/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/nla-digbench/lcm2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 06:58:49,416 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 06:58:49,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 06:58:49,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 06:58:49,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 06:58:49,433 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 06:58:49,434 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 06:58:49,436 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 06:58:49,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 06:58:49,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 06:58:49,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 06:58:49,441 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 06:58:49,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 06:58:49,442 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 06:58:49,443 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 06:58:49,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 06:58:49,445 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 06:58:49,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 06:58:49,448 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 06:58:49,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 06:58:49,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 06:58:49,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 06:58:49,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 06:58:49,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 06:58:49,457 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 06:58:49,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 06:58:49,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 06:58:49,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 06:58:49,470 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 06:58:49,487 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 06:58:49,487 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 06:58:49,488 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 06:58:49,489 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 06:58:49,489 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 06:58:49,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 06:58:49,489 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 06:58:49,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 06:58:49,490 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 06:58:49,490 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 06:58:49,490 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 06:58:49,490 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 06:58:49,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 06:58:49,491 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 06:58:49,491 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 06:58:49,491 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 06:58:49,491 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 06:58:49,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 06:58:49,492 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 06:58:49,492 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 06:58:49,492 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 06:58:49,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 06:58:49,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 06:58:49,493 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 06:58:49,493 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 06:58:49,493 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 06:58:49,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 06:58:49,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 06:58:49,494 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 06:58:49,817 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 06:58:49,835 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 06:58:49,839 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 06:58:49,840 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 06:58:49,841 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 06:58:49,842 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/lcm2.c [2019-11-07 06:58:49,910 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64bd3f0ba/0726d0f559704855b841e5c7e45b5609/FLAG661cdfd95 [2019-11-07 06:58:50,371 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 06:58:50,373 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/lcm2.c [2019-11-07 06:58:50,380 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64bd3f0ba/0726d0f559704855b841e5c7e45b5609/FLAG661cdfd95 [2019-11-07 06:58:50,723 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64bd3f0ba/0726d0f559704855b841e5c7e45b5609 [2019-11-07 06:58:50,733 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 06:58:50,735 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 06:58:50,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 06:58:50,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 06:58:50,740 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 06:58:50,741 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:58:50" (1/1) ... [2019-11-07 06:58:50,744 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@446edcd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:50, skipping insertion in model container [2019-11-07 06:58:50,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:58:50" (1/1) ... [2019-11-07 06:58:50,752 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 06:58:50,770 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 06:58:50,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 06:58:50,947 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 06:58:50,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 06:58:50,982 INFO L192 MainTranslator]: Completed translation [2019-11-07 06:58:50,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:50 WrapperNode [2019-11-07 06:58:50,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 06:58:50,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 06:58:50,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 06:58:50,984 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 06:58:50,998 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:50" (1/1) ... [2019-11-07 06:58:50,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:50" (1/1) ... [2019-11-07 06:58:51,090 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:50" (1/1) ... [2019-11-07 06:58:51,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:50" (1/1) ... [2019-11-07 06:58:51,096 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:50" (1/1) ... [2019-11-07 06:58:51,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:50" (1/1) ... [2019-11-07 06:58:51,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:50" (1/1) ... [2019-11-07 06:58:51,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 06:58:51,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 06:58:51,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 06:58:51,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 06:58:51,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:50" (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 06:58:51,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 06:58:51,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 06:58:51,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-07 06:58:51,164 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 06:58:51,164 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 06:58:51,165 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 06:58:51,165 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-07 06:58:51,165 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-07 06:58:51,165 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 06:58:51,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 06:58:51,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 06:58:51,352 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 06:58:51,352 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 06:58:51,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:58:51 BoogieIcfgContainer [2019-11-07 06:58:51,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 06:58:51,360 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-11-07 06:58:51,360 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-11-07 06:58:51,360 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-11-07 06:58:51,361 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:58:51" (1/1) ... [2019-11-07 06:58:51,424 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-07 06:58:51,994 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-11-07 06:58:52,019 INFO L272 AbstractInterpreter]: Visited 26 different actions 266 times. Merged at 9 different actions 72 times. Widened at 2 different actions 3 times. Performed 363 root evaluator evaluations with a maximum evaluation depth of 8. Performed 363 inverse root evaluator evaluations with a maximum inverse evaluation depth of 8. Found 20 fixpoints after 3 different actions. Largest state had 9 variables. [2019-11-07 06:58:52,019 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-11-07 06:58:52,024 INFO L168 Benchmark]: Toolchain (without parser) took 1286.39 ms. Allocated memory was 146.8 MB in the beginning and 202.4 MB in the end (delta: 55.6 MB). Free memory was 105.0 MB in the beginning and 122.1 MB in the end (delta: -17.1 MB). Peak memory consumption was 38.5 MB. Max. memory is 7.1 GB. [2019-11-07 06:58:52,026 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 146.8 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 06:58:52,028 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.15 ms. Allocated memory is still 146.8 MB. Free memory was 104.8 MB in the beginning and 95.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-11-07 06:58:52,030 INFO L168 Benchmark]: Boogie Preprocessor took 120.93 ms. Allocated memory was 146.8 MB in the beginning and 202.4 MB in the end (delta: 55.6 MB). Free memory was 95.2 MB in the beginning and 181.4 MB in the end (delta: -86.2 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-11-07 06:58:52,032 INFO L168 Benchmark]: RCFGBuilder took 254.26 ms. Allocated memory is still 202.4 MB. Free memory was 180.7 MB in the beginning and 169.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2019-11-07 06:58:52,034 INFO L168 Benchmark]: Abstract Interpretation took 659.72 ms. Allocated memory is still 202.4 MB. Free memory was 169.0 MB in the beginning and 122.1 MB in the end (delta: 46.9 MB). Peak memory consumption was 46.9 MB. Max. memory is 7.1 GB. [2019-11-07 06:58:52,045 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 146.8 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 247.15 ms. Allocated memory is still 146.8 MB. Free memory was 104.8 MB in the beginning and 95.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.93 ms. Allocated memory was 146.8 MB in the beginning and 202.4 MB in the end (delta: 55.6 MB). Free memory was 95.2 MB in the beginning and 181.4 MB in the end (delta: -86.2 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 254.26 ms. Allocated memory is still 202.4 MB. Free memory was 180.7 MB in the beginning and 169.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 659.72 ms. Allocated memory is still 202.4 MB. Free memory was 169.0 MB in the beginning and 122.1 MB in the end (delta: 46.9 MB). Peak memory consumption was 46.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 8]: 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: [L14] int a, b; [L15] int x, y, u, v; [L16] a = __VERIFIER_nondet_int() [L17] b = __VERIFIER_nondet_int() [L21] x = a [L22] y = b [L23] u = b [L24] v = a [L26] COND TRUE 1 [L27] CALL __VERIFIER_assert(x*u + y*v == 2*a*b) [L6] COND TRUE !(cond) [L8] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...