java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AbstractInterpretationC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/nla-digbench/sqrt1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 12:39:46,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 12:39:46,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 12:39:46,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 12:39:46,825 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 12:39:46,826 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 12:39:46,828 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 12:39:46,829 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 12:39:46,831 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 12:39:46,832 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 12:39:46,833 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 12:39:46,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 12:39:46,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 12:39:46,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 12:39:46,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 12:39:46,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 12:39:46,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 12:39:46,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 12:39:46,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 12:39:46,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 12:39:46,848 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 12:39:46,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 12:39:46,850 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 12:39:46,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 12:39:46,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-03 12:39:46,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 12:39:46,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 12:39:46,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 12:39:46,876 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 12:39:46,897 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 12:39:46,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 12:39:46,899 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 12:39:46,899 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 12:39:46,899 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 12:39:46,900 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 12:39:46,900 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 12:39:46,900 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 12:39:46,900 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 12:39:46,900 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 12:39:46,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 12:39:46,902 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 12:39:46,903 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 12:39:46,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 12:39:46,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 12:39:46,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 12:39:46,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 12:39:46,904 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 12:39:46,904 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 12:39:46,904 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 12:39:46,905 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 12:39:46,905 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 12:39:46,905 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 12:39:46,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 12:39:46,906 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 12:39:46,906 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 12:39:46,906 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 12:39:46,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 12:39:46,907 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 12:39:46,907 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 12:39:46,958 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 12:39:46,971 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 12:39:46,975 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 12:39:46,976 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 12:39:46,977 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 12:39:46,977 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/sqrt1.c [2019-10-03 12:39:47,055 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b33dc8250/f5b92d715cf440c49949eb9c6f9040c5/FLAGd22abc553 [2019-10-03 12:39:47,541 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 12:39:47,541 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/sqrt1.c [2019-10-03 12:39:47,547 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b33dc8250/f5b92d715cf440c49949eb9c6f9040c5/FLAGd22abc553 [2019-10-03 12:39:47,915 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b33dc8250/f5b92d715cf440c49949eb9c6f9040c5 [2019-10-03 12:39:47,923 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 12:39:47,925 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 12:39:47,926 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 12:39:47,926 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 12:39:47,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 12:39:47,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 12:39:47" (1/1) ... [2019-10-03 12:39:47,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@364da557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:47, skipping insertion in model container [2019-10-03 12:39:47,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 12:39:47" (1/1) ... [2019-10-03 12:39:47,940 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 12:39:47,954 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 12:39:48,178 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 12:39:48,185 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 12:39:48,215 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 12:39:48,233 INFO L192 MainTranslator]: Completed translation [2019-10-03 12:39:48,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:48 WrapperNode [2019-10-03 12:39:48,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 12:39:48,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 12:39:48,235 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 12:39:48,235 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 12:39:48,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:48" (1/1) ... [2019-10-03 12:39:48,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:48" (1/1) ... [2019-10-03 12:39:48,331 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:48" (1/1) ... [2019-10-03 12:39:48,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:48" (1/1) ... [2019-10-03 12:39:48,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:48" (1/1) ... [2019-10-03 12:39:48,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:48" (1/1) ... [2019-10-03 12:39:48,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:48" (1/1) ... [2019-10-03 12:39:48,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 12:39:48,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 12:39:48,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 12:39:48,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 12:39:48,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:48" (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 [2019-10-03 12:39:48,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 12:39:48,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 12:39:48,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-03 12:39:48,410 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 12:39:48,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 12:39:48,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 12:39:48,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-03 12:39:48,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-03 12:39:48,412 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 12:39:48,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 12:39:48,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 12:39:48,608 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 12:39:48,608 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-03 12:39:48,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 12:39:48 BoogieIcfgContainer [2019-10-03 12:39:48,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 12:39:48,619 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-10-03 12:39:48,619 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-10-03 12:39:48,621 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-10-03 12:39:48,623 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 12:39:48" (1/1) ... [2019-10-03 12:39:48,679 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 12:39:49,375 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-10-03 12:39:49,396 INFO L272 AbstractInterpreter]: Visited 32 different actions 398 times. Merged at 11 different actions 66 times. Widened at 1 different actions 2 times. Performed 371 root evaluator evaluations with a maximum evaluation depth of 10. Performed 371 inverse root evaluator evaluations with a maximum inverse evaluation depth of 10. Found 7 fixpoints after 2 different actions. Largest state had 6 variables. [2019-10-03 12:39:49,397 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-10-03 12:39:49,400 INFO L168 Benchmark]: Toolchain (without parser) took 1473.89 ms. Allocated memory was 130.5 MB in the beginning and 197.7 MB in the end (delta: 67.1 MB). Free memory was 86.2 MB in the beginning and 87.4 MB in the end (delta: -1.2 MB). Peak memory consumption was 66.0 MB. Max. memory is 7.1 GB. [2019-10-03 12:39:49,402 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 130.5 MB. Free memory was 104.8 MB in the beginning and 104.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-10-03 12:39:49,403 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.31 ms. Allocated memory is still 130.5 MB. Free memory was 85.8 MB in the beginning and 76.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-10-03 12:39:49,404 INFO L168 Benchmark]: Boogie Preprocessor took 110.41 ms. Allocated memory was 130.5 MB in the beginning and 197.7 MB in the end (delta: 67.1 MB). Free memory was 76.4 MB in the beginning and 173.4 MB in the end (delta: -97.1 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. [2019-10-03 12:39:49,405 INFO L168 Benchmark]: RCFGBuilder took 272.73 ms. Allocated memory is still 197.7 MB. Free memory was 173.4 MB in the beginning and 161.6 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. [2019-10-03 12:39:49,406 INFO L168 Benchmark]: Abstract Interpretation took 778.23 ms. Allocated memory is still 197.7 MB. Free memory was 161.6 MB in the beginning and 87.4 MB in the end (delta: 74.2 MB). Peak memory consumption was 74.2 MB. Max. memory is 7.1 GB. [2019-10-03 12:39:49,410 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 130.5 MB. Free memory was 104.8 MB in the beginning and 104.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 308.31 ms. Allocated memory is still 130.5 MB. Free memory was 85.8 MB in the beginning and 76.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.41 ms. Allocated memory was 130.5 MB in the beginning and 197.7 MB in the end (delta: 67.1 MB). Free memory was 76.4 MB in the beginning and 173.4 MB in the end (delta: -97.1 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 272.73 ms. Allocated memory is still 197.7 MB. Free memory was 173.4 MB in the beginning and 161.6 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 778.23 ms. Allocated memory is still 197.7 MB. Free memory was 161.6 MB in the beginning and 87.4 MB in the end (delta: 74.2 MB). Peak memory consumption was 74.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: abstract domain could reach this error location. Possible FailurePath: [L16] int n, a, s, t; [L17] n = __VERIFIER_nondet_int() [L19] a = 0 [L20] s = 1 [L21] t = 1 [L23] COND TRUE 1 [L24] CALL __VERIFIER_assert(t == 2*a + 1) [L7] COND TRUE !(cond) [L9] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...