/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label02.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 10:12:18,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 10:12:18,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 10:12:18,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 10:12:18,201 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 10:12:18,203 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 10:12:18,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 10:12:18,217 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 10:12:18,218 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 10:12:18,219 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 10:12:18,221 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 10:12:18,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 10:12:18,223 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 10:12:18,227 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 10:12:18,229 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 10:12:18,231 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 10:12:18,232 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 10:12:18,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 10:12:18,236 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 10:12:18,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 10:12:18,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 10:12:18,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 10:12:18,243 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 10:12:18,246 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 10:12:18,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 10:12:18,253 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 10:12:18,253 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 10:12:18,254 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 10:12:18,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 10:12:18,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 10:12:18,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 10:12:18,259 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 10:12:18,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 10:12:18,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 10:12:18,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 10:12:18,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 10:12:18,264 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-24 10:12:18,286 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 10:12:18,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 10:12:18,287 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 10:12:18,288 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 10:12:18,288 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 10:12:18,288 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 10:12:18,288 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 10:12:18,288 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 10:12:18,289 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 10:12:18,289 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 10:12:18,289 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 10:12:18,289 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 10:12:18,289 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 10:12:18,290 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 10:12:18,290 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 10:12:18,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 10:12:18,291 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 10:12:18,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 10:12:18,291 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 10:12:18,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 10:12:18,291 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 10:12:18,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 10:12:18,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 10:12:18,292 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 10:12:18,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 10:12:18,292 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 10:12:18,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 10:12:18,293 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 10:12:18,293 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 10:12:18,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 10:12:18,293 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 10:12:18,294 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 10:12:18,294 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 10:12:18,294 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 10:12:18,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 10:12:18,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 10:12:18,295 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 10:12:18,295 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 10:12:18,556 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 10:12:18,577 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 10:12:18,580 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 10:12:18,581 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 10:12:18,581 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 10:12:18,582 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label02.c [2019-11-24 10:12:18,642 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24f5a8d58/2e77e556a66a46389a3c32b8d14e59f7/FLAG04f60dba4 [2019-11-24 10:12:19,188 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 10:12:19,190 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label02.c [2019-11-24 10:12:19,207 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24f5a8d58/2e77e556a66a46389a3c32b8d14e59f7/FLAG04f60dba4 [2019-11-24 10:12:19,410 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24f5a8d58/2e77e556a66a46389a3c32b8d14e59f7 [2019-11-24 10:12:19,420 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 10:12:19,421 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 10:12:19,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 10:12:19,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 10:12:19,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 10:12:19,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:12:19" (1/1) ... [2019-11-24 10:12:19,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66da9fbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:19, skipping insertion in model container [2019-11-24 10:12:19,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:12:19" (1/1) ... [2019-11-24 10:12:19,439 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 10:12:19,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 10:12:19,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 10:12:19,954 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 10:12:20,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 10:12:20,119 INFO L208 MainTranslator]: Completed translation [2019-11-24 10:12:20,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:20 WrapperNode [2019-11-24 10:12:20,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 10:12:20,121 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 10:12:20,121 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 10:12:20,121 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 10:12:20,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:20" (1/1) ... [2019-11-24 10:12:20,143 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:20" (1/1) ... [2019-11-24 10:12:20,212 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 10:12:20,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 10:12:20,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 10:12:20,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 10:12:20,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:20" (1/1) ... [2019-11-24 10:12:20,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:20" (1/1) ... [2019-11-24 10:12:20,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:20" (1/1) ... [2019-11-24 10:12:20,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:20" (1/1) ... [2019-11-24 10:12:20,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:20" (1/1) ... [2019-11-24 10:12:20,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:20" (1/1) ... [2019-11-24 10:12:20,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:20" (1/1) ... [2019-11-24 10:12:20,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 10:12:20,305 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 10:12:20,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 10:12:20,305 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 10:12:20,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:20" (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 [2019-11-24 10:12:20,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 10:12:20,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 10:12:22,423 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 10:12:22,423 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-24 10:12:22,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:12:22 BoogieIcfgContainer [2019-11-24 10:12:22,424 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 10:12:22,425 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-11-24 10:12:22,425 INFO L271 PluginConnector]: Initializing Sifa... [2019-11-24 10:12:22,425 INFO L275 PluginConnector]: Sifa initialized [2019-11-24 10:12:22,427 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:12:22" (1/1) ... [2019-11-24 10:12:22,427 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=CompoundDomain ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ CompoundDomain Intern Domains=ExplicitValueDomain;IntervalDomain ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ SizeLimitFluid Max. Disjunctions=8 ♦ Simplification Technique=SIMPLIFY_QUICK ♦ SizeLimitFluid Max. DAG Size=-1 [2019-11-24 10:12:22,451 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-11-24 10:12:22,451 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 10:12:22,459 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 10:12:22,467 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 10:12:22,468 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 10:12:22,852 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2019-11-24 10:12:25,569 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 109 [2019-11-24 10:12:26,493 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-11-24 10:12:26,831 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-11-24 10:12:27,016 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 126 [2019-11-24 10:12:35,794 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 13 [2019-11-24 10:12:35,859 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 13 [2019-11-24 10:12:35,922 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 13 [2019-11-24 10:12:39,947 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-11-24 10:12:40,559 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 161 [2019-11-24 10:12:40,663 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 161 [2019-11-24 10:12:40,769 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2019-11-24 10:12:40,885 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2019-11-24 10:12:40,987 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2019-11-24 10:12:41,095 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2019-11-24 10:12:41,205 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 162 [2019-11-24 10:12:41,314 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 162 [2019-11-24 10:12:41,427 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-11-24 10:12:41,559 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-11-24 10:12:41,666 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-11-24 10:12:41,773 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-11-24 10:12:41,898 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 162 [2019-11-24 10:12:42,010 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 162 [2019-11-24 10:12:42,118 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-11-24 10:12:42,252 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-11-24 10:12:42,369 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-11-24 10:12:42,491 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-11-24 10:12:42,612 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-11-24 10:12:42,730 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-11-24 10:12:42,848 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-11-24 10:12:42,979 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2019-11-24 10:12:43,104 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2019-11-24 10:12:43,228 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2019-11-24 10:12:43,382 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-11-24 10:12:43,513 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-11-24 10:12:43,641 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-11-24 10:12:43,783 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-11-24 10:12:43,917 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-11-24 10:12:44,051 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-11-24 10:12:44,187 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-11-24 10:12:44,321 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-11-24 10:12:44,464 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-11-24 10:12:44,614 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-11-24 10:12:44,752 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-11-24 10:12:44,891 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-11-24 10:12:45,041 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2019-11-24 10:12:45,184 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2019-11-24 10:12:45,327 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2019-11-24 10:12:45,493 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 174 [2019-11-24 10:12:45,644 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 174 [2019-11-24 10:12:45,793 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2019-11-24 10:12:45,944 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 173 [2019-11-24 10:12:46,095 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 173 [2019-11-24 10:12:46,245 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2019-11-24 10:12:46,421 WARN L192 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2019-11-24 10:12:46,579 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2019-11-24 10:12:46,726 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2019-11-24 10:12:46,885 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 174 [2019-11-24 10:12:47,041 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 174 [2019-11-24 10:12:47,195 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2019-11-24 10:12:47,365 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 174 [2019-11-24 10:12:47,528 WARN L192 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 174 [2019-11-24 10:12:47,682 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2019-11-24 10:12:47,844 WARN L192 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 175 [2019-11-24 10:12:48,004 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 175 [2019-11-24 10:12:48,164 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2019-11-24 10:12:48,329 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2019-11-24 10:12:48,498 WARN L192 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2019-11-24 10:12:48,663 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2019-11-24 10:12:48,664 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 18 [2019-11-24 10:12:48,674 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 18 [2019-11-24 10:12:50,531 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-11-24 10:12:50,644 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-11-24 10:12:50,776 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2019-11-24 10:12:53,143 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 14 [2019-11-24 10:12:53,218 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 14 [2019-11-24 10:12:53,306 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 14 [2019-11-24 10:12:58,375 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-11-24 10:12:58,579 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-11-24 10:12:58,693 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-11-24 10:12:58,799 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-11-24 10:12:58,904 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-11-24 10:12:59,011 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-11-24 10:12:59,117 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-11-24 10:12:59,222 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-11-24 10:12:59,339 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 163 [2019-11-24 10:12:59,447 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 163 [2019-11-24 10:12:59,554 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-11-24 10:12:59,680 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-11-24 10:12:59,793 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-11-24 10:12:59,903 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-11-24 10:13:00,027 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2019-11-24 10:13:00,143 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2019-11-24 10:13:00,260 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2019-11-24 10:13:00,394 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 170 [2019-11-24 10:13:00,521 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 170 [2019-11-24 10:13:00,645 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-11-24 10:13:00,784 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-11-24 10:13:00,913 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-11-24 10:13:01,039 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-11-24 10:13:01,173 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 171 [2019-11-24 10:13:01,308 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 171 [2019-11-24 10:13:01,440 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-11-24 10:13:01,579 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-11-24 10:13:01,711 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-11-24 10:13:01,851 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-11-24 10:13:01,991 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2019-11-24 10:13:02,129 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2019-11-24 10:13:02,266 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2019-11-24 10:13:02,418 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2019-11-24 10:13:02,560 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2019-11-24 10:13:02,704 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2019-11-24 10:13:02,858 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 175 [2019-11-24 10:13:03,011 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 175 [2019-11-24 10:13:03,159 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2019-11-24 10:13:03,318 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 174 [2019-11-24 10:13:03,470 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 174 [2019-11-24 10:13:03,617 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2019-11-24 10:13:03,765 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2019-11-24 10:13:03,911 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2019-11-24 10:13:04,065 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2019-11-24 10:13:04,224 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 175 [2019-11-24 10:13:04,377 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 175 [2019-11-24 10:13:04,529 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2019-11-24 10:13:04,694 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 176 [2019-11-24 10:13:04,859 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 176 [2019-11-24 10:13:05,018 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2019-11-24 10:13:05,199 WARN L192 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2019-11-24 10:13:05,363 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2019-11-24 10:13:05,534 WARN L192 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2019-11-24 10:13:05,710 WARN L192 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 183 [2019-11-24 10:13:05,886 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 183 [2019-11-24 10:13:06,060 WARN L192 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2019-11-24 10:13:06,061 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 18 [2019-11-24 10:13:06,071 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 18 [2019-11-24 10:13:09,985 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 14 [2019-11-24 10:13:10,057 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 14 [2019-11-24 10:13:10,139 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-24 10:13:10,152 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-11-24 10:13:10,152 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-11-24 10:13:10,155 INFO L168 Benchmark]: Toolchain (without parser) took 50732.68 ms. Allocated memory was 145.8 MB in the beginning and 1.0 GB in the end (delta: 887.6 MB). Free memory was 102.3 MB in the beginning and 592.8 MB in the end (delta: -490.5 MB). Peak memory consumption was 397.2 MB. Max. memory is 7.1 GB. [2019-11-24 10:13:10,160 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-11-24 10:13:10,162 INFO L168 Benchmark]: CACSL2BoogieTranslator took 698.13 ms. Allocated memory was 145.8 MB in the beginning and 205.5 MB in the end (delta: 59.8 MB). Free memory was 102.1 MB in the beginning and 172.5 MB in the end (delta: -70.5 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. [2019-11-24 10:13:10,163 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.72 ms. Allocated memory is still 205.5 MB. Free memory was 171.8 MB in the beginning and 166.9 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2019-11-24 10:13:10,168 INFO L168 Benchmark]: Boogie Preprocessor took 91.61 ms. Allocated memory is still 205.5 MB. Free memory was 166.9 MB in the beginning and 160.1 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 7.1 GB. [2019-11-24 10:13:10,169 INFO L168 Benchmark]: RCFGBuilder took 2119.83 ms. Allocated memory was 205.5 MB in the beginning and 249.0 MB in the end (delta: 43.5 MB). Free memory was 160.1 MB in the beginning and 191.8 MB in the end (delta: -31.8 MB). Peak memory consumption was 113.0 MB. Max. memory is 7.1 GB. [2019-11-24 10:13:10,171 INFO L168 Benchmark]: Sifa took 47727.60 ms. Allocated memory was 249.0 MB in the beginning and 1.0 GB in the end (delta: 784.3 MB). Free memory was 191.8 MB in the beginning and 592.8 MB in the end (delta: -400.9 MB). Peak memory consumption was 383.4 MB. Max. memory is 7.1 GB. [2019-11-24 10:13:10,181 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 698.13 ms. Allocated memory was 145.8 MB in the beginning and 205.5 MB in the end (delta: 59.8 MB). Free memory was 102.1 MB in the beginning and 172.5 MB in the end (delta: -70.5 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 91.72 ms. Allocated memory is still 205.5 MB. Free memory was 171.8 MB in the beginning and 166.9 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 91.61 ms. Allocated memory is still 205.5 MB. Free memory was 166.9 MB in the beginning and 160.1 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2119.83 ms. Allocated memory was 205.5 MB in the beginning and 249.0 MB in the end (delta: 43.5 MB). Free memory was 160.1 MB in the beginning and 191.8 MB in the end (delta: -31.8 MB). Peak memory consumption was 113.0 MB. Max. memory is 7.1 GB. * Sifa took 47727.60 ms. Allocated memory was 249.0 MB in the beginning and 1.0 GB in the end (delta: 784.3 MB). Free memory was 191.8 MB in the beginning and 592.8 MB in the end (delta: -400.9 MB). Peak memory consumption was 383.4 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]: 47689, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 232, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 675, TOOLS_POST_TIME[ms]: 652, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 674, TOOLS_QUANTIFIERELIM_TIME[ms]: 503, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 24, FLUID_QUERY_TIME[ms]: 29, FLUID_QUERIES: 727, FLUID_YES_ANSWERS: 310, DOMAIN_JOIN_APPLICATIONS: 232, DOMAIN_JOIN_TIME[ms]: 40390, DOMAIN_ALPHA_APPLICATIONS: 310, DOMAIN_ALPHA_TIME[ms]: 5481, DOMAIN_WIDEN_APPLICATIONS: 4, DOMAIN_WIDEN_TIME[ms]: 436, DOMAIN_ISSUBSETEQ_APPLICATIONS: 16, DOMAIN_ISSUBSETEQ_TIME[ms]: 43, DOMAIN_ISBOTTOM_APPLICATIONS: 232, DOMAIN_ISBOTTOM_TIME[ms]: 424, LOOP_SUMMARIZER_APPLICATIONS: 12, LOOP_SUMMARIZER_CACHE_MISSES: 12, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 46576, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 46576, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 16, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 3, PATH_EXPR_TIME[ms]: 10, REGEX_TO_DAG_TIME[ms]: 10, DAG_COMPRESSION_TIME[ms]: 107, DAG_COMPRESSION_PROCESSED_NODES: 2153, DAG_COMPRESSION_RETAINED_NODES: 403 - UnprovableResult [Line: 451]: 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 8212#(and (<= 21 ~u~0) (<= ~x~0 24) (<= 6 ~f~0) (<= 1 ~a~0) (= ~a21~0 1) (<= 23 ~w~0) (<= 3 ~c~0) (<= ~c~0 3) (<= ~z~0 26) (<= 7 ~a28~0) (= ~a28~0 8) (<= ~a28~0 11) (<= 0 ~a25~0) (<= ~a19~0 1) (= ~a19~0 1) (<= ULTIMATE.start_main_~input~0 6) (<= ULTIMATE.start_calculate_output_~input 6) (= ~a11~0 1) (<= ~a17~0 8) (<= ~w~0 23) (<= 7 ~a17~0) (<= 0 (+ ULTIMATE.start_main_~output~0 2)) (<= 5 ~e~0) (<= ~a~0 1) (<= 1 |ULTIMATE.start_calculate_output_#in~input|) (<= 1 ULTIMATE.start_calculate_output_~input) (<= 1 ~a21~0) (<= ~d~0 4) (not (= ~a25~0 1)) (<= |ULTIMATE.start_calculate_output_#in~input| 6) (<= 25 ~y~0) (<= ~y~0 25) (<= 22 ~v~0) (<= ~a21~0 1) (<= 0 ~a11~0) (<= ~a25~0 1) (<= ~f~0 6) (<= 0 ~a19~0) (<= ~a11~0 1) (= ~a17~0 7) (<= 4 ~d~0) (<= ~v~0 22) (<= ~u~0 21) (<= 26 ~z~0) (<= ULTIMATE.start_main_~output~0 26) (<= 24 ~x~0) (<= ~e~0 5) (<= 1 ULTIMATE.start_main_~input~0)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...