java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/down.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-55cd5f5 [2019-08-14 20:42:38,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-14 20:42:38,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-14 20:42:38,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-14 20:42:38,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-14 20:42:38,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-14 20:42:38,845 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-14 20:42:38,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-14 20:42:38,848 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-14 20:42:38,849 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-14 20:42:38,850 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-14 20:42:38,852 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-14 20:42:38,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-14 20:42:38,854 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-14 20:42:38,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-14 20:42:38,861 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-14 20:42:38,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-14 20:42:38,863 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-14 20:42:38,866 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-14 20:42:38,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-14 20:42:38,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-14 20:42:38,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-14 20:42:38,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-14 20:42:38,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-14 20:42:38,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-14 20:42:38,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-14 20:42:38,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-14 20:42:38,888 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-14 20:42:38,888 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-14 20:42:38,889 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-14 20:42:38,890 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-14 20:42:38,890 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-14 20:42:38,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-14 20:42:38,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-14 20:42:38,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-14 20:42:38,892 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-14 20:42:38,896 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-08-14 20:42:38,910 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-14 20:42:38,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-14 20:42:38,912 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-14 20:42:38,912 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-14 20:42:38,912 INFO L138 SettingsManager]: * Use SBE=true [2019-08-14 20:42:38,912 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-14 20:42:38,913 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-14 20:42:38,913 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-14 20:42:38,913 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-14 20:42:38,913 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-14 20:42:38,913 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-14 20:42:38,913 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-14 20:42:38,914 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-14 20:42:38,914 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-14 20:42:38,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-14 20:42:38,914 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-14 20:42:38,914 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-14 20:42:38,915 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-14 20:42:38,915 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-14 20:42:38,915 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-14 20:42:38,915 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-14 20:42:38,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-14 20:42:38,916 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-14 20:42:38,916 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-14 20:42:38,916 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-14 20:42:38,916 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-14 20:42:38,916 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-14 20:42:38,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-14 20:42:38,917 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-14 20:42:38,950 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-14 20:42:38,961 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-14 20:42:38,965 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-14 20:42:38,966 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-14 20:42:38,967 INFO L275 PluginConnector]: CDTParser initialized [2019-08-14 20:42:38,967 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/down.i [2019-08-14 20:42:39,026 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78a1483d5/c5a72d430ace4a8a892c9131d984fbcd/FLAGdc8731f35 [2019-08-14 20:42:39,395 INFO L306 CDTParser]: Found 1 translation units. [2019-08-14 20:42:39,396 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/down.i [2019-08-14 20:42:39,402 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78a1483d5/c5a72d430ace4a8a892c9131d984fbcd/FLAGdc8731f35 [2019-08-14 20:42:39,783 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78a1483d5/c5a72d430ace4a8a892c9131d984fbcd [2019-08-14 20:42:39,792 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-14 20:42:39,794 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-14 20:42:39,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-14 20:42:39,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-14 20:42:39,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-14 20:42:39,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 08:42:39" (1/1) ... [2019-08-14 20:42:39,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e592df6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:42:39, skipping insertion in model container [2019-08-14 20:42:39,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 08:42:39" (1/1) ... [2019-08-14 20:42:39,810 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-14 20:42:39,827 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-14 20:42:39,977 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-14 20:42:39,981 INFO L188 MainTranslator]: Completed pre-run [2019-08-14 20:42:39,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-14 20:42:40,008 INFO L192 MainTranslator]: Completed translation [2019-08-14 20:42:40,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:42:40 WrapperNode [2019-08-14 20:42:40,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-14 20:42:40,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-14 20:42:40,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-14 20:42:40,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-14 20:42:40,019 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:42:40" (1/1) ... [2019-08-14 20:42:40,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:42:40" (1/1) ... [2019-08-14 20:42:40,121 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:42:40" (1/1) ... [2019-08-14 20:42:40,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:42:40" (1/1) ... [2019-08-14 20:42:40,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:42:40" (1/1) ... [2019-08-14 20:42:40,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:42:40" (1/1) ... [2019-08-14 20:42:40,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:42:40" (1/1) ... [2019-08-14 20:42:40,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-14 20:42:40,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-14 20:42:40,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-14 20:42:40,142 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-14 20:42:40,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:42:40" (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 [2019-08-14 20:42:40,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-14 20:42:40,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-14 20:42:40,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-08-14 20:42:40,207 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-14 20:42:40,207 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-14 20:42:40,207 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-08-14 20:42:40,207 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-08-14 20:42:40,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-14 20:42:40,209 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-14 20:42:40,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-14 20:42:40,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-14 20:42:40,442 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-14 20:42:40,442 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-08-14 20:42:40,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 08:42:40 BoogieIcfgContainer [2019-08-14 20:42:40,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-14 20:42:40,444 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-14 20:42:40,444 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-14 20:42:40,445 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-14 20:42:40,452 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 08:42:40" (1/1) ... [2019-08-14 20:42:40,753 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-14 20:42:40,758 INFO L168 Benchmark]: Toolchain (without parser) took 960.61 ms. Allocated memory was 134.7 MB in the beginning and 202.4 MB in the end (delta: 67.6 MB). Free memory was 88.8 MB in the beginning and 160.3 MB in the end (delta: -71.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-14 20:42:40,759 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 134.7 MB. Free memory was 107.3 MB in the beginning and 107.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-14 20:42:40,760 INFO L168 Benchmark]: CACSL2BoogieTranslator took 213.92 ms. Allocated memory is still 134.7 MB. Free memory was 88.6 MB in the beginning and 79.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-08-14 20:42:40,763 INFO L168 Benchmark]: Boogie Preprocessor took 132.77 ms. Allocated memory was 134.7 MB in the beginning and 202.4 MB in the end (delta: 67.6 MB). Free memory was 79.3 MB in the beginning and 179.1 MB in the end (delta: -99.8 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2019-08-14 20:42:40,766 INFO L168 Benchmark]: RCFGBuilder took 301.86 ms. Allocated memory is still 202.4 MB. Free memory was 179.1 MB in the beginning and 167.3 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2019-08-14 20:42:40,767 INFO L168 Benchmark]: Symbolic Interpretation took 308.71 ms. Allocated memory is still 202.4 MB. Free memory was 167.3 MB in the beginning and 160.3 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 7.1 GB. [2019-08-14 20:42:40,778 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 5]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 67#(and (or (= |__VERIFIER_assert_#in~cond| 1) (= |__VERIFIER_assert_#in~cond| 0)) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)). Possible FailurePath: * 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 107.3 MB in the beginning and 107.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 213.92 ms. Allocated memory is still 134.7 MB. Free memory was 88.6 MB in the beginning and 79.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 132.77 ms. Allocated memory was 134.7 MB in the beginning and 202.4 MB in the end (delta: 67.6 MB). Free memory was 79.3 MB in the beginning and 179.1 MB in the end (delta: -99.8 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 301.86 ms. Allocated memory is still 202.4 MB. Free memory was 179.1 MB in the beginning and 167.3 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 308.71 ms. Allocated memory is still 202.4 MB. Free memory was 167.3 MB in the beginning and 160.3 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...