java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1072a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-2989841 [2019-08-10 01:55:20,949 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-10 01:55:20,951 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-10 01:55:20,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-10 01:55:20,963 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-10 01:55:20,964 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-10 01:55:20,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-10 01:55:20,967 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-10 01:55:20,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-10 01:55:20,969 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-10 01:55:20,970 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-10 01:55:20,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-10 01:55:20,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-10 01:55:20,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-10 01:55:20,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-10 01:55:20,975 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-10 01:55:20,976 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-10 01:55:20,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-10 01:55:20,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-10 01:55:20,981 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-10 01:55:20,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-10 01:55:20,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-10 01:55:20,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-10 01:55:20,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-10 01:55:20,991 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-10 01:55:20,991 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-10 01:55:20,992 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-10 01:55:20,993 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-10 01:55:20,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-10 01:55:20,994 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-10 01:55:20,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-10 01:55:20,995 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-10 01:55:20,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-10 01:55:20,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-10 01:55:20,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-10 01:55:20,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-10 01:55:20,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-10 01:55:20,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-10 01:55:20,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-10 01:55:21,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-10 01:55:21,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-10 01:55:21,002 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-08-10 01:55:21,017 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-10 01:55:21,017 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-10 01:55:21,018 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-10 01:55:21,018 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-10 01:55:21,018 INFO L138 SettingsManager]: * Use SBE=true [2019-08-10 01:55:21,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-10 01:55:21,019 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-10 01:55:21,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-10 01:55:21,019 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-10 01:55:21,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-10 01:55:21,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-10 01:55:21,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-10 01:55:21,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-10 01:55:21,020 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-10 01:55:21,020 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-10 01:55:21,021 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-10 01:55:21,021 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-10 01:55:21,021 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-10 01:55:21,021 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-10 01:55:21,021 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-10 01:55:21,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-10 01:55:21,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-10 01:55:21,022 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-10 01:55:21,022 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-10 01:55:21,022 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-10 01:55:21,023 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-10 01:55:21,023 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-10 01:55:21,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-10 01:55:21,023 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-10 01:55:21,071 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-10 01:55:21,083 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-10 01:55:21,087 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-10 01:55:21,088 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-10 01:55:21,089 INFO L275 PluginConnector]: CDTParser initialized [2019-08-10 01:55:21,089 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1072a.c [2019-08-10 01:55:21,147 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39cd1e045/f8061ddddb924580ad094766a7ac7f59/FLAG87dd12db5 [2019-08-10 01:55:21,598 INFO L306 CDTParser]: Found 1 translation units. [2019-08-10 01:55:21,600 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1072a.c [2019-08-10 01:55:21,610 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39cd1e045/f8061ddddb924580ad094766a7ac7f59/FLAG87dd12db5 [2019-08-10 01:55:21,986 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39cd1e045/f8061ddddb924580ad094766a7ac7f59 [2019-08-10 01:55:21,995 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-10 01:55:21,996 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-10 01:55:21,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-10 01:55:21,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-10 01:55:22,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-10 01:55:22,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.08 01:55:21" (1/1) ... [2019-08-10 01:55:22,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cb61d30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:55:22, skipping insertion in model container [2019-08-10 01:55:22,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.08 01:55:21" (1/1) ... [2019-08-10 01:55:22,013 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-10 01:55:22,032 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-10 01:55:22,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-10 01:55:22,199 INFO L188 MainTranslator]: Completed pre-run [2019-08-10 01:55:22,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-10 01:55:22,337 INFO L192 MainTranslator]: Completed translation [2019-08-10 01:55:22,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:55:22 WrapperNode [2019-08-10 01:55:22,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-10 01:55:22,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-10 01:55:22,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-10 01:55:22,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-10 01:55:22,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:55:22" (1/1) ... [2019-08-10 01:55:22,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:55:22" (1/1) ... [2019-08-10 01:55:22,360 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:55:22" (1/1) ... [2019-08-10 01:55:22,361 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:55:22" (1/1) ... [2019-08-10 01:55:22,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:55:22" (1/1) ... [2019-08-10 01:55:22,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:55:22" (1/1) ... [2019-08-10 01:55:22,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:55:22" (1/1) ... [2019-08-10 01:55:22,389 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-10 01:55:22,390 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-10 01:55:22,390 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-10 01:55:22,390 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-10 01:55:22,391 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:55:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-10 01:55:22,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-10 01:55:22,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-10 01:55:22,456 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2019-08-10 01:55:22,456 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2019-08-10 01:55:22,456 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-10 01:55:22,457 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-10 01:55:22,457 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2019-08-10 01:55:22,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-08-10 01:55:22,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-08-10 01:55:22,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-08-10 01:55:22,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-08-10 01:55:22,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-08-10 01:55:22,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-08-10 01:55:22,458 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2019-08-10 01:55:22,458 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-10 01:55:22,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-10 01:55:22,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-10 01:55:22,770 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-10 01:55:22,771 INFO L283 CfgBuilder]: Removed 8 assume(true) statements. [2019-08-10 01:55:22,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.08 01:55:22 BoogieIcfgContainer [2019-08-10 01:55:22,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-10 01:55:22,773 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-10 01:55:22,773 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-10 01:55:22,774 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-10 01:55:22,775 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.08 01:55:22" (1/1) ... [2019-08-10 01:55:23,210 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2019-08-10 01:55:23,369 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2019-08-10 01:55:24,655 WARN L188 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 135 [2019-08-10 01:55:25,452 WARN L188 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 132 [2019-08-10 01:55:25,778 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-08-10 01:55:26,051 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2019-08-10 01:55:26,309 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-08-10 01:55:27,139 WARN L188 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 138 [2019-08-10 01:55:27,961 WARN L188 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 135 [2019-08-10 01:55:28,268 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-08-10 01:55:28,577 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2019-08-10 01:55:28,861 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-08-10 01:55:29,135 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2019-08-10 01:55:29,500 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-10 01:55:29,511 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-10 01:55:29,518 INFO L168 Benchmark]: Toolchain (without parser) took 7517.13 ms. Allocated memory was 135.3 MB in the beginning and 296.7 MB in the end (delta: 161.5 MB). Free memory was 91.0 MB in the beginning and 189.9 MB in the end (delta: -98.9 MB). Peak memory consumption was 160.7 MB. Max. memory is 7.1 GB. [2019-08-10 01:55:29,521 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 135.3 MB. Free memory was 109.4 MB in the beginning and 109.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-10 01:55:29,522 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.92 ms. Allocated memory was 135.3 MB in the beginning and 201.3 MB in the end (delta: 66.1 MB). Free memory was 90.8 MB in the beginning and 178.2 MB in the end (delta: -87.4 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2019-08-10 01:55:29,524 INFO L168 Benchmark]: Boogie Preprocessor took 50.66 ms. Allocated memory is still 201.3 MB. Free memory was 178.2 MB in the beginning and 176.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-08-10 01:55:29,527 INFO L168 Benchmark]: RCFGBuilder took 383.10 ms. Allocated memory is still 201.3 MB. Free memory was 176.0 MB in the beginning and 157.5 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. [2019-08-10 01:55:29,528 INFO L168 Benchmark]: Symbolic Interpretation took 6738.50 ms. Allocated memory was 201.3 MB in the beginning and 296.7 MB in the end (delta: 95.4 MB). Free memory was 157.5 MB in the beginning and 189.9 MB in the end (delta: -32.4 MB). Peak memory consumption was 161.2 MB. Max. memory is 7.1 GB. [2019-08-10 01:55:29,533 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 67]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Interpreter reached this location of interest. Location might be reachable. Predicate is 137#(exists ((v_prenex_27 Int) (v_prenex_26 Int)) (or (and (= 0 |#NULL.base|) (not (= 0 v_prenex_26)) (= 0 (select |#valid| v_prenex_26)) (< v_prenex_26 |#StackHeapBarrier|) (= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0)) (= 4 (select |#length| v_prenex_26))) (and (= 0 |#NULL.base|) (= 4 (select |#length| v_prenex_27)) (= 0 (select |#valid| v_prenex_27)) (< v_prenex_27 |#StackHeapBarrier|) (= |#NULL.offset| 0) (not (= 0 v_prenex_27)) (= 0 (select |old(#valid)| 0))))). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 135.3 MB. Free memory was 109.4 MB in the beginning and 109.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 340.92 ms. Allocated memory was 135.3 MB in the beginning and 201.3 MB in the end (delta: 66.1 MB). Free memory was 90.8 MB in the beginning and 178.2 MB in the end (delta: -87.4 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 50.66 ms. Allocated memory is still 201.3 MB. Free memory was 178.2 MB in the beginning and 176.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 383.10 ms. Allocated memory is still 201.3 MB. Free memory was 176.0 MB in the beginning and 157.5 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 6738.50 ms. Allocated memory was 201.3 MB in the beginning and 296.7 MB in the end (delta: 95.4 MB). Free memory was 157.5 MB in the beginning and 189.9 MB in the end (delta: -32.4 MB). Peak memory consumption was 161.2 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...