/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/Problem01_label15.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:32:01,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:32:01,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:32:01,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:32:01,055 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:32:01,058 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:32:01,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:32:01,066 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:32:01,071 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:32:01,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:32:01,076 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:32:01,077 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:32:01,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:32:01,085 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:32:01,086 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:32:01,087 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:32:01,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:32:01,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:32:01,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:32:01,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:32:01,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:32:01,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:32:01,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:32:01,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:32:01,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:32:01,126 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:32:01,126 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:32:01,130 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:32:01,131 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:32:01,132 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:32:01,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:32:01,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:32:01,137 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:32:01,139 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:32:01,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:32:01,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:32:01,152 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:32:01,152 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:32:01,153 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:32:01,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:32:01,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:32:01,155 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 20:32:01,182 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:32:01,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:32:01,184 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:32:01,184 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:32:01,184 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:32:01,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:32:01,185 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:32:01,185 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:32:01,185 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:32:01,185 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:32:01,185 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:32:01,186 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:32:01,186 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:32:01,186 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:32:01,186 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:32:01,186 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:32:01,187 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:32:01,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:32:01,187 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:32:01,187 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:32:01,187 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:32:01,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:32:01,188 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:32:01,188 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:32:01,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:32:01,188 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:32:01,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:32:01,189 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:32:01,189 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:32:01,189 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:32:01,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:32:01,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:32:01,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:32:01,646 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:32:01,647 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:32:01,648 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label15.c [2020-10-26 20:32:01,722 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5dbaefc5/10ede8e9be3544d19521d609b47f1dc2/FLAGdc09bb466 [2020-10-26 20:32:02,516 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:32:02,517 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label15.c [2020-10-26 20:32:02,530 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5dbaefc5/10ede8e9be3544d19521d609b47f1dc2/FLAGdc09bb466 [2020-10-26 20:32:02,694 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5dbaefc5/10ede8e9be3544d19521d609b47f1dc2 [2020-10-26 20:32:02,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:32:02,708 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:32:02,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:32:02,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:32:02,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:32:02,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:32:02" (1/1) ... [2020-10-26 20:32:02,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b33b144 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:02, skipping insertion in model container [2020-10-26 20:32:02,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:32:02" (1/1) ... [2020-10-26 20:32:02,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:32:02,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:32:03,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:32:03,333 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:32:03,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:32:03,529 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:32:03,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:03 WrapperNode [2020-10-26 20:32:03,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:32:03,532 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:32:03,532 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:32:03,532 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:32:03,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:03" (1/1) ... [2020-10-26 20:32:03,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:03" (1/1) ... [2020-10-26 20:32:03,570 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:03" (1/1) ... [2020-10-26 20:32:03,571 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:03" (1/1) ... [2020-10-26 20:32:03,614 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:03" (1/1) ... [2020-10-26 20:32:03,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:03" (1/1) ... [2020-10-26 20:32:03,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:03" (1/1) ... [2020-10-26 20:32:03,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:32:03,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:32:03,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:32:03,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:32:03,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:03" (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 20:32:03,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:32:03,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:32:03,739 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:32:03,740 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:32:03,740 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:32:03,740 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:32:03,740 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:32:03,740 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:32:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:32:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:32:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:32:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:32:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:32:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:32:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:32:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:32:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:32:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:32:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:32:04,961 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:32:04,961 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:32:04,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:32:04 BoogieIcfgContainer [2020-10-26 20:32:04,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:32:04,966 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:32:04,966 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:32:04,970 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:32:04,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:32:02" (1/3) ... [2020-10-26 20:32:04,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2effd278 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:32:04, skipping insertion in model container [2020-10-26 20:32:04,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:03" (2/3) ... [2020-10-26 20:32:04,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2effd278 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:32:04, skipping insertion in model container [2020-10-26 20:32:04,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:32:04" (3/3) ... [2020-10-26 20:32:04,974 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label15.c [2020-10-26 20:32:04,988 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:32:04,993 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:32:05,008 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:32:05,039 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:32:05,040 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:32:05,040 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:32:05,040 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:32:05,040 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:32:05,040 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:32:05,040 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:32:05,041 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:32:05,065 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-26 20:32:05,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-26 20:32:05,079 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:05,080 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] [2020-10-26 20:32:05,081 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:05,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:05,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1917998479, now seen corresponding path program 1 times [2020-10-26 20:32:05,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:05,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1917972253] [2020-10-26 20:32:05,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:05,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:05,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:05,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:07,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:07,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-26 20:32:07,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:07,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1874 [2020-10-26 20:32:07,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:07,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-26 20:32:07,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:07,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-26 20:32:07,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:32:08,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:08,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:08,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:08,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:08,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:08,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:08,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-26 20:32:08,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:08,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:08,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:08,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:08,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:32:08,686 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 20:32:08,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1917972253] [2020-10-26 20:32:08,690 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:32:08,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-26 20:32:08,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775811135] [2020-10-26 20:32:08,701 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-26 20:32:08,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:08,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-26 20:32:08,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:32:08,728 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 12 states. [2020-10-26 20:32:08,957 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-26 20:32:09,165 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-26 20:32:09,360 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-26 20:32:09,600 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-26 20:32:10,054 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 120 [2020-10-26 20:32:10,526 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 119 [2020-10-26 20:32:11,175 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 118 [2020-10-26 20:32:11,937 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 117 [2020-10-26 20:32:12,525 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 115 [2020-10-26 20:32:14,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:14,037 INFO L93 Difference]: Finished difference Result 479 states and 799 transitions. [2020-10-26 20:32:14,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:32:14,039 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 88 [2020-10-26 20:32:14,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:14,051 INFO L225 Difference]: With dead ends: 479 [2020-10-26 20:32:14,052 INFO L226 Difference]: Without dead ends: 206 [2020-10-26 20:32:14,060 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2020-10-26 20:32:14,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-10-26 20:32:14,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2020-10-26 20:32:14,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-26 20:32:14,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 278 transitions. [2020-10-26 20:32:14,180 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 278 transitions. Word has length 88 [2020-10-26 20:32:14,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:14,182 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 278 transitions. [2020-10-26 20:32:14,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-26 20:32:14,183 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 278 transitions. [2020-10-26 20:32:14,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-26 20:32:14,201 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:14,202 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-26 20:32:14,202 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:32:14,202 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:14,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:14,206 INFO L82 PathProgramCache]: Analyzing trace with hash 330402703, now seen corresponding path program 1 times [2020-10-26 20:32:14,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:14,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [146478775] [2020-10-26 20:32:14,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:14,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:14,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:14,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:15,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:16,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:16,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-26 20:32:16,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:32:16,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1910 [2020-10-26 20:32:16,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:16,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:32:16,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:16,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-26 20:32:16,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-26 20:32:16,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:16,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:16,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:16,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:16,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:16,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:32:16,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:16,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:16,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:16,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:16,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:32:16,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:16,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:16,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:16,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:16,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:16,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:32:16,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:16,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:32:16,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:16,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:16,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:16,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:32:16,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:16,517 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:32:16,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [146478775] [2020-10-26 20:32:16,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:16,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:32:16,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132377879] [2020-10-26 20:32:16,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:32:16,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:16,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:32:16,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:32:16,521 INFO L87 Difference]: Start difference. First operand 206 states and 278 transitions. Second operand 6 states. [2020-10-26 20:32:18,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:18,097 INFO L93 Difference]: Finished difference Result 485 states and 695 transitions. [2020-10-26 20:32:18,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:32:18,098 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 96 [2020-10-26 20:32:18,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:18,106 INFO L225 Difference]: With dead ends: 485 [2020-10-26 20:32:18,107 INFO L226 Difference]: Without dead ends: 345 [2020-10-26 20:32:18,115 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 20:32:18,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-10-26 20:32:18,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 343. [2020-10-26 20:32:18,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2020-10-26 20:32:18,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 467 transitions. [2020-10-26 20:32:18,149 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 467 transitions. Word has length 96 [2020-10-26 20:32:18,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:18,150 INFO L481 AbstractCegarLoop]: Abstraction has 343 states and 467 transitions. [2020-10-26 20:32:18,150 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:32:18,150 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 467 transitions. [2020-10-26 20:32:18,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-26 20:32:18,152 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:18,153 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:18,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:32:18,153 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:18,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:18,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1312986258, now seen corresponding path program 1 times [2020-10-26 20:32:18,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:18,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2086752766] [2020-10-26 20:32:18,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:18,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:18,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:18,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:19,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:19,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-26 20:32:19,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:19,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 832 [2020-10-26 20:32:19,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:19,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:32:19,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:19,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-26 20:32:19,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 20:32:19,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:19,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:19,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:19,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:19,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:19,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:32:19,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:19,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:19,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:19,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:19,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:19,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:19,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:19,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:19,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:19,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:19,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:32:19,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:19,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:32:19,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:19,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:19,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:19,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:32:19,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:19,465 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:32:19,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2086752766] [2020-10-26 20:32:19,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:19,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:32:19,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321083333] [2020-10-26 20:32:19,468 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:32:19,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:19,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:32:19,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:32:19,470 INFO L87 Difference]: Start difference. First operand 343 states and 467 transitions. Second operand 7 states. [2020-10-26 20:32:19,644 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-26 20:32:19,929 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-26 20:32:22,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:22,071 INFO L93 Difference]: Finished difference Result 1190 states and 1745 transitions. [2020-10-26 20:32:22,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:32:22,072 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 99 [2020-10-26 20:32:22,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:22,092 INFO L225 Difference]: With dead ends: 1190 [2020-10-26 20:32:22,092 INFO L226 Difference]: Without dead ends: 913 [2020-10-26 20:32:22,094 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:32:22,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2020-10-26 20:32:22,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 905. [2020-10-26 20:32:22,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 905 states. [2020-10-26 20:32:22,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1242 transitions. [2020-10-26 20:32:22,197 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1242 transitions. Word has length 99 [2020-10-26 20:32:22,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:22,197 INFO L481 AbstractCegarLoop]: Abstraction has 905 states and 1242 transitions. [2020-10-26 20:32:22,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:32:22,198 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1242 transitions. [2020-10-26 20:32:22,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-26 20:32:22,203 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:22,204 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2020-10-26 20:32:22,204 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:32:22,204 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:22,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:22,207 INFO L82 PathProgramCache]: Analyzing trace with hash 759852478, now seen corresponding path program 1 times [2020-10-26 20:32:22,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:22,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [972913879] [2020-10-26 20:32:22,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:22,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:22,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:22,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:22,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:23,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:25,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:25,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-26 20:32:25,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:32:25,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2774 [2020-10-26 20:32:25,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:25,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:32:25,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:25,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-26 20:32:25,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:25,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:25,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:25,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:25,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:25,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:25,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:25,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 20:32:25,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:25,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:25,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:25,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:25,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:25,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:25,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:25,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:25,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:25,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:25,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:32:25,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:25,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:32:25,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:25,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:25,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:25,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:32:25,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:25,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:32:25,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:25,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:25,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:25,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:32:25,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:25,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:32:25,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:25,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:25,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:25,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:32:25,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:25,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-26 20:32:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:25,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:25,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:25,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 20:32:25,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:25,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:32:25,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:25,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:25,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-26 20:32:25,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:25,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:25,427 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 33 proven. 14 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 20:32:25,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [972913879] [2020-10-26 20:32:25,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:25,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:32:25,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569109102] [2020-10-26 20:32:25,429 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:32:25,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:25,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:32:25,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:32:25,430 INFO L87 Difference]: Start difference. First operand 905 states and 1242 transitions. Second operand 8 states. [2020-10-26 20:32:27,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:27,198 INFO L93 Difference]: Finished difference Result 1889 states and 2643 transitions. [2020-10-26 20:32:27,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:32:27,199 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 125 [2020-10-26 20:32:27,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:27,206 INFO L225 Difference]: With dead ends: 1889 [2020-10-26 20:32:27,206 INFO L226 Difference]: Without dead ends: 1050 [2020-10-26 20:32:27,209 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:32:27,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2020-10-26 20:32:27,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 1042. [2020-10-26 20:32:27,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1042 states. [2020-10-26 20:32:27,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 1396 transitions. [2020-10-26 20:32:27,258 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 1396 transitions. Word has length 125 [2020-10-26 20:32:27,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:27,258 INFO L481 AbstractCegarLoop]: Abstraction has 1042 states and 1396 transitions. [2020-10-26 20:32:27,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:32:27,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 1396 transitions. [2020-10-26 20:32:27,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-26 20:32:27,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:27,263 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 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] [2020-10-26 20:32:27,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:32:27,263 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:27,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:27,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1266373785, now seen corresponding path program 1 times [2020-10-26 20:32:27,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:27,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1017433371] [2020-10-26 20:32:27,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:27,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:27,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:27,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:27,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:28,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:29,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:29,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 20:32:29,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:32:29,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2050 [2020-10-26 20:32:29,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:29,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:32:29,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:32:29,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-26 20:32:29,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:29,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:29,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:29,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:29,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:29,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:29,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:29,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:32:29,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:29,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:29,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:29,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:29,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:29,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:29,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:29,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:29,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:29,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:32:29,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:29,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:32:29,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:29,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:29,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:29,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:32:29,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:29,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:32:29,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:29,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:29,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:29,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:29,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:32:29,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:29,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-26 20:32:29,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:29,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:29,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:29,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:32:29,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:29,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-26 20:32:29,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:29,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:29,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:29,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 20:32:29,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:29,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-26 20:32:29,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:29,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:29,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:29,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:32:29,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:29,735 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 39 proven. 12 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-26 20:32:29,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1017433371] [2020-10-26 20:32:29,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:29,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:32:29,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837163949] [2020-10-26 20:32:29,737 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:32:29,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:29,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:32:29,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:32:29,738 INFO L87 Difference]: Start difference. First operand 1042 states and 1396 transitions. Second operand 8 states. [2020-10-26 20:32:29,890 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:32:31,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:31,852 INFO L93 Difference]: Finished difference Result 2624 states and 3724 transitions. [2020-10-26 20:32:31,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 20:32:31,853 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 126 [2020-10-26 20:32:31,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:31,865 INFO L225 Difference]: With dead ends: 2624 [2020-10-26 20:32:31,866 INFO L226 Difference]: Without dead ends: 1648 [2020-10-26 20:32:31,869 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-26 20:32:31,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1648 states. [2020-10-26 20:32:31,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1648 to 1465. [2020-10-26 20:32:31,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1465 states. [2020-10-26 20:32:31,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1465 states to 1465 states and 1928 transitions. [2020-10-26 20:32:31,961 INFO L78 Accepts]: Start accepts. Automaton has 1465 states and 1928 transitions. Word has length 126 [2020-10-26 20:32:31,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:31,961 INFO L481 AbstractCegarLoop]: Abstraction has 1465 states and 1928 transitions. [2020-10-26 20:32:31,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:32:31,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1465 states and 1928 transitions. [2020-10-26 20:32:31,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-26 20:32:31,967 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:31,968 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 20:32:31,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:32:31,968 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:31,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:31,969 INFO L82 PathProgramCache]: Analyzing trace with hash -503169389, now seen corresponding path program 1 times [2020-10-26 20:32:31,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:31,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [642526747] [2020-10-26 20:32:31,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:31,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:32,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:32,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:32,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:32,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:34,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:34,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-26 20:32:34,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:32:34,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2488 [2020-10-26 20:32:34,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:34,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:34,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:32:34,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-26 20:32:34,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:34,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:34,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:34,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:34,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:34,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:34,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:34,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:32:34,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:34,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:34,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:34,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:34,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:34,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:34,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:34,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:34,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:34,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:32:34,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:34,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:32:34,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:34,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:34,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:34,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:32:34,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:34,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:32:34,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:34,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:34,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:34,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:32:34,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:34,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-26 20:32:34,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:34,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:34,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:34,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:32:34,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:34,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 20:32:34,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:34,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:34,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:34,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 20:32:34,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:34,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:32:34,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:34,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:34,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-26 20:32:34,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:34,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:34,857 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 44 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-26 20:32:34,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [642526747] [2020-10-26 20:32:34,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:34,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:32:34,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466490422] [2020-10-26 20:32:34,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:32:34,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:34,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:32:34,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:32:34,862 INFO L87 Difference]: Start difference. First operand 1465 states and 1928 transitions. Second operand 7 states. [2020-10-26 20:32:35,013 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-26 20:32:36,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:36,664 INFO L93 Difference]: Finished difference Result 3164 states and 4243 transitions. [2020-10-26 20:32:36,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:32:36,666 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 132 [2020-10-26 20:32:36,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:36,677 INFO L225 Difference]: With dead ends: 3164 [2020-10-26 20:32:36,677 INFO L226 Difference]: Without dead ends: 1765 [2020-10-26 20:32:36,682 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:32:36,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1765 states. [2020-10-26 20:32:36,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1765 to 1479. [2020-10-26 20:32:36,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1479 states. [2020-10-26 20:32:36,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 1927 transitions. [2020-10-26 20:32:36,745 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 1927 transitions. Word has length 132 [2020-10-26 20:32:36,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:36,746 INFO L481 AbstractCegarLoop]: Abstraction has 1479 states and 1927 transitions. [2020-10-26 20:32:36,746 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:32:36,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 1927 transitions. [2020-10-26 20:32:36,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-26 20:32:36,751 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:36,751 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 20:32:36,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:32:36,751 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:36,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:36,752 INFO L82 PathProgramCache]: Analyzing trace with hash -419702030, now seen corresponding path program 1 times [2020-10-26 20:32:36,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:36,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1177516562] [2020-10-26 20:32:36,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:36,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:36,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:36,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:37,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:38,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:38,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:41,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:41,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-26 20:32:41,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-26 20:32:41,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4254 [2020-10-26 20:32:41,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:41,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:32:41,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:41,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-26 20:32:41,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:41,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:41,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:41,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:41,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:41,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:41,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:32:41,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:41,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:41,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:41,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:41,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:41,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:41,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:41,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:41,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:41,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:41,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:32:41,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:41,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-26 20:32:41,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:41,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:41,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:41,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:32:41,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:41,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:32:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:41,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:41,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:41,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:32:41,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:41,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-26 20:32:41,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:41,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:41,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:41,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:32:41,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:41,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-26 20:32:41,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:41,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:41,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:41,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 20:32:41,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:41,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:32:41,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:41,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:41,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-26 20:32:41,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:41,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:41,519 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 43 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 20:32:41,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1177516562] [2020-10-26 20:32:41,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:41,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:32:41,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345128088] [2020-10-26 20:32:41,522 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:32:41,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:41,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:32:41,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:32:41,523 INFO L87 Difference]: Start difference. First operand 1479 states and 1927 transitions. Second operand 8 states. [2020-10-26 20:32:43,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:43,731 INFO L93 Difference]: Finished difference Result 3327 states and 4405 transitions. [2020-10-26 20:32:43,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:32:43,736 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 135 [2020-10-26 20:32:43,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:43,746 INFO L225 Difference]: With dead ends: 3327 [2020-10-26 20:32:43,746 INFO L226 Difference]: Without dead ends: 1914 [2020-10-26 20:32:43,751 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:32:43,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1914 states. [2020-10-26 20:32:43,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1914 to 1904. [2020-10-26 20:32:43,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1904 states. [2020-10-26 20:32:43,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1904 states to 1904 states and 2419 transitions. [2020-10-26 20:32:43,820 INFO L78 Accepts]: Start accepts. Automaton has 1904 states and 2419 transitions. Word has length 135 [2020-10-26 20:32:43,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:43,821 INFO L481 AbstractCegarLoop]: Abstraction has 1904 states and 2419 transitions. [2020-10-26 20:32:43,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:32:43,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1904 states and 2419 transitions. [2020-10-26 20:32:43,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-26 20:32:43,826 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:43,826 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:32:43,827 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:32:43,827 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:43,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:43,827 INFO L82 PathProgramCache]: Analyzing trace with hash -704430783, now seen corresponding path program 1 times [2020-10-26 20:32:43,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:43,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [764579360] [2020-10-26 20:32:43,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:43,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:43,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:44,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:44,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:44,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:45,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:45,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-26 20:32:45,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:32:45,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2010 [2020-10-26 20:32:45,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:45,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:32:45,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:45,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-26 20:32:45,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:46,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:46,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:46,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:46,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:46,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:46,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:32:46,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:46,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:46,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:46,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:46,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:46,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:46,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:46,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:46,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:46,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:32:46,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:46,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-26 20:32:46,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:46,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:46,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:46,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-26 20:32:46,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:46,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:32:46,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:46,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:46,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:46,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 20:32:46,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:46,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-26 20:32:46,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:46,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:46,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:46,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:32:46,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:32:46,429 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 53 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:32:46,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [764579360] [2020-10-26 20:32:46,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:46,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:32:46,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383418689] [2020-10-26 20:32:46,431 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-26 20:32:46,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:46,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-26 20:32:46,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-26 20:32:46,437 INFO L87 Difference]: Start difference. First operand 1904 states and 2419 transitions. Second operand 9 states. [2020-10-26 20:32:46,575 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:32:47,494 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:32:49,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:49,563 INFO L93 Difference]: Finished difference Result 4940 states and 6712 transitions. [2020-10-26 20:32:49,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:32:49,563 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 146 [2020-10-26 20:32:49,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:49,589 INFO L225 Difference]: With dead ends: 4940 [2020-10-26 20:32:49,589 INFO L226 Difference]: Without dead ends: 3102 [2020-10-26 20:32:49,596 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-10-26 20:32:49,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3102 states. [2020-10-26 20:32:49,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3102 to 3028. [2020-10-26 20:32:49,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3028 states. [2020-10-26 20:32:49,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3028 states to 3028 states and 3831 transitions. [2020-10-26 20:32:49,727 INFO L78 Accepts]: Start accepts. Automaton has 3028 states and 3831 transitions. Word has length 146 [2020-10-26 20:32:49,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:49,727 INFO L481 AbstractCegarLoop]: Abstraction has 3028 states and 3831 transitions. [2020-10-26 20:32:49,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-26 20:32:49,727 INFO L276 IsEmpty]: Start isEmpty. Operand 3028 states and 3831 transitions. [2020-10-26 20:32:49,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-26 20:32:49,737 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:49,739 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 20:32:49,739 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:32:49,739 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:49,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:49,740 INFO L82 PathProgramCache]: Analyzing trace with hash -843377218, now seen corresponding path program 1 times [2020-10-26 20:32:49,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:49,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1945942834] [2020-10-26 20:32:49,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:49,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:49,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:50,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:50,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-26 20:32:50,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:50,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 988 [2020-10-26 20:32:50,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:50,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:50,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:32:50,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-26 20:32:50,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:50,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:50,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:50,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:50,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:50,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:50,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:50,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:32:50,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:50,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:50,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:50,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:50,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:50,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:50,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:50,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:50,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:50,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:32:50,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:50,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:32:50,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:50,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:50,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:50,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:32:50,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:50,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:32:50,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:50,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:50,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:50,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:32:50,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:50,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-26 20:32:50,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:50,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:50,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:50,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-26 20:32:50,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:51,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-26 20:32:51,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:51,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:51,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:51,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-26 20:32:51,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:51,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:32:51,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:51,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:51,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-26 20:32:51,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:51,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:51,129 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 83 proven. 33 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-26 20:32:51,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1945942834] [2020-10-26 20:32:51,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:51,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:32:51,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189894584] [2020-10-26 20:32:51,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:32:51,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:51,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:32:51,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:32:51,131 INFO L87 Difference]: Start difference. First operand 3028 states and 3831 transitions. Second operand 8 states. [2020-10-26 20:32:54,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:54,530 INFO L93 Difference]: Finished difference Result 7646 states and 9741 transitions. [2020-10-26 20:32:54,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:32:54,536 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 171 [2020-10-26 20:32:54,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:54,561 INFO L225 Difference]: With dead ends: 7646 [2020-10-26 20:32:54,561 INFO L226 Difference]: Without dead ends: 4704 [2020-10-26 20:32:54,570 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-26 20:32:54,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4704 states. [2020-10-26 20:32:54,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4704 to 4003. [2020-10-26 20:32:54,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4003 states. [2020-10-26 20:32:54,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4003 states to 4003 states and 4961 transitions. [2020-10-26 20:32:54,723 INFO L78 Accepts]: Start accepts. Automaton has 4003 states and 4961 transitions. Word has length 171 [2020-10-26 20:32:54,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:54,723 INFO L481 AbstractCegarLoop]: Abstraction has 4003 states and 4961 transitions. [2020-10-26 20:32:54,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:32:54,723 INFO L276 IsEmpty]: Start isEmpty. Operand 4003 states and 4961 transitions. [2020-10-26 20:32:54,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-26 20:32:54,734 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:54,735 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 20:32:54,735 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:32:54,735 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:54,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:54,736 INFO L82 PathProgramCache]: Analyzing trace with hash 629562495, now seen corresponding path program 1 times [2020-10-26 20:32:54,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:54,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1108174460] [2020-10-26 20:32:54,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:54,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:54,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:54,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:55,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:55,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:57,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:57,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-26 20:32:57,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:32:57,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2327 [2020-10-26 20:32:57,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:57,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-26 20:32:57,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:57,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-26 20:32:57,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:32:57,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:57,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:57,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:57,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:57,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:57,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:57,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:32:57,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:57,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:57,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:57,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:57,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:57,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:57,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:57,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:57,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:57,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:57,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:32:57,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:57,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:32:57,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:57,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:57,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:57,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:32:57,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:57,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:32:57,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:57,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:57,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:57,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:57,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:32:57,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:57,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-26 20:32:57,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:57,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:57,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:57,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-26 20:32:57,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:57,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-26 20:32:57,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:57,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:57,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:57,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-26 20:32:57,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:57,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-26 20:32:57,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:57,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:57,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:57,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-26 20:32:57,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:57,659 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 85 proven. 31 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-26 20:32:57,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1108174460] [2020-10-26 20:32:57,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:57,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:32:57,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419607964] [2020-10-26 20:32:57,660 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:32:57,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:57,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:32:57,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:32:57,663 INFO L87 Difference]: Start difference. First operand 4003 states and 4961 transitions. Second operand 8 states. [2020-10-26 20:32:57,789 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-26 20:32:59,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:59,772 INFO L93 Difference]: Finished difference Result 7972 states and 9936 transitions. [2020-10-26 20:32:59,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:32:59,773 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 174 [2020-10-26 20:32:59,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:59,791 INFO L225 Difference]: With dead ends: 7972 [2020-10-26 20:32:59,792 INFO L226 Difference]: Without dead ends: 4037 [2020-10-26 20:32:59,802 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2020-10-26 20:32:59,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4037 states. [2020-10-26 20:32:59,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4037 to 4011. [2020-10-26 20:32:59,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4011 states. [2020-10-26 20:32:59,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4011 states to 4011 states and 4857 transitions. [2020-10-26 20:32:59,912 INFO L78 Accepts]: Start accepts. Automaton has 4011 states and 4857 transitions. Word has length 174 [2020-10-26 20:32:59,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:59,912 INFO L481 AbstractCegarLoop]: Abstraction has 4011 states and 4857 transitions. [2020-10-26 20:32:59,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:32:59,912 INFO L276 IsEmpty]: Start isEmpty. Operand 4011 states and 4857 transitions. [2020-10-26 20:32:59,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-10-26 20:32:59,922 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:59,923 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 20:32:59,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:32:59,923 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:59,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:59,924 INFO L82 PathProgramCache]: Analyzing trace with hash -263270104, now seen corresponding path program 1 times [2020-10-26 20:32:59,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:59,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [353479881] [2020-10-26 20:32:59,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:59,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:00,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:00,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-10-26 20:33:00,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:00,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 396 [2020-10-26 20:33:00,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:00,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:00,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-26 20:33:00,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-26 20:33:00,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:00,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:00,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:00,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:00,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:00,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:00,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:00,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:33:00,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:00,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:00,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:00,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:00,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:00,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:00,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:00,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:00,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:00,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:33:00,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:00,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-26 20:33:00,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:00,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:00,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:00,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:33:00,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:00,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:33:00,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:00,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:00,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:00,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:33:00,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:00,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-26 20:33:00,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:00,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:00,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:00,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-26 20:33:00,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:00,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-26 20:33:00,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:00,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:00,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:00,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:33:00,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:00,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:33:00,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:00,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:00,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:33:00,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:00,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:00,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 20:33:00,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:00,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:00,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:00,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-26 20:33:00,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:00,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 20:33:00,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:00,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:00,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-26 20:33:00,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:00,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:00,825 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 173 proven. 43 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2020-10-26 20:33:00,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [353479881] [2020-10-26 20:33:00,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:00,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:33:00,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022605790] [2020-10-26 20:33:00,826 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:33:00,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:00,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:33:00,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:00,827 INFO L87 Difference]: Start difference. First operand 4011 states and 4857 transitions. Second operand 7 states. [2020-10-26 20:33:01,229 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:33:03,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:03,014 INFO L93 Difference]: Finished difference Result 7714 states and 9393 transitions. [2020-10-26 20:33:03,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:33:03,014 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 227 [2020-10-26 20:33:03,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:03,031 INFO L225 Difference]: With dead ends: 7714 [2020-10-26 20:33:03,031 INFO L226 Difference]: Without dead ends: 3771 [2020-10-26 20:33:03,039 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:33:03,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3771 states. [2020-10-26 20:33:03,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3771 to 3751. [2020-10-26 20:33:03,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3751 states. [2020-10-26 20:33:03,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3751 states to 3751 states and 4447 transitions. [2020-10-26 20:33:03,145 INFO L78 Accepts]: Start accepts. Automaton has 3751 states and 4447 transitions. Word has length 227 [2020-10-26 20:33:03,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:03,146 INFO L481 AbstractCegarLoop]: Abstraction has 3751 states and 4447 transitions. [2020-10-26 20:33:03,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:33:03,147 INFO L276 IsEmpty]: Start isEmpty. Operand 3751 states and 4447 transitions. [2020-10-26 20:33:03,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-10-26 20:33:03,159 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:03,159 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 20:33:03,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 20:33:03,159 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:03,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:03,160 INFO L82 PathProgramCache]: Analyzing trace with hash 524919260, now seen corresponding path program 1 times [2020-10-26 20:33:03,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:03,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1190073258] [2020-10-26 20:33:03,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:03,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 20:33:03,221 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-26 20:33:03,222 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-26 20:33:03,228 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 20:33:03,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:33:03 BoogieIcfgContainer [2020-10-26 20:33:03,295 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:33:03,300 INFO L168 Benchmark]: Toolchain (without parser) took 60594.10 ms. Allocated memory was 159.4 MB in the beginning and 830.5 MB in the end (delta: 671.1 MB). Free memory was 133.2 MB in the beginning and 716.5 MB in the end (delta: -583.3 MB). Peak memory consumption was 88.9 MB. Max. memory is 8.0 GB. [2020-10-26 20:33:03,303 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 125.8 MB. Free memory was 100.4 MB in the beginning and 100.3 MB in the end (delta: 131.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:33:03,304 INFO L168 Benchmark]: CACSL2BoogieTranslator took 816.72 ms. Allocated memory is still 159.4 MB. Free memory was 132.5 MB in the beginning and 139.1 MB in the end (delta: -6.6 MB). Peak memory consumption was 30.3 MB. Max. memory is 8.0 GB. [2020-10-26 20:33:03,308 INFO L168 Benchmark]: Boogie Preprocessor took 113.77 ms. Allocated memory is still 159.4 MB. Free memory was 139.1 MB in the beginning and 134.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:33:03,309 INFO L168 Benchmark]: RCFGBuilder took 1317.71 ms. Allocated memory is still 159.4 MB. Free memory was 134.4 MB in the beginning and 122.2 MB in the end (delta: 12.2 MB). Peak memory consumption was 51.5 MB. Max. memory is 8.0 GB. [2020-10-26 20:33:03,309 INFO L168 Benchmark]: TraceAbstraction took 58328.70 ms. Allocated memory was 159.4 MB in the beginning and 830.5 MB in the end (delta: 671.1 MB). Free memory was 121.6 MB in the beginning and 716.5 MB in the end (delta: -594.8 MB). Peak memory consumption was 76.3 MB. Max. memory is 8.0 GB. [2020-10-26 20:33:03,316 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 ms. Allocated memory is still 125.8 MB. Free memory was 100.4 MB in the beginning and 100.3 MB in the end (delta: 131.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 816.72 ms. Allocated memory is still 159.4 MB. Free memory was 132.5 MB in the beginning and 139.1 MB in the end (delta: -6.6 MB). Peak memory consumption was 30.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 113.77 ms. Allocated memory is still 159.4 MB. Free memory was 139.1 MB in the beginning and 134.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1317.71 ms. Allocated memory is still 159.4 MB. Free memory was 134.4 MB in the beginning and 122.2 MB in the end (delta: 12.2 MB). Peak memory consumption was 51.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 58328.70 ms. Allocated memory was 159.4 MB in the beginning and 830.5 MB in the end (delta: 671.1 MB). Free memory was 121.6 MB in the beginning and 716.5 MB in the end (delta: -594.8 MB). Peak memory consumption was 76.3 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 d= 4; [L11] int e= 5; [L12] int f= 6; [L13] int c= 3; [L14] int b= 2; [L17] int u = 21; [L18] int v = 22; [L19] int w = 23; [L20] int x = 24; [L21] int y = 25; [L22] int z = 26; [L24] int a17 = 1; [L25] int a7 = 0; [L26] int a20 = 1; [L27] int a8 = 15; [L28] int a12 = 8; [L29] int a16 = 5; [L30] int a21 = 1; [L582] int output = -1; [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L82] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L86] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L94] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L99] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L104] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L110] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L116] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L121] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L126] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L131] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L138] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L142] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L146] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L150] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L154] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L162] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L167] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L175] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L180] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L188] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L191] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L196] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L199] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L205] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L210] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L216] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L220] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L225] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L233] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L240] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L247] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L252] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L258] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L263] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L267] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L270] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L275] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L280] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L288] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L294] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L301] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L308] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L314] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L318] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L320] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L326] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L331] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L335] COND TRUE ((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15))) [L336] a17 = 0 [L337] a16 = 4 [L338] return 21; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L82] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L86] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L94] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L99] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L104] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L110] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L116] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L121] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L126] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L131] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L138] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L142] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L146] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L150] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L154] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L162] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L167] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L175] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L180] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L188] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L191] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L196] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L199] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L205] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L210] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L216] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L220] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L225] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L233] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L240] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L247] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L252] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L258] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L263] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L267] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L270] COND TRUE (((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4)) [L271] a20 = 0 [L272] a17 = 1 [L273] a16 = 6 [L274] return 21; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND TRUE (((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6)) [L65] a17 = 0 [L66] return 26; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L82] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L86] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L94] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L99] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L104] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L110] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L116] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L121] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L126] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L131] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L138] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L142] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L146] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L150] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L154] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L162] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L167] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L175] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L180] COND TRUE ((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8)) [L181] a17 = 0 [L182] a16 = 5 [L183] a21 = 1 [L184] a8 = 14 [L185] a7 = 1 [L186] a20 = 1 [L187] return -1; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L82] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L86] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L94] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L99] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L104] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L110] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L116] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L121] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L126] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L131] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L138] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L142] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L146] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L150] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L154] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L162] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L167] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L175] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L180] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L188] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L191] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L196] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L199] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L205] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L210] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L216] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L220] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L225] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L233] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L240] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L247] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L252] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L258] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L263] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L267] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L270] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L275] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L280] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L288] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L294] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L301] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L308] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L314] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L318] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L320] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L326] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L331] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L335] COND FALSE !(((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15)))) [L339] COND FALSE !((!(a21==1)&&((a20==1)&&(((a12==8)&&((a8==13)&&((((a16==5)&&!(a17==1))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==2))))&&(a7==1))))) [L347] COND FALSE !(((a7==1)&&((a12==8)&&((((a20==1)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||((a16==4)&&!(a17==1))))&&(input==4)))&&(a8==13))&&!(a21==1))))) [L355] COND FALSE !(((a21==1)&&((((!(a7==1)&&((a8==15)&&(!(a20==1)&&(input==4))))&&(a17==1))&&(a16==5))&&(a12==8)))) [L357] COND FALSE !((((!(a7==1)&&((!(a20==1)&&((a21==1)&&((input==3)&&(a17==1))))&&(a8==15)))&&(a12==8))&&(a16==5))) [L363] COND FALSE !(((((!(a17==1)&&(!(a20==1)&&((a8==15)&&((input==1)&&(a16==5)))))&&(a12==8))&&(a21==1))&&!(a7==1))) [L365] COND FALSE !(((((a21==1)&&((a8==15)&&(((a16==5)&&((a12==8)&&(input==1)))&&(a17==1))))&&!(a7==1))&&!(a20==1))) [L367] COND FALSE !(((!(a21==1)&&((a20==1)&&((((a8==13)&&((a7==1)&&(input==5)))&&(a17==1))&&(a12==8))))&&(a16==5))) [L374] COND FALSE !((((!(a7==1)&&((a21==1)&&((((input==6)&&(a20==1))&&(a8==15))&&!(a17==1))))&&(a12==8))&&(a16==4))) [L379] COND FALSE !(((((a20==1)&&(((!(a21==1)&&((a7==1)&&(input==1)))&&(a8==13))&&(a17==1)))&&(a12==8))&&(a16==5))) [L384] COND FALSE !(((a12==8)&&((input==5)&&((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==15))&&(a16==6))&&(a21==1))||(!(a21==1)&&((a16==4)&&(((a20==1)&&((a7==1)&&(a17==1)))&&(a8==13)))))))) [L393] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L396] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L399] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==4))&&(a21==1))) [L402] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==6))&&(a21==1))) [L405] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L408] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==5))&&(a21==1))) [L411] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==5))&&(a21==1))) [L414] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L417] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==4))&&(a21==1))) [L420] COND TRUE ((((((!(a17==1)&&(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==5))&&(a21==1)) [L421] CALL reach_error() [L4] __assert_fail("0", "Problem01_label15.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 58.1s, OverallIterations: 12, TraceHistogramMax: 5, AutomataDifference: 28.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 308 SDtfs, 5125 SDslu, 515 SDs, 0 SdLazy, 11176 SolverSat, 1787 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 225 GetRequests, 96 SyntacticMatches, 3 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 7.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4011occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 11 MinimizatonAttempts, 1318 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 27.0s InterpolantComputationTime, 1768 NumberOfCodeBlocks, 1768 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1508 ConstructedInterpolants, 0 QuantifiedInterpolants, 1260351 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 683/874 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...