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/eca-rers2012/Problem01_label16.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-55cd5f5 [2019-08-14 10:59:45,415 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-14 10:59:45,417 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-14 10:59:45,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-14 10:59:45,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-14 10:59:45,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-14 10:59:45,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-14 10:59:45,432 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-14 10:59:45,434 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-14 10:59:45,435 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-14 10:59:45,436 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-14 10:59:45,437 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-14 10:59:45,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-14 10:59:45,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-14 10:59:45,439 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-14 10:59:45,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-14 10:59:45,441 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-14 10:59:45,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-14 10:59:45,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-14 10:59:45,445 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-14 10:59:45,447 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-14 10:59:45,448 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-14 10:59:45,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-14 10:59:45,450 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-14 10:59:45,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-14 10:59:45,455 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-14 10:59:45,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-14 10:59:45,456 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-14 10:59:45,457 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-14 10:59:45,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-14 10:59:45,458 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-14 10:59:45,459 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-14 10:59:45,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-14 10:59:45,460 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-14 10:59:45,460 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-14 10:59:45,461 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-14 10:59:45,462 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 10:59:45,476 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-14 10:59:45,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-14 10:59:45,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-14 10:59:45,478 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-14 10:59:45,478 INFO L138 SettingsManager]: * Use SBE=true [2019-08-14 10:59:45,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-14 10:59:45,478 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-14 10:59:45,479 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-14 10:59:45,479 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-14 10:59:45,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-14 10:59:45,479 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-14 10:59:45,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-14 10:59:45,480 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-14 10:59:45,480 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-14 10:59:45,480 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-14 10:59:45,480 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-14 10:59:45,480 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-14 10:59:45,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-14 10:59:45,481 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-14 10:59:45,481 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-14 10:59:45,481 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-14 10:59:45,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-14 10:59:45,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-14 10:59:45,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-14 10:59:45,482 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-14 10:59:45,482 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-14 10:59:45,482 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-14 10:59:45,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-14 10:59:45,483 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-14 10:59:45,510 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-14 10:59:45,523 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-14 10:59:45,526 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-14 10:59:45,527 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-14 10:59:45,528 INFO L275 PluginConnector]: CDTParser initialized [2019-08-14 10:59:45,528 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label16.c [2019-08-14 10:59:45,585 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a961d58e5/d0adf4d226174a72a659884780bfdbce/FLAGfc93e03c4 [2019-08-14 10:59:46,101 INFO L306 CDTParser]: Found 1 translation units. [2019-08-14 10:59:46,105 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label16.c [2019-08-14 10:59:46,121 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a961d58e5/d0adf4d226174a72a659884780bfdbce/FLAGfc93e03c4 [2019-08-14 10:59:46,406 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a961d58e5/d0adf4d226174a72a659884780bfdbce [2019-08-14 10:59:46,415 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-14 10:59:46,416 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-14 10:59:46,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-14 10:59:46,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-14 10:59:46,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-14 10:59:46,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 10:59:46" (1/1) ... [2019-08-14 10:59:46,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52a34399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 10:59:46, skipping insertion in model container [2019-08-14 10:59:46,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 10:59:46" (1/1) ... [2019-08-14 10:59:46,432 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-14 10:59:46,482 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-14 10:59:46,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-14 10:59:47,014 INFO L188 MainTranslator]: Completed pre-run [2019-08-14 10:59:47,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-14 10:59:47,181 INFO L192 MainTranslator]: Completed translation [2019-08-14 10:59:47,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 10:59:47 WrapperNode [2019-08-14 10:59:47,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-14 10:59:47,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-14 10:59:47,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-14 10:59:47,185 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-14 10:59:47,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 10:59:47" (1/1) ... [2019-08-14 10:59:47,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 10:59:47" (1/1) ... [2019-08-14 10:59:47,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 10:59:47" (1/1) ... [2019-08-14 10:59:47,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 10:59:47" (1/1) ... [2019-08-14 10:59:47,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 10:59:47" (1/1) ... [2019-08-14 10:59:47,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 10:59:47" (1/1) ... [2019-08-14 10:59:47,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 10:59:47" (1/1) ... [2019-08-14 10:59:47,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-14 10:59:47,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-14 10:59:47,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-14 10:59:47,298 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-14 10:59:47,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 10:59:47" (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 10:59:47,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-14 10:59:47,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-14 10:59:47,370 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-08-14 10:59:47,370 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-14 10:59:47,371 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-08-14 10:59:47,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-14 10:59:47,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-14 10:59:47,372 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-08-14 10:59:47,372 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-14 10:59:47,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-14 10:59:47,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-14 10:59:48,558 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-14 10:59:48,558 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-14 10:59:48,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 10:59:48 BoogieIcfgContainer [2019-08-14 10:59:48,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-14 10:59:48,564 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-14 10:59:48,564 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-14 10:59:48,565 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-14 10:59:48,566 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 10:59:48" (1/1) ... [2019-08-14 10:59:50,391 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-14 10:59:50,395 INFO L168 Benchmark]: Toolchain (without parser) took 3977.29 ms. Allocated memory was 130.5 MB in the beginning and 276.3 MB in the end (delta: 145.8 MB). Free memory was 84.8 MB in the beginning and 86.2 MB in the end (delta: -1.4 MB). Peak memory consumption was 158.0 MB. Max. memory is 7.1 GB. [2019-08-14 10:59:50,396 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 130.5 MB. Free memory was 104.7 MB in the beginning and 104.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-14 10:59:50,397 INFO L168 Benchmark]: CACSL2BoogieTranslator took 766.72 ms. Allocated memory was 130.5 MB in the beginning and 201.3 MB in the end (delta: 70.8 MB). Free memory was 84.6 MB in the beginning and 165.5 MB in the end (delta: -80.9 MB). Peak memory consumption was 38.6 MB. Max. memory is 7.1 GB. [2019-08-14 10:59:50,401 INFO L168 Benchmark]: Boogie Preprocessor took 112.55 ms. Allocated memory is still 201.3 MB. Free memory was 165.5 MB in the beginning and 160.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2019-08-14 10:59:50,403 INFO L168 Benchmark]: RCFGBuilder took 1262.76 ms. Allocated memory was 201.3 MB in the beginning and 220.7 MB in the end (delta: 19.4 MB). Free memory was 160.6 MB in the beginning and 176.9 MB in the end (delta: -16.3 MB). Peak memory consumption was 95.3 MB. Max. memory is 7.1 GB. [2019-08-14 10:59:50,404 INFO L168 Benchmark]: Symbolic Interpretation took 1827.48 ms. Allocated memory was 220.7 MB in the beginning and 276.3 MB in the end (delta: 55.6 MB). Free memory was 176.9 MB in the beginning and 86.2 MB in the end (delta: 90.7 MB). Peak memory consumption was 159.9 MB. Max. memory is 7.1 GB. [2019-08-14 10:59:50,414 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 566]: 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 30955#(and (= 1 ~a7~0) (= ~a12~0 8) (= ~a21~0 1) (= ~a20~0 1) (not (= ~a17~0 1)) (= ~a16~0 6) (= 14 ~a8~0)). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 130.5 MB. Free memory was 104.7 MB in the beginning and 104.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 766.72 ms. Allocated memory was 130.5 MB in the beginning and 201.3 MB in the end (delta: 70.8 MB). Free memory was 84.6 MB in the beginning and 165.5 MB in the end (delta: -80.9 MB). Peak memory consumption was 38.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.55 ms. Allocated memory is still 201.3 MB. Free memory was 165.5 MB in the beginning and 160.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1262.76 ms. Allocated memory was 201.3 MB in the beginning and 220.7 MB in the end (delta: 19.4 MB). Free memory was 160.6 MB in the beginning and 176.9 MB in the end (delta: -16.3 MB). Peak memory consumption was 95.3 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 1827.48 ms. Allocated memory was 220.7 MB in the beginning and 276.3 MB in the end (delta: 55.6 MB). Free memory was 176.9 MB in the beginning and 86.2 MB in the end (delta: 90.7 MB). Peak memory consumption was 159.9 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...