/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --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=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label43.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 15:38:06,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 15:38:06,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 15:38:06,910 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 15:38:06,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 15:38:06,912 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 15:38:06,914 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 15:38:06,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 15:38:06,919 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 15:38:06,921 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 15:38:06,922 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 15:38:06,924 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 15:38:06,925 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 15:38:06,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 15:38:06,927 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 15:38:06,929 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 15:38:06,930 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 15:38:06,931 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 15:38:06,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 15:38:06,936 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 15:38:06,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 15:38:06,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 15:38:06,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 15:38:06,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 15:38:06,963 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 15:38:06,967 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 15:38:06,968 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 15:38:06,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 15:38:06,970 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 15:38:06,976 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 15:38:06,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 15:38:06,977 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 15:38:06,978 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 15:38:06,979 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 15:38:06,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 15:38:06,981 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 15:38:06,982 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 15:38:06,982 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 15:38:06,983 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 15:38:06,984 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 15:38:06,985 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 15:38:06,986 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 [2020-10-27 15:38:07,014 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 15:38:07,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 15:38:07,016 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 15:38:07,016 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 15:38:07,017 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 15:38:07,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 15:38:07,017 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 15:38:07,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 15:38:07,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 15:38:07,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 15:38:07,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 15:38:07,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 15:38:07,019 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 15:38:07,019 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 15:38:07,020 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 15:38:07,020 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 15:38:07,020 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 15:38:07,020 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 15:38:07,021 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 15:38:07,021 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 15:38:07,021 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 15:38:07,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 15:38:07,022 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 15:38:07,022 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 15:38:07,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 15:38:07,023 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 15:38:07,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 15:38:07,023 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 15:38:07,024 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 15:38:07,024 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 15:38:07,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 15:38:07,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 15:38:07,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 15:38:07,427 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 15:38:07,428 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 15:38:07,429 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label43.c [2020-10-27 15:38:07,514 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0c6287056/01c4b2bcae774a238ecc012c6407369a/FLAG4166367a2 [2020-10-27 15:38:08,395 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 15:38:08,396 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label43.c [2020-10-27 15:38:08,420 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0c6287056/01c4b2bcae774a238ecc012c6407369a/FLAG4166367a2 [2020-10-27 15:38:08,639 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0c6287056/01c4b2bcae774a238ecc012c6407369a [2020-10-27 15:38:08,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 15:38:08,658 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 15:38:08,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 15:38:08,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 15:38:08,665 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 15:38:08,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:38:08" (1/1) ... [2020-10-27 15:38:08,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@93a579f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:08, skipping insertion in model container [2020-10-27 15:38:08,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:38:08" (1/1) ... [2020-10-27 15:38:08,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 15:38:08,755 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 15:38:09,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:38:09,243 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 15:38:09,499 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:38:09,521 INFO L208 MainTranslator]: Completed translation [2020-10-27 15:38:09,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:09 WrapperNode [2020-10-27 15:38:09,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 15:38:09,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 15:38:09,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 15:38:09,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 15:38:09,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:09" (1/1) ... [2020-10-27 15:38:09,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:09" (1/1) ... [2020-10-27 15:38:09,565 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:09" (1/1) ... [2020-10-27 15:38:09,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:09" (1/1) ... [2020-10-27 15:38:09,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:09" (1/1) ... [2020-10-27 15:38:09,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:09" (1/1) ... [2020-10-27 15:38:09,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:09" (1/1) ... [2020-10-27 15:38:09,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 15:38:09,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 15:38:09,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 15:38:09,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 15:38:09,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:09" (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 [2020-10-27 15:38:09,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 15:38:09,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 15:38:09,747 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 15:38:09,747 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-27 15:38:09,747 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 15:38:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-27 15:38:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 15:38:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 15:38:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 15:38:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 15:38:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 15:38:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 15:38:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 15:38:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 15:38:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 15:38:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 15:38:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 15:38:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 15:38:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 15:38:11,008 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 15:38:11,008 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 15:38:11,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:38:11 BoogieIcfgContainer [2020-10-27 15:38:11,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 15:38:11,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 15:38:11,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 15:38:11,016 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 15:38:11,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:38:08" (1/3) ... [2020-10-27 15:38:11,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726e6c00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:38:11, skipping insertion in model container [2020-10-27 15:38:11,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:09" (2/3) ... [2020-10-27 15:38:11,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726e6c00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:38:11, skipping insertion in model container [2020-10-27 15:38:11,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:38:11" (3/3) ... [2020-10-27 15:38:11,020 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label43.c [2020-10-27 15:38:11,033 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 15:38:11,042 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 15:38:11,057 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 15:38:11,087 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 15:38:11,087 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 15:38:11,087 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 15:38:11,087 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 15:38:11,087 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 15:38:11,088 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 15:38:11,088 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 15:38:11,088 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 15:38:11,111 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-10-27 15:38:11,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-27 15:38:11,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:38:11,125 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:38:11,125 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:38:11,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:38:11,132 INFO L82 PathProgramCache]: Analyzing trace with hash -969779467, now seen corresponding path program 1 times [2020-10-27 15:38:11,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:38:11,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [575961613] [2020-10-27 15:38:11,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:38:11,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:11,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:11,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:13,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:13,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-27 15:38:13,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:38:13,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1683 [2020-10-27 15:38:13,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:13,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 15:38:13,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 15:38:13,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-27 15:38:13,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 15:38:13,362 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-27 15:38:13,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:38:13,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:13,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:13,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:13,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:38:13,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:13,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-27 15:38:13,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:13,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:38:13,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:13,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 15:38:13,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:13,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:38:13,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [575961613] [2020-10-27 15:38:13,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:38:13,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-27 15:38:13,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022659913] [2020-10-27 15:38:13,508 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:38:13,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:38:13,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:38:13,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:38:13,533 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 4 states. [2020-10-27 15:38:15,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:38:15,869 INFO L93 Difference]: Finished difference Result 636 states and 1085 transitions. [2020-10-27 15:38:15,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:38:15,871 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 92 [2020-10-27 15:38:15,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:38:15,887 INFO L225 Difference]: With dead ends: 636 [2020-10-27 15:38:15,888 INFO L226 Difference]: Without dead ends: 332 [2020-10-27 15:38:15,895 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:38:15,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-10-27 15:38:15,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 326. [2020-10-27 15:38:15,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2020-10-27 15:38:15,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 428 transitions. [2020-10-27 15:38:15,986 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 428 transitions. Word has length 92 [2020-10-27 15:38:15,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:38:15,987 INFO L481 AbstractCegarLoop]: Abstraction has 326 states and 428 transitions. [2020-10-27 15:38:15,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:38:15,987 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 428 transitions. [2020-10-27 15:38:15,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-27 15:38:15,993 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:38:15,994 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:38:15,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 15:38:15,994 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:38:15,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:38:15,995 INFO L82 PathProgramCache]: Analyzing trace with hash 236167828, now seen corresponding path program 1 times [2020-10-27 15:38:15,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:38:15,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1297823408] [2020-10-27 15:38:15,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:38:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:16,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:16,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:16,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:17,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:17,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 15:38:17,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:38:17,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1845 [2020-10-27 15:38:17,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:17,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 15:38:17,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 15:38:17,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 15:38:17,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:18,429 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 38 [2020-10-27 15:38:18,572 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 34 [2020-10-27 15:38:18,724 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2020-10-27 15:38:19,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:38:19,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:19,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:19,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:19,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:38:19,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:19,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 15:38:19,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:19,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:38:19,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:19,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:38:19,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:19,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:38:19,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:19,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:19,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:19,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 15:38:19,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:19,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 15:38:19,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:19,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:38:19,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:19,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 15:38:19,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:19,216 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:38:19,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1297823408] [2020-10-27 15:38:19,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:38:19,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 15:38:19,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19775336] [2020-10-27 15:38:19,218 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 15:38:19,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:38:19,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 15:38:19,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-27 15:38:19,220 INFO L87 Difference]: Start difference. First operand 326 states and 428 transitions. Second operand 12 states. [2020-10-27 15:38:19,486 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 15:38:19,708 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-27 15:38:20,096 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 15:38:20,981 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 15:38:21,352 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 15:38:21,862 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 15:38:22,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:38:22,513 INFO L93 Difference]: Finished difference Result 736 states and 1007 transitions. [2020-10-27 15:38:22,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-27 15:38:22,514 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 101 [2020-10-27 15:38:22,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:38:22,518 INFO L225 Difference]: With dead ends: 736 [2020-10-27 15:38:22,519 INFO L226 Difference]: Without dead ends: 330 [2020-10-27 15:38:22,526 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2020-10-27 15:38:22,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-10-27 15:38:22,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 326. [2020-10-27 15:38:22,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2020-10-27 15:38:22,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 413 transitions. [2020-10-27 15:38:22,572 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 413 transitions. Word has length 101 [2020-10-27 15:38:22,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:38:22,572 INFO L481 AbstractCegarLoop]: Abstraction has 326 states and 413 transitions. [2020-10-27 15:38:22,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 15:38:22,572 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 413 transitions. [2020-10-27 15:38:22,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-27 15:38:22,576 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:38:22,576 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:38:22,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 15:38:22,577 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:38:22,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:38:22,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1304821812, now seen corresponding path program 1 times [2020-10-27 15:38:22,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:38:22,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1130079804] [2020-10-27 15:38:22,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:38:22,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:22,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:22,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:23,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:23,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:23,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-27 15:38:23,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:38:23,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1364 [2020-10-27 15:38:23,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:23,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:38:23,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-27 15:38:23,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-27 15:38:23,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:24,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:38:24,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:24,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:24,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:24,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:38:24,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:24,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 15:38:24,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:24,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:38:24,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:24,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:38:24,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:24,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:38:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:24,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:24,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:24,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 15:38:24,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:24,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 15:38:24,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:24,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:38:24,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:24,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 15:38:24,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:24,242 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:38:24,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1130079804] [2020-10-27 15:38:24,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:38:24,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-27 15:38:24,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974908999] [2020-10-27 15:38:24,246 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 15:38:24,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:38:24,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 15:38:24,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:38:24,248 INFO L87 Difference]: Start difference. First operand 326 states and 413 transitions. Second operand 6 states. [2020-10-27 15:38:26,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:38:26,682 INFO L93 Difference]: Finished difference Result 948 states and 1273 transitions. [2020-10-27 15:38:26,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 15:38:26,686 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 105 [2020-10-27 15:38:26,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:38:26,692 INFO L225 Difference]: With dead ends: 948 [2020-10-27 15:38:26,692 INFO L226 Difference]: Without dead ends: 628 [2020-10-27 15:38:26,694 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-27 15:38:26,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2020-10-27 15:38:26,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 621. [2020-10-27 15:38:26,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 621 states. [2020-10-27 15:38:26,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 782 transitions. [2020-10-27 15:38:26,732 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 782 transitions. Word has length 105 [2020-10-27 15:38:26,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:38:26,733 INFO L481 AbstractCegarLoop]: Abstraction has 621 states and 782 transitions. [2020-10-27 15:38:26,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 15:38:26,733 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 782 transitions. [2020-10-27 15:38:26,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-27 15:38:26,740 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:38:26,740 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 1, 1] [2020-10-27 15:38:26,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 15:38:26,741 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:38:26,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:38:26,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1868932814, now seen corresponding path program 1 times [2020-10-27 15:38:26,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:38:26,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [694237746] [2020-10-27 15:38:26,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:38:26,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:26,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:26,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:27,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:28,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:28,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-27 15:38:28,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:38:28,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1745 [2020-10-27 15:38:28,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:28,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:38:28,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-27 15:38:28,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 15:38:28,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:28,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:38:28,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:28,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:28,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:28,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:38:28,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:28,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:38:28,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:28,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:38:28,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:28,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:38:28,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:28,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:38:28,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:28,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:28,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:28,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 15:38:28,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:28,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 15:38:28,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:28,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:38:28,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:28,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 15:38:28,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:28,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 15:38:28,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:28,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:28,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:28,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:38:28,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:28,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 15:38:28,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:28,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:38:28,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 15:38:28,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 15:38:28,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:28,807 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-27 15:38:28,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [694237746] [2020-10-27 15:38:28,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:38:28,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 15:38:28,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856148636] [2020-10-27 15:38:28,811 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 15:38:28,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:38:28,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 15:38:28,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 15:38:28,814 INFO L87 Difference]: Start difference. First operand 621 states and 782 transitions. Second operand 7 states. [2020-10-27 15:38:29,135 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 15:38:31,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:38:31,730 INFO L93 Difference]: Finished difference Result 2459 states and 3350 transitions. [2020-10-27 15:38:31,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 15:38:31,730 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 121 [2020-10-27 15:38:31,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:38:31,745 INFO L225 Difference]: With dead ends: 2459 [2020-10-27 15:38:31,745 INFO L226 Difference]: Without dead ends: 1844 [2020-10-27 15:38:31,749 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-27 15:38:31,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2020-10-27 15:38:31,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1832. [2020-10-27 15:38:31,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1832 states. [2020-10-27 15:38:31,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1832 states to 1832 states and 2317 transitions. [2020-10-27 15:38:31,847 INFO L78 Accepts]: Start accepts. Automaton has 1832 states and 2317 transitions. Word has length 121 [2020-10-27 15:38:31,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:38:31,848 INFO L481 AbstractCegarLoop]: Abstraction has 1832 states and 2317 transitions. [2020-10-27 15:38:31,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 15:38:31,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1832 states and 2317 transitions. [2020-10-27 15:38:31,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-27 15:38:31,858 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:38:31,859 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2020-10-27 15:38:31,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 15:38:31,859 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:38:31,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:38:31,860 INFO L82 PathProgramCache]: Analyzing trace with hash -1587844818, now seen corresponding path program 1 times [2020-10-27 15:38:31,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:38:31,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1852864280] [2020-10-27 15:38:31,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:38:31,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:31,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:32,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:32,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:33,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:33,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-27 15:38:33,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:38:33,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1601 [2020-10-27 15:38:33,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:33,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 15:38:33,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-27 15:38:33,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-27 15:38:33,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:34,133 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2020-10-27 15:38:34,340 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 46 [2020-10-27 15:38:34,583 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 47 [2020-10-27 15:38:34,832 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 43 [2020-10-27 15:38:35,031 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 39 [2020-10-27 15:38:35,223 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 34 [2020-10-27 15:38:35,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:38:35,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:35,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:35,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:35,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:38:35,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:35,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 15:38:35,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:35,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:38:35,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:35,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:38:35,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:35,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:38:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:35,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:35,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:35,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-27 15:38:35,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:35,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 15:38:35,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:35,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:38:35,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:35,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 15:38:35,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:35,707 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:38:35,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1852864280] [2020-10-27 15:38:35,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:38:35,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 15:38:35,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178611559] [2020-10-27 15:38:35,710 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 15:38:35,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:38:35,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 15:38:35,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-27 15:38:35,711 INFO L87 Difference]: Start difference. First operand 1832 states and 2317 transitions. Second operand 12 states. [2020-10-27 15:38:36,218 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 15:38:36,452 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-27 15:38:36,913 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 134 [2020-10-27 15:38:37,446 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 131 [2020-10-27 15:38:38,354 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 128 [2020-10-27 15:38:39,281 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 123 [2020-10-27 15:38:39,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:38:39,691 INFO L93 Difference]: Finished difference Result 3824 states and 4930 transitions. [2020-10-27 15:38:39,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 15:38:39,695 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 126 [2020-10-27 15:38:39,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:38:39,709 INFO L225 Difference]: With dead ends: 3824 [2020-10-27 15:38:39,709 INFO L226 Difference]: Without dead ends: 1982 [2020-10-27 15:38:39,717 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2020-10-27 15:38:39,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1982 states. [2020-10-27 15:38:39,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1982 to 1912. [2020-10-27 15:38:39,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1912 states. [2020-10-27 15:38:39,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1912 states to 1912 states and 2413 transitions. [2020-10-27 15:38:39,800 INFO L78 Accepts]: Start accepts. Automaton has 1912 states and 2413 transitions. Word has length 126 [2020-10-27 15:38:39,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:38:39,801 INFO L481 AbstractCegarLoop]: Abstraction has 1912 states and 2413 transitions. [2020-10-27 15:38:39,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 15:38:39,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1912 states and 2413 transitions. [2020-10-27 15:38:39,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-27 15:38:39,809 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:38:39,809 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2020-10-27 15:38:39,809 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 15:38:39,809 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:38:39,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:38:39,810 INFO L82 PathProgramCache]: Analyzing trace with hash 303556725, now seen corresponding path program 1 times [2020-10-27 15:38:39,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:38:39,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [654684103] [2020-10-27 15:38:39,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:38:39,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:39,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:39,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:40,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:40,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 15:38:40,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:38:40,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1076 [2020-10-27 15:38:40,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:40,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:38:40,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-27 15:38:40,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 15:38:40,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:41,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:38:41,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:41,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:41,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:41,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:38:41,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:41,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 15:38:41,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:41,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:38:41,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:41,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:38:41,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:41,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:38:41,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:41,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:41,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:41,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-27 15:38:41,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:41,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 15:38:41,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:41,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:38:41,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:41,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 15:38:41,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:38:41,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 15:38:41,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:41,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:41,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:41,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:38:41,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:41,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 15:38:41,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:41,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:38:41,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 15:38:41,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 15:38:41,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:38:41,175 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-27 15:38:41,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [654684103] [2020-10-27 15:38:41,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:38:41,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 15:38:41,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829396857] [2020-10-27 15:38:41,178 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 15:38:41,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:38:41,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 15:38:41,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 15:38:41,182 INFO L87 Difference]: Start difference. First operand 1912 states and 2413 transitions. Second operand 7 states. [2020-10-27 15:38:43,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:38:43,983 INFO L93 Difference]: Finished difference Result 7239 states and 9880 transitions. [2020-10-27 15:38:43,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 15:38:43,984 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 131 [2020-10-27 15:38:43,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:38:44,018 INFO L225 Difference]: With dead ends: 7239 [2020-10-27 15:38:44,019 INFO L226 Difference]: Without dead ends: 4518 [2020-10-27 15:38:44,034 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-27 15:38:44,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4518 states. [2020-10-27 15:38:44,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4518 to 4396. [2020-10-27 15:38:44,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4396 states. [2020-10-27 15:38:44,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4396 states to 4396 states and 5451 transitions. [2020-10-27 15:38:44,238 INFO L78 Accepts]: Start accepts. Automaton has 4396 states and 5451 transitions. Word has length 131 [2020-10-27 15:38:44,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:38:44,238 INFO L481 AbstractCegarLoop]: Abstraction has 4396 states and 5451 transitions. [2020-10-27 15:38:44,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 15:38:44,238 INFO L276 IsEmpty]: Start isEmpty. Operand 4396 states and 5451 transitions. [2020-10-27 15:38:44,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-27 15:38:44,250 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:38:44,251 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2020-10-27 15:38:44,251 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 15:38:44,251 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:38:44,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:38:44,252 INFO L82 PathProgramCache]: Analyzing trace with hash -1911016350, now seen corresponding path program 1 times [2020-10-27 15:38:44,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:38:44,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1139198380] [2020-10-27 15:38:44,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:38:44,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 15:38:44,288 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 15:38:44,288 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 15:38:44,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 15:38:44,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:38:44 BoogieIcfgContainer [2020-10-27 15:38:44,324 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 15:38:44,326 INFO L168 Benchmark]: Toolchain (without parser) took 35677.78 ms. Allocated memory was 151.0 MB in the beginning and 615.5 MB in the end (delta: 464.5 MB). Free memory was 124.9 MB in the beginning and 531.9 MB in the end (delta: -407.0 MB). Peak memory consumption was 57.7 MB. Max. memory is 8.0 GB. [2020-10-27 15:38:44,326 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 124.2 MB in the end (delta: 102.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 15:38:44,330 INFO L168 Benchmark]: CACSL2BoogieTranslator took 862.31 ms. Allocated memory is still 151.0 MB. Free memory was 124.1 MB in the beginning and 129.8 MB in the end (delta: -5.7 MB). Peak memory consumption was 28.8 MB. Max. memory is 8.0 GB. [2020-10-27 15:38:44,331 INFO L168 Benchmark]: Boogie Preprocessor took 135.65 ms. Allocated memory is still 151.0 MB. Free memory was 129.8 MB in the beginning and 125.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-27 15:38:44,332 INFO L168 Benchmark]: RCFGBuilder took 1349.69 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 103.1 MB in the end (delta: 21.5 MB). Peak memory consumption was 81.8 MB. Max. memory is 8.0 GB. [2020-10-27 15:38:44,334 INFO L168 Benchmark]: TraceAbstraction took 33311.44 ms. Allocated memory was 151.0 MB in the beginning and 615.5 MB in the end (delta: 464.5 MB). Free memory was 103.1 MB in the beginning and 531.9 MB in the end (delta: -428.9 MB). Peak memory consumption was 35.1 MB. Max. memory is 8.0 GB. [2020-10-27 15:38:44,338 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 124.2 MB in the end (delta: 102.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 862.31 ms. Allocated memory is still 151.0 MB. Free memory was 124.1 MB in the beginning and 129.8 MB in the end (delta: -5.7 MB). Peak memory consumption was 28.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 135.65 ms. Allocated memory is still 151.0 MB. Free memory was 129.8 MB in the beginning and 125.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1349.69 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 103.1 MB in the end (delta: 21.5 MB). Peak memory consumption was 81.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 33311.44 ms. Allocated memory was 151.0 MB in the beginning and 615.5 MB in the end (delta: 464.5 MB). Free memory was 103.1 MB in the beginning and 531.9 MB in the end (delta: -428.9 MB). Peak memory consumption was 35.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L9] int a= 1; [L10] int e= 5; [L11] int d= 4; [L12] int f= 6; [L13] int c= 3; [L16] int u = 21; [L17] int v = 22; [L18] int w = 23; [L19] int x = 24; [L20] int y = 25; [L21] int z = 26; [L24] int a25 = 0; [L25] int a11 = 0; [L26] int a28 = 7; [L27] int a19 = 1; [L28] int a21 = 1; [L29] int a17 = 8; [L605] int output = -1; [L608] COND TRUE 1 [L611] int input; [L612] input = __VERIFIER_nondet_int() [L613] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L616] CALL, EXPR calculate_output(input) [L32] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L37] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L40] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L44] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L49] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L52] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L56] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L61] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L67] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L71] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L76] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L84] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L93] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L97] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L101] COND FALSE !(((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1))) [L108] COND FALSE !((((a11==1)&&((((((a25==1)&&(a28==8))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7))))&&(input==6))&&(a19==1))&&(a17==9)))&&(a21==1))) [L115] COND FALSE !(((a17==8)&&((a21==1)&&(!(a11==1)&&(!(a19==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))))))) [L121] COND FALSE !((((((a21==1)&&((a28==10)&&((input==1)&&(a25==1))))&&!(a11==1))&&(a17==8))&&!(a19==1))) [L125] COND FALSE !((!(a11==1)&&(!(a19==1)&&(((a17==8)&&((input==6)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a28==8)&&(a25==1)))))&&(a21==1))))) [L132] COND FALSE !(((((a17==8)&&(!(a19==1)&&(((input==6)&&(a21==1))&&!(a25==1))))&&!(a11==1))&&(a28==9))) [L136] COND FALSE !((!(a11==1)&&((!(a25==1)&&(((a21==1)&&((input==1)&&(a19==1)))&&(a17==8)))&&(a28==11)))) [L141] COND FALSE !((((a11==1)&&(((a19==1)&&((a21==1)&&(((a25==1)||!(a25==1))&&(input==4))))&&(a17==9)))&&(a28==9))) [L145] COND FALSE !(((!(a11==1)&&((a28==9)&&(((!(a19==1)&&(input==5))&&!(a25==1))&&(a21==1))))&&(a17==8))) [L150] COND FALSE !(((!(a11==1)&&(((a17==8)&&(((((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))||((a28==8)&&(a25==1)))&&(input==3)))&&!(a19==1)))&&(a21==1))) [L156] COND FALSE !(((a21==1)&&(!(a19==1)&&((((input==5)&&(((a28==8)&&(a25==1))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7)))))&&!(a11==1))&&(a17==8))))) [L161] COND FALSE !((((a17==9)&&(((a28==8)&&(((input==1)&&(a19==1))&&!(a25==1)))&&(a11==1)))&&(a21==1))) [L167] COND TRUE (((a21==1)&&((a19==1)&&((a28==7)&&((a17==8)&&(!(a25==1)&&(input==3))))))&&!(a11==1)) [L168] a25 = 1 [L169] a28 = 9 [L170] return 26; [L616] RET, EXPR calculate_output(input) [L616] output = calculate_output(input) [L608] COND TRUE 1 [L611] int input; [L612] input = __VERIFIER_nondet_int() [L613] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L616] CALL, EXPR calculate_output(input) [L32] COND TRUE (((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8)) [L33] a28 = 9 [L34] a11 = 1 [L35] a25 = 1 [L36] return -1; [L616] RET, EXPR calculate_output(input) [L616] output = calculate_output(input) [L608] COND TRUE 1 [L611] int input; [L612] input = __VERIFIER_nondet_int() [L613] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L616] CALL calculate_output(input) [L32] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L37] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L40] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L44] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L49] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L52] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L56] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L61] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L67] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L71] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L76] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L84] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L93] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L97] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L101] COND FALSE !(((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1))) [L108] COND FALSE !((((a11==1)&&((((((a25==1)&&(a28==8))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7))))&&(input==6))&&(a19==1))&&(a17==9)))&&(a21==1))) [L115] COND FALSE !(((a17==8)&&((a21==1)&&(!(a11==1)&&(!(a19==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))))))) [L121] COND FALSE !((((((a21==1)&&((a28==10)&&((input==1)&&(a25==1))))&&!(a11==1))&&(a17==8))&&!(a19==1))) [L125] COND FALSE !((!(a11==1)&&(!(a19==1)&&(((a17==8)&&((input==6)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a28==8)&&(a25==1)))))&&(a21==1))))) [L132] COND FALSE !(((((a17==8)&&(!(a19==1)&&(((input==6)&&(a21==1))&&!(a25==1))))&&!(a11==1))&&(a28==9))) [L136] COND FALSE !((!(a11==1)&&((!(a25==1)&&(((a21==1)&&((input==1)&&(a19==1)))&&(a17==8)))&&(a28==11)))) [L141] COND FALSE !((((a11==1)&&(((a19==1)&&((a21==1)&&(((a25==1)||!(a25==1))&&(input==4))))&&(a17==9)))&&(a28==9))) [L145] COND FALSE !(((!(a11==1)&&((a28==9)&&(((!(a19==1)&&(input==5))&&!(a25==1))&&(a21==1))))&&(a17==8))) [L150] COND FALSE !(((!(a11==1)&&(((a17==8)&&(((((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))||((a28==8)&&(a25==1)))&&(input==3)))&&!(a19==1)))&&(a21==1))) [L156] COND FALSE !(((a21==1)&&(!(a19==1)&&((((input==5)&&(((a28==8)&&(a25==1))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7)))))&&!(a11==1))&&(a17==8))))) [L161] COND FALSE !((((a17==9)&&(((a28==8)&&(((input==1)&&(a19==1))&&!(a25==1)))&&(a11==1)))&&(a21==1))) [L167] COND FALSE !((((a21==1)&&((a19==1)&&((a28==7)&&((a17==8)&&(!(a25==1)&&(input==3))))))&&!(a11==1))) [L171] COND FALSE !(((a28==11)&&(((a17==8)&&((((input==6)&&(a21==1))&&(a19==1))&&!(a25==1)))&&!(a11==1)))) [L177] COND FALSE !(((!(a11==1)&&(((a17==8)&&((a21==1)&&((input==3)&&(a28==8))))&&(a19==1)))&&(a25==1))) [L181] COND FALSE !((((a21==1)&&(((a19==1)&&(((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))&&(input==4)))&&(a11==1)))&&(a17==9))) [L187] COND FALSE !((((!(a11==1)&&((a17==8)&&(((input==4)&&(a19==1))&&(a28==8))))&&(a21==1))&&(a25==1))) [L189] COND FALSE !(((a19==1)&&((((((input==4)&&(a21==1))&&(a28==9))&&!(a25==1))&&!(a11==1))&&(a17==8)))) [L191] COND FALSE !(((a17==8)&&((((((input==1)&&(a21==1))&&!(a11==1))&&(a19==1))&&!(a25==1))&&(a28==9)))) [L193] COND FALSE !((((((((input==4)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a21==1))&&(a17==8))&&(a28==10))&&(a19==1))) [L196] COND FALSE !(((!(a25==1)&&((a11==1)&&((a28==8)&&(((a17==9)&&(input==4))&&(a19==1)))))&&(a21==1))) [L200] COND FALSE !((!(a19==1)&&((a17==8)&&((a28==10)&&(((a25==1)&&(!(a11==1)&&(input==5)))&&(a21==1)))))) [L204] COND FALSE !((((((a21==1)&&((input==1)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))))&&(a17==8))&&!(a11==1))&&(a19==1))) [L214] COND FALSE !(((a21==1)&&((((a19==1)&&((a25==1)&&((a28==11)&&(input==6))))&&!(a11==1))&&(a17==8)))) [L217] COND FALSE !((!(a11==1)&&((a19==1)&&((a28==10)&&(((((a25==1)||!(a25==1))&&(input==5))&&(a17==8))&&(a21==1)))))) [L220] COND FALSE !((((((a17==9)&&((((a25==1)||!(a25==1))&&(input==6))&&(a11==1)))&&(a19==1))&&(a21==1))&&(a28==9))) [L225] COND FALSE !((((a17==8)&&(((((input==6)&&(a25==1))&&!(a19==1))&&!(a11==1))&&(a28==10)))&&(a21==1))) [L227] COND FALSE !(((!(a19==1)&&((a17==8)&&(!(a11==1)&&((input==1)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))))&&(a21==1))) [L234] COND FALSE !((((((((input==1)&&(a21==1))&&(a28==9))&&!(a19==1))&&!(a25==1))&&(a17==8))&&!(a11==1))) [L236] COND FALSE !(((a17==8)&&(((!(a11==1)&&((!(a25==1)&&(input==4))&&(a19==1)))&&(a28==7))&&(a21==1)))) [L239] COND FALSE !((!(a11==1)&&(((a17==8)&&((((!(a25==1)&&(a28==11))||((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1))))&&(input==3))&&(a21==1)))&&!(a19==1)))) [L250] COND FALSE !(((((!(a11==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==5)))&&(a21==1))&&!(a19==1))&&(a17==8))) [L255] COND FALSE !((((a17==9)&&(((((input==1)&&((a25==1)||!(a25==1)))&&(a11==1))&&(a21==1))&&(a19==1)))&&(a28==9))) [L261] COND FALSE !((!(a11==1)&&((a19==1)&&(((((a28==9)&&(input==6))&&(a21==1))&&(a17==8))&&!(a25==1))))) [L263] COND FALSE !(((a17==9)&&((a21==1)&&((a11==1)&&(((input==3)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a19==1)))))) [L278] COND FALSE !(((a28==7)&&((a17==8)&&(!(a25==1)&&((a21==1)&&((a19==1)&&((input==5)&&!(a11==1)))))))) [L282] COND FALSE !(((a28==8)&&((a21==1)&&((!(a11==1)&&(((input==1)&&(a17==8))&&(a19==1)))&&(a25==1))))) [L285] COND FALSE !((((((a17==8)&&(((input==6)&&((a25==1)||!(a25==1)))&&(a21==1)))&&(a28==10))&&!(a11==1))&&(a19==1))) [L288] COND FALSE !(((!(a11==1)&&((!(a19==1)&&(((!(a25==1)&&(a28==11))||(((a28==10)&&!(a25==1))||((a25==1)&&(a28==11))))&&(input==5)))&&(a17==8)))&&(a21==1))) [L293] COND FALSE !(((a17==8)&&(((a21==1)&&(!(a11==1)&&((a25==1)&&((a28==8)&&(input==6)))))&&(a19==1)))) [L295] COND FALSE !((((a19==1)&&((a17==8)&&(((!(a25==1)&&(input==5))&&(a21==1))&&!(a11==1))))&&(a28==11))) [L299] COND FALSE !(((a11==1)&&(((a17==9)&&((a28==9)&&((a19==1)&&(((a25==1)||!(a25==1))&&(input==5)))))&&(a21==1)))) [L311] COND FALSE !((((((((input==3)&&(a19==1))&&(a21==1))&&(a17==8))&&!(a25==1))&&(a28==11))&&!(a11==1))) [L316] COND FALSE !(((a19==1)&&((a21==1)&&((((input==5)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a11==1))&&(a17==9))))) [L330] COND FALSE !((((a19==1)&&(((!(a11==1)&&(((a25==1)||!(a25==1))&&(input==3)))&&(a28==10))&&(a21==1)))&&(a17==8))) [L333] COND FALSE !(((!(a11==1)&&(((((input==4)&&(a17==8))&&!(a25==1))&&(a21==1))&&(a28==11)))&&(a19==1))) [L339] COND FALSE !((((!(a19==1)&&(((input==4)&&(((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1)))||(!(a25==1)&&(a28==11))))&&(a21==1)))&&(a17==8))&&!(a11==1))) [L351] COND FALSE !((!(a11==1)&&(((a17==8)&&((((a25==1)&&(input==4))&&(a19==1))&&(a28==11)))&&(a21==1)))) [L356] COND FALSE !((((((a21==1)&&((((a28==8)&&!(a25==1))||((a28==9)&&(a25==1)))&&(input==6)))&&!(a11==1))&&!(a19==1))&&(a17==8))) [L363] COND FALSE !(((a19==1)&&((((a21==1)&&((!(a25==1)&&(input==3))&&(a17==9)))&&(a28==8))&&(a11==1)))) [L370] COND FALSE !(((a17==8)&&(((a21==1)&&(((input==5)&&((!(a25==1)&&(a28==8))||((a28==9)&&(a25==1))))&&(a19==1)))&&!(a11==1)))) [L377] COND FALSE !(((a19==1)&&(((((a17==8)&&((input==5)&&!(a11==1)))&&(a21==1))&&(a25==1))&&(a28==8)))) [L380] COND FALSE !((((!(a11==1)&&((((a21==1)&&(input==4))&&(a28==10))&&(a17==8)))&&!(a19==1))&&(a25==1))) [L382] COND FALSE !(((a28==8)&&(((a19==1)&&((a11==1)&&(!(a25==1)&&((a17==9)&&(input==6)))))&&(a21==1)))) [L391] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==6)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))&&(a17==8))&&!(a19==1)))) [L396] COND FALSE !((((((!(a25==1)&&((a19==1)&&(input==3)))&&(a28==9))&&(a21==1))&&(a17==8))&&!(a11==1))) [L400] COND FALSE !((((a17==8)&&((((input==4)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9))))&&(a21==1))&&!(a19==1)))&&!(a11==1))) [L404] COND FALSE !((((!(a11==1)&&((((a19==1)&&(input==5))&&(a17==8))&&(a21==1)))&&(a28==9))&&!(a25==1))) [L406] COND FALSE !((((a11==1)&&((a19==1)&&((a21==1)&&(((a17==9)&&(input==5))&&!(a25==1)))))&&(a28==8))) [L409] COND FALSE !((!(a11==1)&&((a21==1)&&(((a19==1)&&((a17==8)&&((a25==1)&&(input==5))))&&(a28==11))))) [L411] COND FALSE !(((a19==1)&&((a17==8)&&(((((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))&&!(a11==1))&&(a21==1))))) [L416] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==7))&&!(a19==1))&&(a21==1))&&(a17==8))) [L419] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==10))&&(a19==1))&&(a21==1))&&(a17==8))) [L422] COND FALSE !(((((((a25==1)&&!(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==8))) [L425] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==7))) [L428] COND TRUE ((((((a25==1)&&(a11==1))&&(a28==9))&&(a19==1))&&(a21==1))&&(a17==8)) [L429] CALL reach_error() [L4] __assert_fail("0", "Problem02_label43.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 33.2s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 17.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 278 SDtfs, 3056 SDslu, 362 SDs, 0 SdLazy, 6364 SolverSat, 1015 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 41 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 7.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4396occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 6 MinimizatonAttempts, 221 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 13.5s InterpolantComputationTime, 810 NumberOfCodeBlocks, 810 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 670 ConstructedInterpolants, 0 QuantifiedInterpolants, 916859 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 110/117 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...