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/test_while_int.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f3d0b09 [2019-08-08 11:44:18,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-08 11:44:18,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-08 11:44:18,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-08 11:44:18,446 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-08 11:44:18,448 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-08 11:44:18,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-08 11:44:18,452 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-08 11:44:18,454 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-08 11:44:18,455 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-08 11:44:18,457 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-08 11:44:18,458 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-08 11:44:18,459 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-08 11:44:18,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-08 11:44:18,462 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-08 11:44:18,464 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-08 11:44:18,465 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-08 11:44:18,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-08 11:44:18,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-08 11:44:18,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-08 11:44:18,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-08 11:44:18,477 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-08 11:44:18,479 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-08 11:44:18,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-08 11:44:18,483 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-08 11:44:18,496 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-08 11:44:18,497 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-08 11:44:18,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-08 11:44:18,499 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 11:44:18,518 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-08 11:44:18,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-08 11:44:18,521 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-08 11:44:18,521 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-08 11:44:18,521 INFO L138 SettingsManager]: * Use SBE=true [2019-08-08 11:44:18,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-08 11:44:18,522 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-08 11:44:18,522 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-08 11:44:18,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-08 11:44:18,523 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-08 11:44:18,523 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-08 11:44:18,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-08 11:44:18,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-08 11:44:18,523 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-08 11:44:18,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-08 11:44:18,524 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-08 11:44:18,524 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-08 11:44:18,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-08 11:44:18,525 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-08 11:44:18,525 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-08 11:44:18,525 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-08 11:44:18,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-08 11:44:18,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-08 11:44:18,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-08 11:44:18,526 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-08 11:44:18,526 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-08 11:44:18,527 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-08 11:44:18,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-08 11:44:18,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-08 11:44:18,583 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-08 11:44:18,606 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-08 11:44:18,611 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-08 11:44:18,613 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-08 11:44:18,614 INFO L275 PluginConnector]: CDTParser initialized [2019-08-08 11:44:18,615 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test_while_int.i [2019-08-08 11:44:18,703 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f397b01c/7c6fe070b46f40d181b39a235f47c2e7/FLAG91db52453 [2019-08-08 11:44:19,276 INFO L306 CDTParser]: Found 1 translation units. [2019-08-08 11:44:19,278 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test_while_int.i [2019-08-08 11:44:19,287 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f397b01c/7c6fe070b46f40d181b39a235f47c2e7/FLAG91db52453 [2019-08-08 11:44:19,568 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f397b01c/7c6fe070b46f40d181b39a235f47c2e7 [2019-08-08 11:44:19,580 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-08 11:44:19,582 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-08 11:44:19,584 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-08 11:44:19,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-08 11:44:19,589 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-08 11:44:19,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 11:44:19" (1/1) ... [2019-08-08 11:44:19,594 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50cf513f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:44:19, skipping insertion in model container [2019-08-08 11:44:19,594 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 11:44:19" (1/1) ... [2019-08-08 11:44:19,604 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-08 11:44:19,626 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-08 11:44:19,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-08 11:44:19,905 INFO L188 MainTranslator]: Completed pre-run [2019-08-08 11:44:19,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-08 11:44:19,959 INFO L192 MainTranslator]: Completed translation [2019-08-08 11:44:19,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:44:19 WrapperNode [2019-08-08 11:44:19,960 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-08 11:44:19,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-08 11:44:19,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-08 11:44:19,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-08 11:44:19,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:44:19" (1/1) ... [2019-08-08 11:44:19,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:44:19" (1/1) ... [2019-08-08 11:44:19,991 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:44:19" (1/1) ... [2019-08-08 11:44:19,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:44:19" (1/1) ... [2019-08-08 11:44:20,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:44:19" (1/1) ... [2019-08-08 11:44:20,013 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:44:19" (1/1) ... [2019-08-08 11:44:20,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:44:19" (1/1) ... [2019-08-08 11:44:20,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-08 11:44:20,140 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-08 11:44:20,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-08 11:44:20,141 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-08 11:44:20,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:44:19" (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 11:44:20,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-08 11:44:20,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-08 11:44:20,214 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2019-08-08 11:44:20,214 INFO L138 BoogieDeclarations]: Found implementation of procedure check_error [2019-08-08 11:44:20,214 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-08 11:44:20,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-08 11:44:20,215 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2019-08-08 11:44:20,215 INFO L130 BoogieDeclarations]: Found specification of procedure check_error [2019-08-08 11:44:20,215 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-08 11:44:20,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-08 11:44:20,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-08 11:44:20,452 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-08 11:44:20,452 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-08 11:44:20,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 11:44:20 BoogieIcfgContainer [2019-08-08 11:44:20,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-08 11:44:20,455 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-08 11:44:20,457 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-08 11:44:20,458 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-08 11:44:20,459 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 11:44:20" (1/1) ... [2019-08-08 11:44:20,471 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-08 11:44:20,475 INFO L155 IcfgInterpreter]: Building call graph [2019-08-08 11:44:20,484 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-08 11:44:20,494 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-08 11:44:20,496 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-08 11:44:20,545 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 1 [2019-08-08 11:44:20,632 INFO L185 IcfgInterpreter]: Interpreting procedure check_error with input of size 20 [2019-08-08 11:44:20,636 INFO L185 IcfgInterpreter]: Interpreting procedure __blast_assert with input of size 19 [2019-08-08 11:44:20,637 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-08 11:44:20,638 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-08 11:44:20,641 INFO L179 IcfgInterpreter]: Location __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION has predicate 48#(exists ((v_main_~i~0_BEFORE_CALL_1 Int)) (and (< v_main_~i~0_BEFORE_CALL_1 6) (not (= 0 (ite (not (= 3 (+ v_main_~i~0_BEFORE_CALL_1 (- 1)))) 1 0))) (= 0 (ite (not (= v_main_~i~0_BEFORE_CALL_1 3)) 1 0)))) [2019-08-08 11:44:20,643 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-08 11:44:20,654 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-08 11:44:20,657 INFO L168 Benchmark]: Toolchain (without parser) took 1074.26 ms. Allocated memory was 132.1 MB in the beginning and 201.3 MB in the end (delta: 69.2 MB). Free memory was 89.1 MB in the beginning and 161.4 MB in the end (delta: -72.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-08 11:44:20,659 INFO L168 Benchmark]: CDTParser took 0.79 ms. Allocated memory is still 132.1 MB. Free memory was 107.4 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. [2019-08-08 11:44:20,660 INFO L168 Benchmark]: CACSL2BoogieTranslator took 377.23 ms. Allocated memory is still 132.1 MB. Free memory was 88.9 MB in the beginning and 79.9 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-08-08 11:44:20,662 INFO L168 Benchmark]: Boogie Preprocessor took 178.35 ms. Allocated memory was 132.1 MB in the beginning and 201.3 MB in the end (delta: 69.2 MB). Free memory was 79.9 MB in the beginning and 180.9 MB in the end (delta: -101.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 7.1 GB. [2019-08-08 11:44:20,664 INFO L168 Benchmark]: RCFGBuilder took 314.44 ms. Allocated memory is still 201.3 MB. Free memory was 180.9 MB in the beginning and 167.7 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2019-08-08 11:44:20,665 INFO L168 Benchmark]: Symbolic Interpretation took 198.92 ms. Allocated memory is still 201.3 MB. Free memory was 167.7 MB in the beginning and 161.4 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 7.1 GB. [2019-08-08 11:44:20,672 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 6]: 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 0.79 ms. Allocated memory is still 132.1 MB. Free memory was 107.4 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 377.23 ms. Allocated memory is still 132.1 MB. Free memory was 88.9 MB in the beginning and 79.9 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 178.35 ms. Allocated memory was 132.1 MB in the beginning and 201.3 MB in the end (delta: 69.2 MB). Free memory was 79.9 MB in the beginning and 180.9 MB in the end (delta: -101.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 314.44 ms. Allocated memory is still 201.3 MB. Free memory was 180.9 MB in the beginning and 167.7 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 198.92 ms. Allocated memory is still 201.3 MB. Free memory was 167.7 MB in the beginning and 161.4 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...