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/while_infinite_loop_4.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:27:33,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:27:33,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:27:33,154 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-16 17:27:33,172 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:27:33,173 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:27:33,174 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:27:33,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:27:33,176 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:27:33,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:27:33,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:27:33,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:27:33,181 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:27:33,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:27:33,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:27:33,185 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:27:33,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-16 17:27:33,205 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 [2019-09-16 17:27:33,231 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:27:33,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:27:33,232 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:27:33,232 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:27:33,233 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:27:33,233 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:27:33,233 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:27:33,234 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:27:33,234 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:27:33,234 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:27:33,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:27:33,236 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:27:33,236 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:27:33,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:27:33,237 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:27:33,237 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:27:33,237 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:27:33,237 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:27:33,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:27:33,238 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:27:33,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:27:33,239 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:27:33,239 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:27:33,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:27:33,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:27:33,240 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:27:33,240 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:27:33,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:27:33,240 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:27:33,240 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:27:33,294 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:27:33,311 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:27:33,314 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:27:33,316 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:27:33,316 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:27:33,317 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/while_infinite_loop_4.c [2019-09-16 17:27:33,376 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/658a7661e/cf05e3a1dd8b436cbd0cc7fcd932abbd/FLAG361680bd8 [2019-09-16 17:27:33,796 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:27:33,797 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/while_infinite_loop_4.c [2019-09-16 17:27:33,803 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/658a7661e/cf05e3a1dd8b436cbd0cc7fcd932abbd/FLAG361680bd8 [2019-09-16 17:27:34,199 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/658a7661e/cf05e3a1dd8b436cbd0cc7fcd932abbd [2019-09-16 17:27:34,208 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:27:34,209 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:27:34,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:27:34,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:27:34,214 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:27:34,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:27:34" (1/1) ... [2019-09-16 17:27:34,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50c75ddc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:27:34, skipping insertion in model container [2019-09-16 17:27:34,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:27:34" (1/1) ... [2019-09-16 17:27:34,227 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:27:34,241 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:27:34,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:27:34,426 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:27:34,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:27:34,451 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:27:34,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:27:34 WrapperNode [2019-09-16 17:27:34,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:27:34,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:27:34,453 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:27:34,453 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:27:34,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:27:34" (1/1) ... [2019-09-16 17:27:34,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:27:34" (1/1) ... [2019-09-16 17:27:34,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:27:34" (1/1) ... [2019-09-16 17:27:34,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:27:34" (1/1) ... [2019-09-16 17:27:34,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:27:34" (1/1) ... [2019-09-16 17:27:34,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:27:34" (1/1) ... [2019-09-16 17:27:34,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:27:34" (1/1) ... [2019-09-16 17:27:34,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:27:34,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:27:34,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:27:34,569 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:27:34,570 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:27:34" (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 [2019-09-16 17:27:34,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:27:34,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:27:34,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-16 17:27:34,626 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-09-16 17:27:34,627 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:27:34,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:27:34,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-16 17:27:34,627 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-09-16 17:27:34,627 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:27:34,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:27:34,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:27:34,753 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:27:34,754 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-09-16 17:27:34,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:27:34 BoogieIcfgContainer [2019-09-16 17:27:34,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:27:34,756 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-16 17:27:34,756 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-16 17:27:34,757 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-16 17:27:34,757 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:27:34" (1/1) ... [2019-09-16 17:27:34,777 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-16 17:27:34,856 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-16 17:27:34,872 INFO L272 AbstractInterpreter]: Visited 20 different actions 20 times. Never merged. Never widened. Performed 15 root evaluator evaluations with a maximum evaluation depth of 4. Performed 15 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Never found a fixpoint. Largest state had 4 variables. [2019-09-16 17:27:34,873 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-16 17:27:34,875 INFO L168 Benchmark]: Toolchain (without parser) took 664.78 ms. Allocated memory was 139.5 MB in the beginning and 198.7 MB in the end (delta: 59.2 MB). Free memory was 87.2 MB in the beginning and 159.1 MB in the end (delta: -72.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-16 17:27:34,876 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 105.3 MB in the beginning and 105.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:27:34,878 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.19 ms. Allocated memory is still 139.5 MB. Free memory was 86.7 MB in the beginning and 77.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-09-16 17:27:34,879 INFO L168 Benchmark]: Boogie Preprocessor took 116.12 ms. Allocated memory was 139.5 MB in the beginning and 198.7 MB in the end (delta: 59.2 MB). Free memory was 77.6 MB in the beginning and 176.2 MB in the end (delta: -98.6 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-09-16 17:27:34,880 INFO L168 Benchmark]: RCFGBuilder took 186.61 ms. Allocated memory is still 198.7 MB. Free memory was 176.2 MB in the beginning and 165.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2019-09-16 17:27:34,881 INFO L168 Benchmark]: Abstract Interpretation took 116.49 ms. Allocated memory is still 198.7 MB. Free memory was 165.5 MB in the beginning and 159.1 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 7.1 GB. [2019-09-16 17:27:34,885 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 139.5 MB. Free memory was 105.3 MB in the beginning and 105.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 242.19 ms. Allocated memory is still 139.5 MB. Free memory was 86.7 MB in the beginning and 77.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.12 ms. Allocated memory was 139.5 MB in the beginning and 198.7 MB in the end (delta: 59.2 MB). Free memory was 77.6 MB in the beginning and 176.2 MB in the end (delta: -98.6 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 186.61 ms. Allocated memory is still 198.7 MB. Free memory was 176.2 MB in the beginning and 165.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 116.49 ms. Allocated memory is still 198.7 MB. Free memory was 165.5 MB in the beginning and 159.1 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 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] int x=0; [L24] COND TRUE 1 [L26] CALL eval() [L14] COND TRUE 1 [L15] x=1 [L26] RET eval() [L27] CALL __VERIFIER_assert(x==0) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...