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/simple_4-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-11 16:11:57,566 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-11 16:11:57,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-11 16:11:57,580 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-11 16:11:57,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-11 16:11:57,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-11 16:11:57,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-11 16:11:57,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-11 16:11:57,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-11 16:11:57,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-11 16:11:57,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-11 16:11:57,590 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-11 16:11:57,590 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-11 16:11:57,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-11 16:11:57,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-11 16:11:57,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-11 16:11:57,595 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-11 16:11:57,596 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-11 16:11:57,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-11 16:11:57,600 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-11 16:11:57,602 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-11 16:11:57,603 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-11 16:11:57,604 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-11 16:11:57,605 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-11 16:11:57,608 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-11 16:11:57,612 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-11 16:11:57,613 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-11 16:11:57,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-11 16:11:57,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-11 16:11:57,615 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-11 16:11:57,616 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-11 16:11:57,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-11 16:11:57,617 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-11 16:11:57,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-11 16:11:57,618 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-11 16:11:57,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-11 16:11:57,620 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 16:11:57,647 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-11 16:11:57,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-11 16:11:57,648 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-11 16:11:57,648 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-11 16:11:57,650 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-11 16:11:57,650 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-11 16:11:57,650 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-11 16:11:57,650 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-11 16:11:57,651 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-11 16:11:57,651 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-11 16:11:57,652 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-11 16:11:57,652 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-11 16:11:57,652 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-11 16:11:57,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-11 16:11:57,653 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-11 16:11:57,653 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-11 16:11:57,653 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-11 16:11:57,654 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-11 16:11:57,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-11 16:11:57,655 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-11 16:11:57,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-11 16:11:57,655 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-11 16:11:57,655 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-11 16:11:57,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:11:57,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-11 16:11:57,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-11 16:11:57,657 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-11 16:11:57,657 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-11 16:11:57,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-11 16:11:57,657 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-11 16:11:57,703 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-11 16:11:57,715 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-11 16:11:57,719 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-11 16:11:57,720 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-11 16:11:57,721 INFO L275 PluginConnector]: CDTParser initialized [2019-09-11 16:11:57,721 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_4-1.c [2019-09-11 16:11:57,782 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e49842d90/195c553aef444db5abc037888a46c99e/FLAG7b64b9ea9 [2019-09-11 16:11:58,249 INFO L306 CDTParser]: Found 1 translation units. [2019-09-11 16:11:58,250 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_4-1.c [2019-09-11 16:11:58,256 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e49842d90/195c553aef444db5abc037888a46c99e/FLAG7b64b9ea9 [2019-09-11 16:11:58,665 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e49842d90/195c553aef444db5abc037888a46c99e [2019-09-11 16:11:58,675 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-11 16:11:58,677 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-11 16:11:58,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-11 16:11:58,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-11 16:11:58,682 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-11 16:11:58,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:11:58" (1/1) ... [2019-09-11 16:11:58,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e6a4f40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:11:58, skipping insertion in model container [2019-09-11 16:11:58,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:11:58" (1/1) ... [2019-09-11 16:11:58,693 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-11 16:11:58,709 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-11 16:11:58,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:11:58,865 INFO L188 MainTranslator]: Completed pre-run [2019-09-11 16:11:58,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:11:58,890 INFO L192 MainTranslator]: Completed translation [2019-09-11 16:11:58,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:11:58 WrapperNode [2019-09-11 16:11:58,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-11 16:11:58,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-11 16:11:58,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-11 16:11:58,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-11 16:11:58,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:11:58" (1/1) ... [2019-09-11 16:11:58,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:11:58" (1/1) ... [2019-09-11 16:11:58,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:11:58" (1/1) ... [2019-09-11 16:11:58,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:11:58" (1/1) ... [2019-09-11 16:11:58,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:11:58" (1/1) ... [2019-09-11 16:11:59,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:11:58" (1/1) ... [2019-09-11 16:11:59,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:11:58" (1/1) ... [2019-09-11 16:11:59,004 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-11 16:11:59,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-11 16:11:59,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-11 16:11:59,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-11 16:11:59,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:11:58" (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 16:11:59,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-11 16:11:59,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-11 16:11:59,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-11 16:11:59,059 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-11 16:11:59,059 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-11 16:11:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-11 16:11:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-11 16:11:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-11 16:11:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-11 16:11:59,228 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-11 16:11:59,228 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-11 16:11:59,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:11:59 BoogieIcfgContainer [2019-09-11 16:11:59,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-11 16:11:59,230 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-11 16:11:59,230 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-11 16:11:59,231 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-11 16:11:59,232 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:11:59" (1/1) ... [2019-09-11 16:11:59,257 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-11 16:11:59,330 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-11 16:12:00,777 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-11 16:12:00,798 INFO L272 AbstractInterpreter]: Visited 19 different actions 71 times. Merged at 4 different actions 16 times. Widened at 1 different actions 2 times. Performed 68 root evaluator evaluations with a maximum evaluation depth of 13. Performed 68 inverse root evaluator evaluations with a maximum inverse evaluation depth of 13. Found 5 fixpoints after 2 different actions. Largest state had 2 variables. [2019-09-11 16:12:00,799 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-11 16:12:00,803 INFO L168 Benchmark]: Toolchain (without parser) took 2124.10 ms. Allocated memory was 141.0 MB in the beginning and 303.0 MB in the end (delta: 162.0 MB). Free memory was 89.0 MB in the beginning and 201.1 MB in the end (delta: -112.2 MB). Peak memory consumption was 49.9 MB. Max. memory is 7.1 GB. [2019-09-11 16:12:00,805 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 141.0 MB. Free memory was 107.5 MB in the beginning and 107.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-11 16:12:00,807 INFO L168 Benchmark]: CACSL2BoogieTranslator took 213.20 ms. Allocated memory is still 141.0 MB. Free memory was 88.8 MB in the beginning and 79.7 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-09-11 16:12:00,809 INFO L168 Benchmark]: Boogie Preprocessor took 112.68 ms. Allocated memory was 141.0 MB in the beginning and 199.8 MB in the end (delta: 58.7 MB). Free memory was 79.7 MB in the beginning and 177.8 MB in the end (delta: -98.0 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2019-09-11 16:12:00,811 INFO L168 Benchmark]: RCFGBuilder took 225.46 ms. Allocated memory is still 199.8 MB. Free memory was 177.8 MB in the beginning and 167.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-09-11 16:12:00,813 INFO L168 Benchmark]: Abstract Interpretation took 1568.58 ms. Allocated memory was 199.8 MB in the beginning and 303.0 MB in the end (delta: 103.3 MB). Free memory was 167.1 MB in the beginning and 201.1 MB in the end (delta: -34.0 MB). Peak memory consumption was 69.2 MB. Max. memory is 7.1 GB. [2019-09-11 16:12:00,824 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 141.0 MB. Free memory was 107.5 MB in the beginning and 107.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 213.20 ms. Allocated memory is still 141.0 MB. Free memory was 88.8 MB in the beginning and 79.7 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.68 ms. Allocated memory was 141.0 MB in the beginning and 199.8 MB in the end (delta: 58.7 MB). Free memory was 79.7 MB in the beginning and 177.8 MB in the end (delta: -98.0 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 225.46 ms. Allocated memory is still 199.8 MB. Free memory was 177.8 MB in the beginning and 167.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 1568.58 ms. Allocated memory was 199.8 MB in the beginning and 303.0 MB in the end (delta: 103.3 MB). Free memory was 167.1 MB in the beginning and 201.1 MB in the end (delta: -34.0 MB). Peak memory consumption was 69.2 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: [L11] unsigned int x = 0x0ffffff1; [L13] COND FALSE !(x > 1) [L17] 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...