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 LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid NeverFluid --sifa.intern.fluid NeverFluid --sifa.simplification.technique SIMPLIFY_DDA -i ../../../trunk/examples/svcomp/nla-digbench/cohendiv.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-19 21:53:03,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-19 21:53:03,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-19 21:53:03,470 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-19 21:53:03,471 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-19 21:53:03,472 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-19 21:53:03,473 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-19 21:53:03,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-19 21:53:03,476 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-19 21:53:03,477 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-19 21:53:03,478 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-19 21:53:03,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-19 21:53:03,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-19 21:53:03,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-19 21:53:03,481 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-19 21:53:03,482 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-19 21:53:03,483 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-19 21:53:03,484 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-19 21:53:03,488 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-19 21:53:03,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-19 21:53:03,492 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-19 21:53:03,494 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-19 21:53:03,496 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-19 21:53:03,499 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-19 21:53:03,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-19 21:53:03,502 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-19 21:53:03,502 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-19 21:53:03,505 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-19 21:53:03,505 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-19 21:53:03,506 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-19 21:53:03,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-19 21:53:03,509 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-19 21:53:03,509 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-19 21:53:03,511 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-19 21:53:03,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-19 21:53:03,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-19 21:53:03,515 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-19 21:53:03,515 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-19 21:53:03,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-19 21:53:03,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-19 21:53:03,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-19 21:53:03,519 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 [2019-09-19 21:53:03,539 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-19 21:53:03,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-19 21:53:03,541 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-19 21:53:03,542 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-19 21:53:03,542 INFO L138 SettingsManager]: * Use SBE=true [2019-09-19 21:53:03,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-19 21:53:03,542 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-19 21:53:03,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-19 21:53:03,543 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-19 21:53:03,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-19 21:53:03,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-19 21:53:03,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-19 21:53:03,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-19 21:53:03,545 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-19 21:53:03,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-19 21:53:03,545 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-19 21:53:03,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-19 21:53:03,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-19 21:53:03,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-19 21:53:03,546 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-19 21:53:03,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-19 21:53:03,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-19 21:53:03,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-19 21:53:03,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-19 21:53:03,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-19 21:53:03,548 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-19 21:53:03,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-19 21:53:03,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-19 21:53:03,548 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 -> LoopFreeBlock 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 -> NeverFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Intern Fluid -> NeverFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_DDA [2019-09-19 21:53:03,597 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-19 21:53:03,610 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-19 21:53:03,614 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-19 21:53:03,615 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-19 21:53:03,616 INFO L275 PluginConnector]: CDTParser initialized [2019-09-19 21:53:03,616 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/cohendiv.c [2019-09-19 21:53:03,686 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/077cd66bf/4c5040b1aa8b4e71ab2dbcd2fabca887/FLAG5aef28747 [2019-09-19 21:53:04,138 INFO L306 CDTParser]: Found 1 translation units. [2019-09-19 21:53:04,139 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/cohendiv.c [2019-09-19 21:53:04,145 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/077cd66bf/4c5040b1aa8b4e71ab2dbcd2fabca887/FLAG5aef28747 [2019-09-19 21:53:04,572 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/077cd66bf/4c5040b1aa8b4e71ab2dbcd2fabca887 [2019-09-19 21:53:04,583 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-19 21:53:04,584 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-19 21:53:04,585 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-19 21:53:04,585 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-19 21:53:04,588 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-19 21:53:04,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 09:53:04" (1/1) ... [2019-09-19 21:53:04,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@186a9449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:53:04, skipping insertion in model container [2019-09-19 21:53:04,592 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 09:53:04" (1/1) ... [2019-09-19 21:53:04,600 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-19 21:53:04,617 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-19 21:53:04,811 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-19 21:53:04,814 INFO L188 MainTranslator]: Completed pre-run [2019-09-19 21:53:04,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-19 21:53:04,844 INFO L192 MainTranslator]: Completed translation [2019-09-19 21:53:04,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:53:04 WrapperNode [2019-09-19 21:53:04,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-19 21:53:04,845 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-19 21:53:04,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-19 21:53:04,845 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-19 21:53:04,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:53:04" (1/1) ... [2019-09-19 21:53:04,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:53:04" (1/1) ... [2019-09-19 21:53:04,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:53:04" (1/1) ... [2019-09-19 21:53:04,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:53:04" (1/1) ... [2019-09-19 21:53:04,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:53:04" (1/1) ... [2019-09-19 21:53:04,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:53:04" (1/1) ... [2019-09-19 21:53:04,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:53:04" (1/1) ... [2019-09-19 21:53:04,961 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-19 21:53:04,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-19 21:53:04,961 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-19 21:53:04,961 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-19 21:53:04,962 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:53:04" (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 [2019-09-19 21:53:05,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-19 21:53:05,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-19 21:53:05,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-19 21:53:05,016 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-19 21:53:05,016 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-19 21:53:05,016 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-19 21:53:05,016 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-19 21:53:05,017 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-19 21:53:05,017 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-19 21:53:05,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-19 21:53:05,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-19 21:53:05,229 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-19 21:53:05,230 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-09-19 21:53:05,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 09:53:05 BoogieIcfgContainer [2019-09-19 21:53:05,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-19 21:53:05,232 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-19 21:53:05,232 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-19 21:53:05,233 INFO L275 PluginConnector]: Sifa initialized [2019-09-19 21:53:05,234 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 09:53:05" (1/1) ... [2019-09-19 21:53:05,243 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=ExplicitValueDomain ♦ Abstract when formula's dag size exceeds (negative numbers disable this limit)=-1 ♦ Fluid=NeverFluid ♦ 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=NeverFluid [2019-09-19 21:53:05,289 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-19 21:53:05,289 INFO L169 IcfgInterpreter]: Building call graph [2019-09-19 21:53:05,296 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-19 21:53:05,306 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-19 21:53:05,308 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-19 21:53:05,353 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-09-19 21:53:05,819 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 25 [2019-09-19 21:53:06,131 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 32 [2019-09-19 21:53:06,340 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2019-09-19 21:53:07,585 WARN L191 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2019-09-19 21:53:08,102 WARN L191 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-19 21:53:12,204 WARN L191 SmtUtils]: Spent 4.06 s on a formula simplification. DAG size of input: 28 DAG size of output: 25 [2019-09-19 21:53:14,223 WARN L191 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 25 [2019-09-19 21:53:17,478 WARN L191 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2019-09-19 21:53:21,613 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2019-09-19 21:53:21,832 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2019-09-19 21:53:30,859 WARN L191 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-19 21:53:33,008 WARN L191 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 123 DAG size of output: 117 [2019-09-19 21:53:34,165 WARN L191 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 117 [2019-09-19 21:53:46,596 WARN L191 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2019-09-19 21:53:55,662 WARN L191 SmtUtils]: Spent 523.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-09-19 21:53:56,612 WARN L191 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 96 [2019-09-19 21:53:56,730 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2019-09-19 21:54:03,843 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-19 21:54:05,980 WARN L191 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 117 [2019-09-19 21:54:06,114 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-19 21:54:19,422 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2019-09-19 21:54:22,492 WARN L191 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 146 DAG size of output: 138 [2019-09-19 21:54:35,058 WARN L191 SmtUtils]: Spent 2.75 s on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2019-09-19 21:54:36,520 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification that was a NOOP. DAG size: 42 [2019-09-19 21:54:38,675 WARN L191 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2019-09-19 21:54:38,830 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2019-09-19 21:54:39,064 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2019-09-19 21:54:39,077 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-19 21:54:39,077 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-19 21:54:39,080 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 370#(and (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-09-19 21:54:39,091 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-19 21:54:39,091 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-19 21:54:39,093 INFO L168 Benchmark]: Toolchain (without parser) took 94508.66 ms. Allocated memory was 141.6 MB in the beginning and 292.6 MB in the end (delta: 151.0 MB). Free memory was 87.9 MB in the beginning and 231.1 MB in the end (delta: -143.2 MB). Peak memory consumption was 7.8 MB. Max. memory is 7.1 GB. [2019-09-19 21:54:39,094 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 141.6 MB. Free memory was 106.4 MB in the beginning and 106.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-19 21:54:39,095 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.86 ms. Allocated memory is still 141.6 MB. Free memory was 87.7 MB in the beginning and 78.0 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-09-19 21:54:39,096 INFO L168 Benchmark]: Boogie Preprocessor took 115.76 ms. Allocated memory was 141.6 MB in the beginning and 200.3 MB in the end (delta: 58.7 MB). Free memory was 78.0 MB in the beginning and 177.4 MB in the end (delta: -99.5 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2019-09-19 21:54:39,097 INFO L168 Benchmark]: RCFGBuilder took 270.70 ms. Allocated memory is still 200.3 MB. Free memory was 177.4 MB in the beginning and 163.9 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2019-09-19 21:54:39,098 INFO L168 Benchmark]: Sifa took 93858.98 ms. Allocated memory was 200.3 MB in the beginning and 292.6 MB in the end (delta: 92.3 MB). Free memory was 163.9 MB in the beginning and 231.1 MB in the end (delta: -67.2 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. [2019-09-19 21:54:39,102 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 141.6 MB. Free memory was 106.4 MB in the beginning and 106.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 259.86 ms. Allocated memory is still 141.6 MB. Free memory was 87.7 MB in the beginning and 78.0 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.76 ms. Allocated memory was 141.6 MB in the beginning and 200.3 MB in the end (delta: 58.7 MB). Free memory was 78.0 MB in the beginning and 177.4 MB in the end (delta: -99.5 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 270.70 ms. Allocated memory is still 200.3 MB. Free memory was 177.4 MB in the beginning and 163.9 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * Sifa took 93858.98 ms. Allocated memory was 200.3 MB in the beginning and 292.6 MB in the end (delta: 92.3 MB). Free memory was 163.9 MB in the beginning and 231.1 MB in the end (delta: -67.2 MB). Peak memory consumption was 25.1 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]: 93792, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 181, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 87, TOOLS_POST_TIME[ms]: 111, TOOLS_POST_CALL_APPLICATIONS: 90, TOOLS_POST_CALL_TIME[ms]: 60666, TOOLS_POST_RETURN_APPLICATIONS: 82, TOOLS_POST_RETURN_TIME[ms]: 261, TOOLS_QUANTIFIERELIM_APPLICATIONS: 257, TOOLS_QUANTIFIERELIM_TIME[ms]: 60923, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 12802, FLUID_QUERY_TIME[ms]: 0, FLUID_QUERIES: 198, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 38, DOMAIN_JOIN_TIME[ms]: 16082, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 13, DOMAIN_WIDEN_TIME[ms]: 10156, DOMAIN_ISSUBSETEQ_APPLICATIONS: 17, DOMAIN_ISSUBSETEQ_TIME[ms]: 6355, DOMAIN_ISBOTTOM_APPLICATIONS: 20, DOMAIN_ISBOTTOM_TIME[ms]: 57, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 86644, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 86644, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 17, CALL_SUMMARIZER_APPLICATIONS: 82, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME[ms]: 54, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 53, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 29, DAG_COMPRESSION_PROCESSED_NODES: 263, DAG_COMPRESSION_RETAINED_NODES: 82 - UnprovableResult [Line: 12]: 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 370#(and (= 0 __VERIFIER_assert_~cond) (= |__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...