/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=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label45.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 15:38:16,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 15:38:16,664 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 15:38:16,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 15:38:16,714 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 15:38:16,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 15:38:16,724 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 15:38:16,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 15:38:16,733 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 15:38:16,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 15:38:16,741 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 15:38:16,743 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 15:38:16,743 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 15:38:16,744 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 15:38:16,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 15:38:16,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 15:38:16,748 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 15:38:16,749 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 15:38:16,751 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 15:38:16,753 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 15:38:16,755 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 15:38:16,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 15:38:16,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 15:38:16,759 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 15:38:16,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 15:38:16,763 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 15:38:16,763 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 15:38:16,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 15:38:16,779 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 15:38:16,780 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 15:38:16,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 15:38:16,782 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 15:38:16,783 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 15:38:16,784 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 15:38:16,785 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 15:38:16,785 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 15:38:16,786 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 15:38:16,786 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 15:38:16,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 15:38:16,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 15:38:16,788 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 15:38:16,789 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 [2020-10-27 15:38:16,815 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 15:38:16,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 15:38:16,818 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 15:38:16,818 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 15:38:16,818 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 15:38:16,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 15:38:16,819 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 15:38:16,819 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 15:38:16,819 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 15:38:16,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 15:38:16,819 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 15:38:16,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 15:38:16,820 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 15:38:16,820 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 15:38:16,820 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 15:38:16,820 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 15:38:16,821 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 15:38:16,821 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 15:38:16,821 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 15:38:16,821 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 15:38:16,821 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 15:38:16,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 15:38:16,822 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 15:38:16,822 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 15:38:16,822 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 15:38:16,822 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 15:38:16,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 15:38:16,823 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 15:38:16,823 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 15:38:16,823 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 15:38:17,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 15:38:17,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 15:38:17,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 15:38:17,229 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 15:38:17,229 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 15:38:17,232 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label45.c [2020-10-27 15:38:17,333 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f98b35153/5d16ca41892846a1af5af442cb4bb325/FLAG09d069c61 [2020-10-27 15:38:18,179 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 15:38:18,180 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label45.c [2020-10-27 15:38:18,196 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f98b35153/5d16ca41892846a1af5af442cb4bb325/FLAG09d069c61 [2020-10-27 15:38:18,378 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f98b35153/5d16ca41892846a1af5af442cb4bb325 [2020-10-27 15:38:18,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 15:38:18,390 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 15:38:18,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 15:38:18,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 15:38:18,399 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 15:38:18,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:38:18" (1/1) ... [2020-10-27 15:38:18,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8d7ca83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:18, skipping insertion in model container [2020-10-27 15:38:18,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:38:18" (1/1) ... [2020-10-27 15:38:18,416 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 15:38:18,487 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 15:38:18,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:38:18,929 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 15:38:19,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:38:19,065 INFO L208 MainTranslator]: Completed translation [2020-10-27 15:38:19,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:19 WrapperNode [2020-10-27 15:38:19,066 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 15:38:19,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 15:38:19,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 15:38:19,067 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 15:38:19,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:19" (1/1) ... [2020-10-27 15:38:19,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:19" (1/1) ... [2020-10-27 15:38:19,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:19" (1/1) ... [2020-10-27 15:38:19,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:19" (1/1) ... [2020-10-27 15:38:19,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:19" (1/1) ... [2020-10-27 15:38:19,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:19" (1/1) ... [2020-10-27 15:38:19,207 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:19" (1/1) ... [2020-10-27 15:38:19,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 15:38:19,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 15:38:19,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 15:38:19,224 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 15:38:19,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:19" (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 [2020-10-27 15:38:19,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 15:38:19,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 15:38:19,317 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 15:38:19,317 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-27 15:38:19,317 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 15:38:19,318 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-27 15:38:19,318 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 15:38:19,318 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 15:38:19,318 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 15:38:19,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 15:38:19,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 15:38:19,319 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 15:38:19,319 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 15:38:19,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 15:38:19,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 15:38:19,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 15:38:19,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 15:38:19,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 15:38:19,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 15:38:20,631 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 15:38:20,632 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 15:38:20,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:38:20 BoogieIcfgContainer [2020-10-27 15:38:20,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 15:38:20,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 15:38:20,640 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 15:38:20,645 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 15:38:20,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:38:18" (1/3) ... [2020-10-27 15:38:20,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a466071 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:38:20, skipping insertion in model container [2020-10-27 15:38:20,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:19" (2/3) ... [2020-10-27 15:38:20,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a466071 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:38:20, skipping insertion in model container [2020-10-27 15:38:20,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:38:20" (3/3) ... [2020-10-27 15:38:20,651 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label45.c [2020-10-27 15:38:20,666 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 15:38:20,672 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 15:38:20,689 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 15:38:20,740 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 15:38:20,740 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 15:38:20,741 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 15:38:20,741 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 15:38:20,741 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 15:38:20,741 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 15:38:20,741 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 15:38:20,742 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 15:38:20,779 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-10-27 15:38:20,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-27 15:38:20,800 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:38:20,801 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] [2020-10-27 15:38:20,801 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:38:20,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:38:20,813 INFO L82 PathProgramCache]: Analyzing trace with hash -836207915, now seen corresponding path program 1 times [2020-10-27 15:38:20,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:38:20,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [473669430] [2020-10-27 15:38:20,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:38:21,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:21,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:21,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:22,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:22,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-27 15:38:22,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:38:22,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1816 [2020-10-27 15:38:22,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:22,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 15:38:22,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 15:38:22,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 15:38:22,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 15:38:23,595 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 39 [2020-10-27 15:38:23,734 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 37 [2020-10-27 15:38:24,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:38:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:24,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:24,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:24,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:38:24,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:24,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 15:38:24,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:24,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:38:24,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:24,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 15:38:24,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:24,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:38:24,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [473669430] [2020-10-27 15:38:24,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:38:24,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 15:38:24,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752620108] [2020-10-27 15:38:24,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 15:38:24,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:38:24,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 15:38:24,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-27 15:38:24,324 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 11 states. [2020-10-27 15:38:24,572 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-27 15:38:24,788 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 15:38:24,961 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 15:38:25,151 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 15:38:25,571 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 118 [2020-10-27 15:38:25,985 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 115 [2020-10-27 15:38:26,853 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 111 [2020-10-27 15:38:27,551 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 106 [2020-10-27 15:38:28,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:38:28,934 INFO L93 Difference]: Finished difference Result 541 states and 898 transitions. [2020-10-27 15:38:28,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 15:38:28,937 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 89 [2020-10-27 15:38:28,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:38:28,953 INFO L225 Difference]: With dead ends: 541 [2020-10-27 15:38:28,953 INFO L226 Difference]: Without dead ends: 237 [2020-10-27 15:38:28,962 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2020-10-27 15:38:28,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-10-27 15:38:29,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 234. [2020-10-27 15:38:29,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-10-27 15:38:29,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 324 transitions. [2020-10-27 15:38:29,037 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 324 transitions. Word has length 89 [2020-10-27 15:38:29,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:38:29,038 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 324 transitions. [2020-10-27 15:38:29,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 15:38:29,039 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 324 transitions. [2020-10-27 15:38:29,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-27 15:38:29,055 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:38:29,055 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] [2020-10-27 15:38:29,056 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 15:38:29,056 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:38:29,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:38:29,058 INFO L82 PathProgramCache]: Analyzing trace with hash -41358442, now seen corresponding path program 1 times [2020-10-27 15:38:29,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:38:29,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [826139381] [2020-10-27 15:38:29,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:38:29,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:29,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:29,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:29,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:31,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:31,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-27 15:38:31,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:38:31,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2263 [2020-10-27 15:38:31,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:31,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:38:31,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 15:38:31,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 15:38:31,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:38:31,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:38:31,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:31,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:31,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:31,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:38:31,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:31,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 15:38:31,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:31,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:38:31,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:31,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:38:31,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:31,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:38:31,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:31,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:31,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:31,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 15:38:31,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:31,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 15:38:31,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:31,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:38:31,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:31,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 15:38:31,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:31,653 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:38:31,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [826139381] [2020-10-27 15:38:31,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:38:31,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:38:31,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691624678] [2020-10-27 15:38:31,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:38:31,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:38:31,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:38:31,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:38:31,658 INFO L87 Difference]: Start difference. First operand 234 states and 324 transitions. Second operand 5 states. [2020-10-27 15:38:33,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:38:33,258 INFO L93 Difference]: Finished difference Result 614 states and 877 transitions. [2020-10-27 15:38:33,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:38:33,258 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 98 [2020-10-27 15:38:33,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:38:33,264 INFO L225 Difference]: With dead ends: 614 [2020-10-27 15:38:33,265 INFO L226 Difference]: Without dead ends: 386 [2020-10-27 15:38:33,266 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:38:33,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2020-10-27 15:38:33,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 383. [2020-10-27 15:38:33,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2020-10-27 15:38:33,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 534 transitions. [2020-10-27 15:38:33,319 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 534 transitions. Word has length 98 [2020-10-27 15:38:33,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:38:33,322 INFO L481 AbstractCegarLoop]: Abstraction has 383 states and 534 transitions. [2020-10-27 15:38:33,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:38:33,323 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 534 transitions. [2020-10-27 15:38:33,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-27 15:38:33,326 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:38:33,329 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:38:33,329 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 15:38:33,329 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:38:33,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:38:33,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1888359138, now seen corresponding path program 1 times [2020-10-27 15:38:33,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:38:33,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746207213] [2020-10-27 15:38:33,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:38:33,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:33,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:33,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:33,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:33,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-27 15:38:33,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:38:33,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 598 [2020-10-27 15:38:33,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:33,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:38:33,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-27 15:38:33,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 15:38:33,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:34,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:38:34,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:34,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:34,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:34,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:38:34,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:34,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 15:38:34,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:34,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:38:34,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:34,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:38:34,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:34,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:38:34,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:34,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:34,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:34,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 15:38:34,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:34,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:38:34,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:34,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:38:34,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:34,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:38:34,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:34,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-27 15:38:34,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:34,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:34,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:34,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:38:34,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:34,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:38:34,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:34,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:38:34,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:34,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 15:38:34,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:34,195 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-27 15:38:34,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746207213] [2020-10-27 15:38:34,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:38:34,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:38:34,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718424112] [2020-10-27 15:38:34,196 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:38:34,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:38:34,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:38:34,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:38:34,198 INFO L87 Difference]: Start difference. First operand 383 states and 534 transitions. Second operand 5 states. [2020-10-27 15:38:36,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:38:36,059 INFO L93 Difference]: Finished difference Result 1057 states and 1520 transitions. [2020-10-27 15:38:36,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:38:36,060 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 106 [2020-10-27 15:38:36,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:38:36,066 INFO L225 Difference]: With dead ends: 1057 [2020-10-27 15:38:36,066 INFO L226 Difference]: Without dead ends: 680 [2020-10-27 15:38:36,068 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:38:36,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2020-10-27 15:38:36,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 677. [2020-10-27 15:38:36,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 677 states. [2020-10-27 15:38:36,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 927 transitions. [2020-10-27 15:38:36,129 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 927 transitions. Word has length 106 [2020-10-27 15:38:36,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:38:36,134 INFO L481 AbstractCegarLoop]: Abstraction has 677 states and 927 transitions. [2020-10-27 15:38:36,134 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:38:36,135 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 927 transitions. [2020-10-27 15:38:36,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-27 15:38:36,139 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:38:36,140 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:38:36,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 15:38:36,141 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:38:36,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:38:36,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1756229477, now seen corresponding path program 1 times [2020-10-27 15:38:36,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:38:36,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1631824942] [2020-10-27 15:38:36,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:38:36,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:36,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:36,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:36,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:37,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:37,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-27 15:38:37,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:38:37,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1809 [2020-10-27 15:38:37,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:37,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:38:37,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-27 15:38:37,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 15:38:37,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:38,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:38:38,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:38,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:38,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:38,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:38:38,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:38,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 15:38:38,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:38,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:38:38,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:38,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:38:38,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:38,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:38:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:38,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:38,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:38,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 15:38:38,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:38,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 15:38:38,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:38,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:38:38,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:38,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:38:38,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:38,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-27 15:38:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:38,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:38,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:38,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 15:38:38,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:38,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 15:38:38,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:38,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:38:38,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:38,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 15:38:38,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:38,295 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-27 15:38:38,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1631824942] [2020-10-27 15:38:38,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:38:38,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-27 15:38:38,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720081063] [2020-10-27 15:38:38,297 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 15:38:38,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:38:38,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 15:38:38,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:38:38,299 INFO L87 Difference]: Start difference. First operand 677 states and 927 transitions. Second operand 6 states. [2020-10-27 15:38:38,895 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 15:38:40,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:38:40,840 INFO L93 Difference]: Finished difference Result 2081 states and 2901 transitions. [2020-10-27 15:38:40,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 15:38:40,841 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 120 [2020-10-27 15:38:40,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:38:40,851 INFO L225 Difference]: With dead ends: 2081 [2020-10-27 15:38:40,851 INFO L226 Difference]: Without dead ends: 819 [2020-10-27 15:38:40,855 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-27 15:38:40,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2020-10-27 15:38:40,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 816. [2020-10-27 15:38:40,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 816 states. [2020-10-27 15:38:40,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1048 transitions. [2020-10-27 15:38:40,904 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1048 transitions. Word has length 120 [2020-10-27 15:38:40,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:38:40,906 INFO L481 AbstractCegarLoop]: Abstraction has 816 states and 1048 transitions. [2020-10-27 15:38:40,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 15:38:40,906 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1048 transitions. [2020-10-27 15:38:40,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-27 15:38:40,909 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:38:40,909 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2020-10-27 15:38:40,909 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 15:38:40,910 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:38:40,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:38:40,910 INFO L82 PathProgramCache]: Analyzing trace with hash -2030945591, now seen corresponding path program 1 times [2020-10-27 15:38:40,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:38:40,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1642507428] [2020-10-27 15:38:40,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:38:40,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:40,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:41,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:41,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:41,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-27 15:38:41,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:38:41,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 635 [2020-10-27 15:38:41,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:41,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:38:41,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 15:38:41,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-27 15:38:41,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:41,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:38:41,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:41,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:41,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:41,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:38:41,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:41,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 15:38:41,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:41,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:38:41,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:41,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:38:41,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:41,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:38:41,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:41,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:41,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:41,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 15:38:41,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:41,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 15:38:41,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:41,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:38:41,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:41,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 15:38:41,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:41,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-27 15:38:41,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:41,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:41,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:41,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 15:38:41,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:41,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-27 15:38:41,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:41,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:38:41,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 15:38:41,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 15:38:41,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:41,913 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-27 15:38:41,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1642507428] [2020-10-27 15:38:41,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:38:41,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 15:38:41,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814557260] [2020-10-27 15:38:41,916 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 15:38:41,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:38:41,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 15:38:41,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-27 15:38:41,918 INFO L87 Difference]: Start difference. First operand 816 states and 1048 transitions. Second operand 7 states. [2020-10-27 15:38:43,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:38:43,817 INFO L93 Difference]: Finished difference Result 2082 states and 2742 transitions. [2020-10-27 15:38:43,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 15:38:43,819 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 122 [2020-10-27 15:38:43,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:38:43,831 INFO L225 Difference]: With dead ends: 2082 [2020-10-27 15:38:43,831 INFO L226 Difference]: Without dead ends: 1272 [2020-10-27 15:38:43,835 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-27 15:38:43,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2020-10-27 15:38:43,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 1265. [2020-10-27 15:38:43,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1265 states. [2020-10-27 15:38:43,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1601 transitions. [2020-10-27 15:38:43,922 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1601 transitions. Word has length 122 [2020-10-27 15:38:43,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:38:43,922 INFO L481 AbstractCegarLoop]: Abstraction has 1265 states and 1601 transitions. [2020-10-27 15:38:43,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 15:38:43,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1601 transitions. [2020-10-27 15:38:43,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-27 15:38:43,930 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:38:43,930 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:38:43,930 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 15:38:43,931 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:38:43,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:38:43,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1152481340, now seen corresponding path program 1 times [2020-10-27 15:38:43,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:38:43,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1858459769] [2020-10-27 15:38:43,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:38:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:43,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:44,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:45,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:45,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-27 15:38:45,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:38:45,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1156 [2020-10-27 15:38:45,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:45,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:38:45,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-27 15:38:45,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-27 15:38:45,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:45,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:38:45,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:45,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:45,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:45,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:38:45,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:45,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:38:45,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:45,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:38:45,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:45,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:38:45,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:45,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:38:45,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:45,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:45,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:45,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 15:38:45,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:45,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 15:38:45,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:45,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:38:45,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:45,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:38:45,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:45,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-27 15:38:45,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:45,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:45,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:45,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 15:38:45,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:45,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 15:38:45,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:45,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:38:45,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:45,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 15:38:45,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:45,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 15:38:45,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:45,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:45,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:45,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 15:38:45,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:45,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-27 15:38:45,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:45,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:38:45,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 15:38:45,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 15:38:45,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:45,463 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 84 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-27 15:38:45,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1858459769] [2020-10-27 15:38:45,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:38:45,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 15:38:45,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562195066] [2020-10-27 15:38:45,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 15:38:45,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:38:45,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 15:38:45,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-27 15:38:45,467 INFO L87 Difference]: Start difference. First operand 1265 states and 1601 transitions. Second operand 7 states. [2020-10-27 15:38:47,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:38:47,568 INFO L93 Difference]: Finished difference Result 2560 states and 3293 transitions. [2020-10-27 15:38:47,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 15:38:47,574 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 150 [2020-10-27 15:38:47,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:38:47,583 INFO L225 Difference]: With dead ends: 2560 [2020-10-27 15:38:47,583 INFO L226 Difference]: Without dead ends: 1301 [2020-10-27 15:38:47,587 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-27 15:38:47,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2020-10-27 15:38:47,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 984. [2020-10-27 15:38:47,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 984 states. [2020-10-27 15:38:47,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1179 transitions. [2020-10-27 15:38:47,633 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1179 transitions. Word has length 150 [2020-10-27 15:38:47,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:38:47,633 INFO L481 AbstractCegarLoop]: Abstraction has 984 states and 1179 transitions. [2020-10-27 15:38:47,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 15:38:47,633 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1179 transitions. [2020-10-27 15:38:47,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-27 15:38:47,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:38:47,637 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-27 15:38:47,637 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 15:38:47,638 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:38:47,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:38:47,638 INFO L82 PathProgramCache]: Analyzing trace with hash 2100895743, now seen corresponding path program 1 times [2020-10-27 15:38:47,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:38:47,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [147389199] [2020-10-27 15:38:47,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:38:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:47,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:47,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:47,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:47,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:49,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:52,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:52,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-27 15:38:52,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 15:38:52,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-27 15:38:52,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:52,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:38:52,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-27 15:38:52,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-27 15:38:52,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:52,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:38:52,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:52,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:52,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:52,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:38:52,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:52,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 15:38:52,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:52,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:38:52,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:52,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:38:52,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:52,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:38:52,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:52,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:52,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:52,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 15:38:52,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:52,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:38:52,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:52,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:38:52,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:52,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:38:52,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:52,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-27 15:38:52,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:52,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:52,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:52,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:38:52,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:52,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 15:38:52,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:52,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:38:52,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:52,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:38:52,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:52,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-27 15:38:52,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:52,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:52,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:52,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-27 15:38:52,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:52,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 15:38:52,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:52,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:38:52,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:52,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 15:38:52,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:38:52,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 15:38:52,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:52,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:52,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:52,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 15:38:52,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:52,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-27 15:38:52,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:52,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:38:52,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 15:38:52,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 15:38:52,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:53,058 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 93 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-27 15:38:53,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [147389199] [2020-10-27 15:38:53,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:38:53,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 15:38:53,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402314835] [2020-10-27 15:38:53,061 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 15:38:53,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:38:53,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 15:38:53,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 15:38:53,062 INFO L87 Difference]: Start difference. First operand 984 states and 1179 transitions. Second operand 7 states. [2020-10-27 15:38:55,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:38:55,321 INFO L93 Difference]: Finished difference Result 2308 states and 2916 transitions. [2020-10-27 15:38:55,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 15:38:55,321 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 153 [2020-10-27 15:38:55,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:38:55,330 INFO L225 Difference]: With dead ends: 2308 [2020-10-27 15:38:55,330 INFO L226 Difference]: Without dead ends: 1330 [2020-10-27 15:38:55,334 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-27 15:38:55,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1330 states. [2020-10-27 15:38:55,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1330 to 1292. [2020-10-27 15:38:55,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1292 states. [2020-10-27 15:38:55,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 1528 transitions. [2020-10-27 15:38:55,388 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 1528 transitions. Word has length 153 [2020-10-27 15:38:55,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:38:55,388 INFO L481 AbstractCegarLoop]: Abstraction has 1292 states and 1528 transitions. [2020-10-27 15:38:55,388 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 15:38:55,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 1528 transitions. [2020-10-27 15:38:55,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-27 15:38:55,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:38:55,393 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-27 15:38:55,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 15:38:55,394 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:38:55,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:38:55,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1348433236, now seen corresponding path program 1 times [2020-10-27 15:38:55,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:38:55,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1395496578] [2020-10-27 15:38:55,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:38:55,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:55,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:55,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:55,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:58,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:58,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-27 15:38:58,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:38:58,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2756 [2020-10-27 15:38:58,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:58,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:38:58,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-10-27 15:38:58,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-27 15:38:58,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:58,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:38:58,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:58,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:58,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:58,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:38:58,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:58,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 15:38:58,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:58,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:38:58,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:58,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:38:58,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:58,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:38:58,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:58,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:58,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:58,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 15:38:58,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:58,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 15:38:58,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:58,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:38:58,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:58,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:38:58,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:58,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-27 15:38:58,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:58,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:58,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:58,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 15:38:58,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:58,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-27 15:38:58,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:58,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:38:58,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:38:58,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 15:38:58,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:58,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 15:38:58,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:38:58,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:38:58,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:38:58,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 15:38:58,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:38:58,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 15:38:58,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:38:58,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:38:58,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 15:38:58,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 15:38:58,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:38:58,533 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 92 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-27 15:38:58,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1395496578] [2020-10-27 15:38:58,535 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:38:58,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 15:38:58,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211493143] [2020-10-27 15:38:58,536 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 15:38:58,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:38:58,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 15:38:58,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 15:38:58,542 INFO L87 Difference]: Start difference. First operand 1292 states and 1528 transitions. Second operand 7 states. [2020-10-27 15:39:00,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:39:00,573 INFO L93 Difference]: Finished difference Result 2755 states and 3290 transitions. [2020-10-27 15:39:00,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 15:39:00,576 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 158 [2020-10-27 15:39:00,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:39:00,584 INFO L225 Difference]: With dead ends: 2755 [2020-10-27 15:39:00,584 INFO L226 Difference]: Without dead ends: 1469 [2020-10-27 15:39:00,588 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-27 15:39:00,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2020-10-27 15:39:00,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1442. [2020-10-27 15:39:00,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1442 states. [2020-10-27 15:39:00,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1442 states to 1442 states and 1613 transitions. [2020-10-27 15:39:00,641 INFO L78 Accepts]: Start accepts. Automaton has 1442 states and 1613 transitions. Word has length 158 [2020-10-27 15:39:00,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:39:00,642 INFO L481 AbstractCegarLoop]: Abstraction has 1442 states and 1613 transitions. [2020-10-27 15:39:00,642 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 15:39:00,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1442 states and 1613 transitions. [2020-10-27 15:39:00,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-27 15:39:00,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:39:00,647 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-27 15:39:00,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 15:39:00,647 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:39:00,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:39:00,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1299628110, now seen corresponding path program 1 times [2020-10-27 15:39:00,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:39:00,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [363431433] [2020-10-27 15:39:00,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:39:00,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:00,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:00,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:00,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-27 15:39:00,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:39:00,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-10-27 15:39:00,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:00,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:39:00,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 15:39:00,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-27 15:39:00,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:39:01,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:39:01,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:01,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:01,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:01,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:39:01,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:39:01,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 15:39:01,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:01,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:39:01,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:39:01,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:39:01,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:01,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:39:01,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:01,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:01,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:01,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 15:39:01,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:39:01,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 15:39:01,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:01,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:39:01,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:39:01,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 15:39:01,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:01,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-27 15:39:01,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:01,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:01,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:01,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 15:39:01,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:39:01,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-27 15:39:01,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:01,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:39:01,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 15:39:01,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-27 15:39:01,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:01,295 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 73 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-27 15:39:01,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [363431433] [2020-10-27 15:39:01,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:39:01,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 15:39:01,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322101029] [2020-10-27 15:39:01,298 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 15:39:01,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:39:01,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 15:39:01,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 15:39:01,299 INFO L87 Difference]: Start difference. First operand 1442 states and 1613 transitions. Second operand 7 states. [2020-10-27 15:39:03,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:39:03,122 INFO L93 Difference]: Finished difference Result 2891 states and 3236 transitions. [2020-10-27 15:39:03,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 15:39:03,123 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 162 [2020-10-27 15:39:03,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:39:03,132 INFO L225 Difference]: With dead ends: 2891 [2020-10-27 15:39:03,133 INFO L226 Difference]: Without dead ends: 1149 [2020-10-27 15:39:03,137 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-27 15:39:03,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1149 states. [2020-10-27 15:39:03,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1149 to 1136. [2020-10-27 15:39:03,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1136 states. [2020-10-27 15:39:03,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1226 transitions. [2020-10-27 15:39:03,176 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1226 transitions. Word has length 162 [2020-10-27 15:39:03,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:39:03,176 INFO L481 AbstractCegarLoop]: Abstraction has 1136 states and 1226 transitions. [2020-10-27 15:39:03,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 15:39:03,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1226 transitions. [2020-10-27 15:39:03,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-27 15:39:03,180 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:39:03,180 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-27 15:39:03,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 15:39:03,181 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:39:03,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:39:03,182 INFO L82 PathProgramCache]: Analyzing trace with hash -683282922, now seen corresponding path program 1 times [2020-10-27 15:39:03,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:39:03,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1242566357] [2020-10-27 15:39:03,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:39:03,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:03,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:03,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:03,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-27 15:39:03,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:39:03,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-10-27 15:39:03,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:03,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:39:03,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-27 15:39:03,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-27 15:39:03,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:03,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:39:03,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:03,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:03,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:03,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:39:03,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:39:03,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:39:03,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:03,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:39:03,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:39:03,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:39:03,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:03,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:39:03,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:03,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:03,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:03,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 15:39:03,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:39:03,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 15:39:03,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:03,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:39:03,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:39:03,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 15:39:03,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:03,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-27 15:39:03,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:03,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:03,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:03,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 15:39:03,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:39:03,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-27 15:39:03,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:03,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:39:03,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 15:39:03,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-27 15:39:03,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:03,925 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 81 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-27 15:39:03,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1242566357] [2020-10-27 15:39:03,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:39:03,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 15:39:03,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828680099] [2020-10-27 15:39:03,927 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 15:39:03,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:39:03,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 15:39:03,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-27 15:39:03,928 INFO L87 Difference]: Start difference. First operand 1136 states and 1226 transitions. Second operand 7 states. [2020-10-27 15:39:04,161 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-27 15:39:05,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:39:05,801 INFO L93 Difference]: Finished difference Result 2882 states and 3196 transitions. [2020-10-27 15:39:05,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 15:39:05,802 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 166 [2020-10-27 15:39:05,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:39:05,810 INFO L225 Difference]: With dead ends: 2882 [2020-10-27 15:39:05,811 INFO L226 Difference]: Without dead ends: 1751 [2020-10-27 15:39:05,814 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-27 15:39:05,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2020-10-27 15:39:05,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 1733. [2020-10-27 15:39:05,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1733 states. [2020-10-27 15:39:05,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1733 states to 1733 states and 1876 transitions. [2020-10-27 15:39:05,875 INFO L78 Accepts]: Start accepts. Automaton has 1733 states and 1876 transitions. Word has length 166 [2020-10-27 15:39:05,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:39:05,876 INFO L481 AbstractCegarLoop]: Abstraction has 1733 states and 1876 transitions. [2020-10-27 15:39:05,876 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 15:39:05,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1733 states and 1876 transitions. [2020-10-27 15:39:05,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-27 15:39:05,883 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:39:05,883 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-27 15:39:05,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 15:39:05,884 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:39:05,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:39:05,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1667638046, now seen corresponding path program 1 times [2020-10-27 15:39:05,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:39:05,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [475568647] [2020-10-27 15:39:05,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:39:05,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:05,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:06,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:06,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:06,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:09,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:10,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:10,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-10-27 15:39:10,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 15:39:10,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-27 15:39:10,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:10,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 15:39:10,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-27 15:39:10,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-10-27 15:39:10,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:11,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:39:11,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:11,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:11,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:11,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:39:11,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:39:11,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 15:39:11,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:11,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:39:11,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:39:11,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:39:11,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:11,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:39:11,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:11,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:11,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:11,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-27 15:39:11,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:39:11,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 15:39:11,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:11,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:39:11,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:39:11,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:39:11,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:11,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 15:39:11,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:11,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:11,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:11,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:39:11,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:39:11,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 15:39:11,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:11,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:39:11,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:39:11,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:39:11,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:11,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 15:39:11,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:11,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:11,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:11,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-27 15:39:11,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:39:11,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 15:39:11,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:11,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:39:11,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:39:11,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 15:39:11,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:11,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 15:39:11,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:11,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:11,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:11,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:11,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 15:39:11,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:39:11,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-27 15:39:11,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:11,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:39:11,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 15:39:11,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-27 15:39:11,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:11,501 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 118 proven. 63 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-27 15:39:11,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [475568647] [2020-10-27 15:39:11,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:39:11,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 15:39:11,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017888785] [2020-10-27 15:39:11,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 15:39:11,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:39:11,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 15:39:11,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-27 15:39:11,509 INFO L87 Difference]: Start difference. First operand 1733 states and 1876 transitions. Second operand 8 states. [2020-10-27 15:39:11,753 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 15:39:12,345 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 15:39:13,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:39:13,674 INFO L93 Difference]: Finished difference Result 4226 states and 4598 transitions. [2020-10-27 15:39:13,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 15:39:13,678 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 218 [2020-10-27 15:39:13,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:39:13,688 INFO L225 Difference]: With dead ends: 4226 [2020-10-27 15:39:13,688 INFO L226 Difference]: Without dead ends: 2207 [2020-10-27 15:39:13,693 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-27 15:39:13,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2207 states. [2020-10-27 15:39:13,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2207 to 1571. [2020-10-27 15:39:13,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1571 states. [2020-10-27 15:39:13,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 1654 transitions. [2020-10-27 15:39:13,747 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 1654 transitions. Word has length 218 [2020-10-27 15:39:13,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:39:13,747 INFO L481 AbstractCegarLoop]: Abstraction has 1571 states and 1654 transitions. [2020-10-27 15:39:13,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 15:39:13,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 1654 transitions. [2020-10-27 15:39:13,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-10-27 15:39:13,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:39:13,755 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:39:13,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 15:39:13,755 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:39:13,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:39:13,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1426452941, now seen corresponding path program 1 times [2020-10-27 15:39:13,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:39:13,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [146066134] [2020-10-27 15:39:13,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:39:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:13,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:13,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:13,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:14,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:18,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:18,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-10-27 15:39:18,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:39:18,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4626 [2020-10-27 15:39:18,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:18,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:39:18,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 134 [2020-10-27 15:39:18,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-27 15:39:18,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:18,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:39:18,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:18,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:18,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:18,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:39:18,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:39:18,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:39:18,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:18,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:39:18,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:39:18,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:39:18,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:18,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:39:18,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:18,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:18,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:18,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-27 15:39:18,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:39:18,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 15:39:18,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:18,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:39:18,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:39:18,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:39:18,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:18,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 15:39:18,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:18,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:18,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:18,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:39:18,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:39:18,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 15:39:18,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:18,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:39:18,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:39:18,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:39:18,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:18,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 15:39:18,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:18,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:18,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:18,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-27 15:39:18,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:39:18,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 15:39:18,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:18,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:39:18,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:39:18,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:39:18,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:18,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 15:39:18,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:18,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:18,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:18,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-27 15:39:18,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:39:18,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-27 15:39:18,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:18,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:39:18,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:39:18,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-27 15:39:18,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:18,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-27 15:39:18,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:18,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:18,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:18,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 15:39:18,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:39:18,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 15:39:18,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:18,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:39:18,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 15:39:18,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 15:39:18,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:18,831 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 208 proven. 2 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2020-10-27 15:39:18,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [146066134] [2020-10-27 15:39:18,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:39:18,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 15:39:18,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426625913] [2020-10-27 15:39:18,833 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 15:39:18,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:39:18,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 15:39:18,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 15:39:18,835 INFO L87 Difference]: Start difference. First operand 1571 states and 1654 transitions. Second operand 7 states. [2020-10-27 15:39:19,315 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-27 15:39:20,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:39:20,695 INFO L93 Difference]: Finished difference Result 3447 states and 3645 transitions. [2020-10-27 15:39:20,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 15:39:20,700 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 232 [2020-10-27 15:39:20,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:39:20,708 INFO L225 Difference]: With dead ends: 3447 [2020-10-27 15:39:20,709 INFO L226 Difference]: Without dead ends: 1734 [2020-10-27 15:39:20,713 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-27 15:39:20,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2020-10-27 15:39:20,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1717. [2020-10-27 15:39:20,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1717 states. [2020-10-27 15:39:20,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 1800 transitions. [2020-10-27 15:39:20,767 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 1800 transitions. Word has length 232 [2020-10-27 15:39:20,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:39:20,768 INFO L481 AbstractCegarLoop]: Abstraction has 1717 states and 1800 transitions. [2020-10-27 15:39:20,768 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 15:39:20,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 1800 transitions. [2020-10-27 15:39:20,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-10-27 15:39:20,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:39:20,775 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2020-10-27 15:39:20,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 15:39:20,776 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:39:20,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:39:20,776 INFO L82 PathProgramCache]: Analyzing trace with hash 919939236, now seen corresponding path program 1 times [2020-10-27 15:39:20,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:39:20,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1948238752] [2020-10-27 15:39:20,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:39:20,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:20,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:20,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:20,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:22,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:22,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-10-27 15:39:22,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:39:22,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1566 [2020-10-27 15:39:22,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:22,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:39:22,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-27 15:39:22,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 15:39:22,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:22,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:39:22,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:22,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:22,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:22,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:39:22,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:39:22,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 15:39:22,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:22,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:39:22,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:39:22,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:39:22,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:22,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:39:22,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:22,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:22,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:22,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-27 15:39:22,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:39:22,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 15:39:22,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:22,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:39:22,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:39:22,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:39:22,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:22,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 15:39:22,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:22,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:22,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:22,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:39:22,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:39:22,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:39:22,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:22,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:39:22,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:39:22,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 15:39:22,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:22,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 15:39:22,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:22,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:22,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:22,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-27 15:39:22,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:39:22,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 15:39:22,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:22,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:39:22,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 15:39:22,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 15:39:22,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:22,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 15:39:22,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:22,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:22,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:22,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-27 15:39:22,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:39:22,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 15:39:22,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:22,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:39:22,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-27 15:39:22,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:39:22,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:22,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-27 15:39:22,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:22,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:22,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:22,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-27 15:39:22,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:39:22,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 15:39:22,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:22,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:39:22,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-27 15:39:22,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:39:22,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:22,776 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 179 proven. 42 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2020-10-27 15:39:22,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1948238752] [2020-10-27 15:39:22,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:39:22,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 15:39:22,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131339124] [2020-10-27 15:39:22,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 15:39:22,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:39:22,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 15:39:22,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 15:39:22,778 INFO L87 Difference]: Start difference. First operand 1717 states and 1800 transitions. Second operand 7 states. [2020-10-27 15:39:23,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:39:23,589 INFO L93 Difference]: Finished difference Result 2966 states and 3126 transitions. [2020-10-27 15:39:23,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 15:39:23,590 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 239 [2020-10-27 15:39:23,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:39:23,592 INFO L225 Difference]: With dead ends: 2966 [2020-10-27 15:39:23,592 INFO L226 Difference]: Without dead ends: 503 [2020-10-27 15:39:23,596 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-27 15:39:23,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2020-10-27 15:39:23,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 497. [2020-10-27 15:39:23,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 497 states. [2020-10-27 15:39:23,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 509 transitions. [2020-10-27 15:39:23,612 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 509 transitions. Word has length 239 [2020-10-27 15:39:23,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:39:23,613 INFO L481 AbstractCegarLoop]: Abstraction has 497 states and 509 transitions. [2020-10-27 15:39:23,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 15:39:23,613 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 509 transitions. [2020-10-27 15:39:23,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-27 15:39:23,616 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:39:23,617 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:39:23,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 15:39:23,617 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:39:23,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:39:23,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1193377960, now seen corresponding path program 1 times [2020-10-27 15:39:23,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:39:23,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2074459951] [2020-10-27 15:39:23,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:39:23,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:23,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:23,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:23,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-10-27 15:39:23,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:39:23,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-10-27 15:39:23,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:23,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:39:23,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-27 15:39:23,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-27 15:39:23,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:24,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:39:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:24,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:24,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:24,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:39:24,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:39:24,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:39:24,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:24,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:39:24,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:39:24,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:39:24,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:24,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:39:24,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:24,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:24,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:24,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-27 15:39:24,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:39:24,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 15:39:24,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:24,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:39:24,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:39:24,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:39:24,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:24,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 15:39:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:24,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:24,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:24,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-27 15:39:24,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:39:24,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-27 15:39:24,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:24,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:39:24,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:39:24,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-27 15:39:24,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:24,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-27 15:39:24,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:39:24,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:39:24,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:39:24,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 15:39:24,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:39:24,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 15:39:24,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:39:24,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:39:24,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 15:39:24,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 15:39:24,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:39:24,351 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 190 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-10-27 15:39:24,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2074459951] [2020-10-27 15:39:24,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:39:24,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 15:39:24,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423457023] [2020-10-27 15:39:24,352 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 15:39:24,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:39:24,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 15:39:24,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-27 15:39:24,353 INFO L87 Difference]: Start difference. First operand 497 states and 509 transitions. Second operand 8 states. [2020-10-27 15:39:26,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:39:26,327 INFO L93 Difference]: Finished difference Result 1087 states and 1123 transitions. [2020-10-27 15:39:26,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 15:39:26,328 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 241 [2020-10-27 15:39:26,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:39:26,330 INFO L225 Difference]: With dead ends: 1087 [2020-10-27 15:39:26,330 INFO L226 Difference]: Without dead ends: 792 [2020-10-27 15:39:26,331 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-27 15:39:26,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2020-10-27 15:39:26,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 789. [2020-10-27 15:39:26,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2020-10-27 15:39:26,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 811 transitions. [2020-10-27 15:39:26,353 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 811 transitions. Word has length 241 [2020-10-27 15:39:26,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:39:26,354 INFO L481 AbstractCegarLoop]: Abstraction has 789 states and 811 transitions. [2020-10-27 15:39:26,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 15:39:26,354 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 811 transitions. [2020-10-27 15:39:26,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-10-27 15:39:26,358 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:39:26,359 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:39:26,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-27 15:39:26,359 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:39:26,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:39:26,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1124640583, now seen corresponding path program 1 times [2020-10-27 15:39:26,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:39:26,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [984234703] [2020-10-27 15:39:26,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:39:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 15:39:26,411 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 15:39:26,411 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 15:39:26,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-27 15:39:26,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:39:26 BoogieIcfgContainer [2020-10-27 15:39:26,458 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 15:39:26,460 INFO L168 Benchmark]: Toolchain (without parser) took 68075.43 ms. Allocated memory was 159.4 MB in the beginning and 934.3 MB in the end (delta: 774.9 MB). Free memory was 132.4 MB in the beginning and 560.6 MB in the end (delta: -428.2 MB). Peak memory consumption was 346.9 MB. Max. memory is 8.0 GB. [2020-10-27 15:39:26,461 INFO L168 Benchmark]: CDTParser took 1.73 ms. Allocated memory is still 159.4 MB. Free memory is still 132.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 15:39:26,461 INFO L168 Benchmark]: CACSL2BoogieTranslator took 671.98 ms. Allocated memory is still 159.4 MB. Free memory was 131.8 MB in the beginning and 139.5 MB in the end (delta: -7.8 MB). Peak memory consumption was 31.0 MB. Max. memory is 8.0 GB. [2020-10-27 15:39:26,462 INFO L168 Benchmark]: Boogie Preprocessor took 156.14 ms. Allocated memory is still 159.4 MB. Free memory was 139.5 MB in the beginning and 134.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-27 15:39:26,463 INFO L168 Benchmark]: RCFGBuilder took 1411.33 ms. Allocated memory was 159.4 MB in the beginning and 199.2 MB in the end (delta: 39.8 MB). Free memory was 134.6 MB in the beginning and 158.3 MB in the end (delta: -23.7 MB). Peak memory consumption was 87.0 MB. Max. memory is 8.0 GB. [2020-10-27 15:39:26,463 INFO L168 Benchmark]: TraceAbstraction took 65819.18 ms. Allocated memory was 199.2 MB in the beginning and 934.3 MB in the end (delta: 735.1 MB). Free memory was 157.7 MB in the beginning and 560.6 MB in the end (delta: -402.9 MB). Peak memory consumption was 331.6 MB. Max. memory is 8.0 GB. [2020-10-27 15:39:26,466 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.73 ms. Allocated memory is still 159.4 MB. Free memory is still 132.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 671.98 ms. Allocated memory is still 159.4 MB. Free memory was 131.8 MB in the beginning and 139.5 MB in the end (delta: -7.8 MB). Peak memory consumption was 31.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 156.14 ms. Allocated memory is still 159.4 MB. Free memory was 139.5 MB in the beginning and 134.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1411.33 ms. Allocated memory was 159.4 MB in the beginning and 199.2 MB in the end (delta: 39.8 MB). Free memory was 134.6 MB in the beginning and 158.3 MB in the end (delta: -23.7 MB). Peak memory consumption was 87.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 65819.18 ms. Allocated memory was 199.2 MB in the beginning and 934.3 MB in the end (delta: 735.1 MB). Free memory was 157.7 MB in the beginning and 560.6 MB in the end (delta: -402.9 MB). Peak memory consumption was 331.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L9] int a= 1; [L10] int e= 5; [L11] int d= 4; [L12] int f= 6; [L13] int c= 3; [L16] int u = 21; [L17] int v = 22; [L18] int w = 23; [L19] int x = 24; [L20] int y = 25; [L21] int z = 26; [L24] int a25 = 0; [L25] int a11 = 0; [L26] int a28 = 7; [L27] int a19 = 1; [L28] int a21 = 1; [L29] int a17 = 8; [L605] int output = -1; [L608] COND TRUE 1 [L611] int input; [L612] input = __VERIFIER_nondet_int() [L613] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L616] CALL, EXPR calculate_output(input) [L32] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L37] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L40] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L44] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L49] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L52] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L56] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L61] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L67] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L71] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L76] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L84] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L93] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L97] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L101] COND FALSE !(((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1))) [L108] COND FALSE !((((a11==1)&&((((((a25==1)&&(a28==8))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7))))&&(input==6))&&(a19==1))&&(a17==9)))&&(a21==1))) [L115] COND FALSE !(((a17==8)&&((a21==1)&&(!(a11==1)&&(!(a19==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))))))) [L121] COND FALSE !((((((a21==1)&&((a28==10)&&((input==1)&&(a25==1))))&&!(a11==1))&&(a17==8))&&!(a19==1))) [L125] COND FALSE !((!(a11==1)&&(!(a19==1)&&(((a17==8)&&((input==6)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a28==8)&&(a25==1)))))&&(a21==1))))) [L132] COND FALSE !(((((a17==8)&&(!(a19==1)&&(((input==6)&&(a21==1))&&!(a25==1))))&&!(a11==1))&&(a28==9))) [L136] COND FALSE !((!(a11==1)&&((!(a25==1)&&(((a21==1)&&((input==1)&&(a19==1)))&&(a17==8)))&&(a28==11)))) [L141] COND FALSE !((((a11==1)&&(((a19==1)&&((a21==1)&&(((a25==1)||!(a25==1))&&(input==4))))&&(a17==9)))&&(a28==9))) [L145] COND FALSE !(((!(a11==1)&&((a28==9)&&(((!(a19==1)&&(input==5))&&!(a25==1))&&(a21==1))))&&(a17==8))) [L150] COND FALSE !(((!(a11==1)&&(((a17==8)&&(((((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))||((a28==8)&&(a25==1)))&&(input==3)))&&!(a19==1)))&&(a21==1))) [L156] COND FALSE !(((a21==1)&&(!(a19==1)&&((((input==5)&&(((a28==8)&&(a25==1))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7)))))&&!(a11==1))&&(a17==8))))) [L161] COND FALSE !((((a17==9)&&(((a28==8)&&(((input==1)&&(a19==1))&&!(a25==1)))&&(a11==1)))&&(a21==1))) [L167] COND FALSE !((((a21==1)&&((a19==1)&&((a28==7)&&((a17==8)&&(!(a25==1)&&(input==3))))))&&!(a11==1))) [L171] COND FALSE !(((a28==11)&&(((a17==8)&&((((input==6)&&(a21==1))&&(a19==1))&&!(a25==1)))&&!(a11==1)))) [L177] COND FALSE !(((!(a11==1)&&(((a17==8)&&((a21==1)&&((input==3)&&(a28==8))))&&(a19==1)))&&(a25==1))) [L181] COND FALSE !((((a21==1)&&(((a19==1)&&(((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))&&(input==4)))&&(a11==1)))&&(a17==9))) [L187] COND FALSE !((((!(a11==1)&&((a17==8)&&(((input==4)&&(a19==1))&&(a28==8))))&&(a21==1))&&(a25==1))) [L189] COND FALSE !(((a19==1)&&((((((input==4)&&(a21==1))&&(a28==9))&&!(a25==1))&&!(a11==1))&&(a17==8)))) [L191] COND FALSE !(((a17==8)&&((((((input==1)&&(a21==1))&&!(a11==1))&&(a19==1))&&!(a25==1))&&(a28==9)))) [L193] COND FALSE !((((((((input==4)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a21==1))&&(a17==8))&&(a28==10))&&(a19==1))) [L196] COND FALSE !(((!(a25==1)&&((a11==1)&&((a28==8)&&(((a17==9)&&(input==4))&&(a19==1)))))&&(a21==1))) [L200] COND FALSE !((!(a19==1)&&((a17==8)&&((a28==10)&&(((a25==1)&&(!(a11==1)&&(input==5)))&&(a21==1)))))) [L204] COND FALSE !((((((a21==1)&&((input==1)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))))&&(a17==8))&&!(a11==1))&&(a19==1))) [L214] COND FALSE !(((a21==1)&&((((a19==1)&&((a25==1)&&((a28==11)&&(input==6))))&&!(a11==1))&&(a17==8)))) [L217] COND FALSE !((!(a11==1)&&((a19==1)&&((a28==10)&&(((((a25==1)||!(a25==1))&&(input==5))&&(a17==8))&&(a21==1)))))) [L220] COND FALSE !((((((a17==9)&&((((a25==1)||!(a25==1))&&(input==6))&&(a11==1)))&&(a19==1))&&(a21==1))&&(a28==9))) [L225] COND FALSE !((((a17==8)&&(((((input==6)&&(a25==1))&&!(a19==1))&&!(a11==1))&&(a28==10)))&&(a21==1))) [L227] COND FALSE !(((!(a19==1)&&((a17==8)&&(!(a11==1)&&((input==1)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))))&&(a21==1))) [L234] COND FALSE !((((((((input==1)&&(a21==1))&&(a28==9))&&!(a19==1))&&!(a25==1))&&(a17==8))&&!(a11==1))) [L236] COND TRUE ((a17==8)&&(((!(a11==1)&&((!(a25==1)&&(input==4))&&(a19==1)))&&(a28==7))&&(a21==1))) [L237] a28 = 9 [L238] return 23; [L616] RET, EXPR calculate_output(input) [L616] output = calculate_output(input) [L608] COND TRUE 1 [L611] int input; [L612] input = __VERIFIER_nondet_int() [L613] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L616] CALL, EXPR calculate_output(input) [L32] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L37] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L40] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L44] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L49] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L52] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L56] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L61] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L67] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L71] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L76] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L84] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L93] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L97] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L101] COND FALSE !(((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1))) [L108] COND FALSE !((((a11==1)&&((((((a25==1)&&(a28==8))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7))))&&(input==6))&&(a19==1))&&(a17==9)))&&(a21==1))) [L115] COND FALSE !(((a17==8)&&((a21==1)&&(!(a11==1)&&(!(a19==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))))))) [L121] COND FALSE !((((((a21==1)&&((a28==10)&&((input==1)&&(a25==1))))&&!(a11==1))&&(a17==8))&&!(a19==1))) [L125] COND FALSE !((!(a11==1)&&(!(a19==1)&&(((a17==8)&&((input==6)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a28==8)&&(a25==1)))))&&(a21==1))))) [L132] COND FALSE !(((((a17==8)&&(!(a19==1)&&(((input==6)&&(a21==1))&&!(a25==1))))&&!(a11==1))&&(a28==9))) [L136] COND FALSE !((!(a11==1)&&((!(a25==1)&&(((a21==1)&&((input==1)&&(a19==1)))&&(a17==8)))&&(a28==11)))) [L141] COND FALSE !((((a11==1)&&(((a19==1)&&((a21==1)&&(((a25==1)||!(a25==1))&&(input==4))))&&(a17==9)))&&(a28==9))) [L145] COND FALSE !(((!(a11==1)&&((a28==9)&&(((!(a19==1)&&(input==5))&&!(a25==1))&&(a21==1))))&&(a17==8))) [L150] COND FALSE !(((!(a11==1)&&(((a17==8)&&(((((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))||((a28==8)&&(a25==1)))&&(input==3)))&&!(a19==1)))&&(a21==1))) [L156] COND FALSE !(((a21==1)&&(!(a19==1)&&((((input==5)&&(((a28==8)&&(a25==1))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7)))))&&!(a11==1))&&(a17==8))))) [L161] COND FALSE !((((a17==9)&&(((a28==8)&&(((input==1)&&(a19==1))&&!(a25==1)))&&(a11==1)))&&(a21==1))) [L167] COND FALSE !((((a21==1)&&((a19==1)&&((a28==7)&&((a17==8)&&(!(a25==1)&&(input==3))))))&&!(a11==1))) [L171] COND FALSE !(((a28==11)&&(((a17==8)&&((((input==6)&&(a21==1))&&(a19==1))&&!(a25==1)))&&!(a11==1)))) [L177] COND FALSE !(((!(a11==1)&&(((a17==8)&&((a21==1)&&((input==3)&&(a28==8))))&&(a19==1)))&&(a25==1))) [L181] COND FALSE !((((a21==1)&&(((a19==1)&&(((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))&&(input==4)))&&(a11==1)))&&(a17==9))) [L187] COND FALSE !((((!(a11==1)&&((a17==8)&&(((input==4)&&(a19==1))&&(a28==8))))&&(a21==1))&&(a25==1))) [L189] COND FALSE !(((a19==1)&&((((((input==4)&&(a21==1))&&(a28==9))&&!(a25==1))&&!(a11==1))&&(a17==8)))) [L191] COND FALSE !(((a17==8)&&((((((input==1)&&(a21==1))&&!(a11==1))&&(a19==1))&&!(a25==1))&&(a28==9)))) [L193] COND FALSE !((((((((input==4)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a21==1))&&(a17==8))&&(a28==10))&&(a19==1))) [L196] COND FALSE !(((!(a25==1)&&((a11==1)&&((a28==8)&&(((a17==9)&&(input==4))&&(a19==1)))))&&(a21==1))) [L200] COND FALSE !((!(a19==1)&&((a17==8)&&((a28==10)&&(((a25==1)&&(!(a11==1)&&(input==5)))&&(a21==1)))))) [L204] COND FALSE !((((((a21==1)&&((input==1)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))))&&(a17==8))&&!(a11==1))&&(a19==1))) [L214] COND FALSE !(((a21==1)&&((((a19==1)&&((a25==1)&&((a28==11)&&(input==6))))&&!(a11==1))&&(a17==8)))) [L217] COND FALSE !((!(a11==1)&&((a19==1)&&((a28==10)&&(((((a25==1)||!(a25==1))&&(input==5))&&(a17==8))&&(a21==1)))))) [L220] COND FALSE !((((((a17==9)&&((((a25==1)||!(a25==1))&&(input==6))&&(a11==1)))&&(a19==1))&&(a21==1))&&(a28==9))) [L225] COND FALSE !((((a17==8)&&(((((input==6)&&(a25==1))&&!(a19==1))&&!(a11==1))&&(a28==10)))&&(a21==1))) [L227] COND FALSE !(((!(a19==1)&&((a17==8)&&(!(a11==1)&&((input==1)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))))&&(a21==1))) [L234] COND FALSE !((((((((input==1)&&(a21==1))&&(a28==9))&&!(a19==1))&&!(a25==1))&&(a17==8))&&!(a11==1))) [L236] COND FALSE !(((a17==8)&&(((!(a11==1)&&((!(a25==1)&&(input==4))&&(a19==1)))&&(a28==7))&&(a21==1)))) [L239] COND FALSE !((!(a11==1)&&(((a17==8)&&((((!(a25==1)&&(a28==11))||((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1))))&&(input==3))&&(a21==1)))&&!(a19==1)))) [L250] COND FALSE !(((((!(a11==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==5)))&&(a21==1))&&!(a19==1))&&(a17==8))) [L255] COND FALSE !((((a17==9)&&(((((input==1)&&((a25==1)||!(a25==1)))&&(a11==1))&&(a21==1))&&(a19==1)))&&(a28==9))) [L261] COND FALSE !((!(a11==1)&&((a19==1)&&(((((a28==9)&&(input==6))&&(a21==1))&&(a17==8))&&!(a25==1))))) [L263] COND FALSE !(((a17==9)&&((a21==1)&&((a11==1)&&(((input==3)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a19==1)))))) [L278] COND FALSE !(((a28==7)&&((a17==8)&&(!(a25==1)&&((a21==1)&&((a19==1)&&((input==5)&&!(a11==1)))))))) [L282] COND FALSE !(((a28==8)&&((a21==1)&&((!(a11==1)&&(((input==1)&&(a17==8))&&(a19==1)))&&(a25==1))))) [L285] COND FALSE !((((((a17==8)&&(((input==6)&&((a25==1)||!(a25==1)))&&(a21==1)))&&(a28==10))&&!(a11==1))&&(a19==1))) [L288] COND FALSE !(((!(a11==1)&&((!(a19==1)&&(((!(a25==1)&&(a28==11))||(((a28==10)&&!(a25==1))||((a25==1)&&(a28==11))))&&(input==5)))&&(a17==8)))&&(a21==1))) [L293] COND FALSE !(((a17==8)&&(((a21==1)&&(!(a11==1)&&((a25==1)&&((a28==8)&&(input==6)))))&&(a19==1)))) [L295] COND FALSE !((((a19==1)&&((a17==8)&&(((!(a25==1)&&(input==5))&&(a21==1))&&!(a11==1))))&&(a28==11))) [L299] COND FALSE !(((a11==1)&&(((a17==9)&&((a28==9)&&((a19==1)&&(((a25==1)||!(a25==1))&&(input==5)))))&&(a21==1)))) [L311] COND FALSE !((((((((input==3)&&(a19==1))&&(a21==1))&&(a17==8))&&!(a25==1))&&(a28==11))&&!(a11==1))) [L316] COND FALSE !(((a19==1)&&((a21==1)&&((((input==5)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a11==1))&&(a17==9))))) [L330] COND FALSE !((((a19==1)&&(((!(a11==1)&&(((a25==1)||!(a25==1))&&(input==3)))&&(a28==10))&&(a21==1)))&&(a17==8))) [L333] COND FALSE !(((!(a11==1)&&(((((input==4)&&(a17==8))&&!(a25==1))&&(a21==1))&&(a28==11)))&&(a19==1))) [L339] COND FALSE !((((!(a19==1)&&(((input==4)&&(((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1)))||(!(a25==1)&&(a28==11))))&&(a21==1)))&&(a17==8))&&!(a11==1))) [L351] COND FALSE !((!(a11==1)&&(((a17==8)&&((((a25==1)&&(input==4))&&(a19==1))&&(a28==11)))&&(a21==1)))) [L356] COND FALSE !((((((a21==1)&&((((a28==8)&&!(a25==1))||((a28==9)&&(a25==1)))&&(input==6)))&&!(a11==1))&&!(a19==1))&&(a17==8))) [L363] COND FALSE !(((a19==1)&&((((a21==1)&&((!(a25==1)&&(input==3))&&(a17==9)))&&(a28==8))&&(a11==1)))) [L370] COND FALSE !(((a17==8)&&(((a21==1)&&(((input==5)&&((!(a25==1)&&(a28==8))||((a28==9)&&(a25==1))))&&(a19==1)))&&!(a11==1)))) [L377] COND FALSE !(((a19==1)&&(((((a17==8)&&((input==5)&&!(a11==1)))&&(a21==1))&&(a25==1))&&(a28==8)))) [L380] COND FALSE !((((!(a11==1)&&((((a21==1)&&(input==4))&&(a28==10))&&(a17==8)))&&!(a19==1))&&(a25==1))) [L382] COND FALSE !(((a28==8)&&(((a19==1)&&((a11==1)&&(!(a25==1)&&((a17==9)&&(input==6)))))&&(a21==1)))) [L391] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==6)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))&&(a17==8))&&!(a19==1)))) [L396] COND TRUE (((((!(a25==1)&&((a19==1)&&(input==3)))&&(a28==9))&&(a21==1))&&(a17==8))&&!(a11==1)) [L397] a19 = 0 [L398] a28 = 7 [L399] return 25; [L616] RET, EXPR calculate_output(input) [L616] output = calculate_output(input) [L608] COND TRUE 1 [L611] int input; [L612] input = __VERIFIER_nondet_int() [L613] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L616] CALL, EXPR calculate_output(input) [L32] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L37] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L40] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L44] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L49] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L52] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L56] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L61] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L67] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L71] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L76] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L84] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L93] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L97] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L101] COND FALSE !(((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1))) [L108] COND FALSE !((((a11==1)&&((((((a25==1)&&(a28==8))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7))))&&(input==6))&&(a19==1))&&(a17==9)))&&(a21==1))) [L115] COND FALSE !(((a17==8)&&((a21==1)&&(!(a11==1)&&(!(a19==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))))))) [L121] COND FALSE !((((((a21==1)&&((a28==10)&&((input==1)&&(a25==1))))&&!(a11==1))&&(a17==8))&&!(a19==1))) [L125] COND FALSE !((!(a11==1)&&(!(a19==1)&&(((a17==8)&&((input==6)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a28==8)&&(a25==1)))))&&(a21==1))))) [L132] COND FALSE !(((((a17==8)&&(!(a19==1)&&(((input==6)&&(a21==1))&&!(a25==1))))&&!(a11==1))&&(a28==9))) [L136] COND FALSE !((!(a11==1)&&((!(a25==1)&&(((a21==1)&&((input==1)&&(a19==1)))&&(a17==8)))&&(a28==11)))) [L141] COND FALSE !((((a11==1)&&(((a19==1)&&((a21==1)&&(((a25==1)||!(a25==1))&&(input==4))))&&(a17==9)))&&(a28==9))) [L145] COND FALSE !(((!(a11==1)&&((a28==9)&&(((!(a19==1)&&(input==5))&&!(a25==1))&&(a21==1))))&&(a17==8))) [L150] COND TRUE ((!(a11==1)&&(((a17==8)&&(((((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))||((a28==8)&&(a25==1)))&&(input==3)))&&!(a19==1)))&&(a21==1)) [L151] a11 = 1 [L152] a19 = 1 [L153] a28 = 10 [L154] a25 = 1 [L155] return -1; [L616] RET, EXPR calculate_output(input) [L616] output = calculate_output(input) [L608] COND TRUE 1 [L611] int input; [L612] input = __VERIFIER_nondet_int() [L613] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L616] CALL calculate_output(input) [L32] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L37] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L40] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L44] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L49] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L52] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L56] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L61] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L67] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L71] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L76] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L84] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L93] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L97] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L101] COND FALSE !(((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1))) [L108] COND FALSE !((((a11==1)&&((((((a25==1)&&(a28==8))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7))))&&(input==6))&&(a19==1))&&(a17==9)))&&(a21==1))) [L115] COND FALSE !(((a17==8)&&((a21==1)&&(!(a11==1)&&(!(a19==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))))))) [L121] COND FALSE !((((((a21==1)&&((a28==10)&&((input==1)&&(a25==1))))&&!(a11==1))&&(a17==8))&&!(a19==1))) [L125] COND FALSE !((!(a11==1)&&(!(a19==1)&&(((a17==8)&&((input==6)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a28==8)&&(a25==1)))))&&(a21==1))))) [L132] COND FALSE !(((((a17==8)&&(!(a19==1)&&(((input==6)&&(a21==1))&&!(a25==1))))&&!(a11==1))&&(a28==9))) [L136] COND FALSE !((!(a11==1)&&((!(a25==1)&&(((a21==1)&&((input==1)&&(a19==1)))&&(a17==8)))&&(a28==11)))) [L141] COND FALSE !((((a11==1)&&(((a19==1)&&((a21==1)&&(((a25==1)||!(a25==1))&&(input==4))))&&(a17==9)))&&(a28==9))) [L145] COND FALSE !(((!(a11==1)&&((a28==9)&&(((!(a19==1)&&(input==5))&&!(a25==1))&&(a21==1))))&&(a17==8))) [L150] COND FALSE !(((!(a11==1)&&(((a17==8)&&(((((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))||((a28==8)&&(a25==1)))&&(input==3)))&&!(a19==1)))&&(a21==1))) [L156] COND FALSE !(((a21==1)&&(!(a19==1)&&((((input==5)&&(((a28==8)&&(a25==1))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7)))))&&!(a11==1))&&(a17==8))))) [L161] COND FALSE !((((a17==9)&&(((a28==8)&&(((input==1)&&(a19==1))&&!(a25==1)))&&(a11==1)))&&(a21==1))) [L167] COND FALSE !((((a21==1)&&((a19==1)&&((a28==7)&&((a17==8)&&(!(a25==1)&&(input==3))))))&&!(a11==1))) [L171] COND FALSE !(((a28==11)&&(((a17==8)&&((((input==6)&&(a21==1))&&(a19==1))&&!(a25==1)))&&!(a11==1)))) [L177] COND FALSE !(((!(a11==1)&&(((a17==8)&&((a21==1)&&((input==3)&&(a28==8))))&&(a19==1)))&&(a25==1))) [L181] COND FALSE !((((a21==1)&&(((a19==1)&&(((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))&&(input==4)))&&(a11==1)))&&(a17==9))) [L187] COND FALSE !((((!(a11==1)&&((a17==8)&&(((input==4)&&(a19==1))&&(a28==8))))&&(a21==1))&&(a25==1))) [L189] COND FALSE !(((a19==1)&&((((((input==4)&&(a21==1))&&(a28==9))&&!(a25==1))&&!(a11==1))&&(a17==8)))) [L191] COND FALSE !(((a17==8)&&((((((input==1)&&(a21==1))&&!(a11==1))&&(a19==1))&&!(a25==1))&&(a28==9)))) [L193] COND FALSE !((((((((input==4)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a21==1))&&(a17==8))&&(a28==10))&&(a19==1))) [L196] COND FALSE !(((!(a25==1)&&((a11==1)&&((a28==8)&&(((a17==9)&&(input==4))&&(a19==1)))))&&(a21==1))) [L200] COND FALSE !((!(a19==1)&&((a17==8)&&((a28==10)&&(((a25==1)&&(!(a11==1)&&(input==5)))&&(a21==1)))))) [L204] COND FALSE !((((((a21==1)&&((input==1)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))))&&(a17==8))&&!(a11==1))&&(a19==1))) [L214] COND FALSE !(((a21==1)&&((((a19==1)&&((a25==1)&&((a28==11)&&(input==6))))&&!(a11==1))&&(a17==8)))) [L217] COND FALSE !((!(a11==1)&&((a19==1)&&((a28==10)&&(((((a25==1)||!(a25==1))&&(input==5))&&(a17==8))&&(a21==1)))))) [L220] COND FALSE !((((((a17==9)&&((((a25==1)||!(a25==1))&&(input==6))&&(a11==1)))&&(a19==1))&&(a21==1))&&(a28==9))) [L225] COND FALSE !((((a17==8)&&(((((input==6)&&(a25==1))&&!(a19==1))&&!(a11==1))&&(a28==10)))&&(a21==1))) [L227] COND FALSE !(((!(a19==1)&&((a17==8)&&(!(a11==1)&&((input==1)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))))&&(a21==1))) [L234] COND FALSE !((((((((input==1)&&(a21==1))&&(a28==9))&&!(a19==1))&&!(a25==1))&&(a17==8))&&!(a11==1))) [L236] COND FALSE !(((a17==8)&&(((!(a11==1)&&((!(a25==1)&&(input==4))&&(a19==1)))&&(a28==7))&&(a21==1)))) [L239] COND FALSE !((!(a11==1)&&(((a17==8)&&((((!(a25==1)&&(a28==11))||((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1))))&&(input==3))&&(a21==1)))&&!(a19==1)))) [L250] COND FALSE !(((((!(a11==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==5)))&&(a21==1))&&!(a19==1))&&(a17==8))) [L255] COND FALSE !((((a17==9)&&(((((input==1)&&((a25==1)||!(a25==1)))&&(a11==1))&&(a21==1))&&(a19==1)))&&(a28==9))) [L261] COND FALSE !((!(a11==1)&&((a19==1)&&(((((a28==9)&&(input==6))&&(a21==1))&&(a17==8))&&!(a25==1))))) [L263] COND FALSE !(((a17==9)&&((a21==1)&&((a11==1)&&(((input==3)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a19==1)))))) [L278] COND FALSE !(((a28==7)&&((a17==8)&&(!(a25==1)&&((a21==1)&&((a19==1)&&((input==5)&&!(a11==1)))))))) [L282] COND FALSE !(((a28==8)&&((a21==1)&&((!(a11==1)&&(((input==1)&&(a17==8))&&(a19==1)))&&(a25==1))))) [L285] COND FALSE !((((((a17==8)&&(((input==6)&&((a25==1)||!(a25==1)))&&(a21==1)))&&(a28==10))&&!(a11==1))&&(a19==1))) [L288] COND FALSE !(((!(a11==1)&&((!(a19==1)&&(((!(a25==1)&&(a28==11))||(((a28==10)&&!(a25==1))||((a25==1)&&(a28==11))))&&(input==5)))&&(a17==8)))&&(a21==1))) [L293] COND FALSE !(((a17==8)&&(((a21==1)&&(!(a11==1)&&((a25==1)&&((a28==8)&&(input==6)))))&&(a19==1)))) [L295] COND FALSE !((((a19==1)&&((a17==8)&&(((!(a25==1)&&(input==5))&&(a21==1))&&!(a11==1))))&&(a28==11))) [L299] COND FALSE !(((a11==1)&&(((a17==9)&&((a28==9)&&((a19==1)&&(((a25==1)||!(a25==1))&&(input==5)))))&&(a21==1)))) [L311] COND FALSE !((((((((input==3)&&(a19==1))&&(a21==1))&&(a17==8))&&!(a25==1))&&(a28==11))&&!(a11==1))) [L316] COND FALSE !(((a19==1)&&((a21==1)&&((((input==5)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a11==1))&&(a17==9))))) [L330] COND FALSE !((((a19==1)&&(((!(a11==1)&&(((a25==1)||!(a25==1))&&(input==3)))&&(a28==10))&&(a21==1)))&&(a17==8))) [L333] COND FALSE !(((!(a11==1)&&(((((input==4)&&(a17==8))&&!(a25==1))&&(a21==1))&&(a28==11)))&&(a19==1))) [L339] COND FALSE !((((!(a19==1)&&(((input==4)&&(((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1)))||(!(a25==1)&&(a28==11))))&&(a21==1)))&&(a17==8))&&!(a11==1))) [L351] COND FALSE !((!(a11==1)&&(((a17==8)&&((((a25==1)&&(input==4))&&(a19==1))&&(a28==11)))&&(a21==1)))) [L356] COND FALSE !((((((a21==1)&&((((a28==8)&&!(a25==1))||((a28==9)&&(a25==1)))&&(input==6)))&&!(a11==1))&&!(a19==1))&&(a17==8))) [L363] COND FALSE !(((a19==1)&&((((a21==1)&&((!(a25==1)&&(input==3))&&(a17==9)))&&(a28==8))&&(a11==1)))) [L370] COND FALSE !(((a17==8)&&(((a21==1)&&(((input==5)&&((!(a25==1)&&(a28==8))||((a28==9)&&(a25==1))))&&(a19==1)))&&!(a11==1)))) [L377] COND FALSE !(((a19==1)&&(((((a17==8)&&((input==5)&&!(a11==1)))&&(a21==1))&&(a25==1))&&(a28==8)))) [L380] COND FALSE !((((!(a11==1)&&((((a21==1)&&(input==4))&&(a28==10))&&(a17==8)))&&!(a19==1))&&(a25==1))) [L382] COND FALSE !(((a28==8)&&(((a19==1)&&((a11==1)&&(!(a25==1)&&((a17==9)&&(input==6)))))&&(a21==1)))) [L391] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==6)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))&&(a17==8))&&!(a19==1)))) [L396] COND FALSE !((((((!(a25==1)&&((a19==1)&&(input==3)))&&(a28==9))&&(a21==1))&&(a17==8))&&!(a11==1))) [L400] COND FALSE !((((a17==8)&&((((input==4)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9))))&&(a21==1))&&!(a19==1)))&&!(a11==1))) [L404] COND FALSE !((((!(a11==1)&&((((a19==1)&&(input==5))&&(a17==8))&&(a21==1)))&&(a28==9))&&!(a25==1))) [L406] COND FALSE !((((a11==1)&&((a19==1)&&((a21==1)&&(((a17==9)&&(input==5))&&!(a25==1)))))&&(a28==8))) [L409] COND FALSE !((!(a11==1)&&((a21==1)&&(((a19==1)&&((a17==8)&&((a25==1)&&(input==5))))&&(a28==11))))) [L411] COND FALSE !(((a19==1)&&((a17==8)&&(((((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))&&!(a11==1))&&(a21==1))))) [L416] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==7))&&!(a19==1))&&(a21==1))&&(a17==8))) [L419] COND TRUE ((((((a25==1)&&(a11==1))&&(a28==10))&&(a19==1))&&(a21==1))&&(a17==8)) [L420] CALL reach_error() [L4] __assert_fail("0", "Problem02_label45.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 65.6s, OverallIterations: 15, TraceHistogramMax: 6, AutomataDifference: 29.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 491 SDtfs, 5943 SDslu, 666 SDs, 0 SdLazy, 12403 SolverSat, 1488 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 271 GetRequests, 144 SyntacticMatches, 2 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1733occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 14 MinimizatonAttempts, 1094 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 33.4s InterpolantComputationTime, 2502 NumberOfCodeBlocks, 2502 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2240 ConstructedInterpolants, 0 QuantifiedInterpolants, 1338768 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 1 PerfectInterpolantSequences, 1544/1670 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...