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/loops/invert_string-3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-2989841 [2019-08-10 02:21:19,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-10 02:21:19,567 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-10 02:21:19,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-10 02:21:19,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-10 02:21:19,580 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-10 02:21:19,582 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-10 02:21:19,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-10 02:21:19,585 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-10 02:21:19,586 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-10 02:21:19,587 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-10 02:21:19,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-10 02:21:19,589 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-10 02:21:19,590 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-10 02:21:19,591 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-10 02:21:19,592 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-10 02:21:19,593 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-10 02:21:19,594 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-10 02:21:19,596 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-10 02:21:19,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-10 02:21:19,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-10 02:21:19,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-10 02:21:19,602 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-10 02:21:19,602 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-10 02:21:19,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-10 02:21:19,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-10 02:21:19,611 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-10 02:21:19,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-10 02:21:19,612 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-10 02:21:19,613 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-10 02:21:19,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-10 02:21:19,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-10 02:21:19,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-10 02:21:19,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-10 02:21:19,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-10 02:21:19,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-10 02:21:19,617 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 02:21:19,631 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-10 02:21:19,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-10 02:21:19,632 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-10 02:21:19,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-10 02:21:19,633 INFO L138 SettingsManager]: * Use SBE=true [2019-08-10 02:21:19,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-10 02:21:19,633 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-10 02:21:19,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-10 02:21:19,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-10 02:21:19,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-10 02:21:19,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-10 02:21:19,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-10 02:21:19,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-10 02:21:19,635 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-10 02:21:19,635 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-10 02:21:19,635 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-10 02:21:19,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-10 02:21:19,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-10 02:21:19,636 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-10 02:21:19,636 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-10 02:21:19,636 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-10 02:21:19,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-10 02:21:19,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-10 02:21:19,637 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-10 02:21:19,637 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-10 02:21:19,637 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-10 02:21:19,637 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-10 02:21:19,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-10 02:21:19,638 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-10 02:21:19,666 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-10 02:21:19,679 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-10 02:21:19,683 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-10 02:21:19,684 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-10 02:21:19,684 INFO L275 PluginConnector]: CDTParser initialized [2019-08-10 02:21:19,685 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/invert_string-3.c [2019-08-10 02:21:19,742 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9906cc284/5241e7bc0ed44054a7bc0fc266616679/FLAG43a42b905 [2019-08-10 02:21:20,199 INFO L306 CDTParser]: Found 1 translation units. [2019-08-10 02:21:20,202 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/invert_string-3.c [2019-08-10 02:21:20,208 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9906cc284/5241e7bc0ed44054a7bc0fc266616679/FLAG43a42b905 [2019-08-10 02:21:20,581 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9906cc284/5241e7bc0ed44054a7bc0fc266616679 [2019-08-10 02:21:20,590 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-10 02:21:20,591 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-10 02:21:20,592 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-10 02:21:20,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-10 02:21:20,596 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-10 02:21:20,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.08 02:21:20" (1/1) ... [2019-08-10 02:21:20,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@539391d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:21:20, skipping insertion in model container [2019-08-10 02:21:20,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.08 02:21:20" (1/1) ... [2019-08-10 02:21:20,613 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-10 02:21:20,633 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-10 02:21:20,837 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-10 02:21:20,841 INFO L188 MainTranslator]: Completed pre-run [2019-08-10 02:21:20,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-10 02:21:20,885 INFO L192 MainTranslator]: Completed translation [2019-08-10 02:21:20,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:21:20 WrapperNode [2019-08-10 02:21:20,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-10 02:21:20,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-10 02:21:20,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-10 02:21:20,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-10 02:21:20,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:21:20" (1/1) ... [2019-08-10 02:21:21,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:21:20" (1/1) ... [2019-08-10 02:21:21,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:21:20" (1/1) ... [2019-08-10 02:21:21,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:21:20" (1/1) ... [2019-08-10 02:21:21,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:21:20" (1/1) ... [2019-08-10 02:21:21,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:21:20" (1/1) ... [2019-08-10 02:21:21,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:21:20" (1/1) ... [2019-08-10 02:21:21,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-10 02:21:21,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-10 02:21:21,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-10 02:21:21,039 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-10 02:21:21,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:21:20" (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 02:21:21,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-10 02:21:21,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-10 02:21:21,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-08-10 02:21:21,091 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-10 02:21:21,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-10 02:21:21,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-08-10 02:21:21,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-08-10 02:21:21,091 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-10 02:21:21,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-08-10 02:21:21,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-08-10 02:21:21,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-08-10 02:21:21,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-08-10 02:21:21,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-10 02:21:21,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-10 02:21:21,404 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-10 02:21:21,404 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-08-10 02:21:21,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.08 02:21:21 BoogieIcfgContainer [2019-08-10 02:21:21,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-10 02:21:21,406 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-10 02:21:21,407 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-10 02:21:21,407 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-10 02:21:21,408 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.08 02:21:21" (1/1) ... [2019-08-10 02:21:22,055 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 34 [2019-08-10 02:21:22,116 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-08-10 02:21:22,202 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-08-10 02:21:22,353 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2019-08-10 02:21:22,555 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2019-08-10 02:21:22,645 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-10 02:21:22,654 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-10 02:21:22,656 INFO L168 Benchmark]: Toolchain (without parser) took 2064.62 ms. Allocated memory was 139.5 MB in the beginning and 223.9 MB in the end (delta: 84.4 MB). Free memory was 87.0 MB in the beginning and 193.5 MB in the end (delta: -106.5 MB). Peak memory consumption was 74.5 MB. Max. memory is 7.1 GB. [2019-08-10 02:21:22,657 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 105.7 MB in the beginning and 105.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-10 02:21:22,658 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.35 ms. Allocated memory is still 139.5 MB. Free memory was 86.8 MB in the beginning and 76.6 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2019-08-10 02:21:22,659 INFO L168 Benchmark]: Boogie Preprocessor took 151.42 ms. Allocated memory was 139.5 MB in the beginning and 200.3 MB in the end (delta: 60.8 MB). Free memory was 76.6 MB in the beginning and 176.9 MB in the end (delta: -100.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2019-08-10 02:21:22,660 INFO L168 Benchmark]: RCFGBuilder took 366.62 ms. Allocated memory is still 200.3 MB. Free memory was 176.9 MB in the beginning and 162.1 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. [2019-08-10 02:21:22,661 INFO L168 Benchmark]: Symbolic Interpretation took 1248.43 ms. Allocated memory was 200.3 MB in the beginning and 223.9 MB in the end (delta: 23.6 MB). Free memory was 162.1 MB in the beginning and 193.5 MB in the end (delta: -31.4 MB). Peak memory consumption was 88.9 MB. Max. memory is 7.1 GB. [2019-08-10 02:21:22,666 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 5]: 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 106#(and (or (= |__VERIFIER_assert_#in~cond| 1) (= |__VERIFIER_assert_#in~cond| 0)) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 105.7 MB in the beginning and 105.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 294.35 ms. Allocated memory is still 139.5 MB. Free memory was 86.8 MB in the beginning and 76.6 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 151.42 ms. Allocated memory was 139.5 MB in the beginning and 200.3 MB in the end (delta: 60.8 MB). Free memory was 76.6 MB in the beginning and 176.9 MB in the end (delta: -100.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 366.62 ms. Allocated memory is still 200.3 MB. Free memory was 176.9 MB in the beginning and 162.1 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 1248.43 ms. Allocated memory was 200.3 MB in the beginning and 223.9 MB in the end (delta: 23.6 MB). Free memory was 162.1 MB in the beginning and 193.5 MB in the end (delta: -31.4 MB). Peak memory consumption was 88.9 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...