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/phases_2-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c6af20d [2019-09-03 21:26:09,689 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-03 21:26:09,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-03 21:26:09,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-03 21:26:09,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-03 21:26:09,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-03 21:26:09,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-03 21:26:09,715 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-03 21:26:09,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-03 21:26:09,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-03 21:26:09,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-03 21:26:09,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-03 21:26:09,722 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-03 21:26:09,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-03 21:26:09,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-03 21:26:09,725 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-03 21:26:09,727 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-03 21:26:09,735 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-03 21:26:09,736 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-03 21:26:09,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-03 21:26:09,737 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 21:26:09,752 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-03 21:26:09,752 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-03 21:26:09,753 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-03 21:26:09,753 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-03 21:26:09,753 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-03 21:26:09,754 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-03 21:26:09,754 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-03 21:26:09,754 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-03 21:26:09,754 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-03 21:26:09,754 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-03 21:26:09,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-03 21:26:09,755 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-03 21:26:09,755 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-03 21:26:09,756 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-03 21:26:09,756 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-03 21:26:09,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-03 21:26:09,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-03 21:26:09,756 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-03 21:26:09,757 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-03 21:26:09,757 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-03 21:26:09,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-03 21:26:09,757 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-03 21:26:09,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-03 21:26:09,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-03 21:26:09,758 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-03 21:26:09,758 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-03 21:26:09,758 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-03 21:26:09,758 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-03 21:26:09,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-03 21:26:09,759 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-03 21:26:09,786 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-03 21:26:09,798 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-03 21:26:09,802 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-03 21:26:09,804 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-03 21:26:09,804 INFO L275 PluginConnector]: CDTParser initialized [2019-09-03 21:26:09,805 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/phases_2-2.c [2019-09-03 21:26:09,867 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f4e39763/477d796387a4464fa4b3198f1aa4808d/FLAGa7ee9066d [2019-09-03 21:26:10,326 INFO L306 CDTParser]: Found 1 translation units. [2019-09-03 21:26:10,327 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/phases_2-2.c [2019-09-03 21:26:10,333 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f4e39763/477d796387a4464fa4b3198f1aa4808d/FLAGa7ee9066d [2019-09-03 21:26:10,732 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f4e39763/477d796387a4464fa4b3198f1aa4808d [2019-09-03 21:26:10,740 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-03 21:26:10,742 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-03 21:26:10,743 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-03 21:26:10,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-03 21:26:10,746 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-03 21:26:10,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:26:10" (1/1) ... [2019-09-03 21:26:10,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d455d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:10, skipping insertion in model container [2019-09-03 21:26:10,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:26:10" (1/1) ... [2019-09-03 21:26:10,757 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-03 21:26:10,775 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-03 21:26:10,971 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:26:10,975 INFO L188 MainTranslator]: Completed pre-run [2019-09-03 21:26:11,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:26:11,016 INFO L192 MainTranslator]: Completed translation [2019-09-03 21:26:11,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:11 WrapperNode [2019-09-03 21:26:11,017 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-03 21:26:11,018 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-03 21:26:11,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-03 21:26:11,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-03 21:26:11,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:11" (1/1) ... [2019-09-03 21:26:11,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:11" (1/1) ... [2019-09-03 21:26:11,121 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:11" (1/1) ... [2019-09-03 21:26:11,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:11" (1/1) ... [2019-09-03 21:26:11,125 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:11" (1/1) ... [2019-09-03 21:26:11,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:11" (1/1) ... [2019-09-03 21:26:11,131 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:11" (1/1) ... [2019-09-03 21:26:11,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-03 21:26:11,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-03 21:26:11,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-03 21:26:11,136 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-03 21:26:11,137 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:11" (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 21:26:11,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-03 21:26:11,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-03 21:26:11,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-03 21:26:11,190 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-03 21:26:11,190 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-03 21:26:11,190 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-03 21:26:11,190 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-03 21:26:11,191 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-03 21:26:11,191 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-03 21:26:11,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-03 21:26:11,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-03 21:26:11,361 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-03 21:26:11,362 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-03 21:26:11,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:26:11 BoogieIcfgContainer [2019-09-03 21:26:11,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-03 21:26:11,364 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-03 21:26:11,364 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-03 21:26:11,364 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-03 21:26:11,365 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:26:11" (1/1) ... [2019-09-03 21:26:11,392 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-03 21:26:11,459 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-03 21:26:11,747 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-03 21:26:11,774 INFO L272 AbstractInterpreter]: Visited 23 different actions 86 times. Merged at 8 different actions 24 times. Widened at 1 different actions 2 times. Performed 97 root evaluator evaluations with a maximum evaluation depth of 12. Performed 97 inverse root evaluator evaluations with a maximum inverse evaluation depth of 12. Found 10 fixpoints after 3 different actions. Largest state had 5 variables. [2019-09-03 21:26:11,774 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-03 21:26:11,779 INFO L168 Benchmark]: Toolchain (without parser) took 1033.92 ms. Allocated memory was 134.7 MB in the beginning and 198.2 MB in the end (delta: 63.4 MB). Free memory was 90.3 MB in the beginning and 124.8 MB in the end (delta: -34.5 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:11,780 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 134.7 MB. Free memory was 109.1 MB in the beginning and 108.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-03 21:26:11,782 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.94 ms. Allocated memory is still 134.7 MB. Free memory was 90.1 MB in the beginning and 80.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:11,785 INFO L168 Benchmark]: Boogie Preprocessor took 117.61 ms. Allocated memory was 134.7 MB in the beginning and 198.2 MB in the end (delta: 63.4 MB). Free memory was 80.9 MB in the beginning and 174.8 MB in the end (delta: -93.9 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:11,787 INFO L168 Benchmark]: RCFGBuilder took 227.47 ms. Allocated memory is still 198.2 MB. Free memory was 174.8 MB in the beginning and 163.4 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:11,788 INFO L168 Benchmark]: Abstract Interpretation took 410.33 ms. Allocated memory is still 198.2 MB. Free memory was 162.8 MB in the beginning and 124.8 MB in the end (delta: 38.0 MB). Peak memory consumption was 38.0 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:11,798 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 134.7 MB. Free memory was 109.1 MB in the beginning and 108.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 274.94 ms. Allocated memory is still 134.7 MB. Free memory was 90.1 MB in the beginning and 80.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.61 ms. Allocated memory was 134.7 MB in the beginning and 198.2 MB in the end (delta: 63.4 MB). Free memory was 80.9 MB in the beginning and 174.8 MB in the end (delta: -93.9 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 227.47 ms. Allocated memory is still 198.2 MB. Free memory was 174.8 MB in the beginning and 163.4 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 410.33 ms. Allocated memory is still 198.2 MB. Free memory was 162.8 MB in the beginning and 124.8 MB in the end (delta: 38.0 MB). Peak memory consumption was 38.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 7]: 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: [L13] unsigned int x = 1; [L14] unsigned int y = __VERIFIER_nondet_uint(); [L16] COND FALSE !(!(y > 0)) [L18] COND FALSE !(x < y) [L26] CALL __VERIFIER_assert(x == y) [L6] COND TRUE !(cond) [L7] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...