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/test23-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-55cd5f5 [2019-08-14 20:14:49,484 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-14 20:14:49,486 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-14 20:14:49,505 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-14 20:14:49,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-14 20:14:49,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-14 20:14:49,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-14 20:14:49,513 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-14 20:14:49,514 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-14 20:14:49,515 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-14 20:14:49,516 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-14 20:14:49,517 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-14 20:14:49,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-14 20:14:49,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-14 20:14:49,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-14 20:14:49,521 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-14 20:14:49,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-14 20:14:49,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-14 20:14:49,524 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-14 20:14:49,526 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-14 20:14:49,528 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-14 20:14:49,529 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-14 20:14:49,530 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-14 20:14:49,531 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-14 20:14:49,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-14 20:14:49,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-14 20:14:49,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-14 20:14:49,539 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-14 20:14:49,539 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-14 20:14:49,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-14 20:14:49,541 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-14 20:14:49,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-14 20:14:49,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-14 20:14:49,542 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-14 20:14:49,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-14 20:14:49,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-14 20:14:49,544 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 20:14:49,572 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-14 20:14:49,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-14 20:14:49,574 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-14 20:14:49,574 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-14 20:14:49,575 INFO L138 SettingsManager]: * Use SBE=true [2019-08-14 20:14:49,575 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-14 20:14:49,575 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-14 20:14:49,575 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-14 20:14:49,576 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-14 20:14:49,576 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-14 20:14:49,577 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-14 20:14:49,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-14 20:14:49,577 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-14 20:14:49,577 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-14 20:14:49,578 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-14 20:14:49,578 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-14 20:14:49,578 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-14 20:14:49,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-14 20:14:49,579 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-14 20:14:49,579 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-14 20:14:49,579 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-14 20:14:49,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-14 20:14:49,580 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-14 20:14:49,580 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-14 20:14:49,580 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-14 20:14:49,580 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-14 20:14:49,580 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-14 20:14:49,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-14 20:14:49,581 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-14 20:14:49,624 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-14 20:14:49,638 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-14 20:14:49,642 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-14 20:14:49,643 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-14 20:14:49,644 INFO L275 PluginConnector]: CDTParser initialized [2019-08-14 20:14:49,644 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test23-2.c [2019-08-14 20:14:49,717 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/935f30c3a/2bd910ea18d643b0becbdb05bab34580/FLAGf6c332dd3 [2019-08-14 20:14:50,156 INFO L306 CDTParser]: Found 1 translation units. [2019-08-14 20:14:50,159 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test23-2.c [2019-08-14 20:14:50,169 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/935f30c3a/2bd910ea18d643b0becbdb05bab34580/FLAGf6c332dd3 [2019-08-14 20:14:50,521 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/935f30c3a/2bd910ea18d643b0becbdb05bab34580 [2019-08-14 20:14:50,536 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-14 20:14:50,538 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-14 20:14:50,539 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-14 20:14:50,539 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-14 20:14:50,542 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-14 20:14:50,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 08:14:50" (1/1) ... [2019-08-14 20:14:50,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46669f3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:14:50, skipping insertion in model container [2019-08-14 20:14:50,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 08:14:50" (1/1) ... [2019-08-14 20:14:50,554 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-14 20:14:50,572 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-14 20:14:50,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-14 20:14:50,786 INFO L188 MainTranslator]: Completed pre-run [2019-08-14 20:14:50,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-14 20:14:50,916 INFO L192 MainTranslator]: Completed translation [2019-08-14 20:14:50,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:14:50 WrapperNode [2019-08-14 20:14:50,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-14 20:14:50,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-14 20:14:50,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-14 20:14:50,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-14 20:14:50,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:14:50" (1/1) ... [2019-08-14 20:14:50,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:14:50" (1/1) ... [2019-08-14 20:14:50,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:14:50" (1/1) ... [2019-08-14 20:14:50,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:14:50" (1/1) ... [2019-08-14 20:14:50,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:14:50" (1/1) ... [2019-08-14 20:14:50,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:14:50" (1/1) ... [2019-08-14 20:14:50,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:14:50" (1/1) ... [2019-08-14 20:14:50,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-14 20:14:50,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-14 20:14:50,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-14 20:14:50,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-14 20:14:50,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:14:50" (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 20:14:51,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-14 20:14:51,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-14 20:14:51,007 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-08-14 20:14:51,007 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2019-08-14 20:14:51,008 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2019-08-14 20:14:51,008 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-14 20:14:51,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-14 20:14:51,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-14 20:14:51,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-08-14 20:14:51,008 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-08-14 20:14:51,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-08-14 20:14:51,009 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2019-08-14 20:14:51,009 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-08-14 20:14:51,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-08-14 20:14:51,009 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-14 20:14:51,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-14 20:14:51,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-08-14 20:14:51,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-14 20:14:51,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-08-14 20:14:51,290 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-14 20:14:51,291 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-14 20:14:51,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 08:14:51 BoogieIcfgContainer [2019-08-14 20:14:51,292 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-14 20:14:51,293 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-14 20:14:51,293 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-14 20:14:51,293 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-14 20:14:51,294 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 08:14:51" (1/1) ... [2019-08-14 20:14:51,708 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2019-08-14 20:14:51,993 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 39 [2019-08-14 20:14:52,159 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2019-08-14 20:14:52,470 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2019-08-14 20:14:52,588 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-14 20:14:52,590 INFO L168 Benchmark]: Toolchain (without parser) took 2052.54 ms. Allocated memory was 135.3 MB in the beginning and 222.3 MB in the end (delta: 87.0 MB). Free memory was 86.4 MB in the beginning and 176.5 MB in the end (delta: -90.2 MB). Peak memory consumption was 79.3 MB. Max. memory is 7.1 GB. [2019-08-14 20:14:52,591 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 135.3 MB. Free memory is still 104.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-14 20:14:52,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 378.91 ms. Allocated memory was 135.3 MB in the beginning and 199.8 MB in the end (delta: 64.5 MB). Free memory was 86.4 MB in the beginning and 177.9 MB in the end (delta: -91.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2019-08-14 20:14:52,595 INFO L168 Benchmark]: Boogie Preprocessor took 37.19 ms. Allocated memory is still 199.8 MB. Free memory was 177.9 MB in the beginning and 175.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-08-14 20:14:52,596 INFO L168 Benchmark]: RCFGBuilder took 336.99 ms. Allocated memory is still 199.8 MB. Free memory was 175.7 MB in the beginning and 158.5 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. [2019-08-14 20:14:52,598 INFO L168 Benchmark]: Symbolic Interpretation took 1295.66 ms. Allocated memory was 199.8 MB in the beginning and 222.3 MB in the end (delta: 22.5 MB). Free memory was 158.5 MB in the beginning and 176.5 MB in the end (delta: -18.1 MB). Peak memory consumption was 86.9 MB. Max. memory is 7.1 GB. [2019-08-14 20:14:52,605 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 50]: 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 73#(not (= main_~i~0 (select (select |#memory_int| main_~pd2~0.base) (+ (* 4 main_~i~0) main_~pd2~0.offset 8)))). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 135.3 MB. Free memory is still 104.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 378.91 ms. Allocated memory was 135.3 MB in the beginning and 199.8 MB in the end (delta: 64.5 MB). Free memory was 86.4 MB in the beginning and 177.9 MB in the end (delta: -91.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 37.19 ms. Allocated memory is still 199.8 MB. Free memory was 177.9 MB in the beginning and 175.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 336.99 ms. Allocated memory is still 199.8 MB. Free memory was 175.7 MB in the beginning and 158.5 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 1295.66 ms. Allocated memory was 199.8 MB in the beginning and 222.3 MB in the end (delta: 22.5 MB). Free memory was 158.5 MB in the beginning and 176.5 MB in the end (delta: -18.1 MB). Peak memory consumption was 86.9 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...