/usr/bin/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/loop-new/half.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 06:58:02,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 06:58:02,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 06:58:02,174 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 06:58:02,174 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 06:58:02,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 06:58:02,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 06:58:02,179 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 06:58:02,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 06:58:02,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 06:58:02,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 06:58:02,188 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 06:58:02,189 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 06:58:02,191 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 06:58:02,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 06:58:02,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 06:58:02,198 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 06:58:02,200 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 06:58:02,202 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 06:58:02,207 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 06:58:02,211 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 06:58:02,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 06:58:02,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 06:58:02,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 06:58:02,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 06:58:02,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 06:58:02,223 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 06:58:02,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 06:58:02,224 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 [2019-11-07 06:58:02,238 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 06:58:02,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 06:58:02,239 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 06:58:02,243 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 06:58:02,243 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 06:58:02,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 06:58:02,244 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 06:58:02,244 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 06:58:02,244 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 06:58:02,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 06:58:02,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 06:58:02,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 06:58:02,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 06:58:02,245 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 06:58:02,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 06:58:02,245 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 06:58:02,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 06:58:02,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 06:58:02,246 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 06:58:02,246 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 06:58:02,246 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 06:58:02,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 06:58:02,247 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 06:58:02,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 06:58:02,247 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 06:58:02,247 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 06:58:02,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 06:58:02,248 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 06:58:02,248 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain [2019-11-07 06:58:02,532 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 06:58:02,545 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 06:58:02,548 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 06:58:02,550 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 06:58:02,550 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 06:58:02,551 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/half.i [2019-11-07 06:58:02,626 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b646032bc/ba831391ce8d4efc947773611e848aaf/FLAG6f23e83f0 [2019-11-07 06:58:03,121 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 06:58:03,121 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/half.i [2019-11-07 06:58:03,128 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b646032bc/ba831391ce8d4efc947773611e848aaf/FLAG6f23e83f0 [2019-11-07 06:58:03,533 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b646032bc/ba831391ce8d4efc947773611e848aaf [2019-11-07 06:58:03,541 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 06:58:03,543 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 06:58:03,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 06:58:03,544 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 06:58:03,547 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 06:58:03,548 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:58:03" (1/1) ... [2019-11-07 06:58:03,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bb42ce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:03, skipping insertion in model container [2019-11-07 06:58:03,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:58:03" (1/1) ... [2019-11-07 06:58:03,559 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 06:58:03,577 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 06:58:03,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 06:58:03,731 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 06:58:03,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 06:58:03,762 INFO L192 MainTranslator]: Completed translation [2019-11-07 06:58:03,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:03 WrapperNode [2019-11-07 06:58:03,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 06:58:03,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 06:58:03,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 06:58:03,763 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 06:58:03,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:03" (1/1) ... [2019-11-07 06:58:03,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:03" (1/1) ... [2019-11-07 06:58:03,869 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:03" (1/1) ... [2019-11-07 06:58:03,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:03" (1/1) ... [2019-11-07 06:58:03,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:03" (1/1) ... [2019-11-07 06:58:03,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:03" (1/1) ... [2019-11-07 06:58:03,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:03" (1/1) ... [2019-11-07 06:58:03,886 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 06:58:03,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 06:58:03,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 06:58:03,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 06:58:03,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:03" (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 [2019-11-07 06:58:03,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 06:58:03,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 06:58:03,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-07 06:58:03,947 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 06:58:03,947 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 06:58:03,947 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-07 06:58:03,947 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-07 06:58:03,947 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 06:58:03,947 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 06:58:03,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 06:58:03,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 06:58:04,142 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 06:58:04,143 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 06:58:04,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:58:04 BoogieIcfgContainer [2019-11-07 06:58:04,144 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 06:58:04,145 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-11-07 06:58:04,145 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-11-07 06:58:04,145 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-11-07 06:58:04,146 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:58:04" (1/1) ... [2019-11-07 06:58:04,212 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-07 06:58:04,334 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-11-07 06:58:04,831 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-11-07 06:58:04,863 INFO L272 AbstractInterpreter]: Visited 25 different actions 133 times. Merged at 8 different actions 48 times. Widened at 1 different actions 4 times. Performed 182 root evaluator evaluations with a maximum evaluation depth of 10. Performed 182 inverse root evaluator evaluations with a maximum inverse evaluation depth of 10. Found 15 fixpoints after 4 different actions. Largest state had 7 variables. [2019-11-07 06:58:04,864 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-11-07 06:58:04,874 INFO L168 Benchmark]: Toolchain (without parser) took 1322.71 ms. Allocated memory was 137.9 MB in the beginning and 231.7 MB in the end (delta: 93.8 MB). Free memory was 102.2 MB in the beginning and 196.4 MB in the end (delta: -94.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-11-07 06:58:04,878 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 06:58:04,880 INFO L168 Benchmark]: CACSL2BoogieTranslator took 218.65 ms. Allocated memory is still 137.9 MB. Free memory was 102.0 MB in the beginning and 92.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-11-07 06:58:04,884 INFO L168 Benchmark]: Boogie Preprocessor took 123.73 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 92.6 MB in the beginning and 179.1 MB in the end (delta: -86.5 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2019-11-07 06:58:04,886 INFO L168 Benchmark]: RCFGBuilder took 257.41 ms. Allocated memory is still 200.8 MB. Free memory was 179.1 MB in the beginning and 167.7 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2019-11-07 06:58:04,887 INFO L168 Benchmark]: Abstract Interpretation took 718.93 ms. Allocated memory was 200.8 MB in the beginning and 231.7 MB in the end (delta: 30.9 MB). Free memory was 167.0 MB in the beginning and 196.4 MB in the end (delta: -29.4 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2019-11-07 06:58:04,895 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 137.9 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 218.65 ms. Allocated memory is still 137.9 MB. Free memory was 102.0 MB in the beginning and 92.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.73 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 92.6 MB in the beginning and 179.1 MB in the end (delta: -86.5 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 257.41 ms. Allocated memory is still 200.8 MB. Free memory was 179.1 MB in the beginning and 167.7 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 718.93 ms. Allocated memory was 200.8 MB in the beginning and 231.7 MB in the end (delta: 30.9 MB). Free memory was 167.0 MB in the beginning and 196.4 MB in the end (delta: -29.4 MB). Peak memory consumption was 1.5 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: [L11] int i = 0; [L12] int n = 0; [L13] int k = __VERIFIER_nondet_int(); [L14] COND FALSE !(!(k <= 1000000 && k >= -1000000)) [L15] i = 0 [L15] COND FALSE !(i < 2*k) [L20] CALL __VERIFIER_assert(k < 0 || n == k) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...