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/cohendiv.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 04:44:45,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 04:44:45,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 04:44:45,930 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-10-15 04:44:45,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 04:44:45,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 04:44:45,959 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 04:44:45,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 04:44:45,962 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 04:44:45,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 04:44:45,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 04:44:45,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 04:44:45,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 04:44:45,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 04:44:45,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 04:44:45,980 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 04:44:45,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 04:44:45,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 04:44:45,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 04:44:45,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 04:44:45,996 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 04:44:46,028 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 04:44:46,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 04:44:46,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 04:44:46,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 04:44:46,030 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 04:44:46,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 04:44:46,031 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 04:44:46,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 04:44:46,031 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 04:44:46,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 04:44:46,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 04:44:46,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 04:44:46,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 04:44:46,032 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 04:44:46,036 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 04:44:46,036 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 04:44:46,037 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 04:44:46,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 04:44:46,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 04:44:46,037 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 04:44:46,037 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 04:44:46,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 04:44:46,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 04:44:46,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 04:44:46,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 04:44:46,039 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 04:44:46,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 04:44:46,040 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 04:44:46,040 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 04:44:46,302 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 04:44:46,316 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 04:44:46,320 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 04:44:46,321 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 04:44:46,322 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 04:44:46,323 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/cohendiv.c [2019-10-15 04:44:46,398 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d68e31a01/262edf3aeed94371a650e3296ccc580f/FLAG5b324dc80 [2019-10-15 04:44:46,876 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 04:44:46,877 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/cohendiv.c [2019-10-15 04:44:46,884 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d68e31a01/262edf3aeed94371a650e3296ccc580f/FLAG5b324dc80 [2019-10-15 04:44:47,249 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d68e31a01/262edf3aeed94371a650e3296ccc580f [2019-10-15 04:44:47,257 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 04:44:47,259 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 04:44:47,260 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 04:44:47,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 04:44:47,264 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 04:44:47,265 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:44:47" (1/1) ... [2019-10-15 04:44:47,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f759b75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:47, skipping insertion in model container [2019-10-15 04:44:47,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:44:47" (1/1) ... [2019-10-15 04:44:47,277 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 04:44:47,298 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 04:44:47,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 04:44:47,466 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 04:44:47,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 04:44:47,516 INFO L192 MainTranslator]: Completed translation [2019-10-15 04:44:47,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:47 WrapperNode [2019-10-15 04:44:47,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 04:44:47,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 04:44:47,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 04:44:47,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 04:44:47,606 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:47" (1/1) ... [2019-10-15 04:44:47,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:47" (1/1) ... [2019-10-15 04:44:47,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:47" (1/1) ... [2019-10-15 04:44:47,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:47" (1/1) ... [2019-10-15 04:44:47,617 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:47" (1/1) ... [2019-10-15 04:44:47,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:47" (1/1) ... [2019-10-15 04:44:47,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:47" (1/1) ... [2019-10-15 04:44:47,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 04:44:47,625 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 04:44:47,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 04:44:47,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 04:44:47,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:47" (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 04:44:47,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 04:44:47,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 04:44:47,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-15 04:44:47,673 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 04:44:47,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 04:44:47,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 04:44:47,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 04:44:47,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-15 04:44:47,674 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 04:44:47,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 04:44:47,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 04:44:47,877 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 04:44:47,877 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-15 04:44:47,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:44:47 BoogieIcfgContainer [2019-10-15 04:44:47,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 04:44:47,880 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-10-15 04:44:47,880 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-10-15 04:44:47,880 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-10-15 04:44:47,881 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:44:47" (1/1) ... [2019-10-15 04:44:47,932 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 04:44:48,075 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-10-15 04:44:48,096 INFO L272 AbstractInterpreter]: Visited 16 different actions 16 times. Never merged. Never widened. Performed 21 root evaluator evaluations with a maximum evaluation depth of 6. Performed 21 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 9 variables. [2019-10-15 04:44:48,096 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-10-15 04:44:48,099 INFO L168 Benchmark]: Toolchain (without parser) took 839.24 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 102.1 MB in the beginning and 160.7 MB in the end (delta: -58.7 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. [2019-10-15 04:44:48,100 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 138.9 MB. Free memory is still 120.5 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-15 04:44:48,101 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.36 ms. Allocated memory is still 138.9 MB. Free memory was 102.1 MB in the beginning and 92.2 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-10-15 04:44:48,103 INFO L168 Benchmark]: Boogie Preprocessor took 107.65 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 92.2 MB in the beginning and 181.1 MB in the end (delta: -88.9 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2019-10-15 04:44:48,104 INFO L168 Benchmark]: RCFGBuilder took 253.56 ms. Allocated memory is still 202.9 MB. Free memory was 181.1 MB in the beginning and 169.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2019-10-15 04:44:48,106 INFO L168 Benchmark]: Abstract Interpretation took 216.68 ms. Allocated memory is still 202.9 MB. Free memory was 168.4 MB in the beginning and 160.7 MB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 7.1 GB. [2019-10-15 04:44:48,111 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 138.9 MB. Free memory is still 120.5 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 257.36 ms. Allocated memory is still 138.9 MB. Free memory was 102.1 MB in the beginning and 92.2 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.65 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 92.2 MB in the beginning and 181.1 MB in the end (delta: -88.9 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 253.56 ms. Allocated memory is still 202.9 MB. Free memory was 181.1 MB in the beginning and 169.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 216.68 ms. Allocated memory is still 202.9 MB. Free memory was 168.4 MB in the beginning and 160.7 MB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 12]: 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: [L18] int x, y, q, r, a, b; [L20] x = __VERIFIER_nondet_int() [L21] y = __VERIFIER_nondet_int() [L25] q = 0 [L26] r = x [L27] a = 0 [L28] b = 0 [L30] COND TRUE 1 [L31] CALL __VERIFIER_assert(b == y*a) [L10] COND TRUE !(cond) [L12] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...