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-acceleration/simple_4-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-2989841 [2019-08-10 02:24:26,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-10 02:24:26,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-10 02:24:26,177 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-10 02:24:26,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-10 02:24:26,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-10 02:24:26,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-10 02:24:26,182 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-10 02:24:26,184 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-10 02:24:26,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-10 02:24:26,185 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-10 02:24:26,187 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-10 02:24:26,187 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-10 02:24:26,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-10 02:24:26,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-10 02:24:26,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-10 02:24:26,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-10 02:24:26,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-10 02:24:26,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-10 02:24:26,198 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-10 02:24:26,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-10 02:24:26,206 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-10 02:24:26,208 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-10 02:24:26,209 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-10 02:24:26,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-10 02:24:26,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-10 02:24:26,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-10 02:24:26,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-10 02:24:26,230 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 [2019-08-10 02:24:26,252 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-10 02:24:26,252 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-10 02:24:26,255 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-10 02:24:26,255 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-10 02:24:26,255 INFO L138 SettingsManager]: * Use SBE=true [2019-08-10 02:24:26,255 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-10 02:24:26,256 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-10 02:24:26,256 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-10 02:24:26,256 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-10 02:24:26,256 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-10 02:24:26,258 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-10 02:24:26,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-10 02:24:26,259 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-10 02:24:26,259 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-10 02:24:26,259 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-10 02:24:26,259 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-10 02:24:26,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-10 02:24:26,260 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-10 02:24:26,260 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-10 02:24:26,260 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-10 02:24:26,260 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-10 02:24:26,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-10 02:24:26,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-10 02:24:26,261 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-10 02:24:26,261 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-10 02:24:26,261 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-10 02:24:26,262 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-10 02:24:26,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-10 02:24:26,262 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-10 02:24:26,314 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-10 02:24:26,331 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-10 02:24:26,334 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-10 02:24:26,335 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-10 02:24:26,336 INFO L275 PluginConnector]: CDTParser initialized [2019-08-10 02:24:26,336 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_4-2.c [2019-08-10 02:24:26,407 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7af9ea899/bb46e823e06e4adeb2aea1851e255116/FLAG1872c27c9 [2019-08-10 02:24:26,876 INFO L306 CDTParser]: Found 1 translation units. [2019-08-10 02:24:26,876 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_4-2.c [2019-08-10 02:24:26,883 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7af9ea899/bb46e823e06e4adeb2aea1851e255116/FLAG1872c27c9 [2019-08-10 02:24:27,286 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7af9ea899/bb46e823e06e4adeb2aea1851e255116 [2019-08-10 02:24:27,295 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-10 02:24:27,296 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-10 02:24:27,297 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-10 02:24:27,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-10 02:24:27,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-10 02:24:27,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.08 02:24:27" (1/1) ... [2019-08-10 02:24:27,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7111881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:24:27, skipping insertion in model container [2019-08-10 02:24:27,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.08 02:24:27" (1/1) ... [2019-08-10 02:24:27,312 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-10 02:24:27,328 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-10 02:24:27,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-10 02:24:27,482 INFO L188 MainTranslator]: Completed pre-run [2019-08-10 02:24:27,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-10 02:24:27,507 INFO L192 MainTranslator]: Completed translation [2019-08-10 02:24:27,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:24:27 WrapperNode [2019-08-10 02:24:27,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-10 02:24:27,509 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-10 02:24:27,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-10 02:24:27,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-10 02:24:27,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:24:27" (1/1) ... [2019-08-10 02:24:27,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:24:27" (1/1) ... [2019-08-10 02:24:27,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:24:27" (1/1) ... [2019-08-10 02:24:27,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:24:27" (1/1) ... [2019-08-10 02:24:27,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:24:27" (1/1) ... [2019-08-10 02:24:27,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:24:27" (1/1) ... [2019-08-10 02:24:27,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:24:27" (1/1) ... [2019-08-10 02:24:27,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-10 02:24:27,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-10 02:24:27,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-10 02:24:27,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-10 02:24:27,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:24:27" (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 [2019-08-10 02:24:27,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-10 02:24:27,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-10 02:24:27,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-08-10 02:24:27,675 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-10 02:24:27,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-10 02:24:27,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-08-10 02:24:27,676 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-10 02:24:27,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-10 02:24:27,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-10 02:24:27,823 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-10 02:24:27,823 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-10 02:24:27,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.08 02:24:27 BoogieIcfgContainer [2019-08-10 02:24:27,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-10 02:24:27,825 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-10 02:24:27,825 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-10 02:24:27,825 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-10 02:24:27,826 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.08 02:24:27" (1/1) ... [2019-08-10 02:24:27,962 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-10 02:24:27,968 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-10 02:24:27,971 INFO L168 Benchmark]: Toolchain (without parser) took 674.04 ms. Allocated memory was 132.6 MB in the beginning and 199.2 MB in the end (delta: 66.6 MB). Free memory was 87.4 MB in the beginning and 158.6 MB in the end (delta: -71.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-10 02:24:27,972 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 132.6 MB. Free memory was 105.6 MB in the beginning and 105.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-10 02:24:27,973 INFO L168 Benchmark]: CACSL2BoogieTranslator took 210.83 ms. Allocated memory is still 132.6 MB. Free memory was 87.2 MB in the beginning and 78.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-08-10 02:24:27,974 INFO L168 Benchmark]: Boogie Preprocessor took 107.27 ms. Allocated memory was 132.6 MB in the beginning and 199.2 MB in the end (delta: 66.6 MB). Free memory was 78.2 MB in the beginning and 176.1 MB in the end (delta: -97.9 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2019-08-10 02:24:27,975 INFO L168 Benchmark]: RCFGBuilder took 208.49 ms. Allocated memory is still 199.2 MB. Free memory was 176.1 MB in the beginning and 165.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2019-08-10 02:24:27,976 INFO L168 Benchmark]: Symbolic Interpretation took 143.61 ms. Allocated memory is still 199.2 MB. Free memory was 165.2 MB in the beginning and 158.6 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 7.1 GB. [2019-08-10 02:24:27,980 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: Interpreter reached this location of interest. Location might be reachable. Predicate is 34#(and (= |__VERIFIER_assert_#in~cond| 1) (= 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 0.39 ms. Allocated memory is still 132.6 MB. Free memory was 105.6 MB in the beginning and 105.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 210.83 ms. Allocated memory is still 132.6 MB. Free memory was 87.2 MB in the beginning and 78.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.27 ms. Allocated memory was 132.6 MB in the beginning and 199.2 MB in the end (delta: 66.6 MB). Free memory was 78.2 MB in the beginning and 176.1 MB in the end (delta: -97.9 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 208.49 ms. Allocated memory is still 199.2 MB. Free memory was 176.1 MB in the beginning and 165.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 143.61 ms. Allocated memory is still 199.2 MB. Free memory was 165.2 MB in the beginning and 158.6 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...