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_2-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:47:26,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:47:26,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:47:26,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-20 13:47:26,664 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:47:26,665 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:47:26,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:47:26,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:47:26,673 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:47:26,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:47:26,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:47:26,683 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:47:26,688 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:47:26,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:47:26,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:47:26,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:47:26,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 13:47:26,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:47:26,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:47:26,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:47:26,712 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 13:47:26,733 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:47:26,733 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:47:26,734 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:47:26,734 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:47:26,735 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:47:26,735 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:47:26,736 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:47:26,736 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:47:26,736 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:47:26,736 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:47:26,738 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:47:26,739 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:47:26,739 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:47:26,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:47:26,740 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:47:26,740 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:47:26,740 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:47:26,740 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:47:26,740 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:47:26,741 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:47:26,741 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:47:26,741 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:47:26,741 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:47:26,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:47:26,742 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:47:26,742 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:47:26,742 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:47:26,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:47:26,743 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:47:26,743 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:47:26,789 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:47:26,801 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:47:26,805 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:47:26,806 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:47:26,806 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:47:26,807 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/phases_2-1.c [2019-09-20 13:47:26,866 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ea4097d4/e5fefa9f775a43ae989cb41cae818383/FLAGc130118d0 [2019-09-20 13:47:27,292 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:47:27,293 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/phases_2-1.c [2019-09-20 13:47:27,299 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ea4097d4/e5fefa9f775a43ae989cb41cae818383/FLAGc130118d0 [2019-09-20 13:47:27,718 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ea4097d4/e5fefa9f775a43ae989cb41cae818383 [2019-09-20 13:47:27,727 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:47:27,728 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:47:27,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:47:27,729 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:47:27,733 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:47:27,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:47:27" (1/1) ... [2019-09-20 13:47:27,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f8701c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:27, skipping insertion in model container [2019-09-20 13:47:27,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:47:27" (1/1) ... [2019-09-20 13:47:27,744 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:47:27,762 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:47:27,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:47:27,937 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:47:27,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:47:27,963 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:47:27,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:27 WrapperNode [2019-09-20 13:47:27,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:47:27,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:47:27,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:47:27,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:47:28,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:27" (1/1) ... [2019-09-20 13:47:28,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:27" (1/1) ... [2019-09-20 13:47:28,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:27" (1/1) ... [2019-09-20 13:47:28,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:27" (1/1) ... [2019-09-20 13:47:28,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:27" (1/1) ... [2019-09-20 13:47:28,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:27" (1/1) ... [2019-09-20 13:47:28,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:27" (1/1) ... [2019-09-20 13:47:28,080 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:47:28,081 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:47:28,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:47:28,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:47:28,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:27" (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 13:47:28,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:47:28,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:47:28,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 13:47:28,138 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:47:28,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:47:28,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-20 13:47:28,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-20 13:47:28,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 13:47:28,139 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:47:28,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:47:28,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:47:28,309 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:47:28,310 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 13:47:28,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:47:28 BoogieIcfgContainer [2019-09-20 13:47:28,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:47:28,312 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-20 13:47:28,312 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-20 13:47:28,312 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-20 13:47:28,313 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:47:28" (1/1) ... [2019-09-20 13:47:28,341 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:47:28,409 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-20 13:47:28,742 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-20 13:47:28,781 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. [2019-09-20 13:47:28,783 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-20 13:47:28,789 INFO L168 Benchmark]: Toolchain (without parser) took 1056.85 ms. Allocated memory was 130.0 MB in the beginning and 196.1 MB in the end (delta: 66.1 MB). Free memory was 85.4 MB in the beginning and 119.9 MB in the end (delta: -34.5 MB). Peak memory consumption was 31.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:28,793 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 130.0 MB. Free memory was 104.2 MB in the beginning and 104.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:47:28,794 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.09 ms. Allocated memory is still 130.0 MB. Free memory was 85.2 MB in the beginning and 76.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:28,798 INFO L168 Benchmark]: Boogie Preprocessor took 116.15 ms. Allocated memory was 130.0 MB in the beginning and 196.1 MB in the end (delta: 66.1 MB). Free memory was 76.1 MB in the beginning and 172.3 MB in the end (delta: -96.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:28,799 INFO L168 Benchmark]: RCFGBuilder took 230.40 ms. Allocated memory is still 196.1 MB. Free memory was 172.3 MB in the beginning and 160.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:28,801 INFO L168 Benchmark]: Abstract Interpretation took 471.60 ms. Allocated memory is still 196.1 MB. Free memory was 160.8 MB in the beginning and 119.9 MB in the end (delta: 40.9 MB). Peak memory consumption was 40.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:28,808 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 130.0 MB. Free memory was 104.2 MB in the beginning and 104.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 235.09 ms. Allocated memory is still 130.0 MB. Free memory was 85.2 MB in the beginning and 76.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.15 ms. Allocated memory was 130.0 MB in the beginning and 196.1 MB in the end (delta: 66.1 MB). Free memory was 76.1 MB in the beginning and 172.3 MB in the end (delta: -96.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 230.40 ms. Allocated memory is still 196.1 MB. Free memory was 172.3 MB in the beginning and 160.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 471.60 ms. Allocated memory is still 196.1 MB. Free memory was 160.8 MB in the beginning and 119.9 MB in the end (delta: 40.9 MB). Peak memory consumption was 40.9 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...