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/prod4br.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:48:00,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:48:00,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:48:00,679 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-20 13:48:00,747 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 [2019-09-20 13:48:00,783 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:48:00,783 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:48:00,783 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:48:00,784 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:48:00,784 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:48:00,784 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:48:00,785 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:48:00,785 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:48:00,785 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:48:00,788 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:48:00,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:48:00,789 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:48:00,790 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:48:00,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:48:00,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:48:00,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:48:00,790 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:48:00,790 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:48:00,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:48:00,791 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:48:00,793 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:48:00,794 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:48:00,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:48:00,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:48:00,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:48:00,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:48:00,795 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:48:00,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:48:00,795 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:48:00,795 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:48:00,843 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:48:00,859 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:48:00,862 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:48:00,864 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:48:00,864 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:48:00,865 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/prod4br.c [2019-09-20 13:48:00,936 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0b7019d2/95774a3b8b1447658a80e2609450c849/FLAGe9266fc43 [2019-09-20 13:48:01,438 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:48:01,439 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/prod4br.c [2019-09-20 13:48:01,447 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0b7019d2/95774a3b8b1447658a80e2609450c849/FLAGe9266fc43 [2019-09-20 13:48:01,787 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0b7019d2/95774a3b8b1447658a80e2609450c849 [2019-09-20 13:48:01,795 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:48:01,796 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:48:01,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:48:01,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:48:01,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:48:01,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:48:01" (1/1) ... [2019-09-20 13:48:01,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69fcc4fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:01, skipping insertion in model container [2019-09-20 13:48:01,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:48:01" (1/1) ... [2019-09-20 13:48:01,814 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:48:01,834 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:48:02,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:48:02,004 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:48:02,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:48:02,126 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:48:02,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:02 WrapperNode [2019-09-20 13:48:02,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:48:02,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:48:02,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:48:02,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:48:02,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:02" (1/1) ... [2019-09-20 13:48:02,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:02" (1/1) ... [2019-09-20 13:48:02,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:02" (1/1) ... [2019-09-20 13:48:02,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:02" (1/1) ... [2019-09-20 13:48:02,153 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:02" (1/1) ... [2019-09-20 13:48:02,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:02" (1/1) ... [2019-09-20 13:48:02,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:02" (1/1) ... [2019-09-20 13:48:02,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:48:02,163 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:48:02,163 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:48:02,163 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:48:02,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:02" (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 [2019-09-20 13:48:02,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:48:02,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:48:02,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 13:48:02,225 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:48:02,225 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:48:02,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:48:02,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-20 13:48:02,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 13:48:02,226 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:48:02,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:48:02,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:48:02,432 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:48:02,432 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 13:48:02,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:48:02 BoogieIcfgContainer [2019-09-20 13:48:02,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:48:02,435 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-20 13:48:02,435 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-20 13:48:02,435 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-20 13:48:02,436 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:48:02" (1/1) ... [2019-09-20 13:48:02,466 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:48:02,689 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-20 13:48:05,970 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-20 13:48:06,002 INFO L272 AbstractInterpreter]: Visited 32 different actions 421 times. Merged at 14 different actions 107 times. Widened at 3 different actions 6 times. Performed 748 root evaluator evaluations with a maximum evaluation depth of 12. Performed 748 inverse root evaluator evaluations with a maximum inverse evaluation depth of 12. Found 43 fixpoints after 5 different actions. Largest state had 9 variables. [2019-09-20 13:48:06,002 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-20 13:48:06,014 INFO L168 Benchmark]: Toolchain (without parser) took 4210.04 ms. Allocated memory was 136.8 MB in the beginning and 391.1 MB in the end (delta: 254.3 MB). Free memory was 83.0 MB in the beginning and 157.6 MB in the end (delta: -74.6 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:06,016 INFO L168 Benchmark]: CDTParser took 1.19 ms. Allocated memory is still 136.8 MB. Free memory was 101.6 MB in the beginning and 101.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:48:06,017 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.25 ms. Allocated memory was 136.8 MB in the beginning and 197.1 MB in the end (delta: 60.3 MB). Free memory was 82.8 MB in the beginning and 175.6 MB in the end (delta: -92.8 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:06,018 INFO L168 Benchmark]: Boogie Preprocessor took 35.21 ms. Allocated memory is still 197.1 MB. Free memory was 175.6 MB in the beginning and 173.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:06,020 INFO L168 Benchmark]: RCFGBuilder took 271.46 ms. Allocated memory is still 197.1 MB. Free memory was 173.3 MB in the beginning and 160.6 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:06,021 INFO L168 Benchmark]: Abstract Interpretation took 3568.03 ms. Allocated memory was 197.1 MB in the beginning and 391.1 MB in the end (delta: 194.0 MB). Free memory was 160.6 MB in the beginning and 157.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 197.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:06,025 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.19 ms. Allocated memory is still 136.8 MB. Free memory was 101.6 MB in the beginning and 101.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 329.25 ms. Allocated memory was 136.8 MB in the beginning and 197.1 MB in the end (delta: 60.3 MB). Free memory was 82.8 MB in the beginning and 175.6 MB in the end (delta: -92.8 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.21 ms. Allocated memory is still 197.1 MB. Free memory was 175.6 MB in the beginning and 173.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 271.46 ms. Allocated memory is still 197.1 MB. Free memory was 173.3 MB in the beginning and 160.6 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 3568.03 ms. Allocated memory was 197.1 MB in the beginning and 391.1 MB in the end (delta: 194.0 MB). Free memory was 160.6 MB in the beginning and 157.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 197.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 9]: 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: [L15] int x, y; [L16] int a, b, p, q; [L18] x = __VERIFIER_nondet_int() [L19] y = __VERIFIER_nondet_int() [L22] a = x [L23] b = y [L24] p = 1 [L25] q = 0 [L27] COND TRUE 1 [L28] CALL __VERIFIER_assert(q + a * b * p == x * y) [L7] COND TRUE !(cond) [L9] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...