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-fea9116 [2019-09-20 13:48:01,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:48:01,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:48:01,713 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:48:01,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:48:01,714 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:48:01,715 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:48:01,717 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:48:01,719 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:48:01,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:48:01,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:48:01,722 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:48:01,722 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:48:01,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:48:01,724 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:48:01,725 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:48:01,726 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:48:01,727 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:48:01,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:48:01,730 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:48:01,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:48:01,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:48:01,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:48:01,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:48:01,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 13:48:01,745 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 [2019-09-20 13:48:01,765 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:48:01,765 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:48:01,766 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:48:01,766 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:48:01,766 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:48:01,767 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:48:01,767 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:48:01,767 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:48:01,767 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:48:01,767 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:48:01,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:48:01,769 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:48:01,770 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:48:01,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:48:01,770 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:48:01,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:48:01,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:48:01,771 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:48:01,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:48:01,771 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:48:01,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:48:01,772 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:48:01,772 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:48:01,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:48:01,772 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:48:01,773 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:48:01,773 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:48:01,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:48:01,773 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:48:01,773 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:48:01,826 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:48:01,837 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:48:01,840 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:48:01,841 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:48:01,841 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:48:01,842 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/sqrt1.c [2019-09-20 13:48:01,900 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd0fdb67c/d59807fa7cef4145b96217cbfc5606c5/FLAGd6656db8c [2019-09-20 13:48:02,337 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:48:02,338 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/sqrt1.c [2019-09-20 13:48:02,345 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd0fdb67c/d59807fa7cef4145b96217cbfc5606c5/FLAGd6656db8c [2019-09-20 13:48:02,754 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd0fdb67c/d59807fa7cef4145b96217cbfc5606c5 [2019-09-20 13:48:02,764 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:48:02,765 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:48:02,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:48:02,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:48:02,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:48:02,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:48:02" (1/1) ... [2019-09-20 13:48:02,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@404140b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:02, skipping insertion in model container [2019-09-20 13:48:02,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:48:02" (1/1) ... [2019-09-20 13:48:02,781 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:48:02,805 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:48:02,997 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:48:03,004 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:48:03,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:48:03,039 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:48:03,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:03 WrapperNode [2019-09-20 13:48:03,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:48:03,040 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:48:03,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:48:03,040 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:48:03,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:03" (1/1) ... [2019-09-20 13:48:03,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:03" (1/1) ... [2019-09-20 13:48:03,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:03" (1/1) ... [2019-09-20 13:48:03,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:03" (1/1) ... [2019-09-20 13:48:03,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:03" (1/1) ... [2019-09-20 13:48:03,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:03" (1/1) ... [2019-09-20 13:48:03,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:03" (1/1) ... [2019-09-20 13:48:03,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:48:03,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:48:03,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:48:03,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:48:03,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:03" (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 [2019-09-20 13:48:03,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:48:03,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:48:03,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 13:48:03,213 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:48:03,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:48:03,214 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:48:03,214 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-20 13:48:03,214 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 13:48:03,214 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:48:03,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:48:03,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:48:03,406 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:48:03,406 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 13:48:03,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:48:03 BoogieIcfgContainer [2019-09-20 13:48:03,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:48:03,408 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-20 13:48:03,409 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-20 13:48:03,409 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-20 13:48:03,410 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:48:03" (1/1) ... [2019-09-20 13:48:03,445 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:48:04,209 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-20 13:48:04,232 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. [2019-09-20 13:48:04,232 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-20 13:48:04,236 INFO L168 Benchmark]: Toolchain (without parser) took 1469.34 ms. Allocated memory was 130.5 MB in the beginning and 198.2 MB in the end (delta: 67.6 MB). Free memory was 86.2 MB in the beginning and 87.3 MB in the end (delta: -1.0 MB). Peak memory consumption was 66.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:04,238 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 130.5 MB. Free memory was 104.6 MB in the beginning and 104.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:48:04,239 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.05 ms. Allocated memory is still 130.5 MB. Free memory was 86.0 MB in the beginning and 76.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:04,240 INFO L168 Benchmark]: Boogie Preprocessor took 113.12 ms. Allocated memory was 130.5 MB in the beginning and 198.2 MB in the end (delta: 67.6 MB). Free memory was 76.5 MB in the beginning and 174.4 MB in the end (delta: -98.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:04,241 INFO L168 Benchmark]: RCFGBuilder took 254.36 ms. Allocated memory is still 198.2 MB. Free memory was 174.4 MB in the beginning and 161.7 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:04,242 INFO L168 Benchmark]: Abstract Interpretation took 824.14 ms. Allocated memory is still 198.2 MB. Free memory was 161.7 MB in the beginning and 87.3 MB in the end (delta: 74.4 MB). Peak memory consumption was 74.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:04,246 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 130.5 MB. Free memory was 104.6 MB in the beginning and 104.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 274.05 ms. Allocated memory is still 130.5 MB. Free memory was 86.0 MB in the beginning and 76.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.12 ms. Allocated memory was 130.5 MB in the beginning and 198.2 MB in the end (delta: 67.6 MB). Free memory was 76.5 MB in the beginning and 174.4 MB in the end (delta: -98.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 254.36 ms. Allocated memory is still 198.2 MB. Free memory was 174.4 MB in the beginning and 161.7 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 824.14 ms. Allocated memory is still 198.2 MB. Free memory was 161.7 MB in the beginning and 87.3 MB in the end (delta: 74.4 MB). Peak memory consumption was 74.4 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...