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/egcd3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-11 16:14:27,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-11 16:14:27,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-11 16:14:27,641 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-11 16:14:27,641 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-11 16:14:27,642 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-11 16:14:27,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-11 16:14:27,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-11 16:14:27,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-11 16:14:27,648 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-11 16:14:27,649 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-11 16:14:27,650 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-11 16:14:27,651 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-11 16:14:27,651 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-11 16:14:27,652 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-11 16:14:27,653 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-11 16:14:27,654 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-11 16:14:27,655 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-11 16:14:27,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-11 16:14:27,659 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-11 16:14:27,660 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-11 16:14:27,661 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-11 16:14:27,663 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-11 16:14:27,663 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-11 16:14:27,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-11 16:14:27,669 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-11 16:14:27,669 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-11 16:14:27,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-11 16:14:27,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-11 16:14:27,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-11 16:14:27,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-11 16:14:27,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-11 16:14:27,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-11 16:14:27,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-11 16:14:27,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-11 16:14:27,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-11 16:14:27,676 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 16:14:27,691 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-11 16:14:27,692 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-11 16:14:27,692 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-11 16:14:27,692 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-11 16:14:27,693 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-11 16:14:27,693 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-11 16:14:27,693 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-11 16:14:27,693 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-11 16:14:27,694 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-11 16:14:27,694 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-11 16:14:27,695 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-11 16:14:27,695 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-11 16:14:27,695 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-11 16:14:27,695 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-11 16:14:27,695 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-11 16:14:27,696 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-11 16:14:27,696 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-11 16:14:27,696 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-11 16:14:27,696 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-11 16:14:27,696 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-11 16:14:27,697 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-11 16:14:27,697 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-11 16:14:27,697 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-11 16:14:27,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:14:27,697 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-11 16:14:27,698 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-11 16:14:27,698 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-11 16:14:27,698 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-11 16:14:27,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-11 16:14:27,698 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-11 16:14:27,731 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-11 16:14:27,745 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-11 16:14:27,750 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-11 16:14:27,751 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-11 16:14:27,752 INFO L275 PluginConnector]: CDTParser initialized [2019-09-11 16:14:27,753 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/egcd3.c [2019-09-11 16:14:27,831 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20c6fb9ca/be18e6c43ab6499e958d029806265376/FLAG8ec52880c [2019-09-11 16:14:28,302 INFO L306 CDTParser]: Found 1 translation units. [2019-09-11 16:14:28,303 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/egcd3.c [2019-09-11 16:14:28,311 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20c6fb9ca/be18e6c43ab6499e958d029806265376/FLAG8ec52880c [2019-09-11 16:14:28,656 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20c6fb9ca/be18e6c43ab6499e958d029806265376 [2019-09-11 16:14:28,667 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-11 16:14:28,669 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-11 16:14:28,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-11 16:14:28,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-11 16:14:28,677 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-11 16:14:28,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:14:28" (1/1) ... [2019-09-11 16:14:28,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40f63f78 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 16:14:28,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:14:28" (1/1) ... [2019-09-11 16:14:28,689 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-11 16:14:28,714 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-11 16:14:28,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:14:28,936 INFO L188 MainTranslator]: Completed pre-run [2019-09-11 16:14:28,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:14:29,078 INFO L192 MainTranslator]: Completed translation [2019-09-11 16:14:29,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:29 WrapperNode [2019-09-11 16:14:29,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-11 16:14:29,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-11 16:14:29,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-11 16:14:29,080 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-11 16:14:29,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:29" (1/1) ... [2019-09-11 16:14:29,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:29" (1/1) ... [2019-09-11 16:14:29,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:29" (1/1) ... [2019-09-11 16:14:29,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:29" (1/1) ... [2019-09-11 16:14:29,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:29" (1/1) ... [2019-09-11 16:14:29,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:29" (1/1) ... [2019-09-11 16:14:29,120 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:29" (1/1) ... [2019-09-11 16:14:29,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-11 16:14:29,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-11 16:14:29,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-11 16:14:29,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-11 16:14:29,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:29" (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 16:14:29,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-11 16:14:29,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-11 16:14:29,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-11 16:14:29,184 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-11 16:14:29,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-11 16:14:29,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-11 16:14:29,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-11 16:14:29,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-11 16:14:29,185 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-11 16:14:29,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-11 16:14:29,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-11 16:14:29,569 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-11 16:14:29,569 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-09-11 16:14:29,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:14:29 BoogieIcfgContainer [2019-09-11 16:14:29,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-11 16:14:29,572 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-11 16:14:29,572 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-11 16:14:29,572 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-11 16:14:29,573 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 16:14:29,601 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-11 16:14:29,916 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-11 16:14:29,939 INFO L272 AbstractInterpreter]: Visited 37 different actions 85 times. Merged at 8 different actions 8 times. Never widened. Performed 165 root evaluator evaluations with a maximum evaluation depth of 9. Performed 165 inverse root evaluator evaluations with a maximum inverse evaluation depth of 9. Found 1 fixpoints after 1 different actions. Largest state had 16 variables. [2019-09-11 16:14:29,939 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-11 16:14:29,944 INFO L168 Benchmark]: Toolchain (without parser) took 1272.44 ms. Allocated memory was 141.0 MB in the beginning and 200.8 MB in the end (delta: 59.8 MB). Free memory was 88.7 MB in the beginning and 145.0 MB in the end (delta: -56.3 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2019-09-11 16:14:29,944 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 141.0 MB. Free memory is still 107.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-11 16:14:29,946 INFO L168 Benchmark]: CACSL2BoogieTranslator took 409.84 ms. Allocated memory was 141.0 MB in the beginning and 200.8 MB in the end (delta: 59.8 MB). Free memory was 88.3 MB in the beginning and 178.8 MB in the end (delta: -90.5 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-09-11 16:14:29,948 INFO L168 Benchmark]: Boogie Preprocessor took 42.10 ms. Allocated memory is still 200.8 MB. Free memory was 178.8 MB in the beginning and 176.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-09-11 16:14:29,951 INFO L168 Benchmark]: RCFGBuilder took 442.96 ms. Allocated memory is still 200.8 MB. Free memory was 176.6 MB in the beginning and 162.9 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2019-09-11 16:14:29,951 INFO L168 Benchmark]: Abstract Interpretation took 367.73 ms. Allocated memory is still 200.8 MB. Free memory was 162.9 MB in the beginning and 145.0 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. [2019-09-11 16:14:29,962 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 141.0 MB. Free memory is still 107.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 409.84 ms. Allocated memory was 141.0 MB in the beginning and 200.8 MB in the end (delta: 59.8 MB). Free memory was 88.3 MB in the beginning and 178.8 MB in the end (delta: -90.5 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.10 ms. Allocated memory is still 200.8 MB. Free memory was 178.8 MB in the beginning and 176.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 442.96 ms. Allocated memory is still 200.8 MB. Free memory was 176.6 MB in the beginning and 162.9 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 367.73 ms. Allocated memory is still 200.8 MB. Free memory was 162.9 MB in the beginning and 145.0 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 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; [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 [L28] COND TRUE 1 [L29] COND TRUE !(b != 0) [L67] CALL __VERIFIER_assert(p*x - q*x + r*y - s*y == a) [L6] COND TRUE !(cond) [L8] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...