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-invariants/mod4.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 04:44:04,243 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 04:44:04,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 04:44:04,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 04:44:04,262 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 04:44:04,263 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 04:44:04,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 04:44:04,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 04:44:04,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 04:44:04,269 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 04:44:04,270 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 04:44:04,272 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 04:44:04,272 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 04:44:04,273 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 04:44:04,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 04:44:04,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 04:44:04,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 04:44:04,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 04:44:04,278 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 04:44:04,281 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 04:44:04,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 04:44:04,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 04:44:04,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 04:44:04,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 04:44:04,293 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 04:44:04,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 04:44:04,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 04:44:04,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 04:44:04,310 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 [2019-10-15 04:44:04,329 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 04:44:04,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 04:44:04,331 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 04:44:04,331 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 04:44:04,332 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 04:44:04,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 04:44:04,332 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 04:44:04,332 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 04:44:04,332 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 04:44:04,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 04:44:04,333 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 04:44:04,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 04:44:04,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 04:44:04,334 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 04:44:04,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 04:44:04,335 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 04:44:04,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 04:44:04,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 04:44:04,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 04:44:04,335 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 04:44:04,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 04:44:04,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 04:44:04,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 04:44:04,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 04:44:04,336 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 04:44:04,337 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 04:44:04,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 04:44:04,337 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 04:44:04,337 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain [2019-10-15 04:44:04,600 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 04:44:04,617 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 04:44:04,620 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 04:44:04,622 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 04:44:04,622 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 04:44:04,625 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/mod4.c [2019-10-15 04:44:04,709 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e925cd306/1b5acc650fd44d5a816f72e925f6e27e/FLAG9c6d6ed0b [2019-10-15 04:44:05,123 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 04:44:05,124 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/mod4.c [2019-10-15 04:44:05,130 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e925cd306/1b5acc650fd44d5a816f72e925f6e27e/FLAG9c6d6ed0b [2019-10-15 04:44:05,521 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e925cd306/1b5acc650fd44d5a816f72e925f6e27e [2019-10-15 04:44:05,531 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 04:44:05,533 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 04:44:05,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 04:44:05,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 04:44:05,538 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 04:44:05,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:44:05" (1/1) ... [2019-10-15 04:44:05,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35b66671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:05, skipping insertion in model container [2019-10-15 04:44:05,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:44:05" (1/1) ... [2019-10-15 04:44:05,549 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 04:44:05,566 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 04:44:05,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 04:44:05,733 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 04:44:05,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 04:44:05,759 INFO L192 MainTranslator]: Completed translation [2019-10-15 04:44:05,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:05 WrapperNode [2019-10-15 04:44:05,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 04:44:05,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 04:44:05,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 04:44:05,764 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 04:44:05,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:05" (1/1) ... [2019-10-15 04:44:05,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:05" (1/1) ... [2019-10-15 04:44:05,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:05" (1/1) ... [2019-10-15 04:44:05,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:05" (1/1) ... [2019-10-15 04:44:05,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:05" (1/1) ... [2019-10-15 04:44:05,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:05" (1/1) ... [2019-10-15 04:44:05,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:05" (1/1) ... [2019-10-15 04:44:05,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 04:44:05,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 04:44:05,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 04:44:05,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 04:44:05,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:05" (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 [2019-10-15 04:44:05,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 04:44:05,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 04:44:05,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-15 04:44:05,929 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 04:44:05,929 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 04:44:05,929 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 04:44:05,929 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-15 04:44:05,930 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 04:44:05,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 04:44:05,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 04:44:06,094 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 04:44:06,094 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 04:44:06,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:44:06 BoogieIcfgContainer [2019-10-15 04:44:06,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 04:44:06,097 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-10-15 04:44:06,097 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-10-15 04:44:06,097 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-10-15 04:44:06,098 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:44:06" (1/1) ... [2019-10-15 04:44:06,123 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 04:44:06,200 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-10-15 04:44:07,805 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-10-15 04:44:07,833 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. [2019-10-15 04:44:07,833 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-10-15 04:44:07,838 INFO L168 Benchmark]: Toolchain (without parser) took 2302.25 ms. Allocated memory was 145.2 MB in the beginning and 316.1 MB in the end (delta: 170.9 MB). Free memory was 101.7 MB in the beginning and 291.9 MB in the end (delta: -190.2 MB). Peak memory consumption was 140.1 MB. Max. memory is 7.1 GB. [2019-10-15 04:44:07,840 INFO L168 Benchmark]: CDTParser took 1.58 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 04:44:07,841 INFO L168 Benchmark]: CACSL2BoogieTranslator took 229.12 ms. Allocated memory is still 145.2 MB. Free memory was 101.5 MB in the beginning and 92.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-10-15 04:44:07,843 INFO L168 Benchmark]: Boogie Preprocessor took 114.97 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 92.3 MB in the beginning and 182.7 MB in the end (delta: -90.5 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2019-10-15 04:44:07,845 INFO L168 Benchmark]: RCFGBuilder took 217.43 ms. Allocated memory is still 203.4 MB. Free memory was 182.1 MB in the beginning and 171.8 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-10-15 04:44:07,846 INFO L168 Benchmark]: Abstract Interpretation took 1736.81 ms. Allocated memory was 203.4 MB in the beginning and 316.1 MB in the end (delta: 112.7 MB). Free memory was 171.8 MB in the beginning and 291.9 MB in the end (delta: -120.1 MB). Peak memory consumption was 152.0 MB. Max. memory is 7.1 GB. [2019-10-15 04:44:07,856 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.58 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 229.12 ms. Allocated memory is still 145.2 MB. Free memory was 101.5 MB in the beginning and 92.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.97 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 92.3 MB in the beginning and 182.7 MB in the end (delta: -90.5 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 217.43 ms. Allocated memory is still 203.4 MB. Free memory was 182.1 MB in the beginning and 171.8 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 1736.81 ms. Allocated memory was 203.4 MB in the beginning and 316.1 MB in the end (delta: 112.7 MB). Free memory was 171.8 MB in the beginning and 291.9 MB in the end (delta: -120.1 MB). Peak memory consumption was 152.0 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...