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/Problem02_label38.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f3d0b09 [2019-08-08 10:00:49,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-08 10:00:49,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-08 10:00:49,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-08 10:00:49,990 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-08 10:00:49,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-08 10:00:49,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-08 10:00:49,994 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-08 10:00:49,995 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-08 10:00:49,996 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-08 10:00:49,997 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-08 10:00:49,998 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-08 10:00:49,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-08 10:00:49,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-08 10:00:50,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-08 10:00:50,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-08 10:00:50,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-08 10:00:50,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-08 10:00:50,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-08 10:00:50,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-08 10:00:50,008 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-08 10:00:50,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-08 10:00:50,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-08 10:00:50,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-08 10:00:50,013 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-08 10:00:50,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-08 10:00:50,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-08 10:00:50,017 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-08 10:00:50,018 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-08 10:00:50,019 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-08 10:00:50,019 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-08 10:00:50,020 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-08 10:00:50,020 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-08 10:00:50,020 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-08 10:00:50,021 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-08 10:00:50,022 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-08 10:00:50,023 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 [2019-08-08 10:00:50,037 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-08 10:00:50,037 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-08 10:00:50,039 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-08 10:00:50,039 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-08 10:00:50,041 INFO L138 SettingsManager]: * Use SBE=true [2019-08-08 10:00:50,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-08 10:00:50,041 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-08 10:00:50,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-08 10:00:50,042 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-08 10:00:50,042 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-08 10:00:50,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-08 10:00:50,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-08 10:00:50,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-08 10:00:50,043 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-08 10:00:50,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-08 10:00:50,044 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-08 10:00:50,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-08 10:00:50,044 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-08 10:00:50,044 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-08 10:00:50,045 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-08 10:00:50,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-08 10:00:50,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-08 10:00:50,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-08 10:00:50,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-08 10:00:50,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-08 10:00:50,046 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-08 10:00:50,046 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-08 10:00:50,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-08 10:00:50,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-08 10:00:50,083 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-08 10:00:50,099 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-08 10:00:50,107 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-08 10:00:50,109 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-08 10:00:50,110 INFO L275 PluginConnector]: CDTParser initialized [2019-08-08 10:00:50,110 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label38.c [2019-08-08 10:00:50,172 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91dcaed76/7f2346c1868e4e4c962853175490a8dd/FLAGe98d21035 [2019-08-08 10:00:50,733 INFO L306 CDTParser]: Found 1 translation units. [2019-08-08 10:00:50,734 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label38.c [2019-08-08 10:00:50,750 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91dcaed76/7f2346c1868e4e4c962853175490a8dd/FLAGe98d21035 [2019-08-08 10:00:50,998 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91dcaed76/7f2346c1868e4e4c962853175490a8dd [2019-08-08 10:00:51,007 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-08 10:00:51,009 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-08 10:00:51,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-08 10:00:51,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-08 10:00:51,014 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-08 10:00:51,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 10:00:51" (1/1) ... [2019-08-08 10:00:51,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20e0ff83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:00:51, skipping insertion in model container [2019-08-08 10:00:51,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 10:00:51" (1/1) ... [2019-08-08 10:00:51,026 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-08 10:00:51,079 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-08 10:00:51,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-08 10:00:51,602 INFO L188 MainTranslator]: Completed pre-run [2019-08-08 10:00:51,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-08 10:00:51,729 INFO L192 MainTranslator]: Completed translation [2019-08-08 10:00:51,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:00:51 WrapperNode [2019-08-08 10:00:51,729 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-08 10:00:51,730 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-08 10:00:51,730 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-08 10:00:51,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-08 10:00:51,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:00:51" (1/1) ... [2019-08-08 10:00:51,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:00:51" (1/1) ... [2019-08-08 10:00:51,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:00:51" (1/1) ... [2019-08-08 10:00:51,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:00:51" (1/1) ... [2019-08-08 10:00:51,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:00:51" (1/1) ... [2019-08-08 10:00:51,819 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:00:51" (1/1) ... [2019-08-08 10:00:51,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:00:51" (1/1) ... [2019-08-08 10:00:51,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-08 10:00:51,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-08 10:00:51,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-08 10:00:51,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-08 10:00:51,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:00:51" (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 [2019-08-08 10:00:51,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-08 10:00:51,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-08 10:00:51,893 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-08-08 10:00:51,893 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-08 10:00:51,894 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-08-08 10:00:51,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-08 10:00:51,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-08 10:00:51,894 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-08-08 10:00:51,894 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-08 10:00:51,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-08 10:00:51,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-08 10:00:55,288 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-08 10:00:55,288 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-08 10:00:55,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 10:00:55 BoogieIcfgContainer [2019-08-08 10:00:55,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-08 10:00:55,290 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-08 10:00:55,291 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-08 10:00:55,291 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-08 10:00:55,292 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 10:00:55" (1/1) ... [2019-08-08 10:00:55,305 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-08 10:00:55,308 INFO L155 IcfgInterpreter]: Building call graph [2019-08-08 10:00:55,318 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-08 10:00:55,326 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-08 10:00:55,328 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-08 10:00:55,390 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 59 [2019-08-08 10:00:56,454 INFO L185 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 103 [2019-08-08 10:00:56,610 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-08 10:00:56,612 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-08 10:00:56,615 INFO L179 IcfgInterpreter]: Location calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION has predicate 14323#(and (not (= ~a19~0 1)) (= ~a28~0 11) (= ~a17~0 7) (not (= ~a25~0 1)) (= ~a21~0 1) (not (= ~a11~0 1))) [2019-08-08 10:00:56,617 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-08 10:00:56,625 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-08 10:00:56,628 INFO L168 Benchmark]: Toolchain (without parser) took 5618.22 ms. Allocated memory was 132.1 MB in the beginning and 271.6 MB in the end (delta: 139.5 MB). Free memory was 85.1 MB in the beginning and 112.1 MB in the end (delta: -26.9 MB). Peak memory consumption was 112.5 MB. Max. memory is 7.1 GB. [2019-08-08 10:00:56,630 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 132.1 MB. Free memory was 105.0 MB in the beginning and 104.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-08-08 10:00:56,632 INFO L168 Benchmark]: CACSL2BoogieTranslator took 719.85 ms. Allocated memory was 132.1 MB in the beginning and 202.9 MB in the end (delta: 70.8 MB). Free memory was 84.9 MB in the beginning and 167.6 MB in the end (delta: -82.7 MB). Peak memory consumption was 36.8 MB. Max. memory is 7.1 GB. [2019-08-08 10:00:56,633 INFO L168 Benchmark]: Boogie Preprocessor took 100.51 ms. Allocated memory is still 202.9 MB. Free memory was 167.6 MB in the beginning and 162.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2019-08-08 10:00:56,635 INFO L168 Benchmark]: RCFGBuilder took 3458.92 ms. Allocated memory was 202.9 MB in the beginning and 224.9 MB in the end (delta: 22.0 MB). Free memory was 162.9 MB in the beginning and 181.3 MB in the end (delta: -18.4 MB). Peak memory consumption was 93.1 MB. Max. memory is 7.1 GB. [2019-08-08 10:00:56,637 INFO L168 Benchmark]: Symbolic Interpretation took 1335.12 ms. Allocated memory was 224.9 MB in the beginning and 271.6 MB in the end (delta: 46.7 MB). Free memory was 181.3 MB in the beginning and 112.1 MB in the end (delta: 69.3 MB). Peak memory consumption was 115.9 MB. Max. memory is 7.1 GB. [2019-08-08 10:00:56,647 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 565]: 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.. Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 132.1 MB. Free memory was 105.0 MB in the beginning and 104.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 719.85 ms. Allocated memory was 132.1 MB in the beginning and 202.9 MB in the end (delta: 70.8 MB). Free memory was 84.9 MB in the beginning and 167.6 MB in the end (delta: -82.7 MB). Peak memory consumption was 36.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.51 ms. Allocated memory is still 202.9 MB. Free memory was 167.6 MB in the beginning and 162.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3458.92 ms. Allocated memory was 202.9 MB in the beginning and 224.9 MB in the end (delta: 22.0 MB). Free memory was 162.9 MB in the beginning and 181.3 MB in the end (delta: -18.4 MB). Peak memory consumption was 93.1 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 1335.12 ms. Allocated memory was 224.9 MB in the beginning and 271.6 MB in the end (delta: 46.7 MB). Free memory was 181.3 MB in the beginning and 112.1 MB in the end (delta: 69.3 MB). Peak memory consumption was 115.9 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...