/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label47.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:35:30,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:35:30,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:35:30,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:35:30,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:35:30,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:35:30,825 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:35:30,829 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:35:30,833 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:35:30,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:35:30,842 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:35:30,843 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:35:30,844 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:35:30,848 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:35:30,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:35:30,852 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:35:30,854 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:35:30,858 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:35:30,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:35:30,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:35:30,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:35:30,878 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:35:30,880 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:35:30,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:35:30,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:35:30,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:35:30,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:35:30,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:35:30,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:35:30,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:35:30,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:35:30,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:35:30,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:35:30,900 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:35:30,901 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:35:30,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:35:30,902 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:35:30,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:35:30,903 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:35:30,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:35:30,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:35:30,906 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 20:35:30,932 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:35:30,932 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:35:30,934 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:35:30,934 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:35:30,934 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:35:30,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:35:30,935 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:35:30,935 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:35:30,935 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:35:30,936 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:35:30,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:35:30,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:35:30,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:35:30,937 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:35:30,937 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:35:30,937 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:35:30,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:35:30,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:35:30,938 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:35:30,938 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:35:30,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:35:30,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:35:30,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:35:30,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:35:30,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:35:30,940 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:35:30,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:35:30,940 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:35:30,941 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:35:30,941 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:35:31,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:35:31,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:35:31,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:35:31,400 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:35:31,401 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:35:31,402 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label47.c [2020-10-26 20:35:31,486 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/36e7471de/4f7da567ba6a45a0be738cdc679f4968/FLAG9c0a41b07 [2020-10-26 20:35:32,263 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:35:32,263 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label47.c [2020-10-26 20:35:32,280 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/36e7471de/4f7da567ba6a45a0be738cdc679f4968/FLAG9c0a41b07 [2020-10-26 20:35:32,507 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/36e7471de/4f7da567ba6a45a0be738cdc679f4968 [2020-10-26 20:35:32,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:35:32,518 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:35:32,520 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:35:32,520 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:35:32,525 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:35:32,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:35:32" (1/1) ... [2020-10-26 20:35:32,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@522b80ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:32, skipping insertion in model container [2020-10-26 20:35:32,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:35:32" (1/1) ... [2020-10-26 20:35:32,539 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:35:32,588 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:35:33,072 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:35:33,100 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:35:33,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:35:33,314 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:35:33,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:33 WrapperNode [2020-10-26 20:35:33,315 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:35:33,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:35:33,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:35:33,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:35:33,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:33" (1/1) ... [2020-10-26 20:35:33,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:33" (1/1) ... [2020-10-26 20:35:33,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:33" (1/1) ... [2020-10-26 20:35:33,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:33" (1/1) ... [2020-10-26 20:35:33,430 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:33" (1/1) ... [2020-10-26 20:35:33,440 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:33" (1/1) ... [2020-10-26 20:35:33,448 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:33" (1/1) ... [2020-10-26 20:35:33,458 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:35:33,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:35:33,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:35:33,460 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:35:33,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:33" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:35:33,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:35:33,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:35:33,548 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:35:33,549 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:35:33,549 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:35:33,550 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:35:33,550 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:35:33,550 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:35:33,550 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:35:33,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:35:33,551 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:35:33,552 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:35:33,552 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:35:33,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:35:33,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:35:33,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:35:33,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:35:33,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:35:33,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:35:34,818 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:35:34,819 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:35:34,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:35:34 BoogieIcfgContainer [2020-10-26 20:35:34,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:35:34,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:35:34,823 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:35:34,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:35:34,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:35:32" (1/3) ... [2020-10-26 20:35:34,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a92ccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:35:34, skipping insertion in model container [2020-10-26 20:35:34,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:33" (2/3) ... [2020-10-26 20:35:34,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a92ccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:35:34, skipping insertion in model container [2020-10-26 20:35:34,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:35:34" (3/3) ... [2020-10-26 20:35:34,831 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label47.c [2020-10-26 20:35:34,845 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:35:34,851 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:35:34,866 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:35:34,897 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:35:34,897 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:35:34,897 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:35:34,897 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:35:34,898 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:35:34,898 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:35:34,898 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:35:34,898 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:35:34,923 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-26 20:35:34,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-26 20:35:34,934 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:34,935 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] [2020-10-26 20:35:34,936 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:34,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:34,943 INFO L82 PathProgramCache]: Analyzing trace with hash -152736431, now seen corresponding path program 1 times [2020-10-26 20:35:34,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:34,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [80978024] [2020-10-26 20:35:34,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:35,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:35,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:35,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:37,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:37,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-26 20:35:37,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:37,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1900 [2020-10-26 20:35:37,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:37,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:35:37,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:35:37,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-26 20:35:37,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:35:37,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:37,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:37,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:37,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:37,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:37,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:37,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-26 20:35:37,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:37,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:37,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:37,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:35:37,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:35:37,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:35:37,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [80978024] [2020-10-26 20:35:37,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:35:37,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 20:35:37,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669332546] [2020-10-26 20:35:37,507 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:35:37,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:37,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:35:37,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:35:37,531 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 5 states. [2020-10-26 20:35:40,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:40,160 INFO L93 Difference]: Finished difference Result 703 states and 1239 transitions. [2020-10-26 20:35:40,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:35:40,162 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 80 [2020-10-26 20:35:40,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:40,180 INFO L225 Difference]: With dead ends: 703 [2020-10-26 20:35:40,180 INFO L226 Difference]: Without dead ends: 424 [2020-10-26 20:35:40,188 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:35:40,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-10-26 20:35:40,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 418. [2020-10-26 20:35:40,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-26 20:35:40,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 580 transitions. [2020-10-26 20:35:40,297 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 580 transitions. Word has length 80 [2020-10-26 20:35:40,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:40,298 INFO L481 AbstractCegarLoop]: Abstraction has 418 states and 580 transitions. [2020-10-26 20:35:40,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:35:40,298 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 580 transitions. [2020-10-26 20:35:40,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-26 20:35:40,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:40,305 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:40,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:35:40,305 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:40,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:40,306 INFO L82 PathProgramCache]: Analyzing trace with hash 347110222, now seen corresponding path program 1 times [2020-10-26 20:35:40,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:40,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [547803167] [2020-10-26 20:35:40,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:40,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:40,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:40,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-26 20:35:40,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:40,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 390 [2020-10-26 20:35:40,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:40,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:40,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 20:35:40,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-26 20:35:40,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:35:40,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:40,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:40,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:40,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:40,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:40,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:35:40,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:40,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:40,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:40,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:40,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:40,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:40,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:41,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:41,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:41,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:35:41,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:41,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:35:41,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:41,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:41,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:41,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 20:35:41,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:41,039 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:35:41,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [547803167] [2020-10-26 20:35:41,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:41,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:35:41,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878240177] [2020-10-26 20:35:41,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:35:41,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:41,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:35:41,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:35:41,043 INFO L87 Difference]: Start difference. First operand 418 states and 580 transitions. Second operand 5 states. [2020-10-26 20:35:42,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:42,631 INFO L93 Difference]: Finished difference Result 1247 states and 1767 transitions. [2020-10-26 20:35:42,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:35:42,638 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 91 [2020-10-26 20:35:42,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:42,651 INFO L225 Difference]: With dead ends: 1247 [2020-10-26 20:35:42,651 INFO L226 Difference]: Without dead ends: 835 [2020-10-26 20:35:42,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:35:42,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2020-10-26 20:35:42,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 694. [2020-10-26 20:35:42,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 694 states. [2020-10-26 20:35:42,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 906 transitions. [2020-10-26 20:35:42,733 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 906 transitions. Word has length 91 [2020-10-26 20:35:42,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:42,734 INFO L481 AbstractCegarLoop]: Abstraction has 694 states and 906 transitions. [2020-10-26 20:35:42,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:35:42,735 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 906 transitions. [2020-10-26 20:35:42,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-26 20:35:42,742 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:42,742 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:42,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:35:42,743 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:42,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:42,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1035308575, now seen corresponding path program 1 times [2020-10-26 20:35:42,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:42,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [61717974] [2020-10-26 20:35:42,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:42,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:42,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:42,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:43,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:43,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-26 20:35:43,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:43,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1009 [2020-10-26 20:35:43,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:43,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:35:43,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:35:43,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-26 20:35:43,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:43,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:43,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:43,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:43,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:43,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:43,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:43,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:35:43,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:43,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:43,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:43,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:35:43,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:43,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:43,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:43,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:43,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:35:43,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:43,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:35:43,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:43,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:43,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:43,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:35:43,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:44,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-26 20:35:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:44,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:44,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:44,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 20:35:44,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:44,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:35:44,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:44,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:44,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-26 20:35:44,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:44,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:44,051 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 20:35:44,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [61717974] [2020-10-26 20:35:44,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:44,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:35:44,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159917006] [2020-10-26 20:35:44,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:35:44,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:44,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:35:44,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:35:44,058 INFO L87 Difference]: Start difference. First operand 694 states and 906 transitions. Second operand 7 states. [2020-10-26 20:35:45,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:45,636 INFO L93 Difference]: Finished difference Result 1553 states and 2067 transitions. [2020-10-26 20:35:45,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:35:45,637 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 106 [2020-10-26 20:35:45,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:45,643 INFO L225 Difference]: With dead ends: 1553 [2020-10-26 20:35:45,643 INFO L226 Difference]: Without dead ends: 865 [2020-10-26 20:35:45,645 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:35:45,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2020-10-26 20:35:45,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 845. [2020-10-26 20:35:45,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 845 states. [2020-10-26 20:35:45,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1016 transitions. [2020-10-26 20:35:45,684 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1016 transitions. Word has length 106 [2020-10-26 20:35:45,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:45,684 INFO L481 AbstractCegarLoop]: Abstraction has 845 states and 1016 transitions. [2020-10-26 20:35:45,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:35:45,684 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1016 transitions. [2020-10-26 20:35:45,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-26 20:35:45,690 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:45,690 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:45,690 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:35:45,691 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:45,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:45,691 INFO L82 PathProgramCache]: Analyzing trace with hash -353955285, now seen corresponding path program 1 times [2020-10-26 20:35:45,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:45,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [436787063] [2020-10-26 20:35:45,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:45,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:45,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:45,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:47,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:48,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:49,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:49,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-26 20:35:49,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:35:49,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3852 [2020-10-26 20:35:49,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:49,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:35:49,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:35:49,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-26 20:35:49,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:49,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:49,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:49,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:49,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:49,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:49,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:49,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:35:49,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:49,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:49,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:49,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:35:49,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:49,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:49,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:49,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:49,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:49,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:49,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-26 20:35:49,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:49,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-26 20:35:49,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:49,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:49,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:49,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-26 20:35:49,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:49,941 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:35:49,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [436787063] [2020-10-26 20:35:49,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:49,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:35:49,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699582946] [2020-10-26 20:35:49,942 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:35:49,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:49,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:35:49,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:35:49,944 INFO L87 Difference]: Start difference. First operand 845 states and 1016 transitions. Second operand 7 states. [2020-10-26 20:35:51,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:51,836 INFO L93 Difference]: Finished difference Result 1130 states and 1395 transitions. [2020-10-26 20:35:51,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:35:51,837 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 106 [2020-10-26 20:35:51,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:51,845 INFO L225 Difference]: With dead ends: 1130 [2020-10-26 20:35:51,845 INFO L226 Difference]: Without dead ends: 1127 [2020-10-26 20:35:51,846 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2020-10-26 20:35:51,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2020-10-26 20:35:51,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1121. [2020-10-26 20:35:51,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1121 states. [2020-10-26 20:35:51,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1377 transitions. [2020-10-26 20:35:51,898 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1377 transitions. Word has length 106 [2020-10-26 20:35:51,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:51,899 INFO L481 AbstractCegarLoop]: Abstraction has 1121 states and 1377 transitions. [2020-10-26 20:35:51,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:35:51,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1377 transitions. [2020-10-26 20:35:51,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-26 20:35:51,903 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:51,903 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 20:35:51,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:35:51,904 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:51,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:51,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1624972347, now seen corresponding path program 1 times [2020-10-26 20:35:51,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:51,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1966755144] [2020-10-26 20:35:51,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:51,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:51,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:52,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:52,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:53,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:53,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-26 20:35:53,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:35:53,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1656 [2020-10-26 20:35:53,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:53,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:35:53,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:35:53,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:35:53,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:53,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:53,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:53,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:53,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:53,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:53,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:53,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 20:35:53,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:53,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:53,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:53,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:35:53,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:53,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:53,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:53,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:53,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:53,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:53,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:35:53,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:53,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 20:35:53,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:53,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:53,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:53,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:35:53,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:53,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:35:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:53,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:53,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:53,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 20:35:53,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:53,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-26 20:35:53,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:53,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:53,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:53,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:35:53,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:54,050 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 23 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:35:54,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1966755144] [2020-10-26 20:35:54,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:54,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:35:54,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468643290] [2020-10-26 20:35:54,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:35:54,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:54,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:35:54,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:35:54,053 INFO L87 Difference]: Start difference. First operand 1121 states and 1377 transitions. Second operand 8 states. [2020-10-26 20:35:55,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:55,688 INFO L93 Difference]: Finished difference Result 2963 states and 3776 transitions. [2020-10-26 20:35:55,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:35:55,689 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 108 [2020-10-26 20:35:55,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:55,702 INFO L225 Difference]: With dead ends: 2963 [2020-10-26 20:35:55,702 INFO L226 Difference]: Without dead ends: 1699 [2020-10-26 20:35:55,706 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:35:55,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2020-10-26 20:35:55,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1407. [2020-10-26 20:35:55,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1407 states. [2020-10-26 20:35:55,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1407 states to 1407 states and 1633 transitions. [2020-10-26 20:35:55,783 INFO L78 Accepts]: Start accepts. Automaton has 1407 states and 1633 transitions. Word has length 108 [2020-10-26 20:35:55,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:55,783 INFO L481 AbstractCegarLoop]: Abstraction has 1407 states and 1633 transitions. [2020-10-26 20:35:55,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:35:55,783 INFO L276 IsEmpty]: Start isEmpty. Operand 1407 states and 1633 transitions. [2020-10-26 20:35:55,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-26 20:35:55,787 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:55,788 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:55,788 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:35:55,788 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:55,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:55,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1168382805, now seen corresponding path program 1 times [2020-10-26 20:35:55,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:55,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [550156297] [2020-10-26 20:35:55,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:55,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:55,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:55,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:56,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:58,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:58,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-26 20:35:58,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:35:58,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2479 [2020-10-26 20:35:58,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:58,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:35:58,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:35:58,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-26 20:35:58,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:58,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:58,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:58,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:58,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:58,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:58,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-26 20:35:58,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:58,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:58,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:58,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:35:58,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:58,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:58,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:58,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:58,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:58,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:35:58,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:58,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 20:35:58,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:58,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:58,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:58,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:35:58,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:58,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 20:35:58,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:58,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:58,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:58,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 20:35:58,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:58,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:35:58,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:58,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:58,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-26 20:35:58,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:58,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:58,645 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 30 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 20:35:58,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [550156297] [2020-10-26 20:35:58,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:58,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:35:58,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165348563] [2020-10-26 20:35:58,648 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:35:58,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:58,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:35:58,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:35:58,650 INFO L87 Difference]: Start difference. First operand 1407 states and 1633 transitions. Second operand 7 states. [2020-10-26 20:36:00,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:00,118 INFO L93 Difference]: Finished difference Result 3098 states and 3627 transitions. [2020-10-26 20:36:00,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:36:00,122 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 116 [2020-10-26 20:36:00,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:00,131 INFO L225 Difference]: With dead ends: 3098 [2020-10-26 20:36:00,131 INFO L226 Difference]: Without dead ends: 1697 [2020-10-26 20:36:00,134 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:36:00,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2020-10-26 20:36:00,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1691. [2020-10-26 20:36:00,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1691 states. [2020-10-26 20:36:00,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 1954 transitions. [2020-10-26 20:36:00,198 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 1954 transitions. Word has length 116 [2020-10-26 20:36:00,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:00,199 INFO L481 AbstractCegarLoop]: Abstraction has 1691 states and 1954 transitions. [2020-10-26 20:36:00,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:36:00,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 1954 transitions. [2020-10-26 20:36:00,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-26 20:36:00,204 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:00,204 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:00,204 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:36:00,205 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:00,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:00,205 INFO L82 PathProgramCache]: Analyzing trace with hash -2007415949, now seen corresponding path program 1 times [2020-10-26 20:36:00,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:00,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1039126003] [2020-10-26 20:36:00,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:00,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:00,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:00,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:00,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:01,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:01,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-26 20:36:01,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:36:01,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1736 [2020-10-26 20:36:01,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:01,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:01,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:36:01,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-26 20:36:01,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 20:36:02,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:02,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:02,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:02,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:02,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:02,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:02,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:36:02,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:02,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:02,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:02,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:02,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:02,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:02,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:02,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:02,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:02,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:36:02,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:02,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:36:02,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:02,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:02,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:02,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:36:02,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:02,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:36:02,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:02,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:02,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:02,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:36:02,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:02,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-26 20:36:02,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:02,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:02,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:02,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:36:02,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:02,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 20:36:02,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:02,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:02,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:02,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 20:36:02,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:02,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:36:02,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:02,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:02,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-26 20:36:02,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:02,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:02,310 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 44 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-26 20:36:02,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1039126003] [2020-10-26 20:36:02,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:02,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:36:02,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007316083] [2020-10-26 20:36:02,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:36:02,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:02,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:36:02,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:36:02,314 INFO L87 Difference]: Start difference. First operand 1691 states and 1954 transitions. Second operand 7 states. [2020-10-26 20:36:03,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:03,797 INFO L93 Difference]: Finished difference Result 3533 states and 4114 transitions. [2020-10-26 20:36:03,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:36:03,800 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 124 [2020-10-26 20:36:03,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:03,812 INFO L225 Difference]: With dead ends: 3533 [2020-10-26 20:36:03,812 INFO L226 Difference]: Without dead ends: 1983 [2020-10-26 20:36:03,817 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:36:03,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2020-10-26 20:36:03,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1977. [2020-10-26 20:36:03,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1977 states. [2020-10-26 20:36:03,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1977 states to 1977 states and 2268 transitions. [2020-10-26 20:36:03,890 INFO L78 Accepts]: Start accepts. Automaton has 1977 states and 2268 transitions. Word has length 124 [2020-10-26 20:36:03,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:03,890 INFO L481 AbstractCegarLoop]: Abstraction has 1977 states and 2268 transitions. [2020-10-26 20:36:03,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:36:03,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1977 states and 2268 transitions. [2020-10-26 20:36:03,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-26 20:36:03,895 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:03,895 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:03,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:36:03,896 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:03,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:03,896 INFO L82 PathProgramCache]: Analyzing trace with hash 572706849, now seen corresponding path program 1 times [2020-10-26 20:36:03,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:03,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [994468598] [2020-10-26 20:36:03,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:03,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:03,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:04,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:04,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:05,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:05,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-26 20:36:05,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:36:05,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1639 [2020-10-26 20:36:05,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:05,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:36:05,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:36:05,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-26 20:36:05,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:05,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:05,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:05,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:05,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:05,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:05,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:36:05,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:05,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:05,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:05,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:36:05,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:05,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:05,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:05,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:05,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:36:05,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:05,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-26 20:36:05,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:05,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:05,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:05,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-26 20:36:05,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:36:05,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:36:05,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:05,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:05,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:05,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 20:36:05,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:05,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 20:36:05,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:05,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:05,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:05,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:36:05,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:06,017 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 53 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:36:06,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [994468598] [2020-10-26 20:36:06,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:06,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:36:06,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388327279] [2020-10-26 20:36:06,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:36:06,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:06,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:36:06,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:36:06,020 INFO L87 Difference]: Start difference. First operand 1977 states and 2268 transitions. Second operand 8 states. [2020-10-26 20:36:07,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:07,561 INFO L93 Difference]: Finished difference Result 4521 states and 5335 transitions. [2020-10-26 20:36:07,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-26 20:36:07,562 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 138 [2020-10-26 20:36:07,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:07,576 INFO L225 Difference]: With dead ends: 4521 [2020-10-26 20:36:07,576 INFO L226 Difference]: Without dead ends: 2546 [2020-10-26 20:36:07,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-10-26 20:36:07,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2546 states. [2020-10-26 20:36:07,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2546 to 2382. [2020-10-26 20:36:07,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2382 states. [2020-10-26 20:36:07,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 2382 states and 2699 transitions. [2020-10-26 20:36:07,690 INFO L78 Accepts]: Start accepts. Automaton has 2382 states and 2699 transitions. Word has length 138 [2020-10-26 20:36:07,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:07,691 INFO L481 AbstractCegarLoop]: Abstraction has 2382 states and 2699 transitions. [2020-10-26 20:36:07,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:36:07,691 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 2699 transitions. [2020-10-26 20:36:07,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-26 20:36:07,698 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:07,698 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:07,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:36:07,698 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:07,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:07,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1842299790, now seen corresponding path program 1 times [2020-10-26 20:36:07,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:07,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1619424559] [2020-10-26 20:36:07,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:07,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:07,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:08,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:08,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:08,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-26 20:36:08,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:08,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 894 [2020-10-26 20:36:08,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:08,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:08,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-26 20:36:08,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:36:08,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:08,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:08,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:08,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:08,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:08,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:08,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:36:08,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:08,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:08,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:08,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:08,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:36:08,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:08,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:08,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:08,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:08,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:36:08,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:08,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:36:08,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:08,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:08,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:08,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:08,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:08,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:36:08,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:08,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:08,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:08,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:36:08,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:08,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-26 20:36:08,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:08,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:08,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:08,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-26 20:36:08,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:36:08,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-26 20:36:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:08,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:09,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:09,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 20:36:09,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:09,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-26 20:36:09,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:09,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:09,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:09,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:36:09,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:36:09,121 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 115 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-26 20:36:09,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1619424559] [2020-10-26 20:36:09,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:09,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:36:09,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646091253] [2020-10-26 20:36:09,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:36:09,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:09,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:36:09,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:36:09,130 INFO L87 Difference]: Start difference. First operand 2382 states and 2699 transitions. Second operand 7 states. [2020-10-26 20:36:10,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:10,664 INFO L93 Difference]: Finished difference Result 5046 states and 5787 transitions. [2020-10-26 20:36:10,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:36:10,665 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 171 [2020-10-26 20:36:10,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:10,679 INFO L225 Difference]: With dead ends: 5046 [2020-10-26 20:36:10,680 INFO L226 Difference]: Without dead ends: 2805 [2020-10-26 20:36:10,686 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 [2020-10-26 20:36:10,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2805 states. [2020-10-26 20:36:10,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2805 to 2666. [2020-10-26 20:36:10,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2666 states. [2020-10-26 20:36:10,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2666 states to 2666 states and 2973 transitions. [2020-10-26 20:36:10,768 INFO L78 Accepts]: Start accepts. Automaton has 2666 states and 2973 transitions. Word has length 171 [2020-10-26 20:36:10,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:10,768 INFO L481 AbstractCegarLoop]: Abstraction has 2666 states and 2973 transitions. [2020-10-26 20:36:10,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:36:10,769 INFO L276 IsEmpty]: Start isEmpty. Operand 2666 states and 2973 transitions. [2020-10-26 20:36:10,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-10-26 20:36:10,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:10,775 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:10,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:36:10,776 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:10,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:10,776 INFO L82 PathProgramCache]: Analyzing trace with hash 81507589, now seen corresponding path program 1 times [2020-10-26 20:36:10,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:10,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [110878701] [2020-10-26 20:36:10,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:10,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:10,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:10,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:11,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:13,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:13,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-10-26 20:36:13,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:36:13,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2201 [2020-10-26 20:36:13,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:13,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:13,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-26 20:36:13,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-26 20:36:13,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:13,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:13,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:13,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:13,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:13,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:13,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:13,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:36:13,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:13,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:13,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:13,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:13,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:13,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:13,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:13,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:13,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:13,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:36:13,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:13,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:36:13,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:13,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:13,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:13,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:13,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:13,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:36:13,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:13,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:13,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:13,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:36:13,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:13,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 20:36:13,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:13,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:13,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:13,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-26 20:36:13,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:13,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-26 20:36:13,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:13,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:13,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:13,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:36:13,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:13,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 20:36:13,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:13,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:13,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:13,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:36:13,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:13,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-26 20:36:13,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:13,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:13,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:13,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 20:36:13,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:13,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:36:13,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:13,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:13,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-26 20:36:13,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:13,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:13,402 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 143 proven. 16 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-10-26 20:36:13,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [110878701] [2020-10-26 20:36:13,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:13,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:36:13,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237673328] [2020-10-26 20:36:13,405 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:36:13,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:13,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:36:13,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:36:13,406 INFO L87 Difference]: Start difference. First operand 2666 states and 2973 transitions. Second operand 7 states. [2020-10-26 20:36:13,919 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:36:15,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:15,159 INFO L93 Difference]: Finished difference Result 5348 states and 6020 transitions. [2020-10-26 20:36:15,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:36:15,159 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 190 [2020-10-26 20:36:15,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:15,174 INFO L225 Difference]: With dead ends: 5348 [2020-10-26 20:36:15,174 INFO L226 Difference]: Without dead ends: 2823 [2020-10-26 20:36:15,180 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:36:15,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2823 states. [2020-10-26 20:36:15,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2823 to 2664. [2020-10-26 20:36:15,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2020-10-26 20:36:15,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 2908 transitions. [2020-10-26 20:36:15,258 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 2908 transitions. Word has length 190 [2020-10-26 20:36:15,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:15,259 INFO L481 AbstractCegarLoop]: Abstraction has 2664 states and 2908 transitions. [2020-10-26 20:36:15,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:36:15,259 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 2908 transitions. [2020-10-26 20:36:15,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-10-26 20:36:15,269 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:15,269 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 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] [2020-10-26 20:36:15,270 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:36:15,270 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:15,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:15,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1456007675, now seen corresponding path program 1 times [2020-10-26 20:36:15,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:15,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1397207289] [2020-10-26 20:36:15,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:15,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:15,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:15,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:15,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:18,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:18,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-10-26 20:36:18,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:36:18,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3336 [2020-10-26 20:36:18,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:18,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:36:18,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-26 20:36:18,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-26 20:36:18,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:18,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:18,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:18,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:18,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:18,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:18,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:18,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-26 20:36:18,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:18,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:18,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:18,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:18,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:18,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:18,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:18,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:18,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:36:18,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:18,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 20:36:18,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:18,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:18,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:18,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:18,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:18,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:36:18,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:18,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:18,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:18,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:36:18,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:18,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:36:18,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:18,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:18,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:18,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:18,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:18,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:36:18,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:18,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:18,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:18,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-26 20:36:18,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:18,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-26 20:36:18,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:18,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:18,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:18,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-26 20:36:18,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:18,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-26 20:36:18,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:18,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:18,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:18,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:18,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:36:18,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:19,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-26 20:36:19,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:19,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:19,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:19,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:36:19,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:19,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-26 20:36:19,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:19,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:19,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:19,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:36:19,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:19,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-26 20:36:19,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:19,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:19,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:19,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:36:19,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:19,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-26 20:36:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:19,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:19,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:19,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-26 20:36:19,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:19,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-26 20:36:19,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:19,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:19,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-26 20:36:19,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:19,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:19,302 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 228 proven. 26 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2020-10-26 20:36:19,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1397207289] [2020-10-26 20:36:19,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:19,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-26 20:36:19,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405608242] [2020-10-26 20:36:19,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-26 20:36:19,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:19,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-26 20:36:19,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-26 20:36:19,306 INFO L87 Difference]: Start difference. First operand 2664 states and 2908 transitions. Second operand 9 states. [2020-10-26 20:36:21,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:21,160 INFO L93 Difference]: Finished difference Result 5630 states and 6179 transitions. [2020-10-26 20:36:21,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:36:21,161 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 236 [2020-10-26 20:36:21,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:21,174 INFO L225 Difference]: With dead ends: 5630 [2020-10-26 20:36:21,174 INFO L226 Difference]: Without dead ends: 3107 [2020-10-26 20:36:21,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-10-26 20:36:21,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3107 states. [2020-10-26 20:36:21,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3107 to 2799. [2020-10-26 20:36:21,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2799 states. [2020-10-26 20:36:21,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2799 states to 2799 states and 3051 transitions. [2020-10-26 20:36:21,268 INFO L78 Accepts]: Start accepts. Automaton has 2799 states and 3051 transitions. Word has length 236 [2020-10-26 20:36:21,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:21,268 INFO L481 AbstractCegarLoop]: Abstraction has 2799 states and 3051 transitions. [2020-10-26 20:36:21,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-26 20:36:21,268 INFO L276 IsEmpty]: Start isEmpty. Operand 2799 states and 3051 transitions. [2020-10-26 20:36:21,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-10-26 20:36:21,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:21,277 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:21,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 20:36:21,278 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:21,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:21,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1825516205, now seen corresponding path program 1 times [2020-10-26 20:36:21,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:21,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [681555637] [2020-10-26 20:36:21,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:21,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:21,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:21,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:22,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:22,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-10-26 20:36:22,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:22,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1223 [2020-10-26 20:36:22,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:22,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:22,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-26 20:36:22,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:36:22,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:22,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:22,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:22,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:22,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:22,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:22,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:22,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:36:22,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:22,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:22,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:22,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:22,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:22,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:22,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:22,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:22,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:22,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:36:22,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:22,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:36:22,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:22,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:22,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:22,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:22,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:22,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:36:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:22,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:22,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:22,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-26 20:36:22,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:22,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:36:22,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:22,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:22,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:22,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:22,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:22,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-26 20:36:22,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:22,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:22,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:22,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:36:22,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:22,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:36:22,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:22,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:22,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:22,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:36:22,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:22,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-26 20:36:22,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:22,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:22,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:22,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:36:22,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:22,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 20:36:22,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:22,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:22,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:22,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:36:22,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:22,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:36:22,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:22,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:22,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:22,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-26 20:36:22,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:22,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 20:36:22,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:22,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:22,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-26 20:36:22,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:22,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:23,048 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 201 proven. 14 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2020-10-26 20:36:23,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [681555637] [2020-10-26 20:36:23,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:23,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:36:23,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073626237] [2020-10-26 20:36:23,049 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:36:23,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:23,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:36:23,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:36:23,050 INFO L87 Difference]: Start difference. First operand 2799 states and 3051 transitions. Second operand 7 states. [2020-10-26 20:36:24,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:24,514 INFO L93 Difference]: Finished difference Result 5747 states and 6320 transitions. [2020-10-26 20:36:24,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:36:24,517 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 238 [2020-10-26 20:36:24,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:24,531 INFO L225 Difference]: With dead ends: 5747 [2020-10-26 20:36:24,531 INFO L226 Difference]: Without dead ends: 3089 [2020-10-26 20:36:24,537 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:36:24,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3089 states. [2020-10-26 20:36:24,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3089 to 2797. [2020-10-26 20:36:24,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2797 states. [2020-10-26 20:36:24,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 3048 transitions. [2020-10-26 20:36:24,623 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 3048 transitions. Word has length 238 [2020-10-26 20:36:24,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:24,624 INFO L481 AbstractCegarLoop]: Abstraction has 2797 states and 3048 transitions. [2020-10-26 20:36:24,624 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:36:24,624 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 3048 transitions. [2020-10-26 20:36:24,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-10-26 20:36:24,634 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:24,635 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 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, 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] [2020-10-26 20:36:24,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 20:36:24,635 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:24,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:24,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1376083194, now seen corresponding path program 1 times [2020-10-26 20:36:24,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:24,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [208616351] [2020-10-26 20:36:24,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:24,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:24,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:24,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:26,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:26,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-26 20:36:26,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:26,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1305 [2020-10-26 20:36:26,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:26,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:26,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-26 20:36:26,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:36:26,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:26,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:26,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:26,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:26,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:26,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:26,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:26,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:36:26,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:26,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:26,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:26,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:26,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:26,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:26,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:26,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:26,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:26,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:36:26,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:26,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 20:36:26,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:26,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:26,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:26,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:26,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:26,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:36:26,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:26,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:26,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:26,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:36:26,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:26,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:36:26,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:26,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:26,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:26,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:26,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:26,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:36:26,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:26,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:26,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:26,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-26 20:36:26,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:26,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-26 20:36:26,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:26,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:26,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:26,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-26 20:36:26,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:26,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-26 20:36:26,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:26,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:26,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:26,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:36:26,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:26,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 20:36:26,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:26,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:26,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:26,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:36:26,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:26,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-26 20:36:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:26,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:26,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:26,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-26 20:36:26,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:26,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:36:26,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:26,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:26,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-26 20:36:26,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:26,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:26,546 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 211 proven. 14 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2020-10-26 20:36:26,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [208616351] [2020-10-26 20:36:26,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:26,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:36:26,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891903066] [2020-10-26 20:36:26,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:36:26,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:26,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:36:26,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:36:26,549 INFO L87 Difference]: Start difference. First operand 2797 states and 3048 transitions. Second operand 7 states. [2020-10-26 20:36:28,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:28,831 INFO L93 Difference]: Finished difference Result 7081 states and 7752 transitions. [2020-10-26 20:36:28,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:36:28,835 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 255 [2020-10-26 20:36:28,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:28,852 INFO L225 Difference]: With dead ends: 7081 [2020-10-26 20:36:28,852 INFO L226 Difference]: Without dead ends: 4288 [2020-10-26 20:36:28,859 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:36:28,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4288 states. [2020-10-26 20:36:28,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4288 to 2660. [2020-10-26 20:36:28,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2660 states. [2020-10-26 20:36:28,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2660 states to 2660 states and 2898 transitions. [2020-10-26 20:36:28,948 INFO L78 Accepts]: Start accepts. Automaton has 2660 states and 2898 transitions. Word has length 255 [2020-10-26 20:36:28,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:28,949 INFO L481 AbstractCegarLoop]: Abstraction has 2660 states and 2898 transitions. [2020-10-26 20:36:28,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:36:28,949 INFO L276 IsEmpty]: Start isEmpty. Operand 2660 states and 2898 transitions. [2020-10-26 20:36:28,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2020-10-26 20:36:28,958 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:28,958 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, 4, 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] [2020-10-26 20:36:28,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 20:36:28,959 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:28,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:28,959 INFO L82 PathProgramCache]: Analyzing trace with hash -744381797, now seen corresponding path program 1 times [2020-10-26 20:36:28,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:28,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1398702713] [2020-10-26 20:36:28,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:29,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:29,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:29,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:29,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 286 [2020-10-26 20:36:29,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:29,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 332 [2020-10-26 20:36:29,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:29,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:29,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-26 20:36:29,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-26 20:36:29,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:29,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:29,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:29,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:29,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:29,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:29,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:29,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:36:29,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:29,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:29,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:29,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:29,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:29,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:29,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:29,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:29,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:36:29,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:29,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:36:29,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:29,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:29,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:29,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:29,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:29,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:36:29,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:29,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:29,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:29,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:36:29,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:29,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:36:29,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:29,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:29,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:29,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:29,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:29,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:36:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:29,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:29,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:29,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:36:29,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:29,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:36:29,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:29,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:29,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:29,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:29,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:29,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:36:29,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:29,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:29,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:29,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:36:29,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:29,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:36:29,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:29,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:29,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:29,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:36:29,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:29,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:36:29,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:29,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:29,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:29,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-26 20:36:29,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:29,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-26 20:36:29,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:29,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:29,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:29,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-26 20:36:29,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:29,789 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 290 proven. 2 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-26 20:36:29,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1398702713] [2020-10-26 20:36:29,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:29,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:36:29,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010872904] [2020-10-26 20:36:29,793 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:36:29,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:29,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:36:29,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:36:29,795 INFO L87 Difference]: Start difference. First operand 2660 states and 2898 transitions. Second operand 7 states. [2020-10-26 20:36:31,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:31,239 INFO L93 Difference]: Finished difference Result 5199 states and 5669 transitions. [2020-10-26 20:36:31,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:36:31,240 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 266 [2020-10-26 20:36:31,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:31,250 INFO L225 Difference]: With dead ends: 5199 [2020-10-26 20:36:31,251 INFO L226 Difference]: Without dead ends: 2680 [2020-10-26 20:36:31,256 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:36:31,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2680 states. [2020-10-26 20:36:31,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2680 to 2666. [2020-10-26 20:36:31,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2666 states. [2020-10-26 20:36:31,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2666 states to 2666 states and 2881 transitions. [2020-10-26 20:36:31,327 INFO L78 Accepts]: Start accepts. Automaton has 2666 states and 2881 transitions. Word has length 266 [2020-10-26 20:36:31,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:31,328 INFO L481 AbstractCegarLoop]: Abstraction has 2666 states and 2881 transitions. [2020-10-26 20:36:31,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:36:31,328 INFO L276 IsEmpty]: Start isEmpty. Operand 2666 states and 2881 transitions. [2020-10-26 20:36:31,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-10-26 20:36:31,338 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:31,339 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 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, 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] [2020-10-26 20:36:31,339 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 20:36:31,339 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:31,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:31,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1082356908, now seen corresponding path program 1 times [2020-10-26 20:36:31,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:31,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [388023814] [2020-10-26 20:36:31,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:31,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 20:36:31,430 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-26 20:36:31,431 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-26 20:36:31,440 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-26 20:36:31,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:36:31 BoogieIcfgContainer [2020-10-26 20:36:31,526 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:36:31,529 INFO L168 Benchmark]: Toolchain (without parser) took 59014.92 ms. Allocated memory was 125.8 MB in the beginning and 997.2 MB in the end (delta: 871.4 MB). Free memory was 99.8 MB in the beginning and 446.9 MB in the end (delta: -347.1 MB). Peak memory consumption was 525.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:36:31,529 INFO L168 Benchmark]: CDTParser took 0.67 ms. Allocated memory is still 125.8 MB. Free memory is still 85.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:36:31,531 INFO L168 Benchmark]: CACSL2BoogieTranslator took 795.43 ms. Allocated memory was 125.8 MB in the beginning and 159.4 MB in the end (delta: 33.6 MB). Free memory was 99.2 MB in the beginning and 138.6 MB in the end (delta: -39.4 MB). Peak memory consumption was 31.4 MB. Max. memory is 8.0 GB. [2020-10-26 20:36:31,534 INFO L168 Benchmark]: Boogie Preprocessor took 142.28 ms. Allocated memory is still 159.4 MB. Free memory was 138.6 MB in the beginning and 134.0 MB in the end (delta: 4.6 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:36:31,537 INFO L168 Benchmark]: RCFGBuilder took 1361.89 ms. Allocated memory is still 159.4 MB. Free memory was 134.0 MB in the beginning and 80.6 MB in the end (delta: 53.4 MB). Peak memory consumption was 54.9 MB. Max. memory is 8.0 GB. [2020-10-26 20:36:31,538 INFO L168 Benchmark]: TraceAbstraction took 56702.93 ms. Allocated memory was 159.4 MB in the beginning and 997.2 MB in the end (delta: 837.8 MB). Free memory was 80.0 MB in the beginning and 446.9 MB in the end (delta: -366.9 MB). Peak memory consumption was 471.5 MB. Max. memory is 8.0 GB. [2020-10-26 20:36:31,543 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67 ms. Allocated memory is still 125.8 MB. Free memory is still 85.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 795.43 ms. Allocated memory was 125.8 MB in the beginning and 159.4 MB in the end (delta: 33.6 MB). Free memory was 99.2 MB in the beginning and 138.6 MB in the end (delta: -39.4 MB). Peak memory consumption was 31.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 142.28 ms. Allocated memory is still 159.4 MB. Free memory was 138.6 MB in the beginning and 134.0 MB in the end (delta: 4.6 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1361.89 ms. Allocated memory is still 159.4 MB. Free memory was 134.0 MB in the beginning and 80.6 MB in the end (delta: 53.4 MB). Peak memory consumption was 54.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 56702.93 ms. Allocated memory was 159.4 MB in the beginning and 997.2 MB in the end (delta: 837.8 MB). Free memory was 80.0 MB in the beginning and 446.9 MB in the end (delta: -366.9 MB). Peak memory consumption was 471.5 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 TRUE ((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1))) [L151] a16 = 4 [L152] a17 = 0 [L153] return 25; [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 TRUE ((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1))) [L234] a8 = 14 [L235] a7 = 0 [L236] a17 = 1 [L237] a21 = 1 [L238] a16 = 4 [L239] 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 TRUE (((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1)) [L397] CALL reach_error() [L4] __assert_fail("0", "Problem01_label47.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: 56.5s, OverallIterations: 15, TraceHistogramMax: 7, AutomataDifference: 24.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 395 SDtfs, 5927 SDslu, 529 SDs, 0 SdLazy, 11651 SolverSat, 1597 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 278 GetRequests, 145 SyntacticMatches, 4 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2799occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 14 MinimizatonAttempts, 3181 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 29.0s InterpolantComputationTime, 2520 NumberOfCodeBlocks, 2520 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2211 ConstructedInterpolants, 0 QuantifiedInterpolants, 1202526 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 1 PerfectInterpolantSequences, 2052/2178 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...