/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label38.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 10:07:53,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 10:07:53,310 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 10:07:53,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 10:07:53,375 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 10:07:53,382 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 10:07:53,385 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 10:07:53,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 10:07:53,395 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 10:07:53,402 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 10:07:53,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 10:07:53,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 10:07:53,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 10:07:53,409 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 10:07:53,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 10:07:53,414 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 10:07:53,415 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 10:07:53,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 10:07:53,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 10:07:53,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 10:07:53,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 10:07:53,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 10:07:53,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 10:07:53,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 10:07:53,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 10:07:53,477 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 10:07:53,477 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 10:07:53,480 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 10:07:53,480 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 10:07:53,482 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 10:07:53,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 10:07:53,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 10:07:53,486 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 10:07:53,487 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 10:07:53,489 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 10:07:53,489 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 10:07:53,490 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 10:07:53,490 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 10:07:53,491 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 10:07:53,492 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 10:07:53,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 10:07:53,502 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 10:07:53,552 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 10:07:53,553 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 10:07:53,559 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 10:07:53,559 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 10:07:53,560 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 10:07:53,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 10:07:53,561 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 10:07:53,561 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 10:07:53,561 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 10:07:53,562 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 10:07:53,563 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 10:07:53,563 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 10:07:53,564 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 10:07:53,564 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 10:07:53,564 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 10:07:53,565 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 10:07:53,565 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 10:07:53,565 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 10:07:53,566 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 10:07:53,566 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 10:07:53,566 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 10:07:53,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 10:07:53,567 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 10:07:53,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 10:07:53,568 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 10:07:53,568 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 10:07:53,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 10:07:53,569 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 10:07:53,569 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 10:07:53,569 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 10:07:54,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 10:07:54,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 10:07:54,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 10:07:54,111 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 10:07:54,112 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 10:07:54,114 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label38.c [2020-10-28 10:07:54,205 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4714097e4/ad8fb8d1764c4bce89889cd510d5830f/FLAG086966d9d [2020-10-28 10:07:54,930 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 10:07:54,931 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label38.c [2020-10-28 10:07:54,956 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4714097e4/ad8fb8d1764c4bce89889cd510d5830f/FLAG086966d9d [2020-10-28 10:07:55,179 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4714097e4/ad8fb8d1764c4bce89889cd510d5830f [2020-10-28 10:07:55,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 10:07:55,188 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 10:07:55,190 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 10:07:55,190 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 10:07:55,194 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 10:07:55,195 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:07:55" (1/1) ... [2020-10-28 10:07:55,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2df18323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:07:55, skipping insertion in model container [2020-10-28 10:07:55,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:07:55" (1/1) ... [2020-10-28 10:07:55,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 10:07:55,252 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 10:07:55,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 10:07:55,706 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 10:07:55,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 10:07:55,937 INFO L208 MainTranslator]: Completed translation [2020-10-28 10:07:55,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:07:55 WrapperNode [2020-10-28 10:07:55,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 10:07:55,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 10:07:55,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 10:07:55,939 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 10:07:55,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:07:55" (1/1) ... [2020-10-28 10:07:55,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:07:55" (1/1) ... [2020-10-28 10:07:55,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:07:55" (1/1) ... [2020-10-28 10:07:55,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:07:55" (1/1) ... [2020-10-28 10:07:56,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:07:55" (1/1) ... [2020-10-28 10:07:56,064 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:07:55" (1/1) ... [2020-10-28 10:07:56,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:07:55" (1/1) ... [2020-10-28 10:07:56,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 10:07:56,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 10:07:56,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 10:07:56,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 10:07:56,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:07:55" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 10:07:56,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 10:07:56,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 10:07:56,179 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 10:07:56,179 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 10:07:56,179 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 10:07:56,180 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 10:07:56,180 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 10:07:56,180 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 10:07:56,181 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 10:07:56,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 10:07:56,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 10:07:56,182 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 10:07:56,182 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 10:07:56,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 10:07:56,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 10:07:56,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 10:07:56,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 10:07:56,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 10:07:56,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 10:07:57,529 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 10:07:57,530 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 10:07:57,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:07:57 BoogieIcfgContainer [2020-10-28 10:07:57,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 10:07:57,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 10:07:57,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 10:07:57,538 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 10:07:57,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 10:07:55" (1/3) ... [2020-10-28 10:07:57,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b5d2b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:07:57, skipping insertion in model container [2020-10-28 10:07:57,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:07:55" (2/3) ... [2020-10-28 10:07:57,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b5d2b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:07:57, skipping insertion in model container [2020-10-28 10:07:57,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:07:57" (3/3) ... [2020-10-28 10:07:57,542 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label38.c [2020-10-28 10:07:57,555 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 10:07:57,561 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 10:07:57,576 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 10:07:57,609 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 10:07:57,609 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 10:07:57,609 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 10:07:57,609 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 10:07:57,609 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 10:07:57,609 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 10:07:57,610 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 10:07:57,610 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 10:07:57,634 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-28 10:07:57,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-28 10:07:57,646 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:07:57,647 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:07:57,647 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:07:57,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:07:57,654 INFO L82 PathProgramCache]: Analyzing trace with hash 671334971, now seen corresponding path program 1 times [2020-10-28 10:07:57,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:07:57,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [625428541] [2020-10-28 10:07:57,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:07:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:58,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:58,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:00,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:00,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-28 10:08:00,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:08:00,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2033 [2020-10-28 10:08:00,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:00,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:00,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:08:00,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 10:08:00,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-28 10:08:00,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 10:08:00,303 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-28 10:08:00,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:08:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:00,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:00,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:00,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:08:00,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:00,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 10:08:00,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:00,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:00,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:08:00,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:00,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 10:08:00,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:00,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:08:00,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [625428541] [2020-10-28 10:08:00,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 10:08:00,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 10:08:00,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947253385] [2020-10-28 10:08:00,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 10:08:00,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:08:00,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 10:08:00,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 10:08:00,441 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 4 states. [2020-10-28 10:08:00,616 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-28 10:08:02,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:08:02,625 INFO L93 Difference]: Finished difference Result 562 states and 962 transitions. [2020-10-28 10:08:02,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:08:02,628 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 89 [2020-10-28 10:08:02,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:08:02,644 INFO L225 Difference]: With dead ends: 562 [2020-10-28 10:08:02,644 INFO L226 Difference]: Without dead ends: 287 [2020-10-28 10:08:02,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:08:02,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-28 10:08:02,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 281. [2020-10-28 10:08:02,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-28 10:08:02,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 397 transitions. [2020-10-28 10:08:02,739 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 397 transitions. Word has length 89 [2020-10-28 10:08:02,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:08:02,740 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 397 transitions. [2020-10-28 10:08:02,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 10:08:02,740 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 397 transitions. [2020-10-28 10:08:02,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-28 10:08:02,745 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:08:02,746 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:08:02,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 10:08:02,746 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:08:02,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:08:02,747 INFO L82 PathProgramCache]: Analyzing trace with hash 2124385018, now seen corresponding path program 1 times [2020-10-28 10:08:02,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:08:02,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1184927431] [2020-10-28 10:08:02,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:08:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:02,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:02,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:05,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:07,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:07,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 10:08:07,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 10:08:07,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4224 [2020-10-28 10:08:07,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:07,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:07,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:08:07,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 10:08:07,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-28 10:08:07,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:07,190 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-28 10:08:07,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:08:07,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:07,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:07,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:07,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:08:07,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:07,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 10:08:07,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:07,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:07,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:08:07,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:07,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:08:07,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:07,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:08:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:07,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:07,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:07,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 10:08:07,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:07,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 10:08:07,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:07,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:07,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:08:07,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:07,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 10:08:07,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:07,308 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:08:07,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1184927431] [2020-10-28 10:08:07,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:08:07,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 10:08:07,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645620498] [2020-10-28 10:08:07,311 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 10:08:07,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:08:07,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 10:08:07,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:08:07,313 INFO L87 Difference]: Start difference. First operand 281 states and 397 transitions. Second operand 6 states. [2020-10-28 10:08:09,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:08:09,872 INFO L93 Difference]: Finished difference Result 1110 states and 1618 transitions. [2020-10-28 10:08:09,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 10:08:09,873 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 98 [2020-10-28 10:08:09,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:08:09,883 INFO L225 Difference]: With dead ends: 1110 [2020-10-28 10:08:09,883 INFO L226 Difference]: Without dead ends: 835 [2020-10-28 10:08:09,885 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-28 10:08:09,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2020-10-28 10:08:09,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 694. [2020-10-28 10:08:09,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 694 states. [2020-10-28 10:08:09,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 970 transitions. [2020-10-28 10:08:09,955 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 970 transitions. Word has length 98 [2020-10-28 10:08:09,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:08:09,956 INFO L481 AbstractCegarLoop]: Abstraction has 694 states and 970 transitions. [2020-10-28 10:08:09,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 10:08:09,956 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 970 transitions. [2020-10-28 10:08:09,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-28 10:08:09,964 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:08:09,964 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:08:09,964 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 10:08:09,964 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:08:09,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:08:09,965 INFO L82 PathProgramCache]: Analyzing trace with hash -116526454, now seen corresponding path program 1 times [2020-10-28 10:08:09,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:08:09,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1115127028] [2020-10-28 10:08:09,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:08:09,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:10,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:10,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:10,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:10,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:10,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 10:08:10,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 10:08:10,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 995 [2020-10-28 10:08:10,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:10,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:10,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:08:10,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-28 10:08:10,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-28 10:08:10,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:11,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:08:11,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:11,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:11,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:11,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:08:11,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:11,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 10:08:11,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:11,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:11,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:08:11,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:11,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:08:11,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:11,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:08:11,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:11,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:11,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:11,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 10:08:11,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:11,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-28 10:08:11,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:11,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:11,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:08:11,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:11,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 10:08:11,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:11,287 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:08:11,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1115127028] [2020-10-28 10:08:11,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:08:11,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:08:11,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747912870] [2020-10-28 10:08:11,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:08:11,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:08:11,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:08:11,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:08:11,295 INFO L87 Difference]: Start difference. First operand 694 states and 970 transitions. Second operand 5 states. [2020-10-28 10:08:12,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:08:12,757 INFO L93 Difference]: Finished difference Result 1934 states and 2768 transitions. [2020-10-28 10:08:12,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:08:12,758 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 106 [2020-10-28 10:08:12,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:08:12,767 INFO L225 Difference]: With dead ends: 1934 [2020-10-28 10:08:12,767 INFO L226 Difference]: Without dead ends: 1246 [2020-10-28 10:08:12,770 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:08:12,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1246 states. [2020-10-28 10:08:12,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1246 to 1105. [2020-10-28 10:08:12,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1105 states. [2020-10-28 10:08:12,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 1481 transitions. [2020-10-28 10:08:12,842 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 1481 transitions. Word has length 106 [2020-10-28 10:08:12,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:08:12,843 INFO L481 AbstractCegarLoop]: Abstraction has 1105 states and 1481 transitions. [2020-10-28 10:08:12,843 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:08:12,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 1481 transitions. [2020-10-28 10:08:12,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-28 10:08:12,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:08:12,852 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:08:12,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 10:08:12,853 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:08:12,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:08:12,853 INFO L82 PathProgramCache]: Analyzing trace with hash -339910564, now seen corresponding path program 1 times [2020-10-28 10:08:12,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:08:12,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1625987300] [2020-10-28 10:08:12,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:08:12,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:12,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:12,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:13,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:13,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:17,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:17,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-28 10:08:17,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 10:08:17,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 10:08:17,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:17,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:17,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:08:17,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-28 10:08:17,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-28 10:08:17,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:18,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:08:18,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:18,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:18,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:18,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:08:18,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:18,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 10:08:18,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:18,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:18,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:08:18,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:18,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:08:18,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:18,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:08:18,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:18,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:18,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:18,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 10:08:18,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:18,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 10:08:18,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:18,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:18,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:08:18,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:18,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 10:08:18,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-28 10:08:18,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 10:08:18,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:18,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:18,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:18,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 10:08:18,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:18,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-28 10:08:18,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:18,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:18,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:08:18,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:08:18,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-28 10:08:18,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:18,328 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 10:08:18,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1625987300] [2020-10-28 10:08:18,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:08:18,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 10:08:18,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146432150] [2020-10-28 10:08:18,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 10:08:18,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:08:18,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 10:08:18,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 10:08:18,332 INFO L87 Difference]: Start difference. First operand 1105 states and 1481 transitions. Second operand 8 states. [2020-10-28 10:08:21,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:08:21,789 INFO L93 Difference]: Finished difference Result 2685 states and 3795 transitions. [2020-10-28 10:08:21,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 10:08:21,790 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 128 [2020-10-28 10:08:21,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:08:21,802 INFO L225 Difference]: With dead ends: 2685 [2020-10-28 10:08:21,802 INFO L226 Difference]: Without dead ends: 1586 [2020-10-28 10:08:21,806 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-28 10:08:21,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2020-10-28 10:08:21,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1578. [2020-10-28 10:08:21,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1578 states. [2020-10-28 10:08:21,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 2094 transitions. [2020-10-28 10:08:21,899 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 2094 transitions. Word has length 128 [2020-10-28 10:08:21,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:08:21,899 INFO L481 AbstractCegarLoop]: Abstraction has 1578 states and 2094 transitions. [2020-10-28 10:08:21,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 10:08:21,899 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 2094 transitions. [2020-10-28 10:08:21,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-28 10:08:21,908 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:08:21,908 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:08:21,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 10:08:21,908 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:08:21,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:08:21,909 INFO L82 PathProgramCache]: Analyzing trace with hash 2004567895, now seen corresponding path program 1 times [2020-10-28 10:08:21,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:08:21,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [426308238] [2020-10-28 10:08:21,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:08:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:21,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:21,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:24,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:24,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:26,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:26,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-28 10:08:26,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 10:08:26,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-28 10:08:26,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:26,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:26,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:08:26,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-28 10:08:26,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-28 10:08:26,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:27,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:08:27,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:27,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:27,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:27,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:08:27,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:27,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 10:08:27,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:27,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:27,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:08:27,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:27,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:08:27,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-28 10:08:27,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:08:27,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:27,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:27,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:27,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 10:08:27,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:27,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 10:08:27,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:27,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:27,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:08:27,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:27,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 10:08:27,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:27,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 10:08:27,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:27,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:27,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:27,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:27,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 10:08:27,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:08:27,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-28 10:08:27,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:27,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:27,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:08:27,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:27,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-28 10:08:27,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:27,285 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-28 10:08:27,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [426308238] [2020-10-28 10:08:27,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:08:27,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:08:27,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784540903] [2020-10-28 10:08:27,286 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:08:27,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:08:27,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:08:27,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:08:27,288 INFO L87 Difference]: Start difference. First operand 1578 states and 2094 transitions. Second operand 5 states. [2020-10-28 10:08:28,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:08:28,808 INFO L93 Difference]: Finished difference Result 3994 states and 5424 transitions. [2020-10-28 10:08:28,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:08:28,809 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2020-10-28 10:08:28,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:08:28,827 INFO L225 Difference]: With dead ends: 3994 [2020-10-28 10:08:28,827 INFO L226 Difference]: Without dead ends: 2291 [2020-10-28 10:08:28,836 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:08:28,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2020-10-28 10:08:28,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 2148. [2020-10-28 10:08:28,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2148 states. [2020-10-28 10:08:28,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2148 states to 2148 states and 2784 transitions. [2020-10-28 10:08:28,950 INFO L78 Accepts]: Start accepts. Automaton has 2148 states and 2784 transitions. Word has length 133 [2020-10-28 10:08:28,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:08:28,951 INFO L481 AbstractCegarLoop]: Abstraction has 2148 states and 2784 transitions. [2020-10-28 10:08:28,951 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:08:28,951 INFO L276 IsEmpty]: Start isEmpty. Operand 2148 states and 2784 transitions. [2020-10-28 10:08:28,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-28 10:08:28,963 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:08:28,964 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, 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] [2020-10-28 10:08:28,964 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 10:08:28,964 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:08:28,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:08:28,965 INFO L82 PathProgramCache]: Analyzing trace with hash -56568686, now seen corresponding path program 1 times [2020-10-28 10:08:28,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:08:28,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1277880124] [2020-10-28 10:08:28,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:08:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:29,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:29,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:29,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-28 10:08:29,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:29,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 403 [2020-10-28 10:08:29,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:29,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:29,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:08:29,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 10:08:29,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-28 10:08:29,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:29,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:08:29,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:29,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:29,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:29,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:08:29,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:29,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 10:08:29,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:29,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:29,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:08:29,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:29,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 10:08:29,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:29,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:08:29,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:29,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:29,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:29,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-28 10:08:29,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:29,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-28 10:08:29,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:29,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:29,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:08:29,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:08:29,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-28 10:08:29,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:29,761 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:08:29,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1277880124] [2020-10-28 10:08:29,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 10:08:29,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 10:08:29,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835191804] [2020-10-28 10:08:29,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:08:29,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:08:29,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:08:29,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:08:29,771 INFO L87 Difference]: Start difference. First operand 2148 states and 2784 transitions. Second operand 7 states. [2020-10-28 10:08:30,368 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-28 10:08:32,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:08:32,704 INFO L93 Difference]: Finished difference Result 4604 states and 6098 transitions. [2020-10-28 10:08:32,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 10:08:32,705 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 142 [2020-10-28 10:08:32,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:08:32,725 INFO L225 Difference]: With dead ends: 4604 [2020-10-28 10:08:32,725 INFO L226 Difference]: Without dead ends: 2325 [2020-10-28 10:08:32,735 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 10:08:32,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2325 states. [2020-10-28 10:08:32,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2325 to 2265. [2020-10-28 10:08:32,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2265 states. [2020-10-28 10:08:32,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2265 states to 2265 states and 2769 transitions. [2020-10-28 10:08:32,862 INFO L78 Accepts]: Start accepts. Automaton has 2265 states and 2769 transitions. Word has length 142 [2020-10-28 10:08:32,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:08:32,862 INFO L481 AbstractCegarLoop]: Abstraction has 2265 states and 2769 transitions. [2020-10-28 10:08:32,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:08:32,863 INFO L276 IsEmpty]: Start isEmpty. Operand 2265 states and 2769 transitions. [2020-10-28 10:08:32,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-28 10:08:32,872 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:08:32,874 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 10:08:32,875 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 10:08:32,877 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:08:32,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:08:32,878 INFO L82 PathProgramCache]: Analyzing trace with hash -114035920, now seen corresponding path program 1 times [2020-10-28 10:08:32,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:08:32,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1771587164] [2020-10-28 10:08:32,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:08:32,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:32,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:33,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:33,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:33,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-28 10:08:33,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:08:33,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 917 [2020-10-28 10:08:33,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:33,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:33,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:08:33,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 10:08:33,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-28 10:08:33,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:33,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:08:33,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:33,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:33,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:34,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:08:34,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:34,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 10:08:34,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:34,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:34,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:08:34,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:34,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:08:34,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:34,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:08:34,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:34,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:34,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:34,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 10:08:34,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:34,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 10:08:34,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:34,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:34,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:08:34,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:34,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 10:08:34,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:34,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 10:08:34,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:34,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:34,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:34,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-28 10:08:34,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:34,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-28 10:08:34,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:34,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:34,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:08:34,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:08:34,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-28 10:08:34,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:34,242 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 10:08:34,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1771587164] [2020-10-28 10:08:34,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:08:34,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:08:34,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497179223] [2020-10-28 10:08:34,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:08:34,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:08:34,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:08:34,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:08:34,245 INFO L87 Difference]: Start difference. First operand 2265 states and 2769 transitions. Second operand 7 states. [2020-10-28 10:08:34,455 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-28 10:08:36,298 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-28 10:08:36,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:08:36,325 INFO L93 Difference]: Finished difference Result 4516 states and 5528 transitions. [2020-10-28 10:08:36,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 10:08:36,326 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 150 [2020-10-28 10:08:36,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:08:36,338 INFO L225 Difference]: With dead ends: 4516 [2020-10-28 10:08:36,338 INFO L226 Difference]: Without dead ends: 2265 [2020-10-28 10:08:36,345 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 10:08:36,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2265 states. [2020-10-28 10:08:36,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2265 to 2114. [2020-10-28 10:08:36,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2114 states. [2020-10-28 10:08:36,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2114 states to 2114 states and 2516 transitions. [2020-10-28 10:08:36,417 INFO L78 Accepts]: Start accepts. Automaton has 2114 states and 2516 transitions. Word has length 150 [2020-10-28 10:08:36,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:08:36,417 INFO L481 AbstractCegarLoop]: Abstraction has 2114 states and 2516 transitions. [2020-10-28 10:08:36,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:08:36,418 INFO L276 IsEmpty]: Start isEmpty. Operand 2114 states and 2516 transitions. [2020-10-28 10:08:36,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-28 10:08:36,424 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:08:36,424 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 10:08:36,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 10:08:36,425 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:08:36,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:08:36,425 INFO L82 PathProgramCache]: Analyzing trace with hash 934860239, now seen corresponding path program 1 times [2020-10-28 10:08:36,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:08:36,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [946614293] [2020-10-28 10:08:36,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:08:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:36,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:36,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:37,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:37,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-28 10:08:37,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:08:37,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 991 [2020-10-28 10:08:37,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:37,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:37,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:08:37,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-28 10:08:37,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-28 10:08:37,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:37,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:08:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:37,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:37,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:37,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:08:37,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:37,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 10:08:37,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:37,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:37,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:08:37,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:37,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:08:37,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:37,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:08:37,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:37,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:37,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:37,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 10:08:37,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:37,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 10:08:37,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:37,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:37,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:08:37,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:37,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 10:08:37,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:37,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 10:08:37,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:37,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:37,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:37,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-28 10:08:37,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:37,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-28 10:08:37,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:37,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:37,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:08:37,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:08:37,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-28 10:08:37,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:37,960 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 66 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 10:08:37,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [946614293] [2020-10-28 10:08:37,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:08:37,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:08:37,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381420634] [2020-10-28 10:08:37,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:08:37,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:08:37,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:08:37,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:08:37,963 INFO L87 Difference]: Start difference. First operand 2114 states and 2516 transitions. Second operand 7 states. [2020-10-28 10:08:40,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:08:40,634 INFO L93 Difference]: Finished difference Result 5862 states and 7036 transitions. [2020-10-28 10:08:40,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 10:08:40,634 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 153 [2020-10-28 10:08:40,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:08:40,654 INFO L225 Difference]: With dead ends: 5862 [2020-10-28 10:08:40,654 INFO L226 Difference]: Without dead ends: 3468 [2020-10-28 10:08:40,680 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 10:08:40,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3468 states. [2020-10-28 10:08:40,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3468 to 1975. [2020-10-28 10:08:40,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1975 states. [2020-10-28 10:08:40,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1975 states to 1975 states and 2263 transitions. [2020-10-28 10:08:40,766 INFO L78 Accepts]: Start accepts. Automaton has 1975 states and 2263 transitions. Word has length 153 [2020-10-28 10:08:40,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:08:40,766 INFO L481 AbstractCegarLoop]: Abstraction has 1975 states and 2263 transitions. [2020-10-28 10:08:40,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:08:40,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1975 states and 2263 transitions. [2020-10-28 10:08:40,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-28 10:08:40,773 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:08:40,774 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 10:08:40,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 10:08:40,774 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:08:40,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:08:40,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1773754305, now seen corresponding path program 1 times [2020-10-28 10:08:40,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:08:40,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1799075609] [2020-10-28 10:08:40,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:08:40,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:40,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:40,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:42,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:42,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-28 10:08:42,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:08:42,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1560 [2020-10-28 10:08:42,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:42,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:42,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:08:42,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-28 10:08:42,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-28 10:08:42,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:42,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:08:42,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:42,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:42,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:42,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:08:42,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:42,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 10:08:42,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:42,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:42,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:08:42,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:42,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:08:42,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:42,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:08:42,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:42,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:42,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:42,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-28 10:08:42,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:42,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 10:08:42,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:42,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:42,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:08:42,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:42,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 10:08:42,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:42,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-28 10:08:42,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:42,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:42,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:42,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-28 10:08:42,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:42,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-28 10:08:42,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:42,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:42,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:08:42,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:08:42,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-28 10:08:42,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:42,848 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 10:08:42,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1799075609] [2020-10-28 10:08:42,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:08:42,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:08:42,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403277839] [2020-10-28 10:08:42,849 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:08:42,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:08:42,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:08:42,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:08:42,851 INFO L87 Difference]: Start difference. First operand 1975 states and 2263 transitions. Second operand 7 states. [2020-10-28 10:08:43,241 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-28 10:08:44,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:08:44,939 INFO L93 Difference]: Finished difference Result 4095 states and 4713 transitions. [2020-10-28 10:08:44,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 10:08:44,940 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 161 [2020-10-28 10:08:44,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:08:44,950 INFO L225 Difference]: With dead ends: 4095 [2020-10-28 10:08:44,950 INFO L226 Difference]: Without dead ends: 2126 [2020-10-28 10:08:44,956 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 10:08:44,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2126 states. [2020-10-28 10:08:45,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2126 to 2112. [2020-10-28 10:08:45,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2112 states. [2020-10-28 10:08:45,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2112 states to 2112 states and 2396 transitions. [2020-10-28 10:08:45,039 INFO L78 Accepts]: Start accepts. Automaton has 2112 states and 2396 transitions. Word has length 161 [2020-10-28 10:08:45,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:08:45,040 INFO L481 AbstractCegarLoop]: Abstraction has 2112 states and 2396 transitions. [2020-10-28 10:08:45,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:08:45,040 INFO L276 IsEmpty]: Start isEmpty. Operand 2112 states and 2396 transitions. [2020-10-28 10:08:45,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-28 10:08:45,047 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:08:45,047 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 10:08:45,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 10:08:45,047 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:08:45,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:08:45,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1477876867, now seen corresponding path program 1 times [2020-10-28 10:08:45,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:08:45,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1950750803] [2020-10-28 10:08:45,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:08:45,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:45,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:45,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:46,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:46,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-28 10:08:46,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:08:46,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1304 [2020-10-28 10:08:46,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:46,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:46,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:08:46,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-28 10:08:46,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-28 10:08:46,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:46,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:08:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:46,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:46,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:46,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:08:46,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:46,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 10:08:46,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:46,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:46,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:08:46,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:46,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:08:46,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:46,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:08:46,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:46,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:46,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:46,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-28 10:08:46,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:46,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 10:08:46,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:46,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:46,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:08:46,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:46,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-28 10:08:46,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:46,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 10:08:46,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:46,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:46,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:46,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-28 10:08:46,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:46,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-28 10:08:46,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:46,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:46,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:08:46,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:08:46,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-28 10:08:46,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:46,816 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 110 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 10:08:46,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1950750803] [2020-10-28 10:08:46,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:08:46,817 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:08:46,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804365335] [2020-10-28 10:08:46,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:08:46,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:08:46,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:08:46,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:08:46,819 INFO L87 Difference]: Start difference. First operand 2112 states and 2396 transitions. Second operand 7 states. [2020-10-28 10:08:48,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:08:48,406 INFO L93 Difference]: Finished difference Result 4224 states and 4798 transitions. [2020-10-28 10:08:48,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 10:08:48,412 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 175 [2020-10-28 10:08:48,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:08:48,422 INFO L225 Difference]: With dead ends: 4224 [2020-10-28 10:08:48,422 INFO L226 Difference]: Without dead ends: 2118 [2020-10-28 10:08:48,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-28 10:08:48,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2118 states. [2020-10-28 10:08:48,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2118 to 1973. [2020-10-28 10:08:48,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1973 states. [2020-10-28 10:08:48,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1973 states to 1973 states and 2187 transitions. [2020-10-28 10:08:48,492 INFO L78 Accepts]: Start accepts. Automaton has 1973 states and 2187 transitions. Word has length 175 [2020-10-28 10:08:48,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:08:48,492 INFO L481 AbstractCegarLoop]: Abstraction has 1973 states and 2187 transitions. [2020-10-28 10:08:48,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:08:48,492 INFO L276 IsEmpty]: Start isEmpty. Operand 1973 states and 2187 transitions. [2020-10-28 10:08:48,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-10-28 10:08:48,499 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:08:48,499 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 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] [2020-10-28 10:08:48,500 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 10:08:48,500 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:08:48,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:08:48,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1024336017, now seen corresponding path program 1 times [2020-10-28 10:08:48,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:08:48,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1131149427] [2020-10-28 10:08:48,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:08:48,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:48,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:48,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:50,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:50,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-28 10:08:50,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:08:50,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1553 [2020-10-28 10:08:50,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:50,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:50,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:08:50,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-28 10:08:50,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-28 10:08:50,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:50,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:08:50,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:50,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:50,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:50,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:08:50,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:50,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 10:08:50,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:50,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:50,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:08:50,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:50,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:08:50,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:50,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:08:50,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:50,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:50,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:50,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-28 10:08:50,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:50,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 10:08:50,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:50,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:50,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:08:50,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:50,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:08:50,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:50,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 10:08:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:50,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:50,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:50,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 10:08:50,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:50,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 10:08:50,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:50,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:50,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:08:50,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:50,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 10:08:50,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:50,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 10:08:50,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:50,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:50,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:50,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-28 10:08:50,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:50,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-28 10:08:50,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:50,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:50,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:08:50,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:08:50,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-28 10:08:50,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:50,550 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 141 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-28 10:08:50,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1131149427] [2020-10-28 10:08:50,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:08:50,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:08:50,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918698116] [2020-10-28 10:08:50,552 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:08:50,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:08:50,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:08:50,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:08:50,553 INFO L87 Difference]: Start difference. First operand 1973 states and 2187 transitions. Second operand 7 states. [2020-10-28 10:08:52,047 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-28 10:08:52,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:08:52,320 INFO L93 Difference]: Finished difference Result 4369 states and 4849 transitions. [2020-10-28 10:08:52,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 10:08:52,321 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 191 [2020-10-28 10:08:52,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:08:52,332 INFO L225 Difference]: With dead ends: 4369 [2020-10-28 10:08:52,332 INFO L226 Difference]: Without dead ends: 2402 [2020-10-28 10:08:52,340 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 10:08:52,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2402 states. [2020-10-28 10:08:52,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2402 to 2384. [2020-10-28 10:08:52,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2384 states. [2020-10-28 10:08:52,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2384 states to 2384 states and 2626 transitions. [2020-10-28 10:08:52,416 INFO L78 Accepts]: Start accepts. Automaton has 2384 states and 2626 transitions. Word has length 191 [2020-10-28 10:08:52,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:08:52,417 INFO L481 AbstractCegarLoop]: Abstraction has 2384 states and 2626 transitions. [2020-10-28 10:08:52,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:08:52,417 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states and 2626 transitions. [2020-10-28 10:08:52,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-10-28 10:08:52,426 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:08:52,426 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 10:08:52,426 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 10:08:52,426 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:08:52,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:08:52,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1760573644, now seen corresponding path program 1 times [2020-10-28 10:08:52,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:08:52,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1388540215] [2020-10-28 10:08:52,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:08:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:52,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:52,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:52,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:56,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:56,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-28 10:08:56,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 10:08:56,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4035 [2020-10-28 10:08:56,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:56,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:56,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:08:56,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-28 10:08:56,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 10:08:56,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:56,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:08:56,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:56,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:56,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:56,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:08:56,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:56,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 10:08:56,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:56,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:56,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:08:56,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:56,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:08:56,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:56,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:08:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:56,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:56,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:56,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-28 10:08:56,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:56,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 10:08:56,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:56,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:56,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:08:56,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:56,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:08:56,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:56,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 10:08:56,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:56,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:56,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:56,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 10:08:56,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:56,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 10:08:56,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:56,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:56,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:08:56,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:56,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 10:08:56,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:56,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 10:08:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:56,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:56,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:56,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:56,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 10:08:56,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:08:56,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-28 10:08:56,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:56,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:56,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:08:56,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:08:56,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 10:08:56,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:56,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-28 10:08:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:56,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:56,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:56,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-28 10:08:56,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:56,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-28 10:08:56,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:56,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:56,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:08:56,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:08:56,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-28 10:08:56,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:57,001 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 179 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-28 10:08:57,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1388540215] [2020-10-28 10:08:57,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:08:57,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-28 10:08:57,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760202131] [2020-10-28 10:08:57,003 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 10:08:57,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:08:57,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 10:08:57,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-28 10:08:57,004 INFO L87 Difference]: Start difference. First operand 2384 states and 2626 transitions. Second operand 9 states. [2020-10-28 10:08:57,248 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-28 10:08:59,060 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-28 10:08:59,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:08:59,167 INFO L93 Difference]: Finished difference Result 4699 states and 5314 transitions. [2020-10-28 10:08:59,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 10:08:59,168 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 204 [2020-10-28 10:08:59,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:08:59,180 INFO L225 Difference]: With dead ends: 4699 [2020-10-28 10:08:59,180 INFO L226 Difference]: Without dead ends: 2456 [2020-10-28 10:08:59,186 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-28 10:08:59,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2456 states. [2020-10-28 10:08:59,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2456 to 2110. [2020-10-28 10:08:59,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2110 states. [2020-10-28 10:08:59,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2110 states to 2110 states and 2300 transitions. [2020-10-28 10:08:59,269 INFO L78 Accepts]: Start accepts. Automaton has 2110 states and 2300 transitions. Word has length 204 [2020-10-28 10:08:59,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:08:59,270 INFO L481 AbstractCegarLoop]: Abstraction has 2110 states and 2300 transitions. [2020-10-28 10:08:59,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 10:08:59,270 INFO L276 IsEmpty]: Start isEmpty. Operand 2110 states and 2300 transitions. [2020-10-28 10:08:59,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-10-28 10:08:59,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:08:59,277 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:08:59,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 10:08:59,277 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:08:59,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:08:59,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1116497177, now seen corresponding path program 1 times [2020-10-28 10:08:59,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:08:59,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1814809039] [2020-10-28 10:08:59,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:08:59,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:59,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:59,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:59,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:01,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:01,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-10-28 10:09:01,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 10:09:01,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1718 [2020-10-28 10:09:01,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:01,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:01,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:09:01,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-28 10:09:01,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-28 10:09:01,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:01,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:09:01,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:01,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:01,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:01,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:09:01,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:01,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 10:09:01,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:01,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:01,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:01,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:01,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:01,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:01,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:09:01,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:01,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:01,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:01,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 10:09:01,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:01,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 10:09:01,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:01,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:01,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:01,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:01,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:01,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:01,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 10:09:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:01,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:01,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:01,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-28 10:09:01,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:01,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 10:09:01,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:01,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:01,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:09:01,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:01,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 10:09:01,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:01,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 10:09:01,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:01,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:01,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:01,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:01,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-28 10:09:01,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:09:01,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-28 10:09:01,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:01,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:01,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:09:01,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:01,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 10:09:01,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:01,481 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 3 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-10-28 10:09:01,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1814809039] [2020-10-28 10:09:01,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:09:01,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:09:01,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841197866] [2020-10-28 10:09:01,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:09:01,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:09:01,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:09:01,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:09:01,484 INFO L87 Difference]: Start difference. First operand 2110 states and 2300 transitions. Second operand 5 states. [2020-10-28 10:09:02,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:09:02,783 INFO L93 Difference]: Finished difference Result 4496 states and 4927 transitions. [2020-10-28 10:09:02,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:09:02,784 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 205 [2020-10-28 10:09:02,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:09:02,794 INFO L225 Difference]: With dead ends: 4496 [2020-10-28 10:09:02,795 INFO L226 Difference]: Without dead ends: 2527 [2020-10-28 10:09:02,800 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:09:02,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2527 states. [2020-10-28 10:09:02,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2527 to 2390. [2020-10-28 10:09:02,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2390 states. [2020-10-28 10:09:02,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2390 states to 2390 states and 2605 transitions. [2020-10-28 10:09:02,870 INFO L78 Accepts]: Start accepts. Automaton has 2390 states and 2605 transitions. Word has length 205 [2020-10-28 10:09:02,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:09:02,871 INFO L481 AbstractCegarLoop]: Abstraction has 2390 states and 2605 transitions. [2020-10-28 10:09:02,871 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:09:02,871 INFO L276 IsEmpty]: Start isEmpty. Operand 2390 states and 2605 transitions. [2020-10-28 10:09:02,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-10-28 10:09:02,879 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:09:02,880 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 10:09:02,880 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 10:09:02,880 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:09:02,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:09:02,881 INFO L82 PathProgramCache]: Analyzing trace with hash 1503398707, now seen corresponding path program 1 times [2020-10-28 10:09:02,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:09:02,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1408255530] [2020-10-28 10:09:02,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:09:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 10:09:02,950 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 10:09:02,951 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 10:09:02,959 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 10:09:03,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 10:09:03 BoogieIcfgContainer [2020-10-28 10:09:03,041 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 10:09:03,043 INFO L168 Benchmark]: Toolchain (without parser) took 67858.69 ms. Allocated memory was 151.0 MB in the beginning and 714.1 MB in the end (delta: 563.1 MB). Free memory was 124.9 MB in the beginning and 404.3 MB in the end (delta: -279.3 MB). Peak memory consumption was 284.2 MB. Max. memory is 8.0 GB. [2020-10-28 10:09:03,044 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 151.0 MB. Free memory is still 123.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 10:09:03,045 INFO L168 Benchmark]: CACSL2BoogieTranslator took 748.32 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 130.0 MB in the end (delta: -5.7 MB). Peak memory consumption was 29.9 MB. Max. memory is 8.0 GB. [2020-10-28 10:09:03,049 INFO L168 Benchmark]: Boogie Preprocessor took 146.39 ms. Allocated memory is still 151.0 MB. Free memory was 130.0 MB in the beginning and 124.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-28 10:09:03,050 INFO L168 Benchmark]: RCFGBuilder took 1446.30 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 103.4 MB in the end (delta: 21.3 MB). Peak memory consumption was 80.7 MB. Max. memory is 8.0 GB. [2020-10-28 10:09:03,051 INFO L168 Benchmark]: TraceAbstraction took 65506.78 ms. Allocated memory was 151.0 MB in the beginning and 714.1 MB in the end (delta: 563.1 MB). Free memory was 103.4 MB in the beginning and 404.3 MB in the end (delta: -300.8 MB). Peak memory consumption was 261.8 MB. Max. memory is 8.0 GB. [2020-10-28 10:09:03,063 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 151.0 MB. Free memory is still 123.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 748.32 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 130.0 MB in the end (delta: -5.7 MB). Peak memory consumption was 29.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 146.39 ms. Allocated memory is still 151.0 MB. Free memory was 130.0 MB in the beginning and 124.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1446.30 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 103.4 MB in the end (delta: 21.3 MB). Peak memory consumption was 80.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 65506.78 ms. Allocated memory was 151.0 MB in the beginning and 714.1 MB in the end (delta: 563.1 MB). Free memory was 103.4 MB in the beginning and 404.3 MB in the end (delta: -300.8 MB). Peak memory consumption was 261.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L9] int a= 1; [L10] int d= 4; [L11] int e= 5; [L12] int f= 6; [L13] int c= 3; [L14] int b= 2; [L17] int u = 21; [L18] int v = 22; [L19] int w = 23; [L20] int x = 24; [L21] int y = 25; [L22] int z = 26; [L24] int a17 = 1; [L25] int a7 = 0; [L26] int a20 = 1; [L27] int a8 = 15; [L28] int a12 = 8; [L29] int a16 = 5; [L30] int a21 = 1; [L582] int output = -1; [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L82] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L86] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L94] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L99] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L104] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L110] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L116] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L121] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L126] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L131] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L138] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L142] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L146] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L150] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L154] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L162] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L167] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L175] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L180] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L188] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L191] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L196] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L199] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L205] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L210] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L216] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L220] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L225] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L233] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L240] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L247] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L252] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L258] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L263] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L267] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L270] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L275] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L280] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L288] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L294] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L301] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L308] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L314] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L318] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L320] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L326] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L331] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L335] COND TRUE ((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15))) [L336] a17 = 0 [L337] a16 = 4 [L338] return 21; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L82] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L86] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L94] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L99] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L104] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L110] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L116] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L121] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L126] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L131] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L138] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L142] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L146] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L150] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L154] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L162] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L167] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L175] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L180] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L188] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L191] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L196] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L199] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L205] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L210] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L216] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L220] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L225] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L233] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L240] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L247] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L252] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L258] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L263] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L267] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L270] COND TRUE (((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4)) [L271] a20 = 0 [L272] a17 = 1 [L273] a16 = 6 [L274] return 21; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND TRUE (((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6)) [L65] a17 = 0 [L66] return 26; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L82] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L86] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L94] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L99] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L104] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L110] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L116] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L121] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L126] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L131] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L138] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L142] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L146] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L150] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L154] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L162] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L167] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L175] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L180] COND 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 TRUE (((((((!(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)) [L281] a20 = 1 [L282] a8 = 13 [L283] a16 = 4 [L284] a7 = 0 [L285] a21 = 1 [L286] a17 = 0 [L287] return -1; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L82] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L86] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L94] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L99] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L104] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L110] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L116] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L121] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L126] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L131] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L138] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L142] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L146] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L150] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L154] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L162] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L167] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L175] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L180] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L188] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L191] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L196] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L199] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L205] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L210] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L216] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L220] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L225] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L233] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L240] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L247] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L252] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L258] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L263] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L267] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L270] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L275] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L280] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L288] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L294] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L301] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L308] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L314] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L318] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L320] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L326] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L331] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L335] COND FALSE !(((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15)))) [L339] COND FALSE !((!(a21==1)&&((a20==1)&&(((a12==8)&&((a8==13)&&((((a16==5)&&!(a17==1))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==2))))&&(a7==1))))) [L347] COND FALSE !(((a7==1)&&((a12==8)&&((((a20==1)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||((a16==4)&&!(a17==1))))&&(input==4)))&&(a8==13))&&!(a21==1))))) [L355] COND FALSE !(((a21==1)&&((((!(a7==1)&&((a8==15)&&(!(a20==1)&&(input==4))))&&(a17==1))&&(a16==5))&&(a12==8)))) [L357] COND FALSE !((((!(a7==1)&&((!(a20==1)&&((a21==1)&&((input==3)&&(a17==1))))&&(a8==15)))&&(a12==8))&&(a16==5))) [L363] COND FALSE !(((((!(a17==1)&&(!(a20==1)&&((a8==15)&&((input==1)&&(a16==5)))))&&(a12==8))&&(a21==1))&&!(a7==1))) [L365] COND FALSE !(((((a21==1)&&((a8==15)&&(((a16==5)&&((a12==8)&&(input==1)))&&(a17==1))))&&!(a7==1))&&!(a20==1))) [L367] COND FALSE !(((!(a21==1)&&((a20==1)&&((((a8==13)&&((a7==1)&&(input==5)))&&(a17==1))&&(a12==8))))&&(a16==5))) [L374] COND FALSE !((((!(a7==1)&&((a21==1)&&((((input==6)&&(a20==1))&&(a8==15))&&!(a17==1))))&&(a12==8))&&(a16==4))) [L379] COND FALSE !(((((a20==1)&&(((!(a21==1)&&((a7==1)&&(input==1)))&&(a8==13))&&(a17==1)))&&(a12==8))&&(a16==5))) [L384] COND FALSE !(((a12==8)&&((input==5)&&((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==15))&&(a16==6))&&(a21==1))||(!(a21==1)&&((a16==4)&&(((a20==1)&&((a7==1)&&(a17==1)))&&(a8==13)))))))) [L393] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L396] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L399] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==4))&&(a21==1))) [L402] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==6))&&(a21==1))) [L405] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L408] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==5))&&(a21==1))) [L411] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==5))&&(a21==1))) [L414] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L417] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==4))&&(a21==1))) [L420] COND FALSE !(((((((!(a17==1)&&(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==5))&&(a21==1))) [L423] COND TRUE ((((((!(a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==4))&&(a21==1)) [L424] CALL reach_error() [L4] __assert_fail("0", "Problem01_label38.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: 65.3s, OverallIterations: 14, TraceHistogramMax: 5, AutomataDifference: 28.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 433 SDtfs, 5232 SDslu, 517 SDs, 0 SdLazy, 12353 SolverSat, 1333 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 223 GetRequests, 110 SyntacticMatches, 7 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2390occurred in iteration=13, 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, 13 MinimizatonAttempts, 2803 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 34.5s InterpolantComputationTime, 2204 NumberOfCodeBlocks, 2204 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1922 ConstructedInterpolants, 0 QuantifiedInterpolants, 1137484 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 2 PerfectInterpolantSequences, 1009/1034 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...