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/loop-invariants/mod4.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:47:55,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:47:55,743 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:47:55,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-20 13:47:55,796 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 13:47:55,821 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:47:55,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:47:55,822 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:47:55,823 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:47:55,824 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:47:55,824 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:47:55,824 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:47:55,824 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:47:55,824 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:47:55,825 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:47:55,827 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:47:55,827 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:47:55,828 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:47:55,828 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:47:55,828 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:47:55,828 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:47:55,829 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:47:55,829 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:47:55,829 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:47:55,829 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:47:55,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:47:55,830 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:47:55,830 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:47:55,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:47:55,831 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:47:55,831 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:47:55,831 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:47:55,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:47:55,832 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:47:55,832 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:47:55,888 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:47:55,908 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:47:55,913 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:47:55,915 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:47:55,915 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:47:55,916 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/mod4.c [2019-09-20 13:47:55,997 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c183b123c/8e66cb7e475c464bb19ceaa9341b8927/FLAG7b944d7c4 [2019-09-20 13:47:56,450 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:47:56,451 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/mod4.c [2019-09-20 13:47:56,457 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c183b123c/8e66cb7e475c464bb19ceaa9341b8927/FLAG7b944d7c4 [2019-09-20 13:47:56,817 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c183b123c/8e66cb7e475c464bb19ceaa9341b8927 [2019-09-20 13:47:56,825 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:47:56,827 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:47:56,828 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:47:56,828 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:47:56,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:47:56,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:47:56" (1/1) ... [2019-09-20 13:47:56,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@95249a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:56, skipping insertion in model container [2019-09-20 13:47:56,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:47:56" (1/1) ... [2019-09-20 13:47:56,845 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:47:56,862 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:47:57,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:47:57,051 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:47:57,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:47:57,077 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:47:57,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:57 WrapperNode [2019-09-20 13:47:57,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:47:57,079 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:47:57,079 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:47:57,079 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:47:57,197 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:57" (1/1) ... [2019-09-20 13:47:57,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:57" (1/1) ... [2019-09-20 13:47:57,206 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:57" (1/1) ... [2019-09-20 13:47:57,206 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:57" (1/1) ... [2019-09-20 13:47:57,210 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:57" (1/1) ... [2019-09-20 13:47:57,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:57" (1/1) ... [2019-09-20 13:47:57,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:57" (1/1) ... [2019-09-20 13:47:57,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:47:57,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:47:57,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:47:57,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:47:57,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:57" (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 13:47:57,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:47:57,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:47:57,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 13:47:57,278 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:47:57,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:47:57,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:47:57,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 13:47:57,278 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:47:57,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:47:57,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:47:57,428 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:47:57,428 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 13:47:57,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:47:57 BoogieIcfgContainer [2019-09-20 13:47:57,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:47:57,431 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-20 13:47:57,431 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-20 13:47:57,431 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-20 13:47:57,432 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:47:57" (1/1) ... [2019-09-20 13:47:57,456 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:47:57,539 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-20 13:47:59,360 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-20 13:47:59,392 INFO L272 AbstractInterpreter]: Visited 21 different actions 126 times. Merged at 6 different actions 42 times. Widened at 1 different actions 3 times. Performed 149 root evaluator evaluations with a maximum evaluation depth of 13. Performed 149 inverse root evaluator evaluations with a maximum inverse evaluation depth of 13. Found 8 fixpoints after 2 different actions. Largest state had 3 variables. [2019-09-20 13:47:59,394 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-20 13:47:59,399 INFO L168 Benchmark]: Toolchain (without parser) took 2568.83 ms. Allocated memory was 138.4 MB in the beginning and 325.6 MB in the end (delta: 187.2 MB). Free memory was 85.5 MB in the beginning and 264.6 MB in the end (delta: -179.0 MB). Peak memory consumption was 8.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:59,400 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 104.3 MB in the beginning and 104.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:47:59,401 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.92 ms. Allocated memory is still 138.4 MB. Free memory was 85.3 MB in the beginning and 76.2 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:59,404 INFO L168 Benchmark]: Boogie Preprocessor took 138.30 ms. Allocated memory was 138.4 MB in the beginning and 199.2 MB in the end (delta: 60.8 MB). Free memory was 76.2 MB in the beginning and 176.7 MB in the end (delta: -100.5 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:59,406 INFO L168 Benchmark]: RCFGBuilder took 212.68 ms. Allocated memory is still 199.2 MB. Free memory was 176.7 MB in the beginning and 166.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:59,408 INFO L168 Benchmark]: Abstract Interpretation took 1963.26 ms. Allocated memory was 199.2 MB in the beginning and 325.6 MB in the end (delta: 126.4 MB). Free memory was 166.0 MB in the beginning and 264.6 MB in the end (delta: -98.6 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:59,418 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 104.3 MB in the beginning and 104.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 250.92 ms. Allocated memory is still 138.4 MB. Free memory was 85.3 MB in the beginning and 76.2 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 138.30 ms. Allocated memory was 138.4 MB in the beginning and 199.2 MB in the end (delta: 60.8 MB). Free memory was 76.2 MB in the beginning and 176.7 MB in the end (delta: -100.5 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 212.68 ms. Allocated memory is still 199.2 MB. Free memory was 176.7 MB in the beginning and 166.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 1963.26 ms. Allocated memory was 199.2 MB in the beginning and 325.6 MB in the end (delta: 126.4 MB). Free memory was 166.0 MB in the beginning and 264.6 MB in the end (delta: -98.6 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 5]: 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] unsigned int x = 0; [L11] COND FALSE !(__VERIFIER_nondet_int()) [L14] CALL __VERIFIER_assert(!(x % 4)) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...