq .cse4 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)))))) is different from false [2018-11-18 16:12:34,533 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_4 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_prenex_4) ((_ extract 30 23) v_prenex_4) ((_ extract 22 0) v_prenex_4)))) (and (fp.geq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.leq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (not (fp.geq (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr v_prenex_4 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven .cse1 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse0) .cse1) .cse1)))) (_ +zero 8 24)))))) (exists ((v_prenex_2 (_ BitVec 32))) (let ((.cse4 (fp ((_ extract 31 31) v_prenex_2) ((_ extract 30 23) v_prenex_2) ((_ extract 22 0) v_prenex_2)))) (and (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (let ((.cse3 (let ((.cse5 (bvadd (bvneg (bvashr v_prenex_2 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul roundNearestTiesToEven .cse3 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse4) .cse3) .cse3))))) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (fp.geq .cse4 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.leq .cse4 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)))))) is different from true [2018-11-18 16:12:34,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:12:34,540 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:12:34,552 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:12:34,552 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 16:12:34,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 16:12:34,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 16:12:34,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=8, Unknown=9, NotChecked=40, Total=72 [2018-11-18 16:12:34,565 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 9 states. [2018-11-18 16:12:38,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:12:38,704 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2018-11-18 16:12:38,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 16:12:38,743 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2018-11-18 16:12:38,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:12:38,748 INFO L225 Difference]: With dead ends: 30 [2018-11-18 16:12:38,748 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 16:12:38,750 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.9s TimeCoverageRelationStatistics Valid=15, Invalid=8, Unknown=9, NotChecked=40, Total=72 [2018-11-18 16:12:38,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 16:12:38,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 16:12:38,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 16:12:38,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 16:12:38,771 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-11-18 16:12:38,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:12:38,772 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 16:12:38,772 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 16:12:38,772 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 16:12:38,772 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 16:12:38,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 16:12:54,675 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-11-18 16:12:54,676 FATAL L265 ToolchainWalker]: 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:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:221) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.push(DiffWrapperScript.java:93) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.push(WrapperScript.java:101) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UndoableWrapperScript.push(UndoableWrapperScript.java:52) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:621) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:122) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:187) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.simplify(SmtUtils.java:151) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.simplifyWithStatistics(SmtUtils.java:198) 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:980) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 32 more [2018-11-18 16:12:54,677 INFO L168 Benchmark]: Toolchain (without parser) took 81092.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -106.3 MB). Peak memory consumption was 36.8 MB. Max. memory is 11.5 GB. [2018-11-18 16:12:54,678 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:12:54,678 INFO L168 Benchmark]: CACSL2BoogieTranslator took 199.70 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 16:12:54,679 INFO L168 Benchmark]: Boogie Preprocessor took 25.45 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:12:54,679 INFO L168 Benchmark]: RCFGBuilder took 2020.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -173.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2018-11-18 16:12:54,680 INFO L168 Benchmark]: TraceAbstraction took 78844.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 51.1 MB). Peak memory consumption was 51.1 MB. Max. memory is 11.5 GB. [2018-11-18 16:12:54,681 INFO L336 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 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 199.70 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.45 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 2020.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -173.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 78844.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 51.1 MB). Peak memory consumption was 51.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - 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:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...