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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain -i ../../../trunk/examples/svcomp/ldv-regression/test20.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-14 00:37:08,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 00:37:08,730 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 00:37:08,749 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-10-14 00:37:08,824 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 00:37:08,838 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 00:37:08,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 00:37:08,840 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 00:37:08,840 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 00:37:08,840 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 00:37:08,840 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 00:37:08,841 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 00:37:08,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 00:37:08,841 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 00:37:08,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 00:37:08,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 00:37:08,842 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 00:37:08,842 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 00:37:08,842 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 00:37:08,842 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 00:37:08,843 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 00:37:08,843 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 00:37:08,843 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 00:37:08,843 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 00:37:08,843 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 00:37:08,844 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 00:37:08,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 00:37:08,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 00:37:08,844 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 00:37:08,845 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 00:37:08,845 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 00:37:08,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 00:37:08,845 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 00:37:08,845 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain [2019-10-14 00:37:09,148 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 00:37:09,167 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 00:37:09,170 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 00:37:09,172 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 00:37:09,172 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 00:37:09,173 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test20.c [2019-10-14 00:37:09,246 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f42f859ad/f9b854183d15417fac467a23fbd40047/FLAGd3e1fc268 [2019-10-14 00:37:09,687 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 00:37:09,688 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test20.c [2019-10-14 00:37:09,695 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f42f859ad/f9b854183d15417fac467a23fbd40047/FLAGd3e1fc268 [2019-10-14 00:37:10,068 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f42f859ad/f9b854183d15417fac467a23fbd40047 [2019-10-14 00:37:10,076 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 00:37:10,078 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 00:37:10,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 00:37:10,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 00:37:10,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 00:37:10,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:37:10" (1/1) ... [2019-10-14 00:37:10,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21ed8428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:37:10, skipping insertion in model container [2019-10-14 00:37:10,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:37:10" (1/1) ... [2019-10-14 00:37:10,095 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 00:37:10,110 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 00:37:10,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 00:37:10,262 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 00:37:10,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 00:37:10,299 INFO L192 MainTranslator]: Completed translation [2019-10-14 00:37:10,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:37:10 WrapperNode [2019-10-14 00:37:10,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 00:37:10,300 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 00:37:10,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 00:37:10,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 00:37:10,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:37:10" (1/1) ... [2019-10-14 00:37:10,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:37:10" (1/1) ... [2019-10-14 00:37:10,317 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:37:10" (1/1) ... [2019-10-14 00:37:10,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:37:10" (1/1) ... [2019-10-14 00:37:10,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:37:10" (1/1) ... [2019-10-14 00:37:10,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:37:10" (1/1) ... [2019-10-14 00:37:10,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:37:10" (1/1) ... [2019-10-14 00:37:10,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 00:37:10,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 00:37:10,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 00:37:10,327 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 00:37:10,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:37:10" (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 [2019-10-14 00:37:10,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 00:37:10,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 00:37:10,469 INFO L138 BoogieDeclarations]: Found implementation of procedure equal [2019-10-14 00:37:10,469 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 00:37:10,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 00:37:10,470 INFO L130 BoogieDeclarations]: Found specification of procedure equal [2019-10-14 00:37:10,470 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 00:37:10,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 00:37:10,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 00:37:10,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 00:37:10,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 00:37:10,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 00:37:10,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 00:37:10,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 00:37:10,703 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 00:37:10,704 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-14 00:37:10,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:37:10 BoogieIcfgContainer [2019-10-14 00:37:10,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 00:37:10,706 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-10-14 00:37:10,706 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-10-14 00:37:10,707 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-10-14 00:37:10,707 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:37:10" (1/1) ... [2019-10-14 00:37:10,758 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-14 00:37:10,824 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-14 00:37:10,831 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 13 root evaluator evaluations with a maximum evaluation depth of 0. Performed 13 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 20 variables. [2019-10-14 00:37:10,831 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-10-14 00:37:10,836 INFO L168 Benchmark]: Toolchain (without parser) took 755.16 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 104.6 MB in the beginning and 165.3 MB in the end (delta: -60.7 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2019-10-14 00:37:10,838 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-14 00:37:10,839 INFO L168 Benchmark]: CACSL2BoogieTranslator took 220.99 ms. Allocated memory is still 138.9 MB. Free memory was 104.2 MB in the beginning and 94.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-10-14 00:37:10,842 INFO L168 Benchmark]: Boogie Preprocessor took 26.04 ms. Allocated memory is still 138.9 MB. Free memory was 94.9 MB in the beginning and 93.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. [2019-10-14 00:37:10,845 INFO L168 Benchmark]: RCFGBuilder took 378.64 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 93.3 MB in the beginning and 170.9 MB in the end (delta: -77.6 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2019-10-14 00:37:10,846 INFO L168 Benchmark]: Abstract Interpretation took 125.13 ms. Allocated memory is still 203.4 MB. Free memory was 170.9 MB in the beginning and 166.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2019-10-14 00:37:10,857 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 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 220.99 ms. Allocated memory is still 138.9 MB. Free memory was 104.2 MB in the beginning and 94.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.04 ms. Allocated memory is still 138.9 MB. Free memory was 94.9 MB in the beginning and 93.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 378.64 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 93.3 MB in the beginning and 170.9 MB in the end (delta: -77.6 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 125.13 ms. Allocated memory is still 203.4 MB. Free memory was 170.9 MB in the beginning and 166.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - PositiveResult [Line: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location RESULT: Ultimate proved your program to be correct! Received shutdown request...