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/cohendiv.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-11 16:14:22,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-11 16:14:22,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-11 16:14:22,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-11 16:14:22,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-11 16:14:22,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-11 16:14:22,222 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-11 16:14:22,224 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-11 16:14:22,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-11 16:14:22,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-11 16:14:22,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-11 16:14:22,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-11 16:14:22,229 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-11 16:14:22,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-11 16:14:22,231 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-11 16:14:22,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-11 16:14:22,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-11 16:14:22,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-11 16:14:22,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-11 16:14:22,237 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-11 16:14:22,239 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-11 16:14:22,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-11 16:14:22,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-11 16:14:22,242 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-11 16:14:22,244 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-11 16:14:22,248 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-11 16:14:22,248 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-11 16:14:22,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-11 16:14:22,250 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-11 16:14:22,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-11 16:14:22,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-11 16:14:22,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-11 16:14:22,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-11 16:14:22,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-11 16:14:22,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-11 16:14:22,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-11 16:14:22,254 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 16:14:22,270 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-11 16:14:22,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-11 16:14:22,270 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-11 16:14:22,271 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-11 16:14:22,271 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-11 16:14:22,272 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-11 16:14:22,272 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-11 16:14:22,272 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-11 16:14:22,272 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-11 16:14:22,272 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-11 16:14:22,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-11 16:14:22,273 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-11 16:14:22,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-11 16:14:22,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-11 16:14:22,274 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-11 16:14:22,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-11 16:14:22,274 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-11 16:14:22,274 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-11 16:14:22,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-11 16:14:22,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-11 16:14:22,275 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-11 16:14:22,275 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-11 16:14:22,275 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-11 16:14:22,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:14:22,276 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-11 16:14:22,276 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-11 16:14:22,276 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-11 16:14:22,276 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-11 16:14:22,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-11 16:14:22,277 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-11 16:14:22,306 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-11 16:14:22,318 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-11 16:14:22,322 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-11 16:14:22,324 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-11 16:14:22,324 INFO L275 PluginConnector]: CDTParser initialized [2019-09-11 16:14:22,325 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/cohendiv.c [2019-09-11 16:14:22,389 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dfb3fd8a/a7f408197f61459185aa0b3de6c89b06/FLAG398df5d37 [2019-09-11 16:14:22,863 INFO L306 CDTParser]: Found 1 translation units. [2019-09-11 16:14:22,864 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/cohendiv.c [2019-09-11 16:14:22,871 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dfb3fd8a/a7f408197f61459185aa0b3de6c89b06/FLAG398df5d37 [2019-09-11 16:14:23,251 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dfb3fd8a/a7f408197f61459185aa0b3de6c89b06 [2019-09-11 16:14:23,260 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-11 16:14:23,262 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-11 16:14:23,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-11 16:14:23,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-11 16:14:23,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-11 16:14:23,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:14:23" (1/1) ... [2019-09-11 16:14:23,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a823ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:23, skipping insertion in model container [2019-09-11 16:14:23,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:14:23" (1/1) ... [2019-09-11 16:14:23,278 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-11 16:14:23,297 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-11 16:14:23,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:14:23,468 INFO L188 MainTranslator]: Completed pre-run [2019-09-11 16:14:23,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:14:23,504 INFO L192 MainTranslator]: Completed translation [2019-09-11 16:14:23,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:23 WrapperNode [2019-09-11 16:14:23,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-11 16:14:23,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-11 16:14:23,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-11 16:14:23,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-11 16:14:23,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:23" (1/1) ... [2019-09-11 16:14:23,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:23" (1/1) ... [2019-09-11 16:14:23,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:23" (1/1) ... [2019-09-11 16:14:23,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:23" (1/1) ... [2019-09-11 16:14:23,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:23" (1/1) ... [2019-09-11 16:14:23,640 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:23" (1/1) ... [2019-09-11 16:14:23,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:23" (1/1) ... [2019-09-11 16:14:23,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-11 16:14:23,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-11 16:14:23,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-11 16:14:23,644 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-11 16:14:23,645 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:23" (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 16:14:23,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-11 16:14:23,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-11 16:14:23,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-11 16:14:23,707 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-11 16:14:23,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-11 16:14:23,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-11 16:14:23,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-11 16:14:23,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-11 16:14:23,707 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-11 16:14:23,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-11 16:14:23,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-11 16:14:24,002 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-11 16:14:24,002 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-09-11 16:14:24,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:14:24 BoogieIcfgContainer [2019-09-11 16:14:24,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-11 16:14:24,004 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-11 16:14:24,005 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-11 16:14:24,005 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-11 16:14:24,006 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:14:24" (1/1) ... [2019-09-11 16:14:24,047 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-11 16:14:24,177 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-11 16:14:24,199 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. [2019-09-11 16:14:24,199 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-11 16:14:24,202 INFO L168 Benchmark]: Toolchain (without parser) took 939.03 ms. Allocated memory was 142.6 MB in the beginning and 203.9 MB in the end (delta: 61.3 MB). Free memory was 88.9 MB in the beginning and 160.9 MB in the end (delta: -71.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-11 16:14:24,203 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 142.6 MB. Free memory was 107.7 MB in the beginning and 107.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-11 16:14:24,204 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.99 ms. Allocated memory is still 142.6 MB. Free memory was 88.7 MB in the beginning and 79.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-09-11 16:14:24,206 INFO L168 Benchmark]: Boogie Preprocessor took 138.05 ms. Allocated memory was 142.6 MB in the beginning and 203.9 MB in the end (delta: 61.3 MB). Free memory was 79.1 MB in the beginning and 181.6 MB in the end (delta: -102.5 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2019-09-11 16:14:24,207 INFO L168 Benchmark]: RCFGBuilder took 359.84 ms. Allocated memory is still 203.9 MB. Free memory was 181.6 MB in the beginning and 168.9 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. [2019-09-11 16:14:24,208 INFO L168 Benchmark]: Abstract Interpretation took 194.64 ms. Allocated memory is still 203.9 MB. Free memory was 168.9 MB in the beginning and 160.9 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 7.1 GB. [2019-09-11 16:14:24,213 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 142.6 MB. Free memory was 107.7 MB in the beginning and 107.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 241.99 ms. Allocated memory is still 142.6 MB. Free memory was 88.7 MB in the beginning and 79.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 138.05 ms. Allocated memory was 142.6 MB in the beginning and 203.9 MB in the end (delta: 61.3 MB). Free memory was 79.1 MB in the beginning and 181.6 MB in the end (delta: -102.5 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 359.84 ms. Allocated memory is still 203.9 MB. Free memory was 181.6 MB in the beginning and 168.9 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 194.64 ms. Allocated memory is still 203.9 MB. Free memory was 168.9 MB in the beginning and 160.9 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 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...