/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=0.4 --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 05:32:15,529 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:32:15,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:32:15,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:32:15,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:32:15,590 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:32:15,593 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:32:15,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:32:15,600 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:32:15,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:32:15,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:32:15,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:32:15,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:32:15,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:32:15,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:32:15,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:32:15,615 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:32:15,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:32:15,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:32:15,627 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:32:15,631 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:32:15,632 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:32:15,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:32:15,634 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:32:15,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:32:15,647 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:32:15,647 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:32:15,653 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:32:15,654 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:32:15,655 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:32:15,655 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:32:15,661 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:32:15,662 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:32:15,663 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:32:15,665 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:32:15,665 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:32:15,666 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:32:15,666 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:32:15,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:32:15,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:32:15,668 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:32:15,669 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 05:32:15,696 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:32:15,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:32:15,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:32:15,698 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:32:15,698 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:32:15,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:32:15,699 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:32:15,699 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:32:15,699 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:32:15,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:32:15,700 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:32:15,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:32:15,700 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:32:15,700 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:32:15,700 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:32:15,701 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:32:15,701 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:32:15,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:32:15,701 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:32:15,702 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:32:15,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:32:15,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:32:15,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:32:15,702 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:32:15,703 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:32:15,703 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:32:15,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:32:15,703 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:32:15,703 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:32:15,704 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true; [2020-09-25 05:32:16,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:32:16,190 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:32:16,195 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:32:16,197 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:32:16,197 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:32:16,198 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-circular-1.i [2020-09-25 05:32:16,288 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/83477c26d/dc12ff7a0ccb4a078e5c9915c4de96e0/FLAGe0b9dc18e [2020-09-25 05:32:16,931 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:32:16,932 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/dll-circular-1.i [2020-09-25 05:32:16,948 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/83477c26d/dc12ff7a0ccb4a078e5c9915c4de96e0/FLAGe0b9dc18e [2020-09-25 05:32:17,196 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/83477c26d/dc12ff7a0ccb4a078e5c9915c4de96e0 [2020-09-25 05:32:17,211 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:32:17,218 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:32:17,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:32:17,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:32:17,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:32:17,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:32:17" (1/1) ... [2020-09-25 05:32:17,232 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@424d9305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:17, skipping insertion in model container [2020-09-25 05:32:17,232 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:32:17" (1/1) ... [2020-09-25 05:32:17,243 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:32:17,318 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:32:17,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:32:17,849 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:32:17,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:32:17,977 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:32:17,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:17 WrapperNode [2020-09-25 05:32:17,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:32:17,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:32:17,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:32:17,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:32:17,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:17" (1/1) ... [2020-09-25 05:32:18,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:17" (1/1) ... [2020-09-25 05:32:18,019 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:17" (1/1) ... [2020-09-25 05:32:18,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:17" (1/1) ... [2020-09-25 05:32:18,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:17" (1/1) ... [2020-09-25 05:32:18,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:17" (1/1) ... [2020-09-25 05:32:18,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:17" (1/1) ... [2020-09-25 05:32:18,061 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:32:18,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:32:18,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:32:18,066 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:32:18,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:17" (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 05:32:18,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:32:18,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:32:18,154 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:32:18,155 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 05:32:18,155 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 05:32:18,155 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 05:32:18,155 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 05:32:18,155 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 05:32:18,156 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 05:32:18,156 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 05:32:18,156 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 05:32:18,156 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 05:32:18,156 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 05:32:18,156 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 05:32:18,157 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 05:32:18,157 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 05:32:18,157 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 05:32:18,157 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 05:32:18,157 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 05:32:18,158 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 05:32:18,158 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 05:32:18,158 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 05:32:18,158 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 05:32:18,159 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 05:32:18,159 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 05:32:18,159 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 05:32:18,159 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 05:32:18,159 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 05:32:18,159 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 05:32:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 05:32:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 05:32:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 05:32:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 05:32:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 05:32:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 05:32:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 05:32:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 05:32:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 05:32:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 05:32:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 05:32:18,162 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 05:32:18,162 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 05:32:18,162 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 05:32:18,162 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 05:32:18,162 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 05:32:18,162 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 05:32:18,163 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 05:32:18,163 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 05:32:18,163 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 05:32:18,163 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 05:32:18,163 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 05:32:18,163 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 05:32:18,164 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 05:32:18,164 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:32:18,164 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 05:32:18,164 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 05:32:18,164 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:32:18,164 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 05:32:18,165 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 05:32:18,165 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 05:32:18,165 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 05:32:18,165 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 05:32:18,165 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 05:32:18,165 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 05:32:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 05:32:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 05:32:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 05:32:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 05:32:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 05:32:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 05:32:18,167 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 05:32:18,167 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 05:32:18,167 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 05:32:18,167 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 05:32:18,167 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 05:32:18,167 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 05:32:18,168 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 05:32:18,168 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 05:32:18,168 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 05:32:18,168 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 05:32:18,168 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 05:32:18,168 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 05:32:18,169 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 05:32:18,169 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 05:32:18,169 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 05:32:18,169 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 05:32:18,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 05:32:18,169 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 05:32:18,170 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 05:32:18,170 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 05:32:18,170 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 05:32:18,170 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 05:32:18,170 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 05:32:18,170 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 05:32:18,171 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 05:32:18,171 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 05:32:18,171 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 05:32:18,171 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 05:32:18,171 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 05:32:18,171 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 05:32:18,171 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 05:32:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 05:32:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 05:32:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 05:32:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 05:32:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 05:32:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:32:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:32:18,173 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:32:18,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:32:18,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:32:18,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:32:18,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:32:18,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:32:18,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:32:18,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:32:18,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:32:18,834 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:32:18,834 INFO L295 CfgBuilder]: Removed 9 assume(true) statements. [2020-09-25 05:32:18,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:32:18 BoogieIcfgContainer [2020-09-25 05:32:18,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:32:18,842 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:32:18,842 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:32:18,846 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:32:18,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:32:17" (1/3) ... [2020-09-25 05:32:18,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1276792f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:32:18, skipping insertion in model container [2020-09-25 05:32:18,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:17" (2/3) ... [2020-09-25 05:32:18,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1276792f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:32:18, skipping insertion in model container [2020-09-25 05:32:18,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:32:18" (3/3) ... [2020-09-25 05:32:18,852 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-circular-1.i [2020-09-25 05:32:18,864 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:32:18,874 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-09-25 05:32:18,899 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-25 05:32:18,932 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:32:18,932 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:32:18,932 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:32:18,932 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:32:18,932 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:32:18,932 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:32:18,933 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:32:18,933 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:32:18,958 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states. [2020-09-25 05:32:18,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-25 05:32:18,965 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:18,967 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 05:32:18,968 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:18,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:18,977 INFO L82 PathProgramCache]: Analyzing trace with hash -740897811, now seen corresponding path program 1 times [2020-09-25 05:32:18,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:18,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1830578272] [2020-09-25 05:32:18,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:19,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:19,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:19,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:19,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:19,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 05:32:19,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:32:19,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 778 [2020-09-25 05:32:19,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:19,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:19,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:19,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 05:32:19,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:19,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 05:32:19,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:19,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:19,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:20,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:20,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:20,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:20,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:32:20,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:20,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:20,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:20,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:20,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:20,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:20,016 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 05:32:20,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1830578272] [2020-09-25 05:32:20,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:20,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:32:20,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092294768] [2020-09-25 05:32:20,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:32:20,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:20,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:32:20,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:32:20,051 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 3 states. [2020-09-25 05:32:20,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:20,288 INFO L93 Difference]: Finished difference Result 179 states and 215 transitions. [2020-09-25 05:32:20,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:32:20,290 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-09-25 05:32:20,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:20,304 INFO L225 Difference]: With dead ends: 179 [2020-09-25 05:32:20,304 INFO L226 Difference]: Without dead ends: 77 [2020-09-25 05:32:20,309 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 05:32:20,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-09-25 05:32:20,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-09-25 05:32:20,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-09-25 05:32:20,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2020-09-25 05:32:20,360 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 20 [2020-09-25 05:32:20,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:20,360 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2020-09-25 05:32:20,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:32:20,361 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2020-09-25 05:32:20,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-25 05:32:20,362 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:20,362 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 05:32:20,362 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:32:20,363 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:20,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:20,363 INFO L82 PathProgramCache]: Analyzing trace with hash -2066269805, now seen corresponding path program 1 times [2020-09-25 05:32:20,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:20,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1530474786] [2020-09-25 05:32:20,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:20,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:20,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:20,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:20,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 05:32:20,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:20,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-09-25 05:32:20,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:20,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:20,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 05:32:20,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 05:32:20,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 05:32:20,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:20,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:20,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:20,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:20,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:20,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:20,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:32:20,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:20,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:20,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:20,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:20,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:20,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:20,811 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 05:32:20,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1530474786] [2020-09-25 05:32:20,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:20,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 05:32:20,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11745055] [2020-09-25 05:32:20,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 05:32:20,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:20,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 05:32:20,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:32:20,815 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand 9 states. [2020-09-25 05:32:21,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:21,207 INFO L93 Difference]: Finished difference Result 155 states and 163 transitions. [2020-09-25 05:32:21,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 05:32:21,208 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-09-25 05:32:21,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:21,211 INFO L225 Difference]: With dead ends: 155 [2020-09-25 05:32:21,211 INFO L226 Difference]: Without dead ends: 153 [2020-09-25 05:32:21,212 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2020-09-25 05:32:21,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-09-25 05:32:21,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 85. [2020-09-25 05:32:21,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-25 05:32:21,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 91 transitions. [2020-09-25 05:32:21,227 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 91 transitions. Word has length 22 [2020-09-25 05:32:21,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:21,228 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 91 transitions. [2020-09-25 05:32:21,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 05:32:21,228 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 91 transitions. [2020-09-25 05:32:21,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-09-25 05:32:21,229 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:21,229 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 05:32:21,230 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:32:21,230 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:21,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:21,230 INFO L82 PathProgramCache]: Analyzing trace with hash 807179936, now seen corresponding path program 1 times [2020-09-25 05:32:21,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:21,231 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2046676200] [2020-09-25 05:32:21,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:21,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:21,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:21,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:21,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:21,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 05:32:21,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:32:21,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 678 [2020-09-25 05:32:21,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:21,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:21,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 05:32:21,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 05:32:21,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 05:32:21,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:22,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:22,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:22,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:22,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:22,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:22,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:22,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 05:32:22,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:22,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:22,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:22,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:22,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:22,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:22,091 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 05:32:22,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2046676200] [2020-09-25 05:32:22,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:22,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 05:32:22,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019995200] [2020-09-25 05:32:22,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 05:32:22,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:22,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 05:32:22,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:32:22,103 INFO L87 Difference]: Start difference. First operand 85 states and 91 transitions. Second operand 10 states. [2020-09-25 05:32:22,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:22,545 INFO L93 Difference]: Finished difference Result 88 states and 94 transitions. [2020-09-25 05:32:22,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 05:32:22,546 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2020-09-25 05:32:22,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:22,550 INFO L225 Difference]: With dead ends: 88 [2020-09-25 05:32:22,552 INFO L226 Difference]: Without dead ends: 86 [2020-09-25 05:32:22,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2020-09-25 05:32:22,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-09-25 05:32:22,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 83. [2020-09-25 05:32:22,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-09-25 05:32:22,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 89 transitions. [2020-09-25 05:32:22,574 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 89 transitions. Word has length 31 [2020-09-25 05:32:22,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:22,574 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 89 transitions. [2020-09-25 05:32:22,577 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 05:32:22,578 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 89 transitions. [2020-09-25 05:32:22,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 05:32:22,579 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:22,580 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 05:32:22,581 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:32:22,581 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:22,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:22,582 INFO L82 PathProgramCache]: Analyzing trace with hash -988969633, now seen corresponding path program 1 times [2020-09-25 05:32:22,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:22,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1770759162] [2020-09-25 05:32:22,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:22,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:22,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:23,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:23,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:24,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:24,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 05:32:24,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:32:24,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2027 [2020-09-25 05:32:24,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:24,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:24,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:32:24,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 05:32:24,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 05:32:24,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:24,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:24,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:24,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:24,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:24,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:24,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:24,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:32:24,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:24,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:24,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:24,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:24,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:24,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:24,687 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 05:32:24,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1770759162] [2020-09-25 05:32:24,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:24,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:32:24,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055866092] [2020-09-25 05:32:24,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:32:24,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:24,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:32:24,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:32:24,690 INFO L87 Difference]: Start difference. First operand 83 states and 89 transitions. Second operand 4 states. [2020-09-25 05:32:24,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:24,817 INFO L93 Difference]: Finished difference Result 204 states and 219 transitions. [2020-09-25 05:32:24,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 05:32:24,818 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2020-09-25 05:32:24,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:24,819 INFO L225 Difference]: With dead ends: 204 [2020-09-25 05:32:24,820 INFO L226 Difference]: Without dead ends: 142 [2020-09-25 05:32:24,821 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 05:32:24,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-09-25 05:32:24,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 103. [2020-09-25 05:32:24,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-09-25 05:32:24,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 111 transitions. [2020-09-25 05:32:24,831 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 111 transitions. Word has length 36 [2020-09-25 05:32:24,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:24,831 INFO L479 AbstractCegarLoop]: Abstraction has 103 states and 111 transitions. [2020-09-25 05:32:24,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:32:24,832 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 111 transitions. [2020-09-25 05:32:24,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-25 05:32:24,833 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:24,833 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 05:32:24,834 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:32:24,834 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:24,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:24,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1230029085, now seen corresponding path program 1 times [2020-09-25 05:32:24,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:24,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [145717022] [2020-09-25 05:32:24,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:24,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:24,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:25,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:25,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:25,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:26,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:26,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 05:32:26,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:32:26,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2135 [2020-09-25 05:32:26,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:26,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:26,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 05:32:26,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 05:32:26,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 05:32:26,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:32:27,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:27,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:27,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:27,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:27,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:27,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:27,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:32:27,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:27,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:27,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:27,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:27,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:27,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 05:32:27,241 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 05:32:27,241 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [145717022] [2020-09-25 05:32:27,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:27,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 05:32:27,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856672190] [2020-09-25 05:32:27,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 05:32:27,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:27,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 05:32:27,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-25 05:32:27,244 INFO L87 Difference]: Start difference. First operand 103 states and 111 transitions. Second operand 12 states. [2020-09-25 05:32:27,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:27,904 INFO L93 Difference]: Finished difference Result 196 states and 207 transitions. [2020-09-25 05:32:27,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 05:32:27,905 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 37 [2020-09-25 05:32:27,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:27,907 INFO L225 Difference]: With dead ends: 196 [2020-09-25 05:32:27,907 INFO L226 Difference]: Without dead ends: 166 [2020-09-25 05:32:27,908 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552 [2020-09-25 05:32:27,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-09-25 05:32:27,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 111. [2020-09-25 05:32:27,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-09-25 05:32:27,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 119 transitions. [2020-09-25 05:32:27,918 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 119 transitions. Word has length 37 [2020-09-25 05:32:27,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:27,919 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 119 transitions. [2020-09-25 05:32:27,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 05:32:27,919 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 119 transitions. [2020-09-25 05:32:27,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 05:32:27,921 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:27,921 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 05:32:27,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:32:27,922 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:27,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:27,922 INFO L82 PathProgramCache]: Analyzing trace with hash 626563183, now seen corresponding path program 1 times [2020-09-25 05:32:27,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:27,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [192318222] [2020-09-25 05:32:27,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:27,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:27,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:28,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:29,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:29,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 05:32:29,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:32:29,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1434 [2020-09-25 05:32:29,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:29,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:29,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 05:32:29,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 05:32:29,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 05:32:29,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:29,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:29,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:29,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:29,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:29,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:29,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:29,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:32:29,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:29,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:29,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:29,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:29,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:29,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:29,725 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 05:32:29,725 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [192318222] [2020-09-25 05:32:29,725 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:32:29,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 05:32:29,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853343647] [2020-09-25 05:32:29,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 05:32:29,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:29,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 05:32:29,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-09-25 05:32:29,727 INFO L87 Difference]: Start difference. First operand 111 states and 119 transitions. Second operand 14 states. [2020-09-25 05:32:30,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:30,508 INFO L93 Difference]: Finished difference Result 178 states and 188 transitions. [2020-09-25 05:32:30,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 05:32:30,508 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 40 [2020-09-25 05:32:30,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:30,510 INFO L225 Difference]: With dead ends: 178 [2020-09-25 05:32:30,510 INFO L226 Difference]: Without dead ends: 176 [2020-09-25 05:32:30,512 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 05:32:30,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-09-25 05:32:30,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 109. [2020-09-25 05:32:30,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-09-25 05:32:30,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 117 transitions. [2020-09-25 05:32:30,524 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 117 transitions. Word has length 40 [2020-09-25 05:32:30,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:30,525 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 117 transitions. [2020-09-25 05:32:30,525 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 05:32:30,525 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 117 transitions. [2020-09-25 05:32:30,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-09-25 05:32:30,526 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:30,527 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 05:32:30,527 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 05:32:30,527 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:30,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:30,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1667005657, now seen corresponding path program 1 times [2020-09-25 05:32:30,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:30,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [191212044] [2020-09-25 05:32:30,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:30,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 05:32:30,554 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 05:32:30,554 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 05:32:30,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 05:32:30,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 05:32:30 BoogieIcfgContainer [2020-09-25 05:32:30,591 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 05:32:30,595 INFO L168 Benchmark]: Toolchain (without parser) took 13380.72 ms. Allocated memory was 109.6 MB in the beginning and 293.6 MB in the end (delta: 184.0 MB). Free memory was 73.8 MB in the beginning and 132.9 MB in the end (delta: -59.1 MB). Peak memory consumption was 124.9 MB. Max. memory is 7.1 GB. [2020-09-25 05:32:30,597 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 109.6 MB. Free memory was 92.3 MB in the beginning and 92.2 MB in the end (delta: 105.1 kB). Peak memory consumption was 105.1 kB. Max. memory is 7.1 GB. [2020-09-25 05:32:30,602 INFO L168 Benchmark]: CACSL2BoogieTranslator took 757.77 ms. Allocated memory was 109.6 MB in the beginning and 168.3 MB in the end (delta: 58.7 MB). Free memory was 73.2 MB in the beginning and 142.5 MB in the end (delta: -69.3 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2020-09-25 05:32:30,604 INFO L168 Benchmark]: Boogie Preprocessor took 85.99 ms. Allocated memory is still 168.3 MB. Free memory was 142.5 MB in the beginning and 139.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-09-25 05:32:30,604 INFO L168 Benchmark]: RCFGBuilder took 774.74 ms. Allocated memory was 168.3 MB in the beginning and 184.5 MB in the end (delta: 16.3 MB). Free memory was 139.5 MB in the beginning and 163.6 MB in the end (delta: -24.1 MB). Peak memory consumption was 54.1 MB. Max. memory is 7.1 GB. [2020-09-25 05:32:30,605 INFO L168 Benchmark]: TraceAbstraction took 11749.37 ms. Allocated memory was 184.5 MB in the beginning and 293.6 MB in the end (delta: 109.1 MB). Free memory was 162.8 MB in the beginning and 132.9 MB in the end (delta: 29.9 MB). Peak memory consumption was 138.9 MB. Max. memory is 7.1 GB. [2020-09-25 05:32:30,619 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 109.6 MB. Free memory was 92.3 MB in the beginning and 92.2 MB in the end (delta: 105.1 kB). Peak memory consumption was 105.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 757.77 ms. Allocated memory was 109.6 MB in the beginning and 168.3 MB in the end (delta: 58.7 MB). Free memory was 73.2 MB in the beginning and 142.5 MB in the end (delta: -69.3 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.99 ms. Allocated memory is still 168.3 MB. Free memory was 142.5 MB in the beginning and 139.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 774.74 ms. Allocated memory was 168.3 MB in the beginning and 184.5 MB in the end (delta: 16.3 MB). Free memory was 139.5 MB in the beginning and 163.6 MB in the end (delta: -24.1 MB). Peak memory consumption was 54.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11749.37 ms. Allocated memory was 184.5 MB in the beginning and 293.6 MB in the end (delta: 109.1 MB). Free memory was 162.8 MB in the beginning and 132.9 MB in the end (delta: 29.9 MB). Peak memory consumption was 138.9 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: 11.6s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 470 SDtfs, 1164 SDslu, 1519 SDs, 0 SdLazy, 1111 SolverSat, 113 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 108 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 1.5s 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, 232 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 8.3s InterpolantComputationTime, 227 NumberOfCodeBlocks, 227 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 40992 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...