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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/nla-digbench/egcd2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 12:39:33,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 12:39:33,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 12:39:33,357 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 12:39:33,357 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 12:39:33,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 12:39:33,360 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 12:39:33,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 12:39:33,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 12:39:33,364 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 12:39:33,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 12:39:33,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 12:39:33,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 12:39:33,368 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 12:39:33,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 12:39:33,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 12:39:33,371 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 12:39:33,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 12:39:33,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 12:39:33,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 12:39:33,378 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 12:39:33,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 12:39:33,380 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 12:39:33,381 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 12:39:33,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-03 12:39:33,388 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 12:39:33,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 12:39:33,389 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 12:39:33,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 12:39:33,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 12:39:33,392 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 12:39:33,392 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 12:39:33,393 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 12:39:33,393 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 12:39:33,394 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 12:39:33,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 12:39:33,395 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 12:39:33,411 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 12:39:33,411 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 12:39:33,412 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 12:39:33,412 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 12:39:33,413 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 12:39:33,413 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 12:39:33,413 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 12:39:33,413 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 12:39:33,413 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 12:39:33,414 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 12:39:33,414 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 12:39:33,414 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 12:39:33,415 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 12:39:33,415 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 12:39:33,415 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 12:39:33,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 12:39:33,415 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 12:39:33,416 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 12:39:33,416 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 12:39:33,416 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 12:39:33,416 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 12:39:33,416 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 12:39:33,417 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 12:39:33,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 12:39:33,417 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 12:39:33,417 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 12:39:33,417 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 12:39:33,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 12:39:33,418 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 12:39:33,418 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 12:39:33,453 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 12:39:33,465 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 12:39:33,468 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 12:39:33,469 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 12:39:33,469 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 12:39:33,470 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/egcd2.c [2019-10-03 12:39:33,551 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e79640915/ad132543c63546abb176d329a0eaca1d/FLAGa93ed21bb [2019-10-03 12:39:33,987 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 12:39:33,988 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/egcd2.c [2019-10-03 12:39:33,994 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e79640915/ad132543c63546abb176d329a0eaca1d/FLAGa93ed21bb [2019-10-03 12:39:34,368 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e79640915/ad132543c63546abb176d329a0eaca1d [2019-10-03 12:39:34,376 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 12:39:34,377 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 12:39:34,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 12:39:34,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 12:39:34,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 12:39:34,383 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 12:39:34" (1/1) ... [2019-10-03 12:39:34,385 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16b6e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:34, skipping insertion in model container [2019-10-03 12:39:34,386 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 12:39:34" (1/1) ... [2019-10-03 12:39:34,393 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 12:39:34,413 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 12:39:34,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 12:39:34,646 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 12:39:34,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 12:39:34,811 INFO L192 MainTranslator]: Completed translation [2019-10-03 12:39:34,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:34 WrapperNode [2019-10-03 12:39:34,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 12:39:34,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 12:39:34,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 12:39:34,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 12:39:34,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:34" (1/1) ... [2019-10-03 12:39:34,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:34" (1/1) ... [2019-10-03 12:39:34,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:34" (1/1) ... [2019-10-03 12:39:34,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:34" (1/1) ... [2019-10-03 12:39:34,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:34" (1/1) ... [2019-10-03 12:39:34,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:34" (1/1) ... [2019-10-03 12:39:34,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:34" (1/1) ... [2019-10-03 12:39:34,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 12:39:34,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 12:39:34,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 12:39:34,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 12:39:34,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:34" (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 [2019-10-03 12:39:34,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 12:39:34,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 12:39:34,920 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-03 12:39:34,920 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 12:39:34,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 12:39:34,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 12:39:34,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-03 12:39:34,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-03 12:39:34,921 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 12:39:34,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 12:39:34,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 12:39:35,130 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 12:39:35,131 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-03 12:39:35,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 12:39:35 BoogieIcfgContainer [2019-10-03 12:39:35,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 12:39:35,134 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-10-03 12:39:35,134 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-10-03 12:39:35,134 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-10-03 12:39:35,135 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 12:39:35" (1/1) ... [2019-10-03 12:39:35,197 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 12:39:35,434 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-10-03 12:39:35,455 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. [2019-10-03 12:39:35,455 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-10-03 12:39:35,460 INFO L168 Benchmark]: Toolchain (without parser) took 1079.16 ms. Allocated memory was 134.2 MB in the beginning and 198.2 MB in the end (delta: 64.0 MB). Free memory was 90.5 MB in the beginning and 149.1 MB in the end (delta: -58.6 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. [2019-10-03 12:39:35,461 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 134.2 MB. Free memory was 108.5 MB in the beginning and 108.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 12:39:35,463 INFO L168 Benchmark]: CACSL2BoogieTranslator took 433.87 ms. Allocated memory was 134.2 MB in the beginning and 198.2 MB in the end (delta: 64.0 MB). Free memory was 90.3 MB in the beginning and 175.8 MB in the end (delta: -85.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2019-10-03 12:39:35,466 INFO L168 Benchmark]: Boogie Preprocessor took 38.04 ms. Allocated memory is still 198.2 MB. Free memory was 175.8 MB in the beginning and 173.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-10-03 12:39:35,468 INFO L168 Benchmark]: RCFGBuilder took 281.44 ms. Allocated memory is still 198.2 MB. Free memory was 173.6 MB in the beginning and 160.3 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2019-10-03 12:39:35,469 INFO L168 Benchmark]: Abstract Interpretation took 321.60 ms. Allocated memory is still 198.2 MB. Free memory was 159.7 MB in the beginning and 149.1 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2019-10-03 12:39:35,477 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 134.2 MB. Free memory was 108.5 MB in the beginning and 108.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 433.87 ms. Allocated memory was 134.2 MB in the beginning and 198.2 MB in the end (delta: 64.0 MB). Free memory was 90.3 MB in the beginning and 175.8 MB in the end (delta: -85.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 38.04 ms. Allocated memory is still 198.2 MB. Free memory was 175.8 MB in the beginning and 173.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 281.44 ms. Allocated memory is still 198.2 MB. Free memory was 173.6 MB in the beginning and 160.3 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 321.60 ms. Allocated memory is still 198.2 MB. Free memory was 159.7 MB in the beginning and 149.1 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 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...