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/loop-acceleration/functions_1-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c6af20d [2019-09-03 21:26:03,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-03 21:26:03,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-03 21:26:03,695 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-03 21:26:03,705 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-03 21:26:03,706 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-03 21:26:03,707 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-03 21:26:03,708 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-03 21:26:03,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-03 21:26:03,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-03 21:26:03,712 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-03 21:26:03,714 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-03 21:26:03,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-03 21:26:03,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-03 21:26:03,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-03 21:26:03,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-03 21:26:03,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-03 21:26:03,731 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 [2019-09-03 21:26:03,746 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-03 21:26:03,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-03 21:26:03,747 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-03 21:26:03,747 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-03 21:26:03,748 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-03 21:26:03,748 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-03 21:26:03,748 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-03 21:26:03,749 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-03 21:26:03,749 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-03 21:26:03,749 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-03 21:26:03,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-03 21:26:03,750 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-03 21:26:03,750 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-03 21:26:03,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-03 21:26:03,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-03 21:26:03,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-03 21:26:03,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-03 21:26:03,751 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-03 21:26:03,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-03 21:26:03,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-03 21:26:03,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-03 21:26:03,752 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-03 21:26:03,752 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-03 21:26:03,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-03 21:26:03,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-03 21:26:03,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-03 21:26:03,753 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-03 21:26:03,753 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-03 21:26:03,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-03 21:26:03,753 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-03 21:26:03,783 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-03 21:26:03,794 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-03 21:26:03,798 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-03 21:26:03,799 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-03 21:26:03,799 INFO L275 PluginConnector]: CDTParser initialized [2019-09-03 21:26:03,800 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/functions_1-1.c [2019-09-03 21:26:03,861 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a5e4b9ea/afc3af3532b143d2816352c40d2d5942/FLAG6f44d6ff0 [2019-09-03 21:26:04,313 INFO L306 CDTParser]: Found 1 translation units. [2019-09-03 21:26:04,314 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/functions_1-1.c [2019-09-03 21:26:04,321 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a5e4b9ea/afc3af3532b143d2816352c40d2d5942/FLAG6f44d6ff0 [2019-09-03 21:26:04,706 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a5e4b9ea/afc3af3532b143d2816352c40d2d5942 [2019-09-03 21:26:04,716 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-03 21:26:04,717 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-03 21:26:04,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-03 21:26:04,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-03 21:26:04,724 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-03 21:26:04,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:26:04" (1/1) ... [2019-09-03 21:26:04,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@181c038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:04, skipping insertion in model container [2019-09-03 21:26:04,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:26:04" (1/1) ... [2019-09-03 21:26:04,736 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-03 21:26:04,753 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-03 21:26:04,960 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:26:04,963 INFO L188 MainTranslator]: Completed pre-run [2019-09-03 21:26:04,975 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:26:04,988 INFO L192 MainTranslator]: Completed translation [2019-09-03 21:26:04,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:04 WrapperNode [2019-09-03 21:26:04,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-03 21:26:04,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-03 21:26:04,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-03 21:26:04,989 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-03 21:26:05,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:04" (1/1) ... [2019-09-03 21:26:05,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:04" (1/1) ... [2019-09-03 21:26:05,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:04" (1/1) ... [2019-09-03 21:26:05,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:04" (1/1) ... [2019-09-03 21:26:05,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:04" (1/1) ... [2019-09-03 21:26:05,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:04" (1/1) ... [2019-09-03 21:26:05,102 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:04" (1/1) ... [2019-09-03 21:26:05,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-03 21:26:05,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-03 21:26:05,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-03 21:26:05,111 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-03 21:26:05,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:04" (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 [2019-09-03 21:26:05,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-03 21:26:05,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-03 21:26:05,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-03 21:26:05,178 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-09-03 21:26:05,178 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-03 21:26:05,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-03 21:26:05,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-03 21:26:05,178 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-09-03 21:26:05,179 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-03 21:26:05,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-03 21:26:05,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-03 21:26:05,319 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-03 21:26:05,319 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-03 21:26:05,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:26:05 BoogieIcfgContainer [2019-09-03 21:26:05,321 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-03 21:26:05,322 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-03 21:26:05,322 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-03 21:26:05,322 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-03 21:26:05,323 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:26:05" (1/1) ... [2019-09-03 21:26:05,352 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-03 21:26:05,476 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-03 21:26:07,298 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-03 21:26:07,321 INFO L272 AbstractInterpreter]: Visited 24 different actions 114 times. Merged at 6 different actions 30 times. Widened at 1 different actions 3 times. Performed 115 root evaluator evaluations with a maximum evaluation depth of 13. Performed 115 inverse root evaluator evaluations with a maximum inverse evaluation depth of 13. Found 6 fixpoints after 2 different actions. Largest state had 3 variables. [2019-09-03 21:26:07,322 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-03 21:26:07,327 INFO L168 Benchmark]: Toolchain (without parser) took 2606.58 ms. Allocated memory was 131.1 MB in the beginning and 271.1 MB in the end (delta: 140.0 MB). Free memory was 86.7 MB in the beginning and 102.5 MB in the end (delta: -15.8 MB). Peak memory consumption was 124.2 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:07,328 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 131.1 MB. Free memory is still 104.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-03 21:26:07,330 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.10 ms. Allocated memory is still 131.1 MB. Free memory was 86.3 MB in the beginning and 77.5 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:07,334 INFO L168 Benchmark]: Boogie Preprocessor took 120.86 ms. Allocated memory was 131.1 MB in the beginning and 198.2 MB in the end (delta: 67.1 MB). Free memory was 77.5 MB in the beginning and 175.3 MB in the end (delta: -97.8 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:07,336 INFO L168 Benchmark]: RCFGBuilder took 210.56 ms. Allocated memory is still 198.2 MB. Free memory was 174.3 MB in the beginning and 163.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:07,338 INFO L168 Benchmark]: Abstract Interpretation took 2000.16 ms. Allocated memory was 198.2 MB in the beginning and 271.1 MB in the end (delta: 72.9 MB). Free memory was 163.6 MB in the beginning and 102.5 MB in the end (delta: 61.2 MB). Peak memory consumption was 134.0 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:07,348 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 131.1 MB. Free memory is still 104.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 270.10 ms. Allocated memory is still 131.1 MB. Free memory was 86.3 MB in the beginning and 77.5 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.86 ms. Allocated memory was 131.1 MB in the beginning and 198.2 MB in the end (delta: 67.1 MB). Free memory was 77.5 MB in the beginning and 175.3 MB in the end (delta: -97.8 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 210.56 ms. Allocated memory is still 198.2 MB. Free memory was 174.3 MB in the beginning and 163.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 2000.16 ms. Allocated memory was 198.2 MB in the beginning and 271.1 MB in the end (delta: 72.9 MB). Free memory was 163.6 MB in the beginning and 102.5 MB in the end (delta: 61.2 MB). Peak memory consumption was 134.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 5]: 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] unsigned int x = 0; [L17] COND FALSE !(x < 0x0fffffff) [L21] CALL __VERIFIER_assert(!(x % 2)) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...