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/id2_i5_o5-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-11 16:33:44,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-11 16:33:44,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-11 16:33:44,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-11 16:33:44,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-11 16:33:44,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-11 16:33:44,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-11 16:33:44,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-11 16:33:44,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-11 16:33:44,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-11 16:33:44,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-11 16:33:44,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-11 16:33:44,699 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-11 16:33:44,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-11 16:33:44,701 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-11 16:33:44,702 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-11 16:33:44,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-11 16:33:44,722 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 16:33:44,747 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-11 16:33:44,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-11 16:33:44,747 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-11 16:33:44,747 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-11 16:33:44,748 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-11 16:33:44,748 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-11 16:33:44,749 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-11 16:33:44,749 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-11 16:33:44,749 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-11 16:33:44,749 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-11 16:33:44,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-11 16:33:44,750 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-11 16:33:44,751 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-11 16:33:44,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-11 16:33:44,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-11 16:33:44,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-11 16:33:44,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-11 16:33:44,752 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-11 16:33:44,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-11 16:33:44,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-11 16:33:44,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-11 16:33:44,753 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-11 16:33:44,753 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-11 16:33:44,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:33:44,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-11 16:33:44,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-11 16:33:44,754 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-11 16:33:44,754 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-11 16:33:44,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-11 16:33:44,754 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-11 16:33:44,784 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-11 16:33:44,802 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-11 16:33:44,809 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-11 16:33:44,811 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-11 16:33:44,811 INFO L275 PluginConnector]: CDTParser initialized [2019-09-11 16:33:44,813 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id2_i5_o5-1.c [2019-09-11 16:33:44,883 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3901d8e5c/a18b1b13363b43e295347e9ad636afe0/FLAGc587f4ca0 [2019-09-11 16:33:45,364 INFO L306 CDTParser]: Found 1 translation units. [2019-09-11 16:33:45,365 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/id2_i5_o5-1.c [2019-09-11 16:33:45,371 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3901d8e5c/a18b1b13363b43e295347e9ad636afe0/FLAGc587f4ca0 [2019-09-11 16:33:45,753 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3901d8e5c/a18b1b13363b43e295347e9ad636afe0 [2019-09-11 16:33:45,762 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-11 16:33:45,764 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-11 16:33:45,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-11 16:33:45,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-11 16:33:45,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-11 16:33:45,774 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:33:45" (1/1) ... [2019-09-11 16:33:45,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78ce4528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:33:45, skipping insertion in model container [2019-09-11 16:33:45,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:33:45" (1/1) ... [2019-09-11 16:33:45,784 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-11 16:33:45,800 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-11 16:33:45,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:33:45,978 INFO L188 MainTranslator]: Completed pre-run [2019-09-11 16:33:45,992 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:33:46,007 INFO L192 MainTranslator]: Completed translation [2019-09-11 16:33:46,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:33:46 WrapperNode [2019-09-11 16:33:46,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-11 16:33:46,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-11 16:33:46,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-11 16:33:46,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-11 16:33:46,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:33:46" (1/1) ... [2019-09-11 16:33:46,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:33:46" (1/1) ... [2019-09-11 16:33:46,127 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:33:46" (1/1) ... [2019-09-11 16:33:46,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:33:46" (1/1) ... [2019-09-11 16:33:46,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:33:46" (1/1) ... [2019-09-11 16:33:46,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:33:46" (1/1) ... [2019-09-11 16:33:46,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:33:46" (1/1) ... [2019-09-11 16:33:46,136 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-11 16:33:46,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-11 16:33:46,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-11 16:33:46,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-11 16:33:46,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:33:46" (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 16:33:46,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-11 16:33:46,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-11 16:33:46,205 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2019-09-11 16:33:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2019-09-11 16:33:46,207 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-11 16:33:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-11 16:33:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-11 16:33:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure id [2019-09-11 16:33:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2019-09-11 16:33:46,208 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-11 16:33:46,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-11 16:33:46,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-11 16:33:46,380 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-11 16:33:46,381 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-11 16:33:46,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:33:46 BoogieIcfgContainer [2019-09-11 16:33:46,384 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-11 16:33:46,385 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-11 16:33:46,385 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-11 16:33:46,385 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-11 16:33:46,386 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:33:46" (1/1) ... [2019-09-11 16:33:46,444 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-11 16:33:46,696 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-11 16:33:46,719 INFO L272 AbstractInterpreter]: Visited 29 different actions 149 times. Merged at 10 different actions 70 times. Widened at 2 different actions 4 times. Performed 225 root evaluator evaluations with a maximum evaluation depth of 3. Performed 225 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 6 fixpoints after 3 different actions. Largest state had 4 variables. [2019-09-11 16:33:46,720 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-11 16:33:46,722 INFO L168 Benchmark]: Toolchain (without parser) took 957.49 ms. Allocated memory was 135.3 MB in the beginning and 200.8 MB in the end (delta: 65.5 MB). Free memory was 88.0 MB in the beginning and 155.1 MB in the end (delta: -67.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-11 16:33:46,723 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 135.3 MB. Free memory was 106.6 MB in the beginning and 106.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-11 16:33:46,724 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.34 ms. Allocated memory is still 135.3 MB. Free memory was 87.8 MB in the beginning and 78.6 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-09-11 16:33:46,726 INFO L168 Benchmark]: Boogie Preprocessor took 127.07 ms. Allocated memory was 135.3 MB in the beginning and 200.8 MB in the end (delta: 65.5 MB). Free memory was 78.6 MB in the beginning and 178.8 MB in the end (delta: -100.2 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2019-09-11 16:33:46,727 INFO L168 Benchmark]: RCFGBuilder took 247.67 ms. Allocated memory is still 200.8 MB. Free memory was 178.8 MB in the beginning and 166.9 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. [2019-09-11 16:33:46,728 INFO L168 Benchmark]: Abstract Interpretation took 335.02 ms. Allocated memory is still 200.8 MB. Free memory was 166.3 MB in the beginning and 155.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2019-09-11 16:33:46,732 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 135.3 MB. Free memory was 106.6 MB in the beginning and 106.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 243.34 ms. Allocated memory is still 135.3 MB. Free memory was 87.8 MB in the beginning and 78.6 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.07 ms. Allocated memory was 135.3 MB in the beginning and 200.8 MB in the end (delta: 65.5 MB). Free memory was 78.6 MB in the beginning and 178.8 MB in the end (delta: -100.2 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 247.67 ms. Allocated memory is still 200.8 MB. Free memory was 178.8 MB in the beginning and 166.9 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 335.02 ms. Allocated memory is still 200.8 MB. Free memory was 166.3 MB in the beginning and 155.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 21]: 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: [L18] int input = 5; [L19] CALL, EXPR id(input) [L8] COND FALSE !(x==0) [L9] CALL, EXPR id2(x-1) [L13] COND FALSE !(x==0) [L14] CALL, EXPR id(x-1) [L8] COND FALSE !(x==0) [L9] CALL, EXPR id2(x-1) [L13] COND FALSE !(x==0) [L14] CALL, EXPR id(x-1) [L8] COND FALSE !(x==0) [L9] CALL, EXPR id2(x-1) [L13] COND TRUE x==0 [L13] return 0; [L9] RET, EXPR id2(x-1) [L9] return id2(x-1) + 1; [L14] RET, EXPR id(x-1) [L14] return id(x-1) + 1; [L9] RET, EXPR id2(x-1) [L9] return id2(x-1) + 1; [L14] RET, EXPR id(x-1) [L14] return id(x-1) + 1; [L9] RET, EXPR id2(x-1) [L9] return id2(x-1) + 1; [L19] RET, EXPR id(input) [L19] int result = id(input); [L20] COND TRUE result == 5 [L21] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...