/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_label13.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 10:13:20,731 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 10:13:20,734 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 10:13:20,752 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 10:13:20,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 10:13:20,755 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 10:13:20,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 10:13:20,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 10:13:20,771 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 10:13:20,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 10:13:20,776 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 10:13:20,777 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 10:13:20,778 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 10:13:20,779 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 10:13:20,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 10:13:20,783 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 10:13:20,784 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 10:13:20,785 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 10:13:20,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 10:13:20,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 10:13:20,796 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 10:13:20,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 10:13:20,802 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 10:13:20,803 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 10:13:20,806 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 10:13:20,806 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 10:13:20,806 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 10:13:20,808 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 10:13:20,810 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 10:13:20,810 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 10:13:20,811 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 10:13:20,813 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 10:13:20,813 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 10:13:20,816 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 10:13:20,818 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 10:13:20,818 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 10:13:20,819 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 10:13:20,819 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 10:13:20,819 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 10:13:20,820 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 10:13:20,821 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 10:13:20,822 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 10:13:20,852 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 10:13:20,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 10:13:20,853 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 10:13:20,853 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 10:13:20,853 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 10:13:20,854 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 10:13:20,854 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 10:13:20,854 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 10:13:20,854 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 10:13:20,854 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 10:13:20,855 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 10:13:20,855 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 10:13:20,855 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 10:13:20,855 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 10:13:20,856 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 10:13:20,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 10:13:20,857 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 10:13:20,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 10:13:20,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 10:13:20,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 10:13:20,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 10:13:20,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 10:13:20,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 10:13:20,858 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 10:13:20,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 10:13:20,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 10:13:20,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 10:13:20,859 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 10:13:20,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 10:13:20,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 10:13:20,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 10:13:20,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 10:13:20,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 10:13:20,860 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 10:13:20,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 10:13:20,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 10:13:20,861 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 10:13:20,861 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 10:13:21,155 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 10:13:21,174 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 10:13:21,177 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 10:13:21,179 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 10:13:21,179 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 10:13:21,180 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label13.c [2019-11-24 10:13:21,251 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f63abb76/a2542d28236d425abffced0a1c4fc057/FLAG9a445ad2b [2019-11-24 10:13:21,774 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 10:13:21,774 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label13.c [2019-11-24 10:13:21,785 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f63abb76/a2542d28236d425abffced0a1c4fc057/FLAG9a445ad2b [2019-11-24 10:13:22,116 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f63abb76/a2542d28236d425abffced0a1c4fc057 [2019-11-24 10:13:22,127 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 10:13:22,128 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 10:13:22,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 10:13:22,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 10:13:22,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 10:13:22,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:13:22" (1/1) ... [2019-11-24 10:13:22,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b2f48ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:13:22, skipping insertion in model container [2019-11-24 10:13:22,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:13:22" (1/1) ... [2019-11-24 10:13:22,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 10:13:22,202 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 10:13:22,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 10:13:22,695 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 10:13:22,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 10:13:22,842 INFO L208 MainTranslator]: Completed translation [2019-11-24 10:13:22,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:13:22 WrapperNode [2019-11-24 10:13:22,843 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 10:13:22,843 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 10:13:22,844 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 10:13:22,844 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 10:13:22,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:13:22" (1/1) ... [2019-11-24 10:13:22,869 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:13:22" (1/1) ... [2019-11-24 10:13:22,932 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 10:13:22,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 10:13:22,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 10:13:22,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 10:13:22,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:13:22" (1/1) ... [2019-11-24 10:13:22,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:13:22" (1/1) ... [2019-11-24 10:13:22,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:13:22" (1/1) ... [2019-11-24 10:13:22,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:13:22" (1/1) ... [2019-11-24 10:13:22,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:13:22" (1/1) ... [2019-11-24 10:13:23,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:13:22" (1/1) ... [2019-11-24 10:13:23,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:13:22" (1/1) ... [2019-11-24 10:13:23,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 10:13:23,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 10:13:23,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 10:13:23,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 10:13:23,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:13:22" (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 10:13:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 10:13:23,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 10:13:25,151 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 10:13:25,152 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-24 10:13:25,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:13:25 BoogieIcfgContainer [2019-11-24 10:13:25,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 10:13:25,154 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-11-24 10:13:25,154 INFO L271 PluginConnector]: Initializing Sifa... [2019-11-24 10:13:25,154 INFO L275 PluginConnector]: Sifa initialized [2019-11-24 10:13:25,156 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:13:25" (1/1) ... [2019-11-24 10:13:25,156 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 10:13:25,180 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-11-24 10:13:25,180 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 10:13:25,189 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 10:13:25,197 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 10:13:25,199 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 10:13:37,255 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-24 10:13:37,261 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-24 10:13:37,279 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-24 10:13:42,167 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 159 [2019-11-24 10:13:42,274 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 159 [2019-11-24 10:13:42,377 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2019-11-24 10:13:42,494 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2019-11-24 10:13:42,596 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2019-11-24 10:13:42,697 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2019-11-24 10:13:42,808 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 159 [2019-11-24 10:13:42,917 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 159 [2019-11-24 10:13:43,036 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2019-11-24 10:13:43,153 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-11-24 10:13:43,260 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-11-24 10:13:43,367 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-11-24 10:13:43,482 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2019-11-24 10:13:43,596 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2019-11-24 10:13:43,716 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2019-11-24 10:13:43,843 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2019-11-24 10:13:43,963 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2019-11-24 10:13:44,085 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2019-11-24 10:13:44,232 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-11-24 10:13:44,356 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-11-24 10:13:44,480 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-11-24 10:13:44,615 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-11-24 10:13:44,753 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-11-24 10:13:44,882 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-11-24 10:13:45,012 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-11-24 10:13:45,153 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-11-24 10:13:45,282 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-11-24 10:13:45,425 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2019-11-24 10:13:45,558 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2019-11-24 10:13:45,691 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2019-11-24 10:13:45,831 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-11-24 10:13:45,970 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-11-24 10:13:46,109 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-11-24 10:13:46,264 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 171 [2019-11-24 10:13:46,410 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 171 [2019-11-24 10:13:46,563 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-11-24 10:13:46,709 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 170 [2019-11-24 10:13:46,855 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 170 [2019-11-24 10:13:46,998 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-11-24 10:13:47,159 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-11-24 10:13:47,307 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-11-24 10:13:47,455 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-11-24 10:13:47,607 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 171 [2019-11-24 10:13:47,759 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 171 [2019-11-24 10:13:47,923 WARN L192 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-11-24 10:13:48,083 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 171 [2019-11-24 10:13:48,237 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 171 [2019-11-24 10:13:48,386 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-11-24 10:13:48,542 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 172 [2019-11-24 10:13:48,699 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 172 [2019-11-24 10:13:48,853 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2019-11-24 10:13:49,012 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2019-11-24 10:13:49,170 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2019-11-24 10:13:49,328 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2019-11-24 10:13:49,330 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 15 [2019-11-24 10:13:49,336 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 15 [2019-11-24 10:13:53,568 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2019-11-24 10:13:53,575 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2019-11-24 10:13:53,590 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2019-11-24 10:13:57,276 WARN L192 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-24 10:13:57,493 WARN L192 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-24 10:13:57,626 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-24 10:13:58,876 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2019-11-24 10:13:58,980 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2019-11-24 10:13:59,083 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2019-11-24 10:13:59,187 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2019-11-24 10:13:59,290 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2019-11-24 10:13:59,393 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2019-11-24 10:13:59,516 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 160 [2019-11-24 10:13:59,622 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 160 [2019-11-24 10:13:59,724 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2019-11-24 10:13:59,837 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2019-11-24 10:13:59,945 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2019-11-24 10:14:00,052 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2019-11-24 10:14:00,172 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2019-11-24 10:14:00,283 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2019-11-24 10:14:00,394 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2019-11-24 10:14:00,515 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 167 [2019-11-24 10:14:00,637 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 167 [2019-11-24 10:14:00,757 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-11-24 10:14:00,891 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-11-24 10:14:01,012 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-11-24 10:14:01,135 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-11-24 10:14:01,265 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2019-11-24 10:14:01,394 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2019-11-24 10:14:01,524 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2019-11-24 10:14:01,708 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2019-11-24 10:14:01,842 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2019-11-24 10:14:01,977 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2019-11-24 10:14:02,110 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-11-24 10:14:02,244 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-11-24 10:14:02,377 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-11-24 10:14:02,527 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-11-24 10:14:02,666 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-11-24 10:14:02,804 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-11-24 10:14:02,952 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 172 [2019-11-24 10:14:03,096 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 172 [2019-11-24 10:14:03,241 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-11-24 10:14:03,395 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 171 [2019-11-24 10:14:03,543 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 171 [2019-11-24 10:14:03,686 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-11-24 10:14:03,828 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-11-24 10:14:03,969 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-11-24 10:14:04,110 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-11-24 10:14:04,267 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 172 [2019-11-24 10:14:04,422 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 172 [2019-11-24 10:14:04,572 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2019-11-24 10:14:04,732 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 173 [2019-11-24 10:14:04,891 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 173 [2019-11-24 10:14:05,043 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2019-11-24 10:14:05,218 WARN L192 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2019-11-24 10:14:05,376 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2019-11-24 10:14:05,535 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2019-11-24 10:14:05,708 WARN L192 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 180 [2019-11-24 10:14:05,879 WARN L192 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 180 [2019-11-24 10:14:06,047 WARN L192 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2019-11-24 10:14:06,048 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 15 [2019-11-24 10:14:06,057 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 15 [2019-11-24 10:14:10,440 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2019-11-24 10:14:10,444 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2019-11-24 10:14:10,461 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-24 10:14:10,473 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-11-24 10:14:10,473 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-11-24 10:14:10,474 INFO L168 Benchmark]: Toolchain (without parser) took 48346.36 ms. Allocated memory was 138.9 MB in the beginning and 1.1 GB in the end (delta: 982.5 MB). Free memory was 101.8 MB in the beginning and 503.3 MB in the end (delta: -401.5 MB). Peak memory consumption was 581.0 MB. Max. memory is 7.1 GB. [2019-11-24 10:14:10,475 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 138.9 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 10:14:10,476 INFO L168 Benchmark]: CACSL2BoogieTranslator took 713.80 ms. Allocated memory was 138.9 MB in the beginning and 204.5 MB in the end (delta: 65.5 MB). Free memory was 101.6 MB in the beginning and 169.1 MB in the end (delta: -67.6 MB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. [2019-11-24 10:14:10,477 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.32 ms. Allocated memory is still 204.5 MB. Free memory was 169.1 MB in the beginning and 163.6 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. [2019-11-24 10:14:10,477 INFO L168 Benchmark]: Boogie Preprocessor took 99.65 ms. Allocated memory is still 204.5 MB. Free memory was 163.6 MB in the beginning and 159.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2019-11-24 10:14:10,478 INFO L168 Benchmark]: RCFGBuilder took 2121.62 ms. Allocated memory was 204.5 MB in the beginning and 248.0 MB in the end (delta: 43.5 MB). Free memory was 159.5 MB in the beginning and 187.2 MB in the end (delta: -27.7 MB). Peak memory consumption was 113.4 MB. Max. memory is 7.1 GB. [2019-11-24 10:14:10,479 INFO L168 Benchmark]: Sifa took 45318.92 ms. Allocated memory was 248.0 MB in the beginning and 1.1 GB in the end (delta: 873.5 MB). Free memory was 187.2 MB in the beginning and 503.3 MB in the end (delta: -316.0 MB). Peak memory consumption was 557.4 MB. Max. memory is 7.1 GB. [2019-11-24 10:14:10,484 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 138.9 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 713.80 ms. Allocated memory was 138.9 MB in the beginning and 204.5 MB in the end (delta: 65.5 MB). Free memory was 101.6 MB in the beginning and 169.1 MB in the end (delta: -67.6 MB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 88.32 ms. Allocated memory is still 204.5 MB. Free memory was 169.1 MB in the beginning and 163.6 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.65 ms. Allocated memory is still 204.5 MB. Free memory was 163.6 MB in the beginning and 159.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2121.62 ms. Allocated memory was 204.5 MB in the beginning and 248.0 MB in the end (delta: 43.5 MB). Free memory was 159.5 MB in the beginning and 187.2 MB in the end (delta: -27.7 MB). Peak memory consumption was 113.4 MB. Max. memory is 7.1 GB. * Sifa took 45318.92 ms. Allocated memory was 248.0 MB in the beginning and 1.1 GB in the end (delta: 873.5 MB). Free memory was 187.2 MB in the beginning and 503.3 MB in the end (delta: -316.0 MB). Peak memory consumption was 557.4 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]: 45282, 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]: 570, 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]: 437, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 25, FLUID_QUERY_TIME[ms]: 25, FLUID_QUERIES: 727, FLUID_YES_ANSWERS: 310, DOMAIN_JOIN_APPLICATIONS: 232, DOMAIN_JOIN_TIME[ms]: 39271, DOMAIN_ALPHA_APPLICATIONS: 310, DOMAIN_ALPHA_TIME[ms]: 4513, DOMAIN_WIDEN_APPLICATIONS: 4, DOMAIN_WIDEN_TIME[ms]: 223, DOMAIN_ISSUBSETEQ_APPLICATIONS: 16, DOMAIN_ISSUBSETEQ_TIME[ms]: 34, DOMAIN_ISBOTTOM_APPLICATIONS: 232, DOMAIN_ISBOTTOM_TIME[ms]: 434, LOOP_SUMMARIZER_APPLICATIONS: 12, LOOP_SUMMARIZER_CACHE_MISSES: 12, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 44439, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 44439, 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]: 8, REGEX_TO_DAG_TIME[ms]: 7, DAG_COMPRESSION_TIME[ms]: 102, DAG_COMPRESSION_PROCESSED_NODES: 2228, DAG_COMPRESSION_RETAINED_NODES: 403 - UnprovableResult [Line: 430]: 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 8137#(and (<= 21 ~u~0) (<= ~x~0 24) (<= 6 ~f~0) (<= 1 ~a~0) (= ~a25~0 1) (= ~a21~0 1) (<= 23 ~w~0) (<= 3 ~c~0) (<= ~c~0 3) (<= ~z~0 26) (<= 7 ~a28~0) (= ~a28~0 9) (not (= ~a19~0 1)) (<= ~a28~0 11) (<= 0 ~a25~0) (<= ~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) (<= |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...