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 --sifa.abstract.domain ExplicitValueDomain --rcfgbuilder.size.of.a.code.block SingleStatement --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_DDA -i ../../../trunk/examples/svcomp/loops/invert_string-3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 19:22:05,455 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 19:22:05,458 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 19:22:05,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 19:22:05,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 19:22:05,471 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 19:22:05,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 19:22:05,474 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 19:22:05,476 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 19:22:05,477 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 19:22:05,478 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 19:22:05,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 19:22:05,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 19:22:05,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 19:22:05,483 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 19:22:05,486 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 19:22:05,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 19:22:05,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 19:22:05,494 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 19:22:05,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 19:22:05,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 19:22:05,506 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 19:22:05,507 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 19:22:05,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 19:22:05,514 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 19:22:05,514 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 19:22:05,514 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 19:22:05,517 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 19:22:05,518 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 19:22:05,521 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 19:22:05,521 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 19:22:05,522 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 19:22:05,523 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 19:22:05,524 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 19:22:05,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 19:22:05,526 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 19:22:05,527 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 19:22:05,527 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 19:22:05,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 19:22:05,528 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 19:22:05,529 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 19:22:05,531 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 [2019-09-20 19:22:05,553 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 19:22:05,553 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 19:22:05,556 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 19:22:05,556 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 19:22:05,556 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 19:22:05,556 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 19:22:05,557 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 19:22:05,557 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 19:22:05,557 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 19:22:05,557 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 19:22:05,558 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 19:22:05,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 19:22:05,559 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 19:22:05,559 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 19:22:05,559 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 19:22:05,560 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 19:22:05,560 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 19:22:05,560 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 19:22:05,560 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 19:22:05,560 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 19:22:05,561 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 19:22:05,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 19:22:05,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 19:22:05,561 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 19:22:05,562 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 19:22:05,562 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 19:22:05,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 19:22:05,562 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 19:22:05,562 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> ExplicitValueDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Intern Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_DDA [2019-09-20 19:22:05,630 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 19:22:05,642 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 19:22:05,646 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 19:22:05,647 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 19:22:05,648 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 19:22:05,648 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/invert_string-3.c [2019-09-20 19:22:05,711 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b8b939fa/a9c90bdec19b4450a8f58a29539a1159/FLAG2f1aaf55f [2019-09-20 19:22:06,161 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 19:22:06,162 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/invert_string-3.c [2019-09-20 19:22:06,168 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b8b939fa/a9c90bdec19b4450a8f58a29539a1159/FLAG2f1aaf55f [2019-09-20 19:22:06,549 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b8b939fa/a9c90bdec19b4450a8f58a29539a1159 [2019-09-20 19:22:06,563 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 19:22:06,565 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 19:22:06,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 19:22:06,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 19:22:06,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 19:22:06,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 07:22:06" (1/1) ... [2019-09-20 19:22:06,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f77762e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:22:06, skipping insertion in model container [2019-09-20 19:22:06,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 07:22:06" (1/1) ... [2019-09-20 19:22:06,583 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 19:22:06,601 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 19:22:06,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 19:22:06,820 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 19:22:06,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 19:22:06,950 INFO L192 MainTranslator]: Completed translation [2019-09-20 19:22:06,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:22:06 WrapperNode [2019-09-20 19:22:06,951 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 19:22:06,952 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 19:22:06,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 19:22:06,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 19:22:06,966 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:22:06" (1/1) ... [2019-09-20 19:22:06,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:22:06" (1/1) ... [2019-09-20 19:22:06,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:22:06" (1/1) ... [2019-09-20 19:22:06,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:22:06" (1/1) ... [2019-09-20 19:22:06,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:22:06" (1/1) ... [2019-09-20 19:22:06,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:22:06" (1/1) ... [2019-09-20 19:22:06,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:22:06" (1/1) ... [2019-09-20 19:22:06,992 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 19:22:06,993 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 19:22:06,993 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 19:22:06,993 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 19:22:06,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:22:06" (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 [2019-09-20 19:22:07,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 19:22:07,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 19:22:07,054 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 19:22:07,054 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 19:22:07,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 19:22:07,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 19:22:07,056 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-20 19:22:07,056 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 19:22:07,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 19:22:07,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 19:22:07,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 19:22:07,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 19:22:07,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 19:22:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 19:22:07,378 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 19:22:07,379 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-09-20 19:22:07,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 07:22:07 BoogieIcfgContainer [2019-09-20 19:22:07,380 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 19:22:07,381 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 19:22:07,381 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 19:22:07,381 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 19:22:07,382 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 07:22:07" (1/1) ... [2019-09-20 19:22:07,383 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=ExplicitValueDomain ♦ Abstract when formula's dag size exceeds (negative numbers disable this limit)=-1 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ Abstract when formula has more disjuncts than (negative numbers disable this limit)=8 ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_DDA ♦ Intern Fluid=SizeLimitFluid [2019-09-20 19:22:07,403 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 19:22:07,403 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 19:22:07,410 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 19:22:07,418 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 19:22:07,420 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 19:22:07,583 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 17 for LOIs [2019-09-20 19:22:07,910 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 83 [2019-09-20 19:22:08,313 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 109 [2019-09-20 19:22:08,416 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2019-09-20 19:22:08,735 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 143 [2019-09-20 19:22:09,234 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 159 [2019-09-20 19:22:09,337 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2019-09-20 19:22:09,950 WARN L191 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 201 [2019-09-20 19:22:10,071 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2019-09-20 19:22:10,506 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-09-20 19:22:11,130 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-09-20 19:22:11,330 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 53 [2019-09-20 19:22:11,597 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2019-09-20 19:22:12,256 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2019-09-20 19:22:12,594 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2019-09-20 19:22:14,723 WARN L191 SmtUtils]: Spent 2.13 s on a formula simplification that was a NOOP. DAG size: 67 [2019-09-20 19:22:17,183 WARN L191 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2019-09-20 19:22:17,356 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2019-09-20 19:22:17,769 WARN L191 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-20 19:22:17,854 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-09-20 19:22:18,397 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2019-09-20 19:22:18,708 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 51 [2019-09-20 19:22:18,840 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2019-09-20 19:22:19,018 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2019-09-20 19:22:19,103 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 29 for LOIs [2019-09-20 19:22:19,129 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-20 19:22:19,130 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-20 19:22:19,132 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 318#(and (= 0 __VERIFIER_assert_~cond) (exists ((|v_main_~#str1~0.base_BEFORE_CALL_6| Int) (v_main_~i~0_BEFORE_CALL_6 Int) (|v_main_~#str2~0.offset_BEFORE_CALL_6| Int) (v_main_~j~0_BEFORE_CALL_6 Int) (|v_main_~#str1~0.offset_BEFORE_CALL_6| Int) (v_main_~max~0_BEFORE_CALL_6 Int) (|v_main_~#str2~0.base_BEFORE_CALL_6| Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (not (= (select (select |#memory_int| |v_main_~#str2~0.base_BEFORE_CALL_6|) (+ |v_main_~#str2~0.offset_BEFORE_CALL_6| v_main_~j~0_BEFORE_CALL_6)) (select (select |#memory_int| |v_main_~#str1~0.base_BEFORE_CALL_6|) (+ v_main_~i~0_BEFORE_CALL_6 |v_main_~#str1~0.offset_BEFORE_CALL_6|)))) (< (mod v_main_~i~0_BEFORE_CALL_6 4294967296) (mod v_main_~max~0_BEFORE_CALL_6 4294967296))) (and (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| |v_main_~#str2~0.base_BEFORE_CALL_6|) (+ |v_main_~#str2~0.offset_BEFORE_CALL_6| v_main_~j~0_BEFORE_CALL_6)) (select (select |#memory_int| |v_main_~#str1~0.base_BEFORE_CALL_6|) (+ v_main_~i~0_BEFORE_CALL_6 |v_main_~#str1~0.offset_BEFORE_CALL_6|))) (< (mod v_main_~i~0_BEFORE_CALL_6 4294967296) (mod v_main_~max~0_BEFORE_CALL_6 4294967296))))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-09-20 19:22:19,156 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-20 19:22:19,156 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-20 19:22:19,158 INFO L168 Benchmark]: Toolchain (without parser) took 12592.83 ms. Allocated memory was 132.6 MB in the beginning and 305.7 MB in the end (delta: 173.0 MB). Free memory was 87.1 MB in the beginning and 86.8 MB in the end (delta: 234.6 kB). Peak memory consumption was 173.2 MB. Max. memory is 7.1 GB. [2019-09-20 19:22:19,159 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 132.6 MB. Free memory was 105.7 MB in the beginning and 105.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-09-20 19:22:19,159 INFO L168 Benchmark]: CACSL2BoogieTranslator took 385.13 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 86.9 MB in the beginning and 176.6 MB in the end (delta: -89.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2019-09-20 19:22:19,160 INFO L168 Benchmark]: Boogie Preprocessor took 40.67 ms. Allocated memory is still 199.8 MB. Free memory was 176.6 MB in the beginning and 174.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-09-20 19:22:19,161 INFO L168 Benchmark]: RCFGBuilder took 387.73 ms. Allocated memory is still 199.8 MB. Free memory was 174.4 MB in the beginning and 156.4 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 7.1 GB. [2019-09-20 19:22:19,162 INFO L168 Benchmark]: Sifa took 11775.44 ms. Allocated memory was 199.8 MB in the beginning and 305.7 MB in the end (delta: 105.9 MB). Free memory was 156.4 MB in the beginning and 86.8 MB in the end (delta: 69.6 MB). Peak memory consumption was 175.5 MB. Max. memory is 7.1 GB. [2019-09-20 19:22:19,168 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 132.6 MB. Free memory was 105.7 MB in the beginning and 105.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 385.13 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 86.9 MB in the beginning and 176.6 MB in the end (delta: -89.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 40.67 ms. Allocated memory is still 199.8 MB. Free memory was 176.6 MB in the beginning and 174.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 387.73 ms. Allocated memory is still 199.8 MB. Free memory was 174.4 MB in the beginning and 156.4 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 7.1 GB. * Sifa took 11775.44 ms. Allocated memory was 199.8 MB in the beginning and 305.7 MB in the end (delta: 105.9 MB). Free memory was 156.4 MB in the beginning and 86.8 MB in the end (delta: 69.6 MB). Peak memory consumption was 175.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 11730, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 225, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 213, TOOLS_POST_TIME[ms]: 2144, TOOLS_POST_CALL_APPLICATIONS: 8, TOOLS_POST_CALL_TIME[ms]: 96, TOOLS_POST_RETURN_APPLICATIONS: 6, TOOLS_POST_RETURN_TIME[ms]: 8, TOOLS_QUANTIFIERELIM_APPLICATIONS: 227, TOOLS_QUANTIFIERELIM_TIME[ms]: 2170, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 511, FLUID_QUERY_TIME[ms]: 9, FLUID_QUERIES: 241, FLUID_YES_ANSWERS: 2, DOMAIN_JOIN_APPLICATIONS: 27, DOMAIN_JOIN_TIME[ms]: 3758, DOMAIN_ALPHA_APPLICATIONS: 2, DOMAIN_ALPHA_TIME[ms]: 14, DOMAIN_WIDEN_APPLICATIONS: 12, DOMAIN_WIDEN_TIME[ms]: 5147, DOMAIN_ISSUBSETEQ_APPLICATIONS: 16, DOMAIN_ISSUBSETEQ_TIME[ms]: 405, DOMAIN_ISBOTTOM_APPLICATIONS: 8, DOMAIN_ISBOTTOM_TIME[ms]: 42, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 11182, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 11181, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 16, CALL_SUMMARIZER_APPLICATIONS: 6, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME[ms]: 125, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 125, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 4, PATH_EXPR_TIME[ms]: 6, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 35, DAG_COMPRESSION_PROCESSED_NODES: 268, DAG_COMPRESSION_RETAINED_NODES: 170 - UnprovableResult [Line: 5]: 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 318#(and (= 0 __VERIFIER_assert_~cond) (exists ((|v_main_~#str1~0.base_BEFORE_CALL_6| Int) (v_main_~i~0_BEFORE_CALL_6 Int) (|v_main_~#str2~0.offset_BEFORE_CALL_6| Int) (v_main_~j~0_BEFORE_CALL_6 Int) (|v_main_~#str1~0.offset_BEFORE_CALL_6| Int) (v_main_~max~0_BEFORE_CALL_6 Int) (|v_main_~#str2~0.base_BEFORE_CALL_6| Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (not (= (select (select |#memory_int| |v_main_~#str2~0.base_BEFORE_CALL_6|) (+ |v_main_~#str2~0.offset_BEFORE_CALL_6| v_main_~j~0_BEFORE_CALL_6)) (select (select |#memory_int| |v_main_~#str1~0.base_BEFORE_CALL_6|) (+ v_main_~i~0_BEFORE_CALL_6 |v_main_~#str1~0.offset_BEFORE_CALL_6|)))) (< (mod v_main_~i~0_BEFORE_CALL_6 4294967296) (mod v_main_~max~0_BEFORE_CALL_6 4294967296))) (and (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| |v_main_~#str2~0.base_BEFORE_CALL_6|) (+ |v_main_~#str2~0.offset_BEFORE_CALL_6| v_main_~j~0_BEFORE_CALL_6)) (select (select |#memory_int| |v_main_~#str1~0.base_BEFORE_CALL_6|) (+ v_main_~i~0_BEFORE_CALL_6 |v_main_~#str1~0.offset_BEFORE_CALL_6|))) (< (mod v_main_~i~0_BEFORE_CALL_6 4294967296) (mod v_main_~max~0_BEFORE_CALL_6 4294967296))))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...