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 0.1.24-112bae1 [2019-09-11 16:14:27,493 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-11 16:14:27,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-11 16:14:27,516 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-11 16:14:27,517 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-11 16:14:27,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-11 16:14:27,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-11 16:14:27,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-11 16:14:27,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-11 16:14:27,537 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-11 16:14:27,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-11 16:14:27,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-11 16:14:27,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-11 16:14:27,544 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-11 16:14:27,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-11 16:14:27,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-11 16:14:27,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-11 16:14:27,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-11 16:14:27,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-11 16:14:27,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-11 16:14:27,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-11 16:14:27,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-11 16:14:27,567 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-11 16:14:27,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-11 16:14:27,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-11 16:14:27,577 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-11 16:14:27,579 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-11 16:14:27,580 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-11 16:14:27,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-11 16:14:27,582 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-11 16:14:27,583 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-11 16:14:27,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-11 16:14:27,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-11 16:14:27,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-11 16:14:27,585 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-11 16:14:27,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-11 16:14:27,586 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 [2019-09-11 16:14:27,621 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-11 16:14:27,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-11 16:14:27,623 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-11 16:14:27,623 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-11 16:14:27,627 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-11 16:14:27,628 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-11 16:14:27,628 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-11 16:14:27,628 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-11 16:14:27,628 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-11 16:14:27,629 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-11 16:14:27,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-11 16:14:27,630 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-11 16:14:27,630 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-11 16:14:27,630 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-11 16:14:27,632 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-11 16:14:27,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-11 16:14:27,633 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-11 16:14:27,633 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-11 16:14:27,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-11 16:14:27,633 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-11 16:14:27,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-11 16:14:27,634 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-11 16:14:27,634 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-11 16:14:27,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:14:27,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-11 16:14:27,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-11 16:14:27,635 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-11 16:14:27,635 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-11 16:14:27,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-11 16:14:27,635 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-11 16:14:27,665 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-11 16:14:27,678 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-11 16:14:27,682 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-11 16:14:27,683 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-11 16:14:27,684 INFO L275 PluginConnector]: CDTParser initialized [2019-09-11 16:14:27,685 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/egcd2.c [2019-09-11 16:14:27,747 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edc7ddd11/3c1afc41189c44368d1483ae9797b315/FLAG511974cef [2019-09-11 16:14:28,225 INFO L306 CDTParser]: Found 1 translation units. [2019-09-11 16:14:28,226 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/egcd2.c [2019-09-11 16:14:28,235 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edc7ddd11/3c1afc41189c44368d1483ae9797b315/FLAG511974cef [2019-09-11 16:14:28,594 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edc7ddd11/3c1afc41189c44368d1483ae9797b315 [2019-09-11 16:14:28,602 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-11 16:14:28,604 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-11 16:14:28,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-11 16:14:28,605 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-11 16:14:28,608 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-11 16:14:28,609 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:14:28" (1/1) ... [2019-09-11 16:14:28,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@df75dc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:28, skipping insertion in model container [2019-09-11 16:14:28,612 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:14:28" (1/1) ... [2019-09-11 16:14:28,618 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-11 16:14:28,636 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-11 16:14:28,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:14:28,820 INFO L188 MainTranslator]: Completed pre-run [2019-09-11 16:14:28,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:14:28,855 INFO L192 MainTranslator]: Completed translation [2019-09-11 16:14:28,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:28 WrapperNode [2019-09-11 16:14:28,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-11 16:14:28,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-11 16:14:28,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-11 16:14:28,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-11 16:14:28,960 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:28" (1/1) ... [2019-09-11 16:14:28,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:28" (1/1) ... [2019-09-11 16:14:28,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:28" (1/1) ... [2019-09-11 16:14:28,971 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:28" (1/1) ... [2019-09-11 16:14:28,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:28" (1/1) ... [2019-09-11 16:14:28,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:28" (1/1) ... [2019-09-11 16:14:28,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:28" (1/1) ... [2019-09-11 16:14:28,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-11 16:14:28,994 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-11 16:14:28,994 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-11 16:14:28,994 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-11 16:14:28,995 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:28" (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 [2019-09-11 16:14:29,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-11 16:14:29,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-11 16:14:29,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-11 16:14:29,047 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-11 16:14:29,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-11 16:14:29,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-11 16:14:29,048 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-11 16:14:29,048 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-11 16:14:29,049 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-11 16:14:29,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-11 16:14:29,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-11 16:14:29,344 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-11 16:14:29,344 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-09-11 16:14:29,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:14:29 BoogieIcfgContainer [2019-09-11 16:14:29,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-11 16:14:29,347 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-11 16:14:29,347 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-11 16:14:29,347 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-11 16:14:29,348 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:14:29" (1/1) ... [2019-09-11 16:14:29,382 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-11 16:14:29,591 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-11 16:14:29,611 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. [2019-09-11 16:14:29,611 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-11 16:14:29,614 INFO L168 Benchmark]: Toolchain (without parser) took 1008.92 ms. Allocated memory was 140.0 MB in the beginning and 199.2 MB in the end (delta: 59.2 MB). Free memory was 88.0 MB in the beginning and 152.2 MB in the end (delta: -64.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-11 16:14:29,615 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 106.3 MB in the beginning and 106.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-11 16:14:29,616 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.46 ms. Allocated memory is still 140.0 MB. Free memory was 87.8 MB in the beginning and 77.9 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-09-11 16:14:29,617 INFO L168 Benchmark]: Boogie Preprocessor took 137.13 ms. Allocated memory was 140.0 MB in the beginning and 199.2 MB in the end (delta: 59.2 MB). Free memory was 77.9 MB in the beginning and 176.7 MB in the end (delta: -98.8 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-09-11 16:14:29,618 INFO L168 Benchmark]: RCFGBuilder took 352.34 ms. Allocated memory is still 199.2 MB. Free memory was 176.1 MB in the beginning and 163.2 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2019-09-11 16:14:29,619 INFO L168 Benchmark]: Abstract Interpretation took 264.28 ms. Allocated memory is still 199.2 MB. Free memory was 163.2 MB in the beginning and 152.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2019-09-11 16:14:29,623 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 140.0 MB. Free memory was 106.3 MB in the beginning and 106.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 251.46 ms. Allocated memory is still 140.0 MB. Free memory was 87.8 MB in the beginning and 77.9 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 137.13 ms. Allocated memory was 140.0 MB in the beginning and 199.2 MB in the end (delta: 59.2 MB). Free memory was 77.9 MB in the beginning and 176.7 MB in the end (delta: -98.8 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 352.34 ms. Allocated memory is still 199.2 MB. Free memory was 176.1 MB in the beginning and 163.2 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 264.28 ms. Allocated memory is still 199.2 MB. Free memory was 163.2 MB in the beginning and 152.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 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 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...