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/loops/nec20.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:47:16,758 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:47:16,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:47:16,771 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:47:16,771 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:47:16,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:47:16,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:47:16,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:47:16,777 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:47:16,778 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:47:16,779 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:47:16,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:47:16,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:47:16,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:47:16,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:47:16,784 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:47:16,784 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:47:16,785 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:47:16,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:47:16,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:47:16,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:47:16,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:47:16,793 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:47:16,794 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:47:16,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 13:47:16,804 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:47:16,805 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:47:16,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:47:16,806 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 13:47:16,821 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:47:16,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:47:16,821 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:47:16,822 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:47:16,822 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:47:16,822 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:47:16,823 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:47:16,823 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:47:16,823 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:47:16,823 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:47:16,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:47:16,824 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:47:16,824 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:47:16,824 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:47:16,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:47:16,825 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:47:16,825 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:47:16,825 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:47:16,825 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:47:16,826 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:47:16,826 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:47:16,826 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:47:16,826 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:47:16,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:47:16,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:47:16,827 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:47:16,827 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:47:16,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:47:16,827 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:47:16,828 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:47:16,862 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:47:16,876 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:47:16,880 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:47:16,881 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:47:16,881 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:47:16,882 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/nec20.c [2019-09-20 13:47:16,947 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4a3195dd/aaed0d2f6cc045249e749660d8eca3a4/FLAG83a213105 [2019-09-20 13:47:17,359 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:47:17,359 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/nec20.c [2019-09-20 13:47:17,365 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4a3195dd/aaed0d2f6cc045249e749660d8eca3a4/FLAG83a213105 [2019-09-20 13:47:17,794 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4a3195dd/aaed0d2f6cc045249e749660d8eca3a4 [2019-09-20 13:47:17,805 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:47:17,807 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:47:17,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:47:17,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:47:17,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:47:17,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:47:17" (1/1) ... [2019-09-20 13:47:17,817 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4967b437 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:17, skipping insertion in model container [2019-09-20 13:47:17,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:47:17" (1/1) ... [2019-09-20 13:47:17,825 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:47:17,845 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:47:18,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:47:18,027 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:47:18,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:47:18,056 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:47:18,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:18 WrapperNode [2019-09-20 13:47:18,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:47:18,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:47:18,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:47:18,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:47:18,151 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:18" (1/1) ... [2019-09-20 13:47:18,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:18" (1/1) ... [2019-09-20 13:47:18,156 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:18" (1/1) ... [2019-09-20 13:47:18,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:18" (1/1) ... [2019-09-20 13:47:18,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:18" (1/1) ... [2019-09-20 13:47:18,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:18" (1/1) ... [2019-09-20 13:47:18,172 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:18" (1/1) ... [2019-09-20 13:47:18,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:47:18,175 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:47:18,175 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:47:18,175 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:47:18,176 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:18" (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 13:47:18,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:47:18,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:47:18,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 13:47:18,233 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:47:18,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:47:18,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-20 13:47:18,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 13:47:18,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-20 13:47:18,233 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:47:18,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:47:18,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:47:18,418 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:47:18,418 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 13:47:18,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:47:18 BoogieIcfgContainer [2019-09-20 13:47:18,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:47:18,421 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-20 13:47:18,421 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-20 13:47:18,421 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-20 13:47:18,422 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:47:18" (1/1) ... [2019-09-20 13:47:18,469 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:47:18,562 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-20 13:47:18,809 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-20 13:47:18,829 INFO L272 AbstractInterpreter]: Visited 30 different actions 216 times. Merged at 14 different actions 86 times. Widened at 1 different actions 7 times. Performed 343 root evaluator evaluations with a maximum evaluation depth of 6. Performed 343 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 13 fixpoints after 3 different actions. Largest state had 11 variables. [2019-09-20 13:47:18,830 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-20 13:47:18,833 INFO L168 Benchmark]: Toolchain (without parser) took 1024.55 ms. Allocated memory was 133.7 MB in the beginning and 200.3 MB in the end (delta: 66.6 MB). Free memory was 88.1 MB in the beginning and 148.3 MB in the end (delta: -60.2 MB). Peak memory consumption was 6.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:18,835 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 133.7 MB. Free memory was 106.5 MB in the beginning and 106.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:47:18,836 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.74 ms. Allocated memory is still 133.7 MB. Free memory was 87.9 MB in the beginning and 78.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:18,841 INFO L168 Benchmark]: Boogie Preprocessor took 117.23 ms. Allocated memory was 133.7 MB in the beginning and 200.3 MB in the end (delta: 66.6 MB). Free memory was 78.1 MB in the beginning and 176.7 MB in the end (delta: -98.6 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:18,843 INFO L168 Benchmark]: RCFGBuilder took 245.69 ms. Allocated memory is still 200.3 MB. Free memory was 176.7 MB in the beginning and 163.2 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:18,844 INFO L168 Benchmark]: Abstract Interpretation took 409.04 ms. Allocated memory is still 200.3 MB. Free memory was 163.2 MB in the beginning and 148.3 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:18,853 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 133.7 MB. Free memory was 106.5 MB in the beginning and 106.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 248.74 ms. Allocated memory is still 133.7 MB. Free memory was 87.9 MB in the beginning and 78.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.23 ms. Allocated memory was 133.7 MB in the beginning and 200.3 MB in the end (delta: 66.6 MB). Free memory was 78.1 MB in the beginning and 176.7 MB in the end (delta: -98.6 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 245.69 ms. Allocated memory is still 200.3 MB. Free memory was 176.7 MB in the beginning and 163.2 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 409.04 ms. Allocated memory is still 200.3 MB. Free memory was 163.2 MB in the beginning and 148.3 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 6]: 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 b; [L13] _Bool k=__VERIFIER_nondet_bool(); [L14] unsigned int i,n,j; [L15] int a[1025]; [L17] COND TRUE \read(k) [L18] n=0 [L23] i=0 [L24] j=__VERIFIER_nondet_uint() [L25] COND FALSE !(j > 10000) [L28] COND FALSE !(i <= n) [L33] a[i]=0 [L34] CALL __VERIFIER_assert(j<1025) [L5] COND TRUE !(cond) [L6] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...