/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=SHALLOWEST --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 [2020-10-26 20:39:41,282 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:39:41,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:39:41,349 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:39:41,350 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:39:41,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:39:41,359 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:39:41,365 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:39:41,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:39:41,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:39:41,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:39:41,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:39:41,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:39:41,382 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:39:41,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:39:41,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:39:41,387 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:39:41,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:39:41,420 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:39:41,428 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:39:41,430 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:39:41,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:39:41,435 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:39:41,437 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:39:41,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:39:41,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:39:41,441 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:39:41,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:39:41,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:39:41,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:39:41,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:39:41,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:39:41,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:39:41,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:39:41,449 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:39:41,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:39:41,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:39:41,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:39:41,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:39:41,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:39:41,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:39:41,453 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 [2020-10-26 20:39:41,481 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:39:41,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:39:41,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:39:41,483 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:39:41,484 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:39:41,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:39:41,484 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:39:41,485 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:39:41,485 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:39:41,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:39:41,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:39:41,486 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:39:41,486 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:39:41,486 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:39:41,487 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:39:41,487 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:39:41,487 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:39:41,488 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:39:41,488 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:39:41,488 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:39:41,488 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:39:41,489 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:39:41,489 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:39:41,489 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:39:41,490 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:39:41,490 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:39:41,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:39:41,490 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:39:41,491 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:39:41,491 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:39:41,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:39:42,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:39:42,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:39:42,008 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:39:42,009 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:39:42,010 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label43.c [2020-10-26 20:39:42,087 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2ea572dfa/8317f9c648834b54b0c0d26c7906a7d1/FLAGf8dcf1737 [2020-10-26 20:39:42,807 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:39:42,808 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label43.c [2020-10-26 20:39:42,835 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2ea572dfa/8317f9c648834b54b0c0d26c7906a7d1/FLAGf8dcf1737 [2020-10-26 20:39:43,070 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2ea572dfa/8317f9c648834b54b0c0d26c7906a7d1 [2020-10-26 20:39:43,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:39:43,083 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:39:43,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:39:43,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:39:43,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:39:43,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:39:43" (1/1) ... [2020-10-26 20:39:43,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3536e044 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:43, skipping insertion in model container [2020-10-26 20:39:43,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:39:43" (1/1) ... [2020-10-26 20:39:43,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:39:43,187 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:39:43,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:39:43,716 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:39:43,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:39:43,989 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:39:43,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:43 WrapperNode [2020-10-26 20:39:43,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:39:43,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:39:43,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:39:43,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:39:44,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:43" (1/1) ... [2020-10-26 20:39:44,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:43" (1/1) ... [2020-10-26 20:39:44,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:43" (1/1) ... [2020-10-26 20:39:44,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:43" (1/1) ... [2020-10-26 20:39:44,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:43" (1/1) ... [2020-10-26 20:39:44,089 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:43" (1/1) ... [2020-10-26 20:39:44,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:43" (1/1) ... [2020-10-26 20:39:44,121 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:39:44,122 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:39:44,122 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:39:44,122 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:39:44,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:43" (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 [2020-10-26 20:39:44,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:39:44,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:39:44,197 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:39:44,198 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:39:44,198 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:39:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:39:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:39:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:39:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:39:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:39:44,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:39:44,199 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:39:44,199 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:39:44,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:39:44,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:39:44,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:39:44,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:39:44,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:39:44,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:39:45,896 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:39:45,897 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:39:45,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:39:45 BoogieIcfgContainer [2020-10-26 20:39:45,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:39:45,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:39:45,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:39:45,905 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:39:45,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:39:43" (1/3) ... [2020-10-26 20:39:45,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a47d7ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:39:45, skipping insertion in model container [2020-10-26 20:39:45,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:43" (2/3) ... [2020-10-26 20:39:45,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a47d7ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:39:45, skipping insertion in model container [2020-10-26 20:39:45,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:39:45" (3/3) ... [2020-10-26 20:39:45,908 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label43.c [2020-10-26 20:39:45,921 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:39:45,927 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:39:45,941 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:39:45,971 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:39:45,971 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:39:45,972 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:39:45,972 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:39:45,972 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:39:45,972 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:39:45,972 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:39:45,972 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:39:45,997 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-10-26 20:39:46,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-26 20:39:46,008 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:39:46,009 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] [2020-10-26 20:39:46,010 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:39:46,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:39:46,017 INFO L82 PathProgramCache]: Analyzing trace with hash -969779467, now seen corresponding path program 1 times [2020-10-26 20:39:46,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:39:46,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [241349909] [2020-10-26 20:39:46,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:39:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:46,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:46,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:47,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:47,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-26 20:39:47,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:39:47,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1624 [2020-10-26 20:39:47,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:47,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:39:47,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:39:47,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-26 20:39:47,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:39:48,242 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-26 20:39:48,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:39:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:48,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:48,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:48,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:39:48,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:48,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-26 20:39:48,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:48,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:39:48,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:39:48,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:39:48,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:39:48,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:39:48,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [241349909] [2020-10-26 20:39:48,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:39:48,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 20:39:48,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782947534] [2020-10-26 20:39:48,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:39:48,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:39:48,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:39:48,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:39:48,407 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 4 states. [2020-10-26 20:39:48,602 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-26 20:39:50,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:39:50,655 INFO L93 Difference]: Finished difference Result 636 states and 1085 transitions. [2020-10-26 20:39:50,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:39:50,657 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 92 [2020-10-26 20:39:50,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:39:50,677 INFO L225 Difference]: With dead ends: 636 [2020-10-26 20:39:50,677 INFO L226 Difference]: Without dead ends: 332 [2020-10-26 20:39:50,686 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:39:50,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-10-26 20:39:50,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 326. [2020-10-26 20:39:50,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2020-10-26 20:39:50,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 428 transitions. [2020-10-26 20:39:50,804 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 428 transitions. Word has length 92 [2020-10-26 20:39:50,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:39:50,805 INFO L481 AbstractCegarLoop]: Abstraction has 326 states and 428 transitions. [2020-10-26 20:39:50,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:39:50,805 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 428 transitions. [2020-10-26 20:39:50,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-26 20:39:50,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:39:50,814 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] [2020-10-26 20:39:50,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:39:50,815 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:39:50,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:39:50,815 INFO L82 PathProgramCache]: Analyzing trace with hash 236167828, now seen corresponding path program 1 times [2020-10-26 20:39:50,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:39:50,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [147325798] [2020-10-26 20:39:50,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:39:50,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:50,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:50,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:51,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:52,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:52,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-26 20:39:52,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:39:52,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1711 [2020-10-26 20:39:52,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:52,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:39:52,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:39:52,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-26 20:39:52,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:52,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:39:52,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:52,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:52,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:52,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:39:52,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:52,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-26 20:39:52,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:52,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:39:52,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:39:52,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:39:52,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 20:39:52,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:39:52,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:52,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:52,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:52,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:39:52,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:52,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:39:52,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:52,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:39:52,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:39:52,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:39:52,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:39:52,959 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:39:52,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [147325798] [2020-10-26 20:39:52,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:39:52,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:39:52,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718008691] [2020-10-26 20:39:52,963 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:39:52,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:39:52,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:39:52,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:39:52,972 INFO L87 Difference]: Start difference. First operand 326 states and 428 transitions. Second operand 6 states. [2020-10-26 20:39:54,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:39:54,748 INFO L93 Difference]: Finished difference Result 964 states and 1285 transitions. [2020-10-26 20:39:54,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:39:54,750 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 101 [2020-10-26 20:39:54,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:39:54,757 INFO L225 Difference]: With dead ends: 964 [2020-10-26 20:39:54,758 INFO L226 Difference]: Without dead ends: 644 [2020-10-26 20:39:54,760 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:39:54,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2020-10-26 20:39:54,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 640. [2020-10-26 20:39:54,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 640 states. [2020-10-26 20:39:54,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 827 transitions. [2020-10-26 20:39:54,821 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 827 transitions. Word has length 101 [2020-10-26 20:39:54,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:39:54,822 INFO L481 AbstractCegarLoop]: Abstraction has 640 states and 827 transitions. [2020-10-26 20:39:54,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:39:54,822 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 827 transitions. [2020-10-26 20:39:54,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-26 20:39:54,835 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:39:54,835 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2020-10-26 20:39:54,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:39:54,836 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:39:54,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:39:54,836 INFO L82 PathProgramCache]: Analyzing trace with hash 315336648, now seen corresponding path program 1 times [2020-10-26 20:39:54,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:39:54,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1300600844] [2020-10-26 20:39:54,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:39:54,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:54,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:55,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:55,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-26 20:39:55,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:55,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-10-26 20:39:55,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:55,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:39:55,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-26 20:39:55,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-26 20:39:55,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:55,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:39:55,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:55,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:55,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:55,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:39:55,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:55,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 20:39:55,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:55,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:39:55,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:39:55,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:39:55,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:55,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:39:55,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:55,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:55,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:55,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:39:55,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:55,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:39:55,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:55,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:39:55,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:39:55,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-26 20:39:55,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:55,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-26 20:39:55,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:55,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:55,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:55,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:39:55,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:55,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:39:55,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:55,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:39:55,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:39:55,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:39:55,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:55,385 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 20:39:55,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1300600844] [2020-10-26 20:39:55,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:39:55,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:39:55,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762534182] [2020-10-26 20:39:55,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:39:55,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:39:55,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:39:55,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:39:55,393 INFO L87 Difference]: Start difference. First operand 640 states and 827 transitions. Second operand 7 states. [2020-10-26 20:39:57,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:39:57,659 INFO L93 Difference]: Finished difference Result 1610 states and 2209 transitions. [2020-10-26 20:39:57,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:39:57,660 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 109 [2020-10-26 20:39:57,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:39:57,666 INFO L225 Difference]: With dead ends: 1610 [2020-10-26 20:39:57,667 INFO L226 Difference]: Without dead ends: 976 [2020-10-26 20:39:57,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:39:57,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2020-10-26 20:39:57,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 946. [2020-10-26 20:39:57,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 946 states. [2020-10-26 20:39:57,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1201 transitions. [2020-10-26 20:39:57,745 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1201 transitions. Word has length 109 [2020-10-26 20:39:57,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:39:57,749 INFO L481 AbstractCegarLoop]: Abstraction has 946 states and 1201 transitions. [2020-10-26 20:39:57,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:39:57,749 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1201 transitions. [2020-10-26 20:39:57,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-26 20:39:57,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:39:57,755 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] [2020-10-26 20:39:57,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:39:57,755 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:39:57,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:39:57,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1868932814, now seen corresponding path program 1 times [2020-10-26 20:39:57,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:39:57,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [162957934] [2020-10-26 20:39:57,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:39:57,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:57,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:57,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:58,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:59,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:59,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 20:39:59,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:39:59,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1886 [2020-10-26 20:39:59,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:59,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:39:59,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:39:59,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-26 20:39:59,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:59,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:39:59,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:59,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:59,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:59,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:39:59,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:59,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:39:59,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:59,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:39:59,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:39:59,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:39:59,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:59,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:39:59,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:59,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:59,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:59,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-26 20:39:59,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:59,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-26 20:39:59,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:59,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:39:59,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:39:59,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-26 20:39:59,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:59,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-26 20:39:59,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:59,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:59,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:59,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:39:59,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:59,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:39:59,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:59,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:39:59,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 20:39:59,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:39:59,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:39:59,947 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 20:39:59,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [162957934] [2020-10-26 20:39:59,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:39:59,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:39:59,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451298334] [2020-10-26 20:39:59,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:39:59,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:39:59,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:39:59,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:39:59,950 INFO L87 Difference]: Start difference. First operand 946 states and 1201 transitions. Second operand 7 states. [2020-10-26 20:40:00,524 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-26 20:40:01,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:40:01,956 INFO L93 Difference]: Finished difference Result 2842 states and 3828 transitions. [2020-10-26 20:40:01,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:40:01,957 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 121 [2020-10-26 20:40:01,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:40:01,971 INFO L225 Difference]: With dead ends: 2842 [2020-10-26 20:40:01,971 INFO L226 Difference]: Without dead ends: 1902 [2020-10-26 20:40:01,976 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:40:01,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1902 states. [2020-10-26 20:40:02,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1902 to 1866. [2020-10-26 20:40:02,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1866 states. [2020-10-26 20:40:02,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1866 states to 1866 states and 2341 transitions. [2020-10-26 20:40:02,071 INFO L78 Accepts]: Start accepts. Automaton has 1866 states and 2341 transitions. Word has length 121 [2020-10-26 20:40:02,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:40:02,072 INFO L481 AbstractCegarLoop]: Abstraction has 1866 states and 2341 transitions. [2020-10-26 20:40:02,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:40:02,072 INFO L276 IsEmpty]: Start isEmpty. Operand 1866 states and 2341 transitions. [2020-10-26 20:40:02,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-26 20:40:02,076 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:40:02,077 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] [2020-10-26 20:40:02,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:40:02,077 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:40:02,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:40:02,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1911016350, now seen corresponding path program 1 times [2020-10-26 20:40:02,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:40:02,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1711077796] [2020-10-26 20:40:02,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:40:02,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 20:40:02,118 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-26 20:40:02,118 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-26 20:40:02,123 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:40:02,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:40:02 BoogieIcfgContainer [2020-10-26 20:40:02,152 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:40:02,154 INFO L168 Benchmark]: Toolchain (without parser) took 19077.40 ms. Allocated memory was 155.2 MB in the beginning and 352.3 MB in the end (delta: 197.1 MB). Free memory was 129.1 MB in the beginning and 296.8 MB in the end (delta: -167.7 MB). Peak memory consumption was 29.6 MB. Max. memory is 8.0 GB. [2020-10-26 20:40:02,155 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 155.2 MB. Free memory is still 127.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:40:02,156 INFO L168 Benchmark]: CACSL2BoogieTranslator took 903.30 ms. Allocated memory is still 155.2 MB. Free memory was 128.5 MB in the beginning and 134.3 MB in the end (delta: -5.8 MB). Peak memory consumption was 27.6 MB. Max. memory is 8.0 GB. [2020-10-26 20:40:02,157 INFO L168 Benchmark]: Boogie Preprocessor took 128.74 ms. Allocated memory is still 155.2 MB. Free memory was 134.3 MB in the beginning and 129.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:40:02,158 INFO L168 Benchmark]: RCFGBuilder took 1777.37 ms. Allocated memory is still 155.2 MB. Free memory was 129.4 MB in the beginning and 106.4 MB in the end (delta: 23.0 MB). Peak memory consumption was 78.6 MB. Max. memory is 8.0 GB. [2020-10-26 20:40:02,159 INFO L168 Benchmark]: TraceAbstraction took 16251.28 ms. Allocated memory was 155.2 MB in the beginning and 352.3 MB in the end (delta: 197.1 MB). Free memory was 105.9 MB in the beginning and 296.8 MB in the end (delta: -191.0 MB). Peak memory consumption was 6.1 MB. Max. memory is 8.0 GB. [2020-10-26 20:40:02,162 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 155.2 MB. Free memory is still 127.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 903.30 ms. Allocated memory is still 155.2 MB. Free memory was 128.5 MB in the beginning and 134.3 MB in the end (delta: -5.8 MB). Peak memory consumption was 27.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 128.74 ms. Allocated memory is still 155.2 MB. Free memory was 134.3 MB in the beginning and 129.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1777.37 ms. Allocated memory is still 155.2 MB. Free memory was 129.4 MB in the beginning and 106.4 MB in the end (delta: 23.0 MB). Peak memory consumption was 78.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 16251.28 ms. Allocated memory was 155.2 MB in the beginning and 352.3 MB in the end (delta: 197.1 MB). Free memory was 105.9 MB in the beginning and 296.8 MB in the end (delta: -191.0 MB). Peak memory consumption was 6.1 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: 16.1s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 8.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 150 SDtfs, 1937 SDslu, 200 SDs, 0 SdLazy, 3254 SolverSat, 742 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1866occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 76 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 557 NumberOfCodeBlocks, 557 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 419 ConstructedInterpolants, 0 QuantifiedInterpolants, 135384 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 48/54 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...