/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label56.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 10:08:46,866 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 10:08:46,870 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 10:08:46,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 10:08:46,933 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 10:08:46,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 10:08:46,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 10:08:46,948 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 10:08:46,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 10:08:46,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 10:08:46,961 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 10:08:46,963 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 10:08:46,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 10:08:46,967 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 10:08:46,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 10:08:46,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 10:08:46,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 10:08:46,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 10:08:46,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 10:08:46,994 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 10:08:46,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 10:08:46,999 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 10:08:47,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 10:08:47,004 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 10:08:47,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 10:08:47,028 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 10:08:47,029 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 10:08:47,031 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 10:08:47,032 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 10:08:47,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 10:08:47,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 10:08:47,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 10:08:47,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 10:08:47,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 10:08:47,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 10:08:47,040 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 10:08:47,041 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 10:08:47,041 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 10:08:47,041 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 10:08:47,042 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 10:08:47,043 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 10:08:47,052 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 10:08:47,104 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 10:08:47,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 10:08:47,108 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 10:08:47,109 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 10:08:47,109 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 10:08:47,109 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 10:08:47,110 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 10:08:47,110 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 10:08:47,110 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 10:08:47,110 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 10:08:47,111 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 10:08:47,112 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 10:08:47,112 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 10:08:47,112 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 10:08:47,112 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 10:08:47,112 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 10:08:47,113 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 10:08:47,113 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 10:08:47,113 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 10:08:47,113 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 10:08:47,114 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 10:08:47,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 10:08:47,114 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 10:08:47,114 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 10:08:47,114 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 10:08:47,115 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 10:08:47,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 10:08:47,115 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 10:08:47,115 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 10:08:47,115 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 10:08:47,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 10:08:47,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 10:08:47,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 10:08:47,588 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 10:08:47,588 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 10:08:47,590 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label56.c [2020-10-28 10:08:47,680 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df377b6ee/176e670bcf96413e9eefade7e8accc99/FLAGf9df0879d [2020-10-28 10:08:48,378 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 10:08:48,379 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label56.c [2020-10-28 10:08:48,415 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df377b6ee/176e670bcf96413e9eefade7e8accc99/FLAGf9df0879d [2020-10-28 10:08:48,644 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df377b6ee/176e670bcf96413e9eefade7e8accc99 [2020-10-28 10:08:48,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 10:08:48,655 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 10:08:48,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 10:08:48,660 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 10:08:48,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 10:08:48,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:08:48" (1/1) ... [2020-10-28 10:08:48,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24a12090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:08:48, skipping insertion in model container [2020-10-28 10:08:48,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:08:48" (1/1) ... [2020-10-28 10:08:48,682 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 10:08:48,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 10:08:49,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 10:08:49,164 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 10:08:49,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 10:08:49,333 INFO L208 MainTranslator]: Completed translation [2020-10-28 10:08:49,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:08:49 WrapperNode [2020-10-28 10:08:49,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 10:08:49,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 10:08:49,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 10:08:49,335 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 10:08:49,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:08:49" (1/1) ... [2020-10-28 10:08:49,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:08:49" (1/1) ... [2020-10-28 10:08:49,372 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:08:49" (1/1) ... [2020-10-28 10:08:49,372 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:08:49" (1/1) ... [2020-10-28 10:08:49,419 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:08:49" (1/1) ... [2020-10-28 10:08:49,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:08:49" (1/1) ... [2020-10-28 10:08:49,459 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:08:49" (1/1) ... [2020-10-28 10:08:49,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 10:08:49,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 10:08:49,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 10:08:49,472 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 10:08:49,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:08:49" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 10:08:49,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 10:08:49,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 10:08:49,557 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 10:08:49,558 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 10:08:49,558 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 10:08:49,559 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 10:08:49,559 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 10:08:49,559 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 10:08:49,560 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 10:08:49,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 10:08:49,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 10:08:49,561 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 10:08:49,561 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 10:08:49,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 10:08:49,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 10:08:49,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 10:08:49,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 10:08:49,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 10:08:49,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 10:08:50,982 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 10:08:50,983 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 10:08:50,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:08:50 BoogieIcfgContainer [2020-10-28 10:08:50,985 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 10:08:50,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 10:08:50,988 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 10:08:50,992 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 10:08:50,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 10:08:48" (1/3) ... [2020-10-28 10:08:50,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe786c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:08:50, skipping insertion in model container [2020-10-28 10:08:50,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:08:49" (2/3) ... [2020-10-28 10:08:50,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe786c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:08:50, skipping insertion in model container [2020-10-28 10:08:50,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:08:50" (3/3) ... [2020-10-28 10:08:50,996 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label56.c [2020-10-28 10:08:51,009 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 10:08:51,015 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 10:08:51,030 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 10:08:51,061 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 10:08:51,061 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 10:08:51,061 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 10:08:51,062 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 10:08:51,062 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 10:08:51,062 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 10:08:51,062 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 10:08:51,062 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 10:08:51,088 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-28 10:08:51,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-28 10:08:51,099 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:08:51,100 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] [2020-10-28 10:08:51,100 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:08:51,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:08:51,107 INFO L82 PathProgramCache]: Analyzing trace with hash -2114012957, now seen corresponding path program 1 times [2020-10-28 10:08:51,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:08:51,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2119737366] [2020-10-28 10:08:51,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:08:51,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:51,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:51,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:53,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:53,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-28 10:08:53,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:08:53,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2227 [2020-10-28 10:08:53,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:53,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:53,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:08:53,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 10:08:53,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-28 10:08:53,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 10:08:53,887 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-28 10:08:53,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:08:53,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:53,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:53,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:53,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:08:53,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:53,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-28 10:08:53,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:53,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:53,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:08:53,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:53,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 10:08:53,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:54,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:08:54,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2119737366] [2020-10-28 10:08:54,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 10:08:54,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 10:08:54,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959682163] [2020-10-28 10:08:54,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 10:08:54,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:08:54,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 10:08:54,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 10:08:54,044 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 4 states. [2020-10-28 10:08:54,214 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-28 10:08:56,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:08:56,071 INFO L93 Difference]: Finished difference Result 562 states and 962 transitions. [2020-10-28 10:08:56,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:08:56,073 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 83 [2020-10-28 10:08:56,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:08:56,089 INFO L225 Difference]: With dead ends: 562 [2020-10-28 10:08:56,089 INFO L226 Difference]: Without dead ends: 287 [2020-10-28 10:08:56,097 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:08:56,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-28 10:08:56,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 281. [2020-10-28 10:08:56,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-28 10:08:56,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 397 transitions. [2020-10-28 10:08:56,185 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 397 transitions. Word has length 83 [2020-10-28 10:08:56,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:08:56,186 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 397 transitions. [2020-10-28 10:08:56,186 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 10:08:56,188 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 397 transitions. [2020-10-28 10:08:56,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-28 10:08:56,197 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:08:56,198 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:08:56,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 10:08:56,198 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:08:56,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:08:56,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1213447394, now seen corresponding path program 1 times [2020-10-28 10:08:56,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:08:56,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1567361581] [2020-10-28 10:08:56,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:08:56,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:56,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:56,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:56,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:58,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:58,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-28 10:08:58,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 10:08:58,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2614 [2020-10-28 10:08:58,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:58,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:58,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:08:58,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 10:08:58,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-28 10:08:58,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 10:08:59,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:08:59,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:59,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:59,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:59,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:08:59,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:59,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 10:08:59,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:59,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:59,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:08:59,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:59,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:08:59,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:59,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:08:59,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:59,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:59,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:59,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 10:08:59,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:59,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 10:08:59,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:59,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:59,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:08:59,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:59,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 10:08:59,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:59,131 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:08:59,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1567361581] [2020-10-28 10:08:59,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:08:59,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:08:59,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56283653] [2020-10-28 10:08:59,134 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:08:59,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:08:59,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:08:59,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:08:59,135 INFO L87 Difference]: Start difference. First operand 281 states and 397 transitions. Second operand 5 states. [2020-10-28 10:09:00,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:09:00,584 INFO L93 Difference]: Finished difference Result 836 states and 1208 transitions. [2020-10-28 10:09:00,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:09:00,586 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 92 [2020-10-28 10:09:00,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:09:00,592 INFO L225 Difference]: With dead ends: 836 [2020-10-28 10:09:00,593 INFO L226 Difference]: Without dead ends: 561 [2020-10-28 10:09:00,595 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:09:00,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2020-10-28 10:09:00,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 555. [2020-10-28 10:09:00,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2020-10-28 10:09:00,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 760 transitions. [2020-10-28 10:09:00,653 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 760 transitions. Word has length 92 [2020-10-28 10:09:00,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:09:00,653 INFO L481 AbstractCegarLoop]: Abstraction has 555 states and 760 transitions. [2020-10-28 10:09:00,653 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:09:00,654 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 760 transitions. [2020-10-28 10:09:00,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-28 10:09:00,658 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:09:00,659 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:09:00,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 10:09:00,659 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:09:00,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:09:00,660 INFO L82 PathProgramCache]: Analyzing trace with hash 827002994, now seen corresponding path program 1 times [2020-10-28 10:09:00,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:09:00,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1502633585] [2020-10-28 10:09:00,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:09:00,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:00,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:00,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:01,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:01,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-28 10:09:01,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:09:01,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 919 [2020-10-28 10:09:01,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:01,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:01,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:09:01,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-28 10:09:01,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-28 10:09:01,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:09:01,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:09:01,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:01,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:01,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:01,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:09:01,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:01,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 10:09:01,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:01,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:01,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:01,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:01,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:01,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:09:01,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:09:01,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:01,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:01,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:01,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 10:09:01,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:01,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 10:09:01,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:01,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:01,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:09:01,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:01,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 10:09:01,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:09:01,919 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:09:01,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1502633585] [2020-10-28 10:09:01,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:09:01,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:09:01,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276256414] [2020-10-28 10:09:01,923 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:09:01,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:09:01,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:09:01,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:09:01,927 INFO L87 Difference]: Start difference. First operand 555 states and 760 transitions. Second operand 5 states. [2020-10-28 10:09:03,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:09:03,408 INFO L93 Difference]: Finished difference Result 1652 states and 2305 transitions. [2020-10-28 10:09:03,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:09:03,409 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 100 [2020-10-28 10:09:03,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:09:03,420 INFO L225 Difference]: With dead ends: 1652 [2020-10-28 10:09:03,420 INFO L226 Difference]: Without dead ends: 1103 [2020-10-28 10:09:03,422 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:09:03,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2020-10-28 10:09:03,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 1103. [2020-10-28 10:09:03,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1103 states. [2020-10-28 10:09:03,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1412 transitions. [2020-10-28 10:09:03,480 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1412 transitions. Word has length 100 [2020-10-28 10:09:03,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:09:03,481 INFO L481 AbstractCegarLoop]: Abstraction has 1103 states and 1412 transitions. [2020-10-28 10:09:03,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:09:03,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1412 transitions. [2020-10-28 10:09:03,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-28 10:09:03,489 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:09:03,489 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:09:03,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 10:09:03,490 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:09:03,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:09:03,490 INFO L82 PathProgramCache]: Analyzing trace with hash 843515611, now seen corresponding path program 1 times [2020-10-28 10:09:03,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:09:03,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1879883882] [2020-10-28 10:09:03,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:09:03,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:03,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:03,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:03,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:07,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:07,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:08,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:08,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-28 10:09:08,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 10:09:08,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-28 10:09:08,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:08,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:08,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:09:08,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-28 10:09:08,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-28 10:09:08,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:08,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:09:08,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:08,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:08,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:08,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:09:08,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:08,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 10:09:08,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:08,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:08,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:08,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:08,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:08,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:09:08,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:09:08,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:08,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:08,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:08,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 10:09:08,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:08,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 10:09:08,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:08,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:08,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:09:08,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:08,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 10:09:08,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:09:08,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 10:09:08,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:08,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:08,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:08,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:08,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-28 10:09:08,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:09:08,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-28 10:09:08,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:08,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:08,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:09:08,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:08,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 10:09:08,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:09:08,938 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-28 10:09:08,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1879883882] [2020-10-28 10:09:08,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:09:08,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:09:08,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99619614] [2020-10-28 10:09:08,941 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:09:08,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:09:08,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:09:08,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:09:08,942 INFO L87 Difference]: Start difference. First operand 1103 states and 1412 transitions. Second operand 5 states. [2020-10-28 10:09:09,231 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-28 10:09:10,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:09:10,575 INFO L93 Difference]: Finished difference Result 2613 states and 3425 transitions. [2020-10-28 10:09:10,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:09:10,576 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 117 [2020-10-28 10:09:10,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:09:10,587 INFO L225 Difference]: With dead ends: 2613 [2020-10-28 10:09:10,587 INFO L226 Difference]: Without dead ends: 1651 [2020-10-28 10:09:10,590 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:09:10,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1651 states. [2020-10-28 10:09:10,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1651 to 1379. [2020-10-28 10:09:10,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1379 states. [2020-10-28 10:09:10,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 1683 transitions. [2020-10-28 10:09:10,651 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 1683 transitions. Word has length 117 [2020-10-28 10:09:10,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:09:10,652 INFO L481 AbstractCegarLoop]: Abstraction has 1379 states and 1683 transitions. [2020-10-28 10:09:10,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:09:10,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 1683 transitions. [2020-10-28 10:09:10,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-28 10:09:10,658 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:09:10,658 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 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] [2020-10-28 10:09:10,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 10:09:10,658 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:09:10,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:09:10,659 INFO L82 PathProgramCache]: Analyzing trace with hash 72881693, now seen corresponding path program 1 times [2020-10-28 10:09:10,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:09:10,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [291923859] [2020-10-28 10:09:10,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:09:10,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:10,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:10,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:11,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:11,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-28 10:09:11,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:09:11,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 840 [2020-10-28 10:09:11,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:11,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:11,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:09:11,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 10:09:11,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 10:09:11,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:11,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:09:11,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:11,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:11,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:11,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:09:11,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:11,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 10:09:11,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:11,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:11,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:11,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:11,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:11,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:09:11,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:09:11,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:11,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:11,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:11,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 10:09:11,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:11,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 10:09:11,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:11,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:11,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:09:11,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:11,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 10:09:11,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:11,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 10:09:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:11,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:11,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:11,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 10:09:11,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:11,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 10:09:11,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:11,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:11,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:09:11,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:09:11,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 10:09:11,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:11,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-28 10:09:11,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:11,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:11,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:11,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-28 10:09:11,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:11,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 10:09:11,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:11,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:11,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:11,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 10:09:11,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:11,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:11,884 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 66 proven. 14 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-28 10:09:11,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [291923859] [2020-10-28 10:09:11,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:09:11,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:09:11,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199976894] [2020-10-28 10:09:11,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:09:11,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:09:11,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:09:11,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:09:11,887 INFO L87 Difference]: Start difference. First operand 1379 states and 1683 transitions. Second operand 7 states. [2020-10-28 10:09:13,797 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-28 10:09:13,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:09:13,836 INFO L93 Difference]: Finished difference Result 3608 states and 4556 transitions. [2020-10-28 10:09:13,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 10:09:13,837 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 149 [2020-10-28 10:09:13,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:09:13,851 INFO L225 Difference]: With dead ends: 3608 [2020-10-28 10:09:13,852 INFO L226 Difference]: Without dead ends: 2096 [2020-10-28 10:09:13,857 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 10:09:13,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2096 states. [2020-10-28 10:09:13,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2096 to 1949. [2020-10-28 10:09:13,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1949 states. [2020-10-28 10:09:13,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1949 states to 1949 states and 2402 transitions. [2020-10-28 10:09:13,953 INFO L78 Accepts]: Start accepts. Automaton has 1949 states and 2402 transitions. Word has length 149 [2020-10-28 10:09:13,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:09:13,954 INFO L481 AbstractCegarLoop]: Abstraction has 1949 states and 2402 transitions. [2020-10-28 10:09:13,954 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:09:13,954 INFO L276 IsEmpty]: Start isEmpty. Operand 1949 states and 2402 transitions. [2020-10-28 10:09:13,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-28 10:09:13,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:09:13,965 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:09:13,965 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 10:09:13,966 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:09:13,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:09:13,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1012723219, now seen corresponding path program 1 times [2020-10-28 10:09:13,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:09:13,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [737617914] [2020-10-28 10:09:13,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:09:13,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:14,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:14,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:14,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:15,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:15,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:16,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:16,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-28 10:09:16,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 10:09:16,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2972 [2020-10-28 10:09:16,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:16,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:16,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:09:16,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-28 10:09:16,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-28 10:09:16,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:17,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:09:17,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:17,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:17,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:17,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:09:17,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:17,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 10:09:17,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:17,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:17,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:17,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:17,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:17,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:17,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:09:17,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:17,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:17,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:17,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 10:09:17,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:17,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 10:09:17,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:17,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:17,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:09:17,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:17,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 10:09:17,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:17,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 10:09:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:17,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:17,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:17,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:17,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-28 10:09:17,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:09:17,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-28 10:09:17,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:17,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:17,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:09:17,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:09:17,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 10:09:17,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:09:17,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 10:09:17,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:17,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:17,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:17,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-28 10:09:17,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:17,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-28 10:09:17,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:17,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:17,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:09:17,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:09:17,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-28 10:09:17,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 10:09:17,540 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 79 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-28 10:09:17,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [737617914] [2020-10-28 10:09:17,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:09:17,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:09:17,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936183210] [2020-10-28 10:09:17,542 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:09:17,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:09:17,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:09:17,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:09:17,544 INFO L87 Difference]: Start difference. First operand 1949 states and 2402 transitions. Second operand 7 states. [2020-10-28 10:09:17,692 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-28 10:09:19,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:09:19,101 INFO L93 Difference]: Finished difference Result 4226 states and 5329 transitions. [2020-10-28 10:09:19,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 10:09:19,102 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 155 [2020-10-28 10:09:19,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:09:19,115 INFO L225 Difference]: With dead ends: 4226 [2020-10-28 10:09:19,115 INFO L226 Difference]: Without dead ends: 1995 [2020-10-28 10:09:19,123 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-28 10:09:19,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1995 states. [2020-10-28 10:09:19,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1995 to 1683. [2020-10-28 10:09:19,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1683 states. [2020-10-28 10:09:19,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 1931 transitions. [2020-10-28 10:09:19,195 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 1931 transitions. Word has length 155 [2020-10-28 10:09:19,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:09:19,196 INFO L481 AbstractCegarLoop]: Abstraction has 1683 states and 1931 transitions. [2020-10-28 10:09:19,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:09:19,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 1931 transitions. [2020-10-28 10:09:19,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-28 10:09:19,202 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:09:19,202 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1] [2020-10-28 10:09:19,202 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 10:09:19,203 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:09:19,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:09:19,203 INFO L82 PathProgramCache]: Analyzing trace with hash -291408278, now seen corresponding path program 1 times [2020-10-28 10:09:19,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:09:19,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1207065856] [2020-10-28 10:09:19,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:09:19,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:19,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:19,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:20,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:20,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-28 10:09:20,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:09:20,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1463 [2020-10-28 10:09:20,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:20,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:20,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:09:20,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 10:09:20,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 10:09:20,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:09:20,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:09:20,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:20,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:20,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:20,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:09:20,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:20,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 10:09:20,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:20,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:20,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:09:20,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:20,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 10:09:20,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:09:20,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:09:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:20,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:20,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:20,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-28 10:09:20,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:20,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-28 10:09:20,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:20,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:20,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:09:20,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:09:20,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-28 10:09:20,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:09:21,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 10:09:21,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:21,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:21,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:21,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 10:09:21,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:21,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 10:09:21,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:21,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:21,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:21,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 10:09:21,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:21,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:09:21,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-28 10:09:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:21,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:21,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:21,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-28 10:09:21,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:21,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 10:09:21,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:21,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:21,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:21,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 10:09:21,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:21,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:21,249 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 82 proven. 38 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-28 10:09:21,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1207065856] [2020-10-28 10:09:21,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:09:21,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:09:21,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327021756] [2020-10-28 10:09:21,252 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:09:21,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:09:21,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:09:21,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:09:21,254 INFO L87 Difference]: Start difference. First operand 1683 states and 1931 transitions. Second operand 7 states. [2020-10-28 10:09:21,392 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-28 10:09:22,042 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-28 10:09:22,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:09:22,842 INFO L93 Difference]: Finished difference Result 3648 states and 4198 transitions. [2020-10-28 10:09:22,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 10:09:22,842 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 174 [2020-10-28 10:09:22,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:09:22,853 INFO L225 Difference]: With dead ends: 3648 [2020-10-28 10:09:22,854 INFO L226 Difference]: Without dead ends: 1971 [2020-10-28 10:09:22,859 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 10:09:22,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1971 states. [2020-10-28 10:09:22,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1971 to 1832. [2020-10-28 10:09:22,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1832 states. [2020-10-28 10:09:22,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1832 states to 1832 states and 2082 transitions. [2020-10-28 10:09:22,951 INFO L78 Accepts]: Start accepts. Automaton has 1832 states and 2082 transitions. Word has length 174 [2020-10-28 10:09:22,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:09:22,951 INFO L481 AbstractCegarLoop]: Abstraction has 1832 states and 2082 transitions. [2020-10-28 10:09:22,951 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:09:22,951 INFO L276 IsEmpty]: Start isEmpty. Operand 1832 states and 2082 transitions. [2020-10-28 10:09:22,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-28 10:09:22,957 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:09:22,957 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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, 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, 1, 1, 1] [2020-10-28 10:09:22,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 10:09:22,958 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:09:22,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:09:22,958 INFO L82 PathProgramCache]: Analyzing trace with hash -765289208, now seen corresponding path program 1 times [2020-10-28 10:09:22,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:09:22,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1761511882] [2020-10-28 10:09:22,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:09:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:23,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:23,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:24,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:24,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-10-28 10:09:24,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:09:24,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1215 [2020-10-28 10:09:24,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:24,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:24,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:09:24,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 10:09:24,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-28 10:09:24,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:24,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:09:24,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:24,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:24,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:24,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:09:24,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:24,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 10:09:24,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:24,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:24,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:24,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:24,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:24,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:24,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:09:24,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:24,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:24,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:24,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 10:09:24,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:24,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 10:09:24,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:24,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:24,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:09:24,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:24,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 10:09:24,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:24,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 10:09:24,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:24,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:24,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:24,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-28 10:09:24,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:24,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-28 10:09:24,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:24,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:24,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:09:24,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:09:24,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-28 10:09:24,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:24,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-28 10:09:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:24,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:24,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:24,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 10:09:24,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:24,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 10:09:24,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:24,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:24,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:24,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 10:09:24,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:24,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:24,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 10:09:24,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:24,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:24,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:24,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-28 10:09:24,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:24,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 10:09:24,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:24,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:24,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:24,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 10:09:24,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:24,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:24,644 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 100 proven. 44 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-28 10:09:24,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1761511882] [2020-10-28 10:09:24,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:09:24,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:09:24,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498569580] [2020-10-28 10:09:24,646 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:09:24,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:09:24,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:09:24,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:09:24,647 INFO L87 Difference]: Start difference. First operand 1832 states and 2082 transitions. Second operand 7 states. [2020-10-28 10:09:26,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:09:26,202 INFO L93 Difference]: Finished difference Result 3527 states and 4023 transitions. [2020-10-28 10:09:26,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 10:09:26,204 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 182 [2020-10-28 10:09:26,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:09:26,214 INFO L225 Difference]: With dead ends: 3527 [2020-10-28 10:09:26,214 INFO L226 Difference]: Without dead ends: 1836 [2020-10-28 10:09:26,219 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-28 10:09:26,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2020-10-28 10:09:26,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 1832. [2020-10-28 10:09:26,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1832 states. [2020-10-28 10:09:26,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1832 states to 1832 states and 2065 transitions. [2020-10-28 10:09:26,283 INFO L78 Accepts]: Start accepts. Automaton has 1832 states and 2065 transitions. Word has length 182 [2020-10-28 10:09:26,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:09:26,283 INFO L481 AbstractCegarLoop]: Abstraction has 1832 states and 2065 transitions. [2020-10-28 10:09:26,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:09:26,283 INFO L276 IsEmpty]: Start isEmpty. Operand 1832 states and 2065 transitions. [2020-10-28 10:09:26,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-28 10:09:26,289 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:09:26,290 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-28 10:09:26,290 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 10:09:26,290 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:09:26,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:09:26,291 INFO L82 PathProgramCache]: Analyzing trace with hash -856008127, now seen corresponding path program 1 times [2020-10-28 10:09:26,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:09:26,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2137984798] [2020-10-28 10:09:26,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:09:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:26,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:26,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:26,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-10-28 10:09:26,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:26,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 367 [2020-10-28 10:09:26,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:26,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:26,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:09:26,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-28 10:09:26,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-28 10:09:26,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:26,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:09:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:26,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:26,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:26,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:09:26,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:26,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 10:09:26,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:26,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:26,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:26,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:26,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:26,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:26,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:09:26,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:26,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:26,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:26,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 10:09:26,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:26,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 10:09:26,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:26,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:26,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:26,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:26,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:26,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:26,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 10:09:26,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:26,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:26,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:26,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-28 10:09:26,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:26,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 10:09:26,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:26,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:26,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:26,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:26,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:26,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:26,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 10:09:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:27,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:27,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:27,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-28 10:09:27,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:27,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-28 10:09:27,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:27,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:27,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:09:27,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:27,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 10:09:27,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:27,149 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 110 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-28 10:09:27,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2137984798] [2020-10-28 10:09:27,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:09:27,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 10:09:27,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331059869] [2020-10-28 10:09:27,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 10:09:27,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:09:27,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 10:09:27,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:09:27,156 INFO L87 Difference]: Start difference. First operand 1832 states and 2065 transitions. Second operand 6 states. [2020-10-28 10:09:29,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:09:29,295 INFO L93 Difference]: Finished difference Result 4343 states and 4924 transitions. [2020-10-28 10:09:29,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 10:09:29,296 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 199 [2020-10-28 10:09:29,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:09:29,309 INFO L225 Difference]: With dead ends: 4343 [2020-10-28 10:09:29,309 INFO L226 Difference]: Without dead ends: 2370 [2020-10-28 10:09:29,316 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-28 10:09:29,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2370 states. [2020-10-28 10:09:29,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2370 to 1828. [2020-10-28 10:09:29,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1828 states. [2020-10-28 10:09:29,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1828 states to 1828 states and 2041 transitions. [2020-10-28 10:09:29,391 INFO L78 Accepts]: Start accepts. Automaton has 1828 states and 2041 transitions. Word has length 199 [2020-10-28 10:09:29,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:09:29,392 INFO L481 AbstractCegarLoop]: Abstraction has 1828 states and 2041 transitions. [2020-10-28 10:09:29,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 10:09:29,392 INFO L276 IsEmpty]: Start isEmpty. Operand 1828 states and 2041 transitions. [2020-10-28 10:09:29,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-10-28 10:09:29,399 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:09:29,399 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 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, 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] [2020-10-28 10:09:29,400 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 10:09:29,400 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:09:29,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:09:29,400 INFO L82 PathProgramCache]: Analyzing trace with hash 968371403, now seen corresponding path program 1 times [2020-10-28 10:09:29,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:09:29,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [630920277] [2020-10-28 10:09:29,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:09:29,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:29,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:29,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:29,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-10-28 10:09:29,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:29,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 353 [2020-10-28 10:09:29,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:29,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:29,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:09:29,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-28 10:09:29,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 10:09:29,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:29,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:09:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:29,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:29,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:29,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:09:29,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:29,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 10:09:29,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:29,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:29,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:29,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:29,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:29,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:29,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:09:29,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:29,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:29,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:30,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 10:09:30,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:30,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 10:09:30,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:30,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:30,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:30,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:30,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:30,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:30,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-28 10:09:30,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:30,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:30,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:30,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-28 10:09:30,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:30,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 10:09:30,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:30,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:30,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:09:30,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:30,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-28 10:09:30,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:30,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-28 10:09:30,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:30,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:30,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:30,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 10:09:30,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:30,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 10:09:30,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:30,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:30,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:09:30,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:09:30,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 10:09:30,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:30,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-28 10:09:30,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:30,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:30,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:30,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-28 10:09:30,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:30,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 10:09:30,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:30,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:30,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:30,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 10:09:30,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:30,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:30,258 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 157 proven. 14 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2020-10-28 10:09:30,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [630920277] [2020-10-28 10:09:30,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:09:30,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:09:30,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444744564] [2020-10-28 10:09:30,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:09:30,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:09:30,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:09:30,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:09:30,260 INFO L87 Difference]: Start difference. First operand 1828 states and 2041 transitions. Second operand 7 states. [2020-10-28 10:09:30,807 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-28 10:09:32,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:09:32,119 INFO L93 Difference]: Finished difference Result 4085 states and 4660 transitions. [2020-10-28 10:09:32,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 10:09:32,120 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 215 [2020-10-28 10:09:32,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:09:32,130 INFO L225 Difference]: With dead ends: 4085 [2020-10-28 10:09:32,131 INFO L226 Difference]: Without dead ends: 2118 [2020-10-28 10:09:32,137 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-28 10:09:32,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2118 states. [2020-10-28 10:09:32,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2118 to 2094. [2020-10-28 10:09:32,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2094 states. [2020-10-28 10:09:32,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2094 states to 2094 states and 2312 transitions. [2020-10-28 10:09:32,207 INFO L78 Accepts]: Start accepts. Automaton has 2094 states and 2312 transitions. Word has length 215 [2020-10-28 10:09:32,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:09:32,207 INFO L481 AbstractCegarLoop]: Abstraction has 2094 states and 2312 transitions. [2020-10-28 10:09:32,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:09:32,207 INFO L276 IsEmpty]: Start isEmpty. Operand 2094 states and 2312 transitions. [2020-10-28 10:09:32,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-10-28 10:09:32,215 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:09:32,215 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 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, 4, 4, 4, 4, 4, 3, 3, 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] [2020-10-28 10:09:32,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 10:09:32,216 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:09:32,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:09:32,216 INFO L82 PathProgramCache]: Analyzing trace with hash 750174607, now seen corresponding path program 1 times [2020-10-28 10:09:32,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:09:32,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977981694] [2020-10-28 10:09:32,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:09:32,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:32,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:32,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:33,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:33,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-28 10:09:33,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:09:33,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1288 [2020-10-28 10:09:33,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:33,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:33,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:09:33,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-28 10:09:33,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-28 10:09:33,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:33,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:09:33,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:33,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:33,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:33,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:09:33,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:33,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 10:09:33,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:33,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:33,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:33,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:33,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:33,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:33,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:09:33,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:33,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:33,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:33,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 10:09:33,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:33,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-28 10:09:33,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:33,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:33,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:09:33,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:33,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-28 10:09:33,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:33,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-28 10:09:33,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:33,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:33,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:33,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-28 10:09:33,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:33,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-28 10:09:33,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:33,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:33,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:09:33,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:09:33,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-28 10:09:33,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:33,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-28 10:09:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:33,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:33,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:33,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 10:09:33,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:33,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 10:09:33,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:33,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:33,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:33,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 10:09:33,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:33,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:33,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-28 10:09:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:33,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:33,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:33,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-28 10:09:33,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:33,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 10:09:33,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:33,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:33,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:33,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 10:09:33,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:33,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:34,038 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 184 proven. 54 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-28 10:09:34,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1977981694] [2020-10-28 10:09:34,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:09:34,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:09:34,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824185968] [2020-10-28 10:09:34,040 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:09:34,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:09:34,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:09:34,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:09:34,040 INFO L87 Difference]: Start difference. First operand 2094 states and 2312 transitions. Second operand 7 states. [2020-10-28 10:09:35,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:09:35,889 INFO L93 Difference]: Finished difference Result 4198 states and 4653 transitions. [2020-10-28 10:09:35,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 10:09:35,891 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 233 [2020-10-28 10:09:35,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:09:35,900 INFO L225 Difference]: With dead ends: 4198 [2020-10-28 10:09:35,900 INFO L226 Difference]: Without dead ends: 2245 [2020-10-28 10:09:35,905 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 10:09:35,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2245 states. [2020-10-28 10:09:35,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2245 to 2096. [2020-10-28 10:09:35,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2096 states. [2020-10-28 10:09:35,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2096 states to 2096 states and 2281 transitions. [2020-10-28 10:09:35,968 INFO L78 Accepts]: Start accepts. Automaton has 2096 states and 2281 transitions. Word has length 233 [2020-10-28 10:09:35,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:09:35,968 INFO L481 AbstractCegarLoop]: Abstraction has 2096 states and 2281 transitions. [2020-10-28 10:09:35,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:09:35,968 INFO L276 IsEmpty]: Start isEmpty. Operand 2096 states and 2281 transitions. [2020-10-28 10:09:35,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-10-28 10:09:35,976 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:09:35,976 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-28 10:09:35,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 10:09:35,977 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:09:35,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:09:35,977 INFO L82 PathProgramCache]: Analyzing trace with hash -97043645, now seen corresponding path program 1 times [2020-10-28 10:09:35,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:09:35,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [958045693] [2020-10-28 10:09:35,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:09:36,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:36,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:36,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:36,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 273 [2020-10-28 10:09:36,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:36,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 407 [2020-10-28 10:09:36,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:36,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:36,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:09:36,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-28 10:09:36,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 10:09:36,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:36,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:09:36,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:36,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:36,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:36,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:09:36,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:36,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 10:09:36,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:36,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:36,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:36,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:36,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:36,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:36,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:09:36,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:36,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:36,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:36,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-28 10:09:36,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:36,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 10:09:36,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:36,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:36,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:36,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:36,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:36,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:36,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-28 10:09:36,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:36,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:36,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:36,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-28 10:09:36,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:36,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-28 10:09:36,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:36,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:36,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:09:36,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:36,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-28 10:09:36,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:36,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-28 10:09:36,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:36,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:36,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:36,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 10:09:36,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:36,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 10:09:36,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:36,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:36,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:09:36,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:09:36,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 10:09:36,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:36,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-28 10:09:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:36,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:36,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:36,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-28 10:09:36,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:36,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 10:09:36,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:36,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:36,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:36,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 10:09:36,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:36,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:36,977 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 197 proven. 14 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2020-10-28 10:09:36,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [958045693] [2020-10-28 10:09:36,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:09:36,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:09:36,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841943040] [2020-10-28 10:09:36,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:09:36,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:09:36,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:09:36,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:09:36,979 INFO L87 Difference]: Start difference. First operand 2096 states and 2281 transitions. Second operand 7 states. [2020-10-28 10:09:38,010 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-28 10:09:38,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:09:38,823 INFO L93 Difference]: Finished difference Result 4200 states and 4586 transitions. [2020-10-28 10:09:38,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 10:09:38,823 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 255 [2020-10-28 10:09:38,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:09:38,835 INFO L225 Difference]: With dead ends: 4200 [2020-10-28 10:09:38,835 INFO L226 Difference]: Without dead ends: 2245 [2020-10-28 10:09:38,840 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 10:09:38,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2245 states. [2020-10-28 10:09:38,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2245 to 2239. [2020-10-28 10:09:38,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2239 states. [2020-10-28 10:09:38,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2239 states to 2239 states and 2434 transitions. [2020-10-28 10:09:38,906 INFO L78 Accepts]: Start accepts. Automaton has 2239 states and 2434 transitions. Word has length 255 [2020-10-28 10:09:38,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:09:38,907 INFO L481 AbstractCegarLoop]: Abstraction has 2239 states and 2434 transitions. [2020-10-28 10:09:38,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:09:38,907 INFO L276 IsEmpty]: Start isEmpty. Operand 2239 states and 2434 transitions. [2020-10-28 10:09:38,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-10-28 10:09:38,915 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:09:38,915 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 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] [2020-10-28 10:09:38,915 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 10:09:38,916 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:09:38,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:09:38,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1537510982, now seen corresponding path program 1 times [2020-10-28 10:09:38,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:09:38,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [515562964] [2020-10-28 10:09:38,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:09:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 10:09:38,985 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 10:09:38,986 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 10:09:38,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 10:09:39,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 10:09:39 BoogieIcfgContainer [2020-10-28 10:09:39,040 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 10:09:39,041 INFO L168 Benchmark]: Toolchain (without parser) took 50392.41 ms. Allocated memory was 153.1 MB in the beginning and 814.7 MB in the end (delta: 661.7 MB). Free memory was 125.5 MB in the beginning and 499.5 MB in the end (delta: -374.0 MB). Peak memory consumption was 289.0 MB. Max. memory is 8.0 GB. [2020-10-28 10:09:39,042 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 153.1 MB. Free memory was 125.8 MB in the beginning and 125.7 MB in the end (delta: 101.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 10:09:39,043 INFO L168 Benchmark]: CACSL2BoogieTranslator took 674.18 ms. Allocated memory is still 153.1 MB. Free memory was 125.0 MB in the beginning and 130.5 MB in the end (delta: -5.6 MB). Peak memory consumption was 28.9 MB. Max. memory is 8.0 GB. [2020-10-28 10:09:39,044 INFO L168 Benchmark]: Boogie Preprocessor took 135.72 ms. Allocated memory is still 153.1 MB. Free memory was 130.5 MB in the beginning and 125.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-28 10:09:39,044 INFO L168 Benchmark]: RCFGBuilder took 1514.06 ms. Allocated memory is still 153.1 MB. Free memory was 125.8 MB in the beginning and 95.5 MB in the end (delta: 30.3 MB). Peak memory consumption was 75.5 MB. Max. memory is 8.0 GB. [2020-10-28 10:09:39,045 INFO L168 Benchmark]: TraceAbstraction took 48052.10 ms. Allocated memory was 153.1 MB in the beginning and 814.7 MB in the end (delta: 661.7 MB). Free memory was 95.0 MB in the beginning and 499.5 MB in the end (delta: -404.5 MB). Peak memory consumption was 257.6 MB. Max. memory is 8.0 GB. [2020-10-28 10:09:39,048 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 153.1 MB. Free memory was 125.8 MB in the beginning and 125.7 MB in the end (delta: 101.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 674.18 ms. Allocated memory is still 153.1 MB. Free memory was 125.0 MB in the beginning and 130.5 MB in the end (delta: -5.6 MB). Peak memory consumption was 28.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 135.72 ms. Allocated memory is still 153.1 MB. Free memory was 130.5 MB in the beginning and 125.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1514.06 ms. Allocated memory is still 153.1 MB. Free memory was 125.8 MB in the beginning and 95.5 MB in the end (delta: 30.3 MB). Peak memory consumption was 75.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 48052.10 ms. Allocated memory was 153.1 MB in the beginning and 814.7 MB in the end (delta: 661.7 MB). Free memory was 95.0 MB in the beginning and 499.5 MB in the end (delta: -404.5 MB). Peak memory consumption was 257.6 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 TRUE ((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)))))))) [L75] a7 = 1 [L76] a17 = 1 [L77] a21 = 0 [L78] a20 = 1 [L79] a8 = 13 [L80] a16 = 5 [L81] 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 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 TRUE ((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1))) [L226] a21 = 1 [L227] a8 = 14 [L228] a16 = 4 [L229] a20 = 0 [L230] a7 = 0 [L231] a17 = 0 [L232] 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 TRUE ((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1)) [L406] CALL reach_error() [L4] __assert_fail("0", "Problem01_label56.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: 47.9s, OverallIterations: 13, TraceHistogramMax: 6, AutomataDifference: 21.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 335 SDtfs, 4490 SDslu, 435 SDs, 0 SdLazy, 8617 SolverSat, 1056 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 217 GetRequests, 129 SyntacticMatches, 2 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2239occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 12 MinimizatonAttempts, 1607 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 24.3s InterpolantComputationTime, 2222 NumberOfCodeBlocks, 2222 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1942 ConstructedInterpolants, 0 QuantifiedInterpolants, 981086 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 1 PerfectInterpolantSequences, 1475/1664 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...