/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/egcd2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 06:58:42,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 06:58:42,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 06:58:42,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 06:58:42,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 06:58:42,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 06:58:42,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 06:58:42,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 06:58:42,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 06:58:42,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 06:58:42,948 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 06:58:42,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 06:58:42,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 06:58:42,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 06:58:42,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 06:58:42,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 06:58:42,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 06:58:42,954 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 06:58:42,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 06:58:42,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 06:58:42,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 06:58:42,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 06:58:42,961 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 06:58:42,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 06:58:42,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 06:58:42,980 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 06:58:42,981 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 06:58:42,982 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 06:58:42,983 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 06:58:42,997 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 06:58:42,997 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 06:58:42,998 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 06:58:42,998 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 06:58:42,999 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 06:58:42,999 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 06:58:42,999 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 06:58:42,999 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 06:58:42,999 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 06:58:43,000 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 06:58:43,000 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 06:58:43,000 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 06:58:43,000 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 06:58:43,000 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 06:58:43,001 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 06:58:43,001 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 06:58:43,001 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 06:58:43,001 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 06:58:43,001 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 06:58:43,002 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 06:58:43,002 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 06:58:43,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 06:58:43,002 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 06:58:43,002 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 06:58:43,003 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 06:58:43,003 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 06:58:43,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 06:58:43,003 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 06:58:43,003 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 06:58:43,319 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 06:58:43,334 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 06:58:43,338 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 06:58:43,340 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 06:58:43,340 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 06:58:43,342 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/egcd2.c [2019-11-07 06:58:43,416 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06d9c1334/10a1d447651140509015b19401848b9d/FLAG678e598f5 [2019-11-07 06:58:43,895 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 06:58:43,900 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/egcd2.c [2019-11-07 06:58:43,909 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06d9c1334/10a1d447651140509015b19401848b9d/FLAG678e598f5 [2019-11-07 06:58:44,265 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06d9c1334/10a1d447651140509015b19401848b9d [2019-11-07 06:58:44,275 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 06:58:44,279 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 06:58:44,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 06:58:44,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 06:58:44,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 06:58:44,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:58:44" (1/1) ... [2019-11-07 06:58:44,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3154e86d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:44, skipping insertion in model container [2019-11-07 06:58:44,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:58:44" (1/1) ... [2019-11-07 06:58:44,297 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 06:58:44,314 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 06:58:44,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 06:58:44,498 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 06:58:44,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 06:58:44,530 INFO L192 MainTranslator]: Completed translation [2019-11-07 06:58:44,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:44 WrapperNode [2019-11-07 06:58:44,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 06:58:44,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 06:58:44,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 06:58:44,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 06:58:44,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:44" (1/1) ... [2019-11-07 06:58:44,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:44" (1/1) ... [2019-11-07 06:58:44,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:44" (1/1) ... [2019-11-07 06:58:44,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:44" (1/1) ... [2019-11-07 06:58:44,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:44" (1/1) ... [2019-11-07 06:58:44,655 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:44" (1/1) ... [2019-11-07 06:58:44,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:44" (1/1) ... [2019-11-07 06:58:44,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 06:58:44,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 06:58:44,664 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 06:58:44,664 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 06:58:44,665 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:44" (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 06:58:44,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 06:58:44,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 06:58:44,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-07 06:58:44,724 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 06:58:44,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 06:58:44,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 06:58:44,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-07 06:58:44,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-07 06:58:44,725 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 06:58:44,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 06:58:44,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 06:58:44,929 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 06:58:44,929 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-11-07 06:58:44,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:58:44 BoogieIcfgContainer [2019-11-07 06:58:44,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 06:58:44,931 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-11-07 06:58:44,931 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-11-07 06:58:44,932 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-11-07 06:58:44,933 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:58:44" (1/1) ... [2019-11-07 06:58:44,990 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-07 06:58:45,204 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-11-07 06:58:45,229 INFO L272 AbstractInterpreter]: Visited 23 different actions 29 times. Never merged. Never widened. Performed 65 root evaluator evaluations with a maximum evaluation depth of 8. Performed 65 inverse root evaluator evaluations with a maximum inverse evaluation depth of 8. Never found a fixpoint. Largest state had 14 variables. [2019-11-07 06:58:45,229 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-11-07 06:58:45,232 INFO L168 Benchmark]: Toolchain (without parser) took 954.21 ms. Allocated memory was 140.5 MB in the beginning and 200.8 MB in the end (delta: 60.3 MB). Free memory was 103.1 MB in the beginning and 154.9 MB in the end (delta: -51.8 MB). Peak memory consumption was 8.5 MB. Max. memory is 7.1 GB. [2019-11-07 06:58:45,233 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 06:58:45,234 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.38 ms. Allocated memory is still 140.5 MB. Free memory was 102.9 MB in the beginning and 93.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-11-07 06:58:45,236 INFO L168 Benchmark]: Boogie Preprocessor took 127.94 ms. Allocated memory was 140.5 MB in the beginning and 200.8 MB in the end (delta: 60.3 MB). Free memory was 93.0 MB in the beginning and 179.1 MB in the end (delta: -86.1 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2019-11-07 06:58:45,237 INFO L168 Benchmark]: RCFGBuilder took 266.84 ms. Allocated memory is still 200.8 MB. Free memory was 179.1 MB in the beginning and 165.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2019-11-07 06:58:45,238 INFO L168 Benchmark]: Abstract Interpretation took 298.23 ms. Allocated memory is still 200.8 MB. Free memory was 165.7 MB in the beginning and 154.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2019-11-07 06:58:45,242 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 250.38 ms. Allocated memory is still 140.5 MB. Free memory was 102.9 MB in the beginning and 93.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.94 ms. Allocated memory was 140.5 MB in the beginning and 200.8 MB in the end (delta: 60.3 MB). Free memory was 93.0 MB in the beginning and 179.1 MB in the end (delta: -86.1 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 266.84 ms. Allocated memory is still 200.8 MB. Free memory was 179.1 MB in the beginning and 165.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 298.23 ms. Allocated memory is still 200.8 MB. Free memory was 165.7 MB in the beginning and 154.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 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 x, y; [L15] int a, b, p, q, r, s, c, k; [L16] x = __VERIFIER_nondet_int() [L17] y = __VERIFIER_nondet_int() [L21] a = x [L22] b = y [L23] p = 1 [L24] q = 0 [L25] r = 0 [L26] s = 1 [L27] c = 0 [L28] k = 0 [L29] COND TRUE 1 [L30] COND TRUE !(b != 0) [L59] CALL __VERIFIER_assert(q*x + s*y == 0) [L6] COND TRUE !(cond) [L8] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...