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/ldv-regression/test26-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-2989841 [2019-08-10 02:01:41,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-10 02:01:41,118 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-10 02:01:41,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-08-10 02:01:41,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-10 02:01:41,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-10 02:01:41,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-10 02:01:41,143 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-10 02:01:41,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-10 02:01:41,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-10 02:01:41,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-10 02:01:41,148 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-10 02:01:41,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-10 02:01:41,150 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-10 02:01:41,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-10 02:01:41,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-10 02:01:41,154 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-10 02:01:41,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-10 02:01:41,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-10 02:01:41,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-10 02:01:41,164 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 02:01:41,177 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-10 02:01:41,178 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-10 02:01:41,179 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-10 02:01:41,179 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-10 02:01:41,179 INFO L138 SettingsManager]: * Use SBE=true [2019-08-10 02:01:41,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-10 02:01:41,180 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-10 02:01:41,180 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-10 02:01:41,180 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-10 02:01:41,180 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-10 02:01:41,181 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-10 02:01:41,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-10 02:01:41,181 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-10 02:01:41,181 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-10 02:01:41,181 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-10 02:01:41,182 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-10 02:01:41,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-10 02:01:41,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-10 02:01:41,182 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-10 02:01:41,183 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-10 02:01:41,183 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-10 02:01:41,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-10 02:01:41,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-10 02:01:41,183 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-10 02:01:41,184 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-10 02:01:41,184 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-10 02:01:41,184 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-10 02:01:41,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-10 02:01:41,184 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-10 02:01:41,211 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-10 02:01:41,228 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-10 02:01:41,234 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-10 02:01:41,235 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-10 02:01:41,236 INFO L275 PluginConnector]: CDTParser initialized [2019-08-10 02:01:41,236 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test26-2.c [2019-08-10 02:01:41,302 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6691cc02/d7f94e82048b40dda9b2b5ae8364868c/FLAG7e934de27 [2019-08-10 02:01:41,691 INFO L306 CDTParser]: Found 1 translation units. [2019-08-10 02:01:41,692 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test26-2.c [2019-08-10 02:01:41,698 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6691cc02/d7f94e82048b40dda9b2b5ae8364868c/FLAG7e934de27 [2019-08-10 02:01:42,071 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6691cc02/d7f94e82048b40dda9b2b5ae8364868c [2019-08-10 02:01:42,081 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-10 02:01:42,083 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-10 02:01:42,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-10 02:01:42,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-10 02:01:42,087 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-10 02:01:42,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.08 02:01:42" (1/1) ... [2019-08-10 02:01:42,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2237cfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:01:42, skipping insertion in model container [2019-08-10 02:01:42,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.08 02:01:42" (1/1) ... [2019-08-10 02:01:42,099 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-10 02:01:42,117 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-10 02:01:42,339 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-10 02:01:42,365 INFO L188 MainTranslator]: Completed pre-run [2019-08-10 02:01:42,384 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-10 02:01:42,406 INFO L192 MainTranslator]: Completed translation [2019-08-10 02:01:42,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:01:42 WrapperNode [2019-08-10 02:01:42,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-10 02:01:42,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-10 02:01:42,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-10 02:01:42,408 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-10 02:01:42,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:01:42" (1/1) ... [2019-08-10 02:01:42,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:01:42" (1/1) ... [2019-08-10 02:01:42,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:01:42" (1/1) ... [2019-08-10 02:01:42,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:01:42" (1/1) ... [2019-08-10 02:01:42,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:01:42" (1/1) ... [2019-08-10 02:01:42,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:01:42" (1/1) ... [2019-08-10 02:01:42,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:01:42" (1/1) ... [2019-08-10 02:01:42,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-10 02:01:42,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-10 02:01:42,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-10 02:01:42,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-10 02:01:42,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:01:42" (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 02:01:42,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-10 02:01:42,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-10 02:01:42,619 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2019-08-10 02:01:42,619 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-10 02:01:42,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-10 02:01:42,619 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2019-08-10 02:01:42,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-08-10 02:01:42,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-08-10 02:01:42,619 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-10 02:01:42,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-10 02:01:42,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-08-10 02:01:42,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-08-10 02:01:42,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-10 02:01:42,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-08-10 02:01:42,840 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-10 02:01:42,840 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-10 02:01:42,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.08 02:01:42 BoogieIcfgContainer [2019-08-10 02:01:42,842 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-10 02:01:42,846 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-10 02:01:42,846 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-10 02:01:42,847 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-10 02:01:42,848 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.08 02:01:42" (1/1) ... [2019-08-10 02:01:43,210 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-10 02:01:43,218 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-10 02:01:43,220 INFO L168 Benchmark]: Toolchain (without parser) took 1137.38 ms. Allocated memory was 134.2 MB in the beginning and 200.3 MB in the end (delta: 66.1 MB). Free memory was 89.7 MB in the beginning and 141.6 MB in the end (delta: -51.9 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2019-08-10 02:01:43,221 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 134.2 MB. Free memory was 108.5 MB in the beginning and 108.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-10 02:01:43,222 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.29 ms. Allocated memory is still 134.2 MB. Free memory was 89.5 MB in the beginning and 79.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-08-10 02:01:43,223 INFO L168 Benchmark]: Boogie Preprocessor took 151.15 ms. Allocated memory was 134.2 MB in the beginning and 200.3 MB in the end (delta: 66.1 MB). Free memory was 79.7 MB in the beginning and 176.2 MB in the end (delta: -96.4 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2019-08-10 02:01:43,224 INFO L168 Benchmark]: RCFGBuilder took 283.67 ms. Allocated memory is still 200.3 MB. Free memory was 176.2 MB in the beginning and 163.8 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2019-08-10 02:01:43,225 INFO L168 Benchmark]: Symbolic Interpretation took 372.15 ms. Allocated memory is still 200.3 MB. Free memory was 163.8 MB in the beginning and 141.6 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2019-08-10 02:01:43,229 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 24]: 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 19#(and (not (= (select (select |#memory_int| |~#global~0.base|) (+ |~#global~0.offset| 4)) (select (select |#memory_int| main_~pd~0.base) main_~pd~0.offset))) (= |~#global~0.offset| 0) (< |~#global~0.base| |#StackHeapBarrier|) (= 1 (select (select |old(#memory_int)| |~#global~0.base|) (+ |~#global~0.offset| 4))) (= 0 |#NULL.base|) (= (select |#length| |~#global~0.base|) 8) (= 1 (select |#valid| |~#global~0.base|)) (= |~#global~0.base| main_~pd~0.base) (= (select (select |old(#memory_int)| |~#global~0.base|) |~#global~0.offset|) 0) (= 0 (select |#valid| 0)) (= |#NULL.offset| 0) (= |~#global~0.offset| main_~pd~0.offset)). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 134.2 MB. Free memory was 108.5 MB in the beginning and 108.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 323.29 ms. Allocated memory is still 134.2 MB. Free memory was 89.5 MB in the beginning and 79.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 151.15 ms. Allocated memory was 134.2 MB in the beginning and 200.3 MB in the end (delta: 66.1 MB). Free memory was 79.7 MB in the beginning and 176.2 MB in the end (delta: -96.4 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 283.67 ms. Allocated memory is still 200.3 MB. Free memory was 176.2 MB in the beginning and 163.8 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 372.15 ms. Allocated memory is still 200.3 MB. Free memory was 163.8 MB in the beginning and 141.6 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...