/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/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-circular-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:23:45,631 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:23:45,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:23:45,671 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:23:45,671 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:23:45,672 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:23:45,679 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:23:45,681 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:23:45,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:23:45,688 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:23:45,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:23:45,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:23:45,691 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:23:45,692 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:23:45,693 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:23:45,694 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:23:45,695 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:23:45,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:23:45,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:23:45,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:23:45,702 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:23:45,704 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:23:45,705 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:23:45,706 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:23:45,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:23:45,709 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:23:45,710 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:23:45,711 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:23:45,711 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:23:45,712 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:23:45,713 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:23:45,714 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:23:45,715 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:23:45,716 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:23:45,717 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:23:45,717 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:23:45,718 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:23:45,718 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:23:45,719 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:23:45,720 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:23:45,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:23:45,722 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 04:23:45,749 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:23:45,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:23:45,750 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:23:45,751 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:23:45,751 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:23:45,751 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:23:45,751 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:23:45,752 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:23:45,752 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:23:45,752 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:23:45,752 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:23:45,752 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:23:45,753 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:23:45,753 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:23:45,753 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:23:45,753 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:23:45,753 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:23:45,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:23:45,754 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:23:45,754 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:23:45,754 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:23:45,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:23:45,755 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:23:45,755 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:23:45,755 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:23:45,755 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:23:45,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:23:45,756 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:23:45,756 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:23:45,756 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:23:46,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:23:46,267 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:23:46,271 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:23:46,274 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:23:46,274 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:23:46,276 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-circular-1.i [2020-09-25 04:23:46,371 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f7011d152/a70ec9e13ad843c594c0d93105e627af/FLAG4937e45f9 [2020-09-25 04:23:47,025 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:23:47,026 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/dll-circular-1.i [2020-09-25 04:23:47,045 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f7011d152/a70ec9e13ad843c594c0d93105e627af/FLAG4937e45f9 [2020-09-25 04:23:47,275 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f7011d152/a70ec9e13ad843c594c0d93105e627af [2020-09-25 04:23:47,288 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:23:47,293 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:23:47,295 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:23:47,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:23:47,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:23:47,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:23:47" (1/1) ... [2020-09-25 04:23:47,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38567abb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:47, skipping insertion in model container [2020-09-25 04:23:47,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:23:47" (1/1) ... [2020-09-25 04:23:47,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:23:47,368 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:23:47,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:23:47,852 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:23:47,908 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:23:47,967 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:23:47,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:47 WrapperNode [2020-09-25 04:23:47,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:23:47,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:23:47,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:23:47,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:23:47,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:47" (1/1) ... [2020-09-25 04:23:47,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:47" (1/1) ... [2020-09-25 04:23:48,008 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:47" (1/1) ... [2020-09-25 04:23:48,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:47" (1/1) ... [2020-09-25 04:23:48,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:47" (1/1) ... [2020-09-25 04:23:48,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:47" (1/1) ... [2020-09-25 04:23:48,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:47" (1/1) ... [2020-09-25 04:23:48,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:23:48,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:23:48,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:23:48,043 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:23:48,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:47" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-25 04:23:48,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:23:48,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:23:48,122 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:23:48,122 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 04:23:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 04:23:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 04:23:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 04:23:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 04:23:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 04:23:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 04:23:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 04:23:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 04:23:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 04:23:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 04:23:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 04:23:48,125 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 04:23:48,125 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 04:23:48,125 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 04:23:48,125 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 04:23:48,126 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 04:23:48,126 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 04:23:48,126 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 04:23:48,126 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 04:23:48,126 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 04:23:48,127 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 04:23:48,127 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 04:23:48,127 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 04:23:48,127 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 04:23:48,127 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 04:23:48,127 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 04:23:48,128 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 04:23:48,128 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 04:23:48,128 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 04:23:48,128 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 04:23:48,128 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 04:23:48,129 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 04:23:48,129 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 04:23:48,129 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 04:23:48,129 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 04:23:48,129 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 04:23:48,129 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 04:23:48,129 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 04:23:48,130 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 04:23:48,130 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 04:23:48,130 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 04:23:48,130 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 04:23:48,130 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 04:23:48,130 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 04:23:48,131 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 04:23:48,131 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 04:23:48,131 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 04:23:48,131 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 04:23:48,131 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 04:23:48,131 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:23:48,132 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 04:23:48,132 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 04:23:48,132 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:23:48,132 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 04:23:48,132 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 04:23:48,132 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 04:23:48,133 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 04:23:48,133 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 04:23:48,133 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 04:23:48,133 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 04:23:48,133 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 04:23:48,133 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 04:23:48,133 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 04:23:48,134 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 04:23:48,134 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 04:23:48,134 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 04:23:48,134 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 04:23:48,134 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 04:23:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 04:23:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 04:23:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 04:23:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 04:23:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 04:23:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 04:23:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 04:23:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 04:23:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 04:23:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 04:23:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 04:23:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 04:23:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 04:23:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 04:23:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 04:23:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 04:23:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 04:23:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 04:23:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 04:23:48,138 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 04:23:48,138 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 04:23:48,138 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 04:23:48,138 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 04:23:48,138 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 04:23:48,138 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 04:23:48,139 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 04:23:48,139 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 04:23:48,139 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 04:23:48,139 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 04:23:48,139 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 04:23:48,139 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 04:23:48,139 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 04:23:48,140 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 04:23:48,140 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 04:23:48,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:23:48,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:23:48,140 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:23:48,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:23:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:23:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:23:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:23:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:23:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:23:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:23:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:23:48,750 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:23:48,751 INFO L295 CfgBuilder]: Removed 9 assume(true) statements. [2020-09-25 04:23:48,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:23:48 BoogieIcfgContainer [2020-09-25 04:23:48,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:23:48,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:23:48,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:23:48,762 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:23:48,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:23:47" (1/3) ... [2020-09-25 04:23:48,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5091c4b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:23:48, skipping insertion in model container [2020-09-25 04:23:48,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:23:47" (2/3) ... [2020-09-25 04:23:48,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5091c4b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:23:48, skipping insertion in model container [2020-09-25 04:23:48,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:23:48" (3/3) ... [2020-09-25 04:23:48,768 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-circular-1.i [2020-09-25 04:23:48,781 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:23:48,793 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-09-25 04:23:48,817 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-25 04:23:48,860 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:23:48,860 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:23:48,860 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:23:48,861 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:23:48,861 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:23:48,861 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:23:48,861 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:23:48,861 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:23:48,898 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states. [2020-09-25 04:23:48,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-25 04:23:48,918 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:23:48,920 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:23:48,920 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:23:48,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:23:48,930 INFO L82 PathProgramCache]: Analyzing trace with hash -740897811, now seen corresponding path program 1 times [2020-09-25 04:23:48,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:23:48,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [395368460] [2020-09-25 04:23:48,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:23:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:49,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:49,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:49,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:49,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:23:49,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:23:49,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 711 [2020-09-25 04:23:49,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:49,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:49,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:23:49,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 04:23:49,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:23:49,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:23:49,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:23:49,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:49,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:49,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:49,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:23:49,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:23:49,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:23:49,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:49,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:49,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:23:49,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:23:49,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:23:49,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:23:49,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:23:49,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [395368460] [2020-09-25 04:23:49,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:23:49,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:23:49,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945926730] [2020-09-25 04:23:49,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:23:49,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:23:49,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:23:49,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:23:49,938 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 3 states. [2020-09-25 04:23:50,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:23:50,234 INFO L93 Difference]: Finished difference Result 179 states and 215 transitions. [2020-09-25 04:23:50,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:23:50,238 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-09-25 04:23:50,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:23:50,259 INFO L225 Difference]: With dead ends: 179 [2020-09-25 04:23:50,259 INFO L226 Difference]: Without dead ends: 77 [2020-09-25 04:23:50,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:23:50,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-09-25 04:23:50,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-09-25 04:23:50,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-09-25 04:23:50,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2020-09-25 04:23:50,346 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 20 [2020-09-25 04:23:50,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:23:50,347 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2020-09-25 04:23:50,347 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:23:50,347 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2020-09-25 04:23:50,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-25 04:23:50,349 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:23:50,349 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:23:50,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:23:50,351 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:23:50,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:23:50,351 INFO L82 PathProgramCache]: Analyzing trace with hash -2066269805, now seen corresponding path program 1 times [2020-09-25 04:23:50,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:23:50,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [733566685] [2020-09-25 04:23:50,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:23:50,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:50,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:50,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:50,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 04:23:50,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:23:50,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 344 [2020-09-25 04:23:50,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:50,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:50,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:23:50,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 04:23:50,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 04:23:50,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:23:50,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:23:50,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:50,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:50,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:50,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:23:50,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:23:50,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 04:23:50,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:50,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:50,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:23:50,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:23:50,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:23:50,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 04:23:50,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:23:50,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [733566685] [2020-09-25 04:23:50,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:23:50,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:23:50,944 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129957171] [2020-09-25 04:23:50,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:23:50,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:23:50,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:23:50,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:23:50,947 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand 9 states. [2020-09-25 04:23:51,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:23:51,515 INFO L93 Difference]: Finished difference Result 155 states and 163 transitions. [2020-09-25 04:23:51,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 04:23:51,516 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-09-25 04:23:51,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:23:51,524 INFO L225 Difference]: With dead ends: 155 [2020-09-25 04:23:51,524 INFO L226 Difference]: Without dead ends: 153 [2020-09-25 04:23:51,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2020-09-25 04:23:51,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-09-25 04:23:51,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 85. [2020-09-25 04:23:51,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-25 04:23:51,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 91 transitions. [2020-09-25 04:23:51,559 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 91 transitions. Word has length 22 [2020-09-25 04:23:51,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:23:51,560 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 91 transitions. [2020-09-25 04:23:51,560 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:23:51,560 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 91 transitions. [2020-09-25 04:23:51,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-09-25 04:23:51,563 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:23:51,563 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:23:51,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:23:51,565 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:23:51,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:23:51,565 INFO L82 PathProgramCache]: Analyzing trace with hash 807179936, now seen corresponding path program 1 times [2020-09-25 04:23:51,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:23:51,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1509372419] [2020-09-25 04:23:51,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:23:51,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:51,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:51,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:52,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:52,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 04:23:52,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:23:52,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 905 [2020-09-25 04:23:52,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:52,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:52,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:23:52,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 04:23:52,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 04:23:52,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:23:52,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:23:52,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:52,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:52,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:52,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:23:52,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:23:52,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:23:52,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:52,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:52,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:23:52,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:23:52,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:23:52,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:23:52,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:23:52,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1509372419] [2020-09-25 04:23:52,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:23:52,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:23:52,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794005385] [2020-09-25 04:23:52,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:23:52,789 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:23:52,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:23:52,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:23:52,791 INFO L87 Difference]: Start difference. First operand 85 states and 91 transitions. Second operand 9 states. [2020-09-25 04:23:53,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:23:53,650 INFO L93 Difference]: Finished difference Result 182 states and 191 transitions. [2020-09-25 04:23:53,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 04:23:53,651 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2020-09-25 04:23:53,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:23:53,654 INFO L225 Difference]: With dead ends: 182 [2020-09-25 04:23:53,655 INFO L226 Difference]: Without dead ends: 180 [2020-09-25 04:23:53,655 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2020-09-25 04:23:53,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-09-25 04:23:53,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 83. [2020-09-25 04:23:53,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-09-25 04:23:53,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 89 transitions. [2020-09-25 04:23:53,666 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 89 transitions. Word has length 31 [2020-09-25 04:23:53,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:23:53,666 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 89 transitions. [2020-09-25 04:23:53,666 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:23:53,667 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 89 transitions. [2020-09-25 04:23:53,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 04:23:53,668 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:23:53,668 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:23:53,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:23:53,669 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:23:53,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:23:53,669 INFO L82 PathProgramCache]: Analyzing trace with hash -988969633, now seen corresponding path program 1 times [2020-09-25 04:23:53,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:23:53,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1946649116] [2020-09-25 04:23:53,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:23:53,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:53,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:54,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:55,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:56,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:56,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 04:23:56,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:23:56,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2309 [2020-09-25 04:23:56,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:56,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:56,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:23:56,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 04:23:56,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 04:23:56,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:23:56,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:23:56,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:56,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:56,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:56,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:23:56,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:23:56,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:23:56,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:56,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:56,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:23:56,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:23:56,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:23:56,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:23:56,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:23:56,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1946649116] [2020-09-25 04:23:56,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:23:56,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:23:56,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957001986] [2020-09-25 04:23:56,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:23:56,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:23:56,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:23:56,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:23:56,069 INFO L87 Difference]: Start difference. First operand 83 states and 89 transitions. Second operand 4 states. [2020-09-25 04:23:56,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:23:56,236 INFO L93 Difference]: Finished difference Result 204 states and 219 transitions. [2020-09-25 04:23:56,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 04:23:56,237 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2020-09-25 04:23:56,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:23:56,238 INFO L225 Difference]: With dead ends: 204 [2020-09-25 04:23:56,239 INFO L226 Difference]: Without dead ends: 142 [2020-09-25 04:23:56,240 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:23:56,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-09-25 04:23:56,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 103. [2020-09-25 04:23:56,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-09-25 04:23:56,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 111 transitions. [2020-09-25 04:23:56,250 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 111 transitions. Word has length 36 [2020-09-25 04:23:56,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:23:56,250 INFO L479 AbstractCegarLoop]: Abstraction has 103 states and 111 transitions. [2020-09-25 04:23:56,250 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:23:56,250 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 111 transitions. [2020-09-25 04:23:56,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-25 04:23:56,252 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:23:56,252 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:23:56,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:23:56,253 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:23:56,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:23:56,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1230029085, now seen corresponding path program 1 times [2020-09-25 04:23:56,254 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:23:56,254 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1142383501] [2020-09-25 04:23:56,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:23:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:56,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:56,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:56,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:57,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:58,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:58,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 04:23:58,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:23:58,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2333 [2020-09-25 04:23:58,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:58,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:58,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 04:23:58,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 04:23:58,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 04:23:58,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:23:58,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:23:58,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:58,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:58,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:58,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:23:58,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:23:58,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:23:58,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:58,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:58,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:23:58,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:23:58,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:23:58,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:23:58,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:23:58,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1142383501] [2020-09-25 04:23:58,876 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:23:58,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 04:23:58,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359862187] [2020-09-25 04:23:58,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 04:23:58,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:23:58,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 04:23:58,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-25 04:23:58,878 INFO L87 Difference]: Start difference. First operand 103 states and 111 transitions. Second operand 12 states. [2020-09-25 04:23:59,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:23:59,536 INFO L93 Difference]: Finished difference Result 196 states and 207 transitions. [2020-09-25 04:23:59,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 04:23:59,537 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 37 [2020-09-25 04:23:59,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:23:59,538 INFO L225 Difference]: With dead ends: 196 [2020-09-25 04:23:59,538 INFO L226 Difference]: Without dead ends: 166 [2020-09-25 04:23:59,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=105, Invalid=401, Unknown=0, NotChecked=0, Total=506 [2020-09-25 04:23:59,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-09-25 04:23:59,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 111. [2020-09-25 04:23:59,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-09-25 04:23:59,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 119 transitions. [2020-09-25 04:23:59,549 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 119 transitions. Word has length 37 [2020-09-25 04:23:59,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:23:59,549 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 119 transitions. [2020-09-25 04:23:59,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 04:23:59,550 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 119 transitions. [2020-09-25 04:23:59,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 04:23:59,551 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:23:59,551 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:23:59,552 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:23:59,552 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:23:59,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:23:59,552 INFO L82 PathProgramCache]: Analyzing trace with hash 626563183, now seen corresponding path program 1 times [2020-09-25 04:23:59,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:23:59,553 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440513249] [2020-09-25 04:23:59,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:23:59,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:59,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:00,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:01,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:01,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 04:24:01,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:24:01,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1466 [2020-09-25 04:24:01,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:01,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:01,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 04:24:01,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 04:24:01,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 04:24:01,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:01,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:01,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:01,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:01,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:01,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:01,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:01,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:24:01,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:01,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:01,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:01,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:01,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:01,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:01,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:24:01,368 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [440513249] [2020-09-25 04:24:01,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:24:01,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 04:24:01,369 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916708950] [2020-09-25 04:24:01,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 04:24:01,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:01,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 04:24:01,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-09-25 04:24:01,371 INFO L87 Difference]: Start difference. First operand 111 states and 119 transitions. Second operand 14 states. [2020-09-25 04:24:02,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:02,164 INFO L93 Difference]: Finished difference Result 178 states and 188 transitions. [2020-09-25 04:24:02,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 04:24:02,165 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 40 [2020-09-25 04:24:02,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:02,166 INFO L225 Difference]: With dead ends: 178 [2020-09-25 04:24:02,166 INFO L226 Difference]: Without dead ends: 176 [2020-09-25 04:24:02,167 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=226, Invalid=644, Unknown=0, NotChecked=0, Total=870 [2020-09-25 04:24:02,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-09-25 04:24:02,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 109. [2020-09-25 04:24:02,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-09-25 04:24:02,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 117 transitions. [2020-09-25 04:24:02,176 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 117 transitions. Word has length 40 [2020-09-25 04:24:02,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:02,177 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 117 transitions. [2020-09-25 04:24:02,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 04:24:02,177 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 117 transitions. [2020-09-25 04:24:02,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-09-25 04:24:02,178 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:02,179 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:24:02,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 04:24:02,179 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:24:02,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:02,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1667005657, now seen corresponding path program 1 times [2020-09-25 04:24:02,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:02,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1542137881] [2020-09-25 04:24:02,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:02,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 04:24:02,201 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 04:24:02,201 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 04:24:02,206 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 04:24:02,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 04:24:02 BoogieIcfgContainer [2020-09-25 04:24:02,232 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 04:24:02,239 INFO L168 Benchmark]: Toolchain (without parser) took 14944.44 ms. Allocated memory was 146.3 MB in the beginning and 347.1 MB in the end (delta: 200.8 MB). Free memory was 101.1 MB in the beginning and 167.3 MB in the end (delta: -66.2 MB). Peak memory consumption was 134.6 MB. Max. memory is 7.1 GB. [2020-09-25 04:24:02,240 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 04:24:02,241 INFO L168 Benchmark]: CACSL2BoogieTranslator took 673.22 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 100.5 MB in the beginning and 170.9 MB in the end (delta: -70.4 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-09-25 04:24:02,244 INFO L168 Benchmark]: Boogie Preprocessor took 74.56 ms. Allocated memory is still 203.9 MB. Free memory was 170.9 MB in the beginning and 168.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-25 04:24:02,245 INFO L168 Benchmark]: RCFGBuilder took 713.71 ms. Allocated memory is still 203.9 MB. Free memory was 167.6 MB in the beginning and 118.9 MB in the end (delta: 48.6 MB). Peak memory consumption was 48.6 MB. Max. memory is 7.1 GB. [2020-09-25 04:24:02,246 INFO L168 Benchmark]: TraceAbstraction took 13474.47 ms. Allocated memory was 203.9 MB in the beginning and 347.1 MB in the end (delta: 143.1 MB). Free memory was 118.3 MB in the beginning and 167.3 MB in the end (delta: -49.0 MB). Peak memory consumption was 94.1 MB. Max. memory is 7.1 GB. [2020-09-25 04:24:02,251 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 673.22 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 100.5 MB in the beginning and 170.9 MB in the end (delta: -70.4 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 74.56 ms. Allocated memory is still 203.9 MB. Free memory was 170.9 MB in the beginning and 168.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 713.71 ms. Allocated memory is still 203.9 MB. Free memory was 167.6 MB in the beginning and 118.9 MB in the end (delta: 48.6 MB). Peak memory consumption was 48.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13474.47 ms. Allocated memory was 203.9 MB in the beginning and 347.1 MB in the end (delta: 143.1 MB). Free memory was 118.3 MB in the beginning and 167.3 MB in the end (delta: -49.0 MB). Peak memory consumption was 94.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1023]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L986] SLL* head = malloc(sizeof(SLL)); [L987] head->next = head [L988] head->data = 0 [L990] SLL* x = head; [L991] int state = 1; [L994] COND FALSE !(__VERIFIER_nondet_int()) [L1016] x->data = state [L1018] EXPR head->next [L1018] x = head->next [L1019] COND FALSE !(!(((void*)0) != x)) [L1021] EXPR x->data [L1021] COND TRUE x->data != 0 [L1023] EXPR x->next [L1023] EXPR x->next->data [L1023] EXPR x->next->data != 0 && x->data > x->next->data [L1023] EXPR x->data [L1023] EXPR x->next [L1023] EXPR x->next->data [L1023] EXPR x->next->data != 0 && x->data > x->next->data [L1023] COND TRUE !(x->next->data != 0 && x->data > x->next->data) [L1023] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 96 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 13.3s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 502 SDtfs, 1099 SDslu, 1908 SDs, 0 SdLazy, 1275 SolverSat, 103 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 326 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 9.2s InterpolantComputationTime, 227 NumberOfCodeBlocks, 227 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 43932 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...