/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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 [2020-10-28 10:10:51,577 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 10:10:51,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 10:10:51,615 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 10:10:51,616 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 10:10:51,617 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 10:10:51,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 10:10:51,621 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 10:10:51,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 10:10:51,625 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 10:10:51,654 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 10:10:51,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 10:10:51,659 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 10:10:51,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 10:10:51,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 10:10:51,666 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 10:10:51,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 10:10:51,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 10:10:51,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 10:10:51,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 10:10:51,695 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 10:10:51,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 10:10:51,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 10:10:51,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 10:10:51,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 10:10:51,707 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 10:10:51,707 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 10:10:51,708 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 10:10:51,709 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 10:10:51,710 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 10:10:51,710 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 10:10:51,711 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 10:10:51,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 10:10:51,713 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 10:10:51,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 10:10:51,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 10:10:51,715 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 10:10:51,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 10:10:51,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 10:10:51,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 10:10:51,718 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 10:10:51,719 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 [2020-10-28 10:10:51,747 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 10:10:51,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 10:10:51,748 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 10:10:51,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 10:10:51,749 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 10:10:51,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 10:10:51,750 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 10:10:51,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 10:10:51,750 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 10:10:51,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 10:10:51,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 10:10:51,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 10:10:51,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 10:10:51,752 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 10:10:51,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 10:10:51,752 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 10:10:51,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 10:10:51,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 10:10:51,753 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 10:10:51,753 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 10:10:51,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 10:10:51,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 10:10:51,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 10:10:51,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 10:10:51,755 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 10:10:51,755 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 10:10:51,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 10:10:51,755 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 10:10:51,755 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 10:10:51,756 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 10:10:52,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 10:10:52,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 10:10:52,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 10:10:52,184 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 10:10:52,185 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 10:10:52,185 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label43.c [2020-10-28 10:10:52,266 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d07df2967/4a5d0d12acaf46baa577aad062444b52/FLAGf863850f1 [2020-10-28 10:10:52,932 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 10:10:52,933 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label43.c [2020-10-28 10:10:52,949 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d07df2967/4a5d0d12acaf46baa577aad062444b52/FLAGf863850f1 [2020-10-28 10:10:53,140 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d07df2967/4a5d0d12acaf46baa577aad062444b52 [2020-10-28 10:10:53,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 10:10:53,156 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 10:10:53,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 10:10:53,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 10:10:53,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 10:10:53,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:10:53" (1/1) ... [2020-10-28 10:10:53,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a921aaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:10:53, skipping insertion in model container [2020-10-28 10:10:53,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:10:53" (1/1) ... [2020-10-28 10:10:53,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 10:10:53,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 10:10:53,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 10:10:53,758 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 10:10:53,936 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 10:10:53,959 INFO L208 MainTranslator]: Completed translation [2020-10-28 10:10:53,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:10:53 WrapperNode [2020-10-28 10:10:53,960 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 10:10:53,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 10:10:53,961 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 10:10:53,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 10:10:53,975 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:10:53" (1/1) ... [2020-10-28 10:10:53,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:10:53" (1/1) ... [2020-10-28 10:10:53,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:10:53" (1/1) ... [2020-10-28 10:10:53,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:10:53" (1/1) ... [2020-10-28 10:10:54,040 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:10:53" (1/1) ... [2020-10-28 10:10:54,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:10:53" (1/1) ... [2020-10-28 10:10:54,065 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:10:53" (1/1) ... [2020-10-28 10:10:54,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 10:10:54,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 10:10:54,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 10:10:54,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 10:10:54,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:10:53" (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 [2020-10-28 10:10:54,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 10:10:54,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 10:10:54,167 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 10:10:54,167 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 10:10:54,167 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 10:10:54,168 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 10:10:54,168 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 10:10:54,169 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 10:10:54,169 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 10:10:54,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 10:10:54,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 10:10:54,170 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 10:10:54,171 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 10:10:54,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 10:10:54,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 10:10:54,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 10:10:54,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 10:10:54,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 10:10:54,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 10:10:55,405 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 10:10:55,406 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 10:10:55,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:10:55 BoogieIcfgContainer [2020-10-28 10:10:55,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 10:10:55,410 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 10:10:55,410 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 10:10:55,413 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 10:10:55,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 10:10:53" (1/3) ... [2020-10-28 10:10:55,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e15ed0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:10:55, skipping insertion in model container [2020-10-28 10:10:55,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:10:53" (2/3) ... [2020-10-28 10:10:55,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e15ed0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:10:55, skipping insertion in model container [2020-10-28 10:10:55,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:10:55" (3/3) ... [2020-10-28 10:10:55,416 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label43.c [2020-10-28 10:10:55,428 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 10:10:55,433 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 10:10:55,443 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 10:10:55,470 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 10:10:55,470 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 10:10:55,471 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 10:10:55,471 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 10:10:55,471 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 10:10:55,471 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 10:10:55,471 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 10:10:55,471 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 10:10:55,508 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-10-28 10:10:55,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-28 10:10:55,524 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:10:55,525 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] [2020-10-28 10:10:55,526 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:10:55,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:10:55,538 INFO L82 PathProgramCache]: Analyzing trace with hash -969779467, now seen corresponding path program 1 times [2020-10-28 10:10:55,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:10:55,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1471292758] [2020-10-28 10:10:55,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:10:55,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:10:55,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:10:56,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:10:57,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:10:57,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-28 10:10:57,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:10:57,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1510 [2020-10-28 10:10:57,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:10:57,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:10:57,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:10:57,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 10:10:57,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 10:10:57,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 10:10:57,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:10:57,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:10:57,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:10:57,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:10:57,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:10:57,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:10:57,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 10:10:57,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:10:57,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:10:57,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:10:57,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:10:57,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 10:10:57,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:10:57,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:10:57,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1471292758] [2020-10-28 10:10:57,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 10:10:57,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 10:10:57,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111074095] [2020-10-28 10:10:57,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 10:10:57,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:10:57,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 10:10:57,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 10:10:57,585 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 4 states. [2020-10-28 10:10:57,744 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-28 10:10:59,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:10:59,542 INFO L93 Difference]: Finished difference Result 636 states and 1085 transitions. [2020-10-28 10:10:59,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:10:59,544 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 92 [2020-10-28 10:10:59,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:10:59,571 INFO L225 Difference]: With dead ends: 636 [2020-10-28 10:10:59,571 INFO L226 Difference]: Without dead ends: 332 [2020-10-28 10:10:59,588 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 [2020-10-28 10:10:59,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-10-28 10:10:59,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 326. [2020-10-28 10:10:59,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2020-10-28 10:10:59,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 428 transitions. [2020-10-28 10:10:59,692 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 428 transitions. Word has length 92 [2020-10-28 10:10:59,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:10:59,693 INFO L481 AbstractCegarLoop]: Abstraction has 326 states and 428 transitions. [2020-10-28 10:10:59,693 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 10:10:59,693 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 428 transitions. [2020-10-28 10:10:59,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-28 10:10:59,700 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:10:59,700 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] [2020-10-28 10:10:59,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 10:10:59,701 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:10:59,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:10:59,702 INFO L82 PathProgramCache]: Analyzing trace with hash 236167828, now seen corresponding path program 1 times [2020-10-28 10:10:59,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:10:59,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2107098164] [2020-10-28 10:10:59,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:10:59,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:10:59,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:10:59,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:00,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:01,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:01,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 10:11:01,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 10:11:01,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1569 [2020-10-28 10:11:01,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:01,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:01,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:11:01,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 10:11:01,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-28 10:11:01,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:01,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:11:01,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:01,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:01,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:01,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:11:01,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:01,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 10:11:01,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:01,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:01,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:11:01,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:01,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:11:01,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 10:11:01,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:11:01,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:01,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:01,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:01,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 10:11:01,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:01,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 10:11:01,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:01,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:01,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:11:01,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:01,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 10:11:01,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:01,590 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:11:01,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2107098164] [2020-10-28 10:11:01,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:11:01,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:11:01,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897148610] [2020-10-28 10:11:01,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:11:01,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:11:01,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:11:01,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:11:01,600 INFO L87 Difference]: Start difference. First operand 326 states and 428 transitions. Second operand 5 states. [2020-10-28 10:11:03,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:11:03,113 INFO L93 Difference]: Finished difference Result 944 states and 1260 transitions. [2020-10-28 10:11:03,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:11:03,113 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2020-10-28 10:11:03,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:11:03,119 INFO L225 Difference]: With dead ends: 944 [2020-10-28 10:11:03,119 INFO L226 Difference]: Without dead ends: 624 [2020-10-28 10:11:03,121 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:11:03,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2020-10-28 10:11:03,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 620. [2020-10-28 10:11:03,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 620 states. [2020-10-28 10:11:03,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 801 transitions. [2020-10-28 10:11:03,172 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 801 transitions. Word has length 101 [2020-10-28 10:11:03,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:11:03,174 INFO L481 AbstractCegarLoop]: Abstraction has 620 states and 801 transitions. [2020-10-28 10:11:03,174 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:11:03,174 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 801 transitions. [2020-10-28 10:11:03,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-28 10:11:03,187 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:11:03,187 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] [2020-10-28 10:11:03,188 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 10:11:03,188 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:11:03,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:11:03,188 INFO L82 PathProgramCache]: Analyzing trace with hash 315336648, now seen corresponding path program 1 times [2020-10-28 10:11:03,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:11:03,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [580533091] [2020-10-28 10:11:03,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:11:03,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:03,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:03,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:03,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-28 10:11:03,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:03,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 310 [2020-10-28 10:11:03,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:03,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:03,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:11:03,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 10:11:03,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 10:11:03,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:03,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:11:03,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:03,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:03,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:03,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:11:03,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:03,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 10:11:03,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:03,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:03,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:11:03,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:03,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:11:03,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:03,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:11:03,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:03,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:03,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:03,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 10:11:03,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:03,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 10:11:03,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:03,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:03,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:11:03,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:03,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 10:11:03,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:03,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-28 10:11:03,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:03,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:03,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:03,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 10:11:03,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:03,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 10:11:03,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:03,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:03,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:11:03,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:11:03,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 10:11:03,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:03,791 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 10:11:03,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [580533091] [2020-10-28 10:11:03,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:11:03,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:11:03,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543694670] [2020-10-28 10:11:03,795 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:11:03,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:11:03,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:11:03,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:11:03,797 INFO L87 Difference]: Start difference. First operand 620 states and 801 transitions. Second operand 7 states. [2020-10-28 10:11:04,137 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-28 10:11:06,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:11:06,018 INFO L93 Difference]: Finished difference Result 1559 states and 2144 transitions. [2020-10-28 10:11:06,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 10:11:06,018 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 109 [2020-10-28 10:11:06,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:11:06,025 INFO L225 Difference]: With dead ends: 1559 [2020-10-28 10:11:06,025 INFO L226 Difference]: Without dead ends: 945 [2020-10-28 10:11:06,027 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 [2020-10-28 10:11:06,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2020-10-28 10:11:06,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 924. [2020-10-28 10:11:06,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 924 states. [2020-10-28 10:11:06,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1176 transitions. [2020-10-28 10:11:06,072 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1176 transitions. Word has length 109 [2020-10-28 10:11:06,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:11:06,073 INFO L481 AbstractCegarLoop]: Abstraction has 924 states and 1176 transitions. [2020-10-28 10:11:06,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:11:06,073 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1176 transitions. [2020-10-28 10:11:06,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 10:11:06,076 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:11:06,077 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] [2020-10-28 10:11:06,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 10:11:06,077 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:11:06,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:11:06,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1868932814, now seen corresponding path program 1 times [2020-10-28 10:11:06,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:11:06,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1560659987] [2020-10-28 10:11:06,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:11:06,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:06,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:06,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:06,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:07,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:07,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-28 10:11:07,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 10:11:07,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1769 [2020-10-28 10:11:07,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:07,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:07,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:11:07,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-28 10:11:07,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-28 10:11:07,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:08,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:11:08,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:08,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:08,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:08,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:11:08,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:08,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 10:11:08,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:08,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:08,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:11:08,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:08,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:11:08,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:08,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:11:08,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:08,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:08,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:08,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 10:11:08,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:08,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 10:11:08,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:08,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:08,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:11:08,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:08,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 10:11:08,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:08,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 10:11:08,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:08,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:08,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:08,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:08,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 10:11:08,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:11:08,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 10:11:08,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:08,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:08,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:11:08,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:11:08,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 10:11:08,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:08,157 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 10:11:08,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1560659987] [2020-10-28 10:11:08,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:11:08,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:11:08,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715054518] [2020-10-28 10:11:08,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:11:08,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:11:08,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:11:08,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:11:08,160 INFO L87 Difference]: Start difference. First operand 924 states and 1176 transitions. Second operand 7 states. [2020-10-28 10:11:11,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:11:11,072 INFO L93 Difference]: Finished difference Result 3684 states and 5167 transitions. [2020-10-28 10:11:11,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 10:11:11,072 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 121 [2020-10-28 10:11:11,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:11:11,096 INFO L225 Difference]: With dead ends: 3684 [2020-10-28 10:11:11,096 INFO L226 Difference]: Without dead ends: 2766 [2020-10-28 10:11:11,102 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 10:11:11,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2766 states. [2020-10-28 10:11:11,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2766 to 2296. [2020-10-28 10:11:11,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2296 states. [2020-10-28 10:11:11,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2296 states to 2296 states and 2945 transitions. [2020-10-28 10:11:11,246 INFO L78 Accepts]: Start accepts. Automaton has 2296 states and 2945 transitions. Word has length 121 [2020-10-28 10:11:11,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:11:11,246 INFO L481 AbstractCegarLoop]: Abstraction has 2296 states and 2945 transitions. [2020-10-28 10:11:11,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:11:11,247 INFO L276 IsEmpty]: Start isEmpty. Operand 2296 states and 2945 transitions. [2020-10-28 10:11:11,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-28 10:11:11,257 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:11:11,258 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2020-10-28 10:11:11,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 10:11:11,258 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:11:11,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:11:11,259 INFO L82 PathProgramCache]: Analyzing trace with hash -644168057, now seen corresponding path program 1 times [2020-10-28 10:11:11,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:11:11,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [342383780] [2020-10-28 10:11:11,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:11:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:11,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:11,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:11,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:12,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:13,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:13,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-28 10:11:13,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 10:11:13,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1907 [2020-10-28 10:11:13,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:13,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:13,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:11:13,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-28 10:11:13,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-28 10:11:13,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 10:11:13,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:11:13,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:13,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:13,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:13,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:11:13,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:13,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 10:11:13,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:13,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:13,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:11:13,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:13,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:11:13,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:13,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:11:13,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:13,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:13,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:13,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 10:11:13,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:13,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-28 10:11:13,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:13,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:13,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:11:13,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:13,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 10:11:13,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:13,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 10:11:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:13,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:13,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:13,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:13,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 10:11:13,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:11:13,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 10:11:13,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:13,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:13,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:11:13,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:11:13,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 10:11:13,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:13,516 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 10:11:13,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [342383780] [2020-10-28 10:11:13,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:11:13,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 10:11:13,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386009085] [2020-10-28 10:11:13,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 10:11:13,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:11:13,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 10:11:13,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 10:11:13,519 INFO L87 Difference]: Start difference. First operand 2296 states and 2945 transitions. Second operand 8 states. [2020-10-28 10:11:16,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:11:16,194 INFO L93 Difference]: Finished difference Result 5340 states and 7122 transitions. [2020-10-28 10:11:16,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 10:11:16,194 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 124 [2020-10-28 10:11:16,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:11:16,219 INFO L225 Difference]: With dead ends: 5340 [2020-10-28 10:11:16,219 INFO L226 Difference]: Without dead ends: 3054 [2020-10-28 10:11:16,228 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-28 10:11:16,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3054 states. [2020-10-28 10:11:16,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3054 to 3044. [2020-10-28 10:11:16,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3044 states. [2020-10-28 10:11:16,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3044 states to 3044 states and 3886 transitions. [2020-10-28 10:11:16,351 INFO L78 Accepts]: Start accepts. Automaton has 3044 states and 3886 transitions. Word has length 124 [2020-10-28 10:11:16,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:11:16,351 INFO L481 AbstractCegarLoop]: Abstraction has 3044 states and 3886 transitions. [2020-10-28 10:11:16,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 10:11:16,352 INFO L276 IsEmpty]: Start isEmpty. Operand 3044 states and 3886 transitions. [2020-10-28 10:11:16,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-28 10:11:16,360 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:11:16,360 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] [2020-10-28 10:11:16,360 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 10:11:16,360 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:11:16,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:11:16,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1911016350, now seen corresponding path program 1 times [2020-10-28 10:11:16,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:11:16,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1893340283] [2020-10-28 10:11:16,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:11:16,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 10:11:16,397 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 10:11:16,398 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 10:11:16,403 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 10:11:16,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 10:11:16 BoogieIcfgContainer [2020-10-28 10:11:16,446 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 10:11:16,449 INFO L168 Benchmark]: Toolchain (without parser) took 23299.74 ms. Allocated memory was 157.3 MB in the beginning and 459.3 MB in the end (delta: 302.0 MB). Free memory was 135.6 MB in the beginning and 316.8 MB in the end (delta: -181.2 MB). Peak memory consumption was 120.6 MB. Max. memory is 8.0 GB. [2020-10-28 10:11:16,450 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 157.3 MB. Free memory is still 128.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 10:11:16,452 INFO L168 Benchmark]: CACSL2BoogieTranslator took 802.50 ms. Allocated memory is still 157.3 MB. Free memory was 134.8 MB in the beginning and 130.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 19.8 MB. Max. memory is 8.0 GB. [2020-10-28 10:11:16,455 INFO L168 Benchmark]: Boogie Preprocessor took 114.94 ms. Allocated memory is still 157.3 MB. Free memory was 130.9 MB in the beginning and 126.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-28 10:11:16,459 INFO L168 Benchmark]: RCFGBuilder took 1327.81 ms. Allocated memory was 157.3 MB in the beginning and 209.7 MB in the end (delta: 52.4 MB). Free memory was 125.6 MB in the beginning and 121.2 MB in the end (delta: 4.4 MB). Peak memory consumption was 57.4 MB. Max. memory is 8.0 GB. [2020-10-28 10:11:16,460 INFO L168 Benchmark]: TraceAbstraction took 21036.81 ms. Allocated memory was 209.7 MB in the beginning and 459.3 MB in the end (delta: 249.6 MB). Free memory was 120.6 MB in the beginning and 316.8 MB in the end (delta: -196.2 MB). Peak memory consumption was 52.9 MB. Max. memory is 8.0 GB. [2020-10-28 10:11:16,471 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 157.3 MB. Free memory is still 128.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 802.50 ms. Allocated memory is still 157.3 MB. Free memory was 134.8 MB in the beginning and 130.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 19.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 114.94 ms. Allocated memory is still 157.3 MB. Free memory was 130.9 MB in the beginning and 126.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1327.81 ms. Allocated memory was 157.3 MB in the beginning and 209.7 MB in the end (delta: 52.4 MB). Free memory was 125.6 MB in the beginning and 121.2 MB in the end (delta: 4.4 MB). Peak memory consumption was 57.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 21036.81 ms. Allocated memory was 209.7 MB in the beginning and 459.3 MB in the end (delta: 249.6 MB). Free memory was 120.6 MB in the beginning and 316.8 MB in the end (delta: -196.2 MB). Peak memory consumption was 52.9 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: 20.9s, OverallIterations: 6, TraceHistogramMax: 3, AutomataDifference: 11.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 229 SDtfs, 2214 SDslu, 316 SDs, 0 SdLazy, 5481 SolverSat, 894 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3044occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 511 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 8.3s InterpolantComputationTime, 681 NumberOfCodeBlocks, 681 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 542 ConstructedInterpolants, 0 QuantifiedInterpolants, 217774 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 73/89 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...