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/recursive-simple/id_i5_o5-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-11 16:34:09,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-11 16:34:09,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-11 16:34:09,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-11 16:34:09,788 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-11 16:34:09,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-11 16:34:09,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-11 16:34:09,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-11 16:34:09,792 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-11 16:34:09,793 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-11 16:34:09,794 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-11 16:34:09,796 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-11 16:34:09,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-11 16:34:09,799 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-11 16:34:09,800 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-11 16:34:09,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-11 16:34:09,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-11 16:34:09,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-11 16:34:09,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-11 16:34:09,812 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-11 16:34:09,813 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 [2019-09-11 16:34:09,827 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-11 16:34:09,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-11 16:34:09,828 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-11 16:34:09,828 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-11 16:34:09,829 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-11 16:34:09,829 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-11 16:34:09,829 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-11 16:34:09,830 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-11 16:34:09,830 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-11 16:34:09,830 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-11 16:34:09,831 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-11 16:34:09,831 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-11 16:34:09,831 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-11 16:34:09,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-11 16:34:09,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-11 16:34:09,832 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-11 16:34:09,832 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-11 16:34:09,832 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-11 16:34:09,832 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-11 16:34:09,832 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-11 16:34:09,833 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-11 16:34:09,833 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-11 16:34:09,833 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-11 16:34:09,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:34:09,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-11 16:34:09,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-11 16:34:09,834 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-11 16:34:09,834 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-11 16:34:09,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-11 16:34:09,834 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-11 16:34:09,863 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-11 16:34:09,876 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-11 16:34:09,880 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-11 16:34:09,881 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-11 16:34:09,882 INFO L275 PluginConnector]: CDTParser initialized [2019-09-11 16:34:09,883 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_i5_o5-2.c [2019-09-11 16:34:09,948 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c18473d9/9dc175f2122a4f389bf9105714772e6c/FLAG87a1830bb [2019-09-11 16:34:10,379 INFO L306 CDTParser]: Found 1 translation units. [2019-09-11 16:34:10,379 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/id_i5_o5-2.c [2019-09-11 16:34:10,386 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c18473d9/9dc175f2122a4f389bf9105714772e6c/FLAG87a1830bb [2019-09-11 16:34:10,802 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c18473d9/9dc175f2122a4f389bf9105714772e6c [2019-09-11 16:34:10,816 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-11 16:34:10,818 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-11 16:34:10,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-11 16:34:10,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-11 16:34:10,823 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-11 16:34:10,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:34:10" (1/1) ... [2019-09-11 16:34:10,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50d0a3d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:34:10, skipping insertion in model container [2019-09-11 16:34:10,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:34:10" (1/1) ... [2019-09-11 16:34:10,837 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-11 16:34:10,856 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-11 16:34:11,060 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:34:11,064 INFO L188 MainTranslator]: Completed pre-run [2019-09-11 16:34:11,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:34:11,093 INFO L192 MainTranslator]: Completed translation [2019-09-11 16:34:11,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:34:11 WrapperNode [2019-09-11 16:34:11,094 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-11 16:34:11,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-11 16:34:11,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-11 16:34:11,095 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-11 16:34:11,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:34:11" (1/1) ... [2019-09-11 16:34:11,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:34:11" (1/1) ... [2019-09-11 16:34:11,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:34:11" (1/1) ... [2019-09-11 16:34:11,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:34:11" (1/1) ... [2019-09-11 16:34:11,225 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:34:11" (1/1) ... [2019-09-11 16:34:11,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:34:11" (1/1) ... [2019-09-11 16:34:11,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:34:11" (1/1) ... [2019-09-11 16:34:11,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-11 16:34:11,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-11 16:34:11,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-11 16:34:11,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-11 16:34:11,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:34:11" (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 [2019-09-11 16:34:11,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-11 16:34:11,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-11 16:34:11,289 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2019-09-11 16:34:11,289 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-11 16:34:11,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-11 16:34:11,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-11 16:34:11,289 INFO L130 BoogieDeclarations]: Found specification of procedure id [2019-09-11 16:34:11,289 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-11 16:34:11,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-11 16:34:11,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-11 16:34:11,424 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-11 16:34:11,424 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-11 16:34:11,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:34:11 BoogieIcfgContainer [2019-09-11 16:34:11,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-11 16:34:11,426 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-11 16:34:11,426 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-11 16:34:11,427 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-11 16:34:11,428 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:34:11" (1/1) ... [2019-09-11 16:34:11,457 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-11 16:34:11,681 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-11 16:34:11,705 INFO L272 AbstractInterpreter]: Visited 22 different actions 133 times. Merged at 7 different actions 61 times. Widened at 1 different actions 4 times. Performed 182 root evaluator evaluations with a maximum evaluation depth of 4. Performed 182 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Found 4 fixpoints after 3 different actions. Largest state had 4 variables. [2019-09-11 16:34:11,705 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-11 16:34:11,707 INFO L168 Benchmark]: Toolchain (without parser) took 888.77 ms. Allocated memory was 142.6 MB in the beginning and 202.4 MB in the end (delta: 59.8 MB). Free memory was 90.0 MB in the beginning and 158.9 MB in the end (delta: -68.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-11 16:34:11,709 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 142.6 MB. Free memory was 107.8 MB in the beginning and 107.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-11 16:34:11,710 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.73 ms. Allocated memory is still 142.6 MB. Free memory was 89.8 MB in the beginning and 80.8 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-09-11 16:34:11,711 INFO L168 Benchmark]: Boogie Preprocessor took 133.80 ms. Allocated memory was 142.6 MB in the beginning and 202.4 MB in the end (delta: 59.8 MB). Free memory was 80.8 MB in the beginning and 179.7 MB in the end (delta: -98.9 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2019-09-11 16:34:11,713 INFO L168 Benchmark]: RCFGBuilder took 196.90 ms. Allocated memory is still 202.4 MB. Free memory was 179.7 MB in the beginning and 170.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-09-11 16:34:11,714 INFO L168 Benchmark]: Abstract Interpretation took 278.72 ms. Allocated memory is still 202.4 MB. Free memory was 169.5 MB in the beginning and 158.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2019-09-11 16:34:11,719 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 142.6 MB. Free memory was 107.8 MB in the beginning and 107.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 274.73 ms. Allocated memory is still 142.6 MB. Free memory was 89.8 MB in the beginning and 80.8 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 133.80 ms. Allocated memory was 142.6 MB in the beginning and 202.4 MB in the end (delta: 59.8 MB). Free memory was 80.8 MB in the beginning and 179.7 MB in the end (delta: -98.9 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 196.90 ms. Allocated memory is still 202.4 MB. Free memory was 179.7 MB in the beginning and 170.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 278.72 ms. Allocated memory is still 202.4 MB. Free memory was 169.5 MB in the beginning and 158.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 13]: 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: [L10] int input = 5; [L11] CALL, EXPR id(input) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND TRUE x==0 [L5] return 0; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L11] RET, EXPR id(input) [L11] int result = id(input); [L12] COND TRUE result != 5 [L13] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...