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 0.1.24-673a906-m [2019-10-03 12:39:32,170 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 12:39:32,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 12:39:32,184 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 12:39:32,185 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 12:39:32,186 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 12:39:32,187 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 12:39:32,189 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 12:39:32,191 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 12:39:32,191 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 12:39:32,192 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 12:39:32,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 12:39:32,194 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 12:39:32,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 12:39:32,196 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 12:39:32,197 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 12:39:32,198 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 12:39:32,199 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 12:39:32,201 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 12:39:32,203 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 12:39:32,205 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 12:39:32,206 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 12:39:32,207 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 12:39:32,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 12:39:32,211 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-03 12:39:32,214 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 12:39:32,215 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 12:39:32,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 12:39:32,217 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 12:39:32,218 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 12:39:32,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 12:39:32,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 12:39:32,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 12:39:32,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 12:39:32,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 12:39:32,221 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 12:39:32,222 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 12:39:32,237 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 12:39:32,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 12:39:32,238 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 12:39:32,238 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 12:39:32,239 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 12:39:32,239 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 12:39:32,239 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 12:39:32,240 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 12:39:32,240 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 12:39:32,240 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 12:39:32,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 12:39:32,241 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 12:39:32,241 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 12:39:32,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 12:39:32,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 12:39:32,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 12:39:32,242 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 12:39:32,242 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 12:39:32,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 12:39:32,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 12:39:32,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 12:39:32,243 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 12:39:32,243 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 12:39:32,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 12:39:32,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 12:39:32,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 12:39:32,244 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 12:39:32,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 12:39:32,244 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 12:39:32,245 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 12:39:32,274 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 12:39:32,295 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 12:39:32,298 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 12:39:32,300 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 12:39:32,300 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 12:39:32,301 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/cohendiv.c [2019-10-03 12:39:32,366 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9dc417b20/fa861895cef54ef1840698c6361040db/FLAG6b42b9445 [2019-10-03 12:39:32,868 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 12:39:32,869 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/cohendiv.c [2019-10-03 12:39:32,876 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9dc417b20/fa861895cef54ef1840698c6361040db/FLAG6b42b9445 [2019-10-03 12:39:33,200 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9dc417b20/fa861895cef54ef1840698c6361040db [2019-10-03 12:39:33,211 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 12:39:33,213 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 12:39:33,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 12:39:33,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 12:39:33,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 12:39:33,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 12:39:33" (1/1) ... [2019-10-03 12:39:33,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@400ef4f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:33, skipping insertion in model container [2019-10-03 12:39:33,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 12:39:33" (1/1) ... [2019-10-03 12:39:33,232 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 12:39:33,250 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 12:39:33,411 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 12:39:33,415 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 12:39:33,437 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 12:39:33,452 INFO L192 MainTranslator]: Completed translation [2019-10-03 12:39:33,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:33 WrapperNode [2019-10-03 12:39:33,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 12:39:33,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 12:39:33,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 12:39:33,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 12:39:33,560 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:33" (1/1) ... [2019-10-03 12:39:33,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:33" (1/1) ... [2019-10-03 12:39:33,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:33" (1/1) ... [2019-10-03 12:39:33,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:33" (1/1) ... [2019-10-03 12:39:33,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:33" (1/1) ... [2019-10-03 12:39:33,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:33" (1/1) ... [2019-10-03 12:39:33,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:33" (1/1) ... [2019-10-03 12:39:33,578 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 12:39:33,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 12:39:33,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 12:39:33,579 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 12:39:33,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:33" (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 12:39:33,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 12:39:33,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 12:39:33,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-03 12:39:33,641 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 12:39:33,641 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 12:39:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 12:39:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-03 12:39:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-03 12:39:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 12:39:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 12:39:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 12:39:33,872 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 12:39:33,873 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-03 12:39:33,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 12:39:33 BoogieIcfgContainer [2019-10-03 12:39:33,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 12:39:33,877 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-10-03 12:39:33,877 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-10-03 12:39:33,878 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-10-03 12:39:33,879 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 12:39:33" (1/1) ... [2019-10-03 12:39:33,953 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 12:39:34,080 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-10-03 12:39:34,101 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. [2019-10-03 12:39:34,101 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-10-03 12:39:34,106 INFO L168 Benchmark]: Toolchain (without parser) took 890.96 ms. Allocated memory was 137.4 MB in the beginning and 198.2 MB in the end (delta: 60.8 MB). Free memory was 85.8 MB in the beginning and 154.4 MB in the end (delta: -68.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-03 12:39:34,107 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.4 MB. Free memory is still 103.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-03 12:39:34,109 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.75 ms. Allocated memory is still 137.4 MB. Free memory was 85.3 MB in the beginning and 75.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-10-03 12:39:34,113 INFO L168 Benchmark]: Boogie Preprocessor took 123.96 ms. Allocated memory was 137.4 MB in the beginning and 198.2 MB in the end (delta: 60.8 MB). Free memory was 75.5 MB in the beginning and 174.9 MB in the end (delta: -99.5 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2019-10-03 12:39:34,115 INFO L168 Benchmark]: RCFGBuilder took 297.48 ms. Allocated memory is still 198.2 MB. Free memory was 174.9 MB in the beginning and 161.8 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2019-10-03 12:39:34,116 INFO L168 Benchmark]: Abstract Interpretation took 224.81 ms. Allocated memory is still 198.2 MB. Free memory was 161.8 MB in the beginning and 154.4 MB in the end (delta: 7.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 7.1 GB. [2019-10-03 12:39:34,126 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 137.4 MB. Free memory is still 103.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 239.75 ms. Allocated memory is still 137.4 MB. Free memory was 85.3 MB in the beginning and 75.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.96 ms. Allocated memory was 137.4 MB in the beginning and 198.2 MB in the end (delta: 60.8 MB). Free memory was 75.5 MB in the beginning and 174.9 MB in the end (delta: -99.5 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 297.48 ms. Allocated memory is still 198.2 MB. Free memory was 174.9 MB in the beginning and 161.8 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 224.81 ms. Allocated memory is still 198.2 MB. Free memory was 161.8 MB in the beginning and 154.4 MB in the end (delta: 7.4 MB). Peak memory consumption was 7.4 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...