/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label08.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 22:34:46,659 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 22:34:46,664 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 22:34:46,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 22:34:46,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 22:34:46,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 22:34:46,731 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 22:34:46,736 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 22:34:46,740 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 22:34:46,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 22:34:46,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 22:34:46,750 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 22:34:46,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 22:34:46,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 22:34:46,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 22:34:46,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 22:34:46,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 22:34:46,764 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 22:34:46,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 22:34:46,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 22:34:46,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 22:34:46,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 22:34:46,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 22:34:46,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 22:34:46,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 22:34:46,795 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 22:34:46,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 22:34:46,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 22:34:46,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 22:34:46,799 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 22:34:46,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 22:34:46,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 22:34:46,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 22:34:46,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 22:34:46,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 22:34:46,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 22:34:46,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 22:34:46,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 22:34:46,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 22:34:46,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 22:34:46,807 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 22:34:46,815 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 22:34:46,864 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 22:34:46,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 22:34:46,869 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 22:34:46,869 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 22:34:46,869 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 22:34:46,870 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 22:34:46,870 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 22:34:46,870 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 22:34:46,870 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 22:34:46,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 22:34:46,871 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 22:34:46,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 22:34:46,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 22:34:46,872 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 22:34:46,872 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 22:34:46,872 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 22:34:46,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 22:34:46,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 22:34:46,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 22:34:46,873 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 22:34:46,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 22:34:46,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 22:34:46,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 22:34:46,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 22:34:46,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 22:34:46,874 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 22:34:46,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 22:34:46,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 22:34:46,875 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 22:34:46,875 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 22:34:47,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 22:34:47,365 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 22:34:47,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 22:34:47,369 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 22:34:47,370 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 22:34:47,371 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label08.c [2020-10-26 22:34:47,461 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/80305ee6a/6508dae613184c49ba69daef4fb7cce3/FLAGbf9399e04 [2020-10-26 22:34:48,289 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 22:34:48,290 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem11_label08.c [2020-10-26 22:34:48,307 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/80305ee6a/6508dae613184c49ba69daef4fb7cce3/FLAGbf9399e04 [2020-10-26 22:34:48,444 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/80305ee6a/6508dae613184c49ba69daef4fb7cce3 [2020-10-26 22:34:48,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 22:34:48,455 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 22:34:48,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 22:34:48,458 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 22:34:48,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 22:34:48,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:34:48" (1/1) ... [2020-10-26 22:34:48,466 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22b014f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:34:48, skipping insertion in model container [2020-10-26 22:34:48,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:34:48" (1/1) ... [2020-10-26 22:34:48,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 22:34:48,536 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 22:34:49,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:34:49,250 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 22:34:49,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:34:49,477 INFO L208 MainTranslator]: Completed translation [2020-10-26 22:34:49,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:34:49 WrapperNode [2020-10-26 22:34:49,478 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 22:34:49,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 22:34:49,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 22:34:49,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 22:34:49,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:34:49" (1/1) ... [2020-10-26 22:34:49,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:34:49" (1/1) ... [2020-10-26 22:34:49,524 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:34:49" (1/1) ... [2020-10-26 22:34:49,524 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:34:49" (1/1) ... [2020-10-26 22:34:49,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:34:49" (1/1) ... [2020-10-26 22:34:49,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:34:49" (1/1) ... [2020-10-26 22:34:49,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:34:49" (1/1) ... [2020-10-26 22:34:49,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 22:34:49,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 22:34:49,669 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 22:34:49,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 22:34:49,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:34:49" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 22:34:49,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 22:34:49,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 22:34:49,769 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 22:34:49,770 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 22:34:49,770 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 22:34:49,771 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 22:34:49,771 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 22:34:49,771 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 22:34:49,771 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 22:34:49,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 22:34:49,772 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 22:34:49,773 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 22:34:49,773 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 22:34:49,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 22:34:49,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 22:34:49,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 22:34:49,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 22:34:49,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 22:34:49,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 22:34:52,025 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 22:34:52,026 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 22:34:52,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:34:52 BoogieIcfgContainer [2020-10-26 22:34:52,029 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 22:34:52,031 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 22:34:52,031 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 22:34:52,035 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 22:34:52,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:34:48" (1/3) ... [2020-10-26 22:34:52,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@618d7b72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:34:52, skipping insertion in model container [2020-10-26 22:34:52,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:34:49" (2/3) ... [2020-10-26 22:34:52,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@618d7b72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:34:52, skipping insertion in model container [2020-10-26 22:34:52,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:34:52" (3/3) ... [2020-10-26 22:34:52,039 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label08.c [2020-10-26 22:34:52,052 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 22:34:52,058 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 22:34:52,074 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 22:34:52,107 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 22:34:52,108 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 22:34:52,108 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 22:34:52,108 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 22:34:52,108 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 22:34:52,109 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 22:34:52,109 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 22:34:52,109 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 22:34:52,135 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states. [2020-10-26 22:34:52,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-26 22:34:52,142 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:34:52,143 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] [2020-10-26 22:34:52,143 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:34:52,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:34:52,150 INFO L82 PathProgramCache]: Analyzing trace with hash -755432456, now seen corresponding path program 1 times [2020-10-26 22:34:52,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:34:52,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1765100669] [2020-10-26 22:34:52,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:34:52,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:52,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:52,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:52,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-26 22:34:52,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:52,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 556 [2020-10-26 22:34:52,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:52,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:34:52,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:34:52,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-26 22:34:52,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-26 22:34:53,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:34:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:53,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:53,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:53,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:34:53,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:53,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-26 22:34:53,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:53,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:34:53,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:53,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:34:53,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:53,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:34:53,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1765100669] [2020-10-26 22:34:53,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:34:53,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 22:34:53,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847161167] [2020-10-26 22:34:53,108 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 22:34:53,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:34:53,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 22:34:53,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 22:34:53,125 INFO L87 Difference]: Start difference. First operand 296 states. Second operand 4 states. [2020-10-26 22:34:56,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:34:56,610 INFO L93 Difference]: Finished difference Result 793 states and 1388 transitions. [2020-10-26 22:34:56,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:34:56,612 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-10-26 22:34:56,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:34:56,629 INFO L225 Difference]: With dead ends: 793 [2020-10-26 22:34:56,630 INFO L226 Difference]: Without dead ends: 432 [2020-10-26 22:34:56,641 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:34:56,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2020-10-26 22:34:56,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 426. [2020-10-26 22:34:56,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2020-10-26 22:34:56,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 613 transitions. [2020-10-26 22:34:56,770 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 613 transitions. Word has length 22 [2020-10-26 22:34:56,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:34:56,771 INFO L481 AbstractCegarLoop]: Abstraction has 426 states and 613 transitions. [2020-10-26 22:34:56,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 22:34:56,771 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 613 transitions. [2020-10-26 22:34:56,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-26 22:34:56,777 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:34:56,778 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:34:56,778 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 22:34:56,778 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:34:56,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:34:56,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1808088012, now seen corresponding path program 1 times [2020-10-26 22:34:56,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:34:56,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1081557611] [2020-10-26 22:34:56,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:34:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:56,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:57,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:58,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:58,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-26 22:34:58,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:34:58,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1510 [2020-10-26 22:34:58,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:58,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:34:58,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:34:58,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-26 22:34:58,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:34:58,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:34:58,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:58,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:58,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:58,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:34:58,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:58,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 22:34:58,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:58,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:34:58,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:58,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:34:58,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:34:58,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:34:58,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:58,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:58,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:58,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-26 22:34:58,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:58,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-10-26 22:34:58,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:58,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:58,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:34:58,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-26 22:34:58,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:58,866 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:34:58,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1081557611] [2020-10-26 22:34:58,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:34:58,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 22:34:58,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150935648] [2020-10-26 22:34:58,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:34:58,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:34:58,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:34:58,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:34:58,878 INFO L87 Difference]: Start difference. First operand 426 states and 613 transitions. Second operand 7 states. [2020-10-26 22:35:02,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:35:02,502 INFO L93 Difference]: Finished difference Result 1277 states and 1862 transitions. [2020-10-26 22:35:02,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:35:02,503 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 94 [2020-10-26 22:35:02,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:35:02,511 INFO L225 Difference]: With dead ends: 1277 [2020-10-26 22:35:02,511 INFO L226 Difference]: Without dead ends: 857 [2020-10-26 22:35:02,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:35:02,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2020-10-26 22:35:02,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 821. [2020-10-26 22:35:02,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 821 states. [2020-10-26 22:35:02,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1098 transitions. [2020-10-26 22:35:02,566 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1098 transitions. Word has length 94 [2020-10-26 22:35:02,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:35:02,567 INFO L481 AbstractCegarLoop]: Abstraction has 821 states and 1098 transitions. [2020-10-26 22:35:02,567 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:35:02,567 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1098 transitions. [2020-10-26 22:35:02,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-26 22:35:02,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:35:02,571 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:35:02,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 22:35:02,572 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:35:02,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:35:02,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1599076900, now seen corresponding path program 1 times [2020-10-26 22:35:02,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:35:02,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1546556940] [2020-10-26 22:35:02,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:35:02,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:02,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:02,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:03,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:03,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-26 22:35:03,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:35:03,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 709 [2020-10-26 22:35:03,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:03,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 22:35:03,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:35:03,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-26 22:35:03,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:03,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:35:03,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:03,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:03,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:03,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:35:03,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:03,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 22:35:03,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:03,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:35:03,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:03,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:35:03,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:03,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:35:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:03,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:03,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:03,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:03,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-26 22:35:03,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:35:03,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-10-26 22:35:03,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:03,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:35:03,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:35:03,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-26 22:35:03,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:03,951 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 22:35:03,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1546556940] [2020-10-26 22:35:03,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:35:03,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:35:03,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066344160] [2020-10-26 22:35:03,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 22:35:03,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:35:03,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 22:35:03,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:35:03,956 INFO L87 Difference]: Start difference. First operand 821 states and 1098 transitions. Second operand 6 states. [2020-10-26 22:35:07,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:35:07,357 INFO L93 Difference]: Finished difference Result 2438 states and 3296 transitions. [2020-10-26 22:35:07,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 22:35:07,358 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2020-10-26 22:35:07,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:35:07,369 INFO L225 Difference]: With dead ends: 2438 [2020-10-26 22:35:07,369 INFO L226 Difference]: Without dead ends: 1623 [2020-10-26 22:35:07,373 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:35:07,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1623 states. [2020-10-26 22:35:07,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1623 to 1608. [2020-10-26 22:35:07,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1608 states. [2020-10-26 22:35:07,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2012 transitions. [2020-10-26 22:35:07,445 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2012 transitions. Word has length 102 [2020-10-26 22:35:07,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:35:07,446 INFO L481 AbstractCegarLoop]: Abstraction has 1608 states and 2012 transitions. [2020-10-26 22:35:07,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 22:35:07,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2012 transitions. [2020-10-26 22:35:07,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-26 22:35:07,449 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:35:07,450 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:35:07,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 22:35:07,450 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:35:07,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:35:07,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1715109291, now seen corresponding path program 1 times [2020-10-26 22:35:07,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:35:07,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1694056998] [2020-10-26 22:35:07,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:35:07,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:07,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:07,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:07,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-26 22:35:07,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:07,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 337 [2020-10-26 22:35:07,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:07,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:35:07,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-26 22:35:07,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-26 22:35:07,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 22:35:07,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:35:07,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:07,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:07,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:07,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:35:07,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:07,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 22:35:07,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:07,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:07,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:07,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:07,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:08,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:35:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:08,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:08,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:08,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-26 22:35:08,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:08,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-26 22:35:08,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:08,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:35:08,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:08,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-26 22:35:08,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:08,322 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:35:08,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1694056998] [2020-10-26 22:35:08,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:35:08,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:35:08,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566839365] [2020-10-26 22:35:08,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:35:08,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:35:08,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:35:08,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:35:08,338 INFO L87 Difference]: Start difference. First operand 1608 states and 2012 transitions. Second operand 5 states. [2020-10-26 22:35:11,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:35:11,137 INFO L93 Difference]: Finished difference Result 3427 states and 4482 transitions. [2020-10-26 22:35:11,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:35:11,137 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 153 [2020-10-26 22:35:11,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:35:11,151 INFO L225 Difference]: With dead ends: 3427 [2020-10-26 22:35:11,151 INFO L226 Difference]: Without dead ends: 2203 [2020-10-26 22:35:11,155 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:35:11,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2203 states. [2020-10-26 22:35:11,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2203 to 2189. [2020-10-26 22:35:11,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2189 states. [2020-10-26 22:35:11,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2189 states to 2189 states and 2831 transitions. [2020-10-26 22:35:11,253 INFO L78 Accepts]: Start accepts. Automaton has 2189 states and 2831 transitions. Word has length 153 [2020-10-26 22:35:11,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:35:11,257 INFO L481 AbstractCegarLoop]: Abstraction has 2189 states and 2831 transitions. [2020-10-26 22:35:11,257 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:35:11,257 INFO L276 IsEmpty]: Start isEmpty. Operand 2189 states and 2831 transitions. [2020-10-26 22:35:11,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-26 22:35:11,269 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:35:11,269 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:35:11,270 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 22:35:11,270 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:35:11,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:35:11,271 INFO L82 PathProgramCache]: Analyzing trace with hash 39937402, now seen corresponding path program 1 times [2020-10-26 22:35:11,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:35:11,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2110102604] [2020-10-26 22:35:11,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:35:11,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:11,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:11,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:11,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-26 22:35:11,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:11,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 485 [2020-10-26 22:35:11,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:11,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:35:11,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-26 22:35:11,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:35:11,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:12,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:35:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:12,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:12,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:12,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:35:12,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:12,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 22:35:12,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:12,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:12,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:12,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:12,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:12,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:35:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:12,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:12,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:12,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-26 22:35:12,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:12,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-26 22:35:12,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:12,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:35:12,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:12,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-26 22:35:12,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:12,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-26 22:35:12,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:12,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:12,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:12,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-26 22:35:12,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:12,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-26 22:35:12,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:12,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:35:12,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:35:12,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-26 22:35:12,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:12,617 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 105 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:35:12,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2110102604] [2020-10-26 22:35:12,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:35:12,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:35:12,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111080262] [2020-10-26 22:35:12,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:35:12,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:35:12,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:35:12,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:35:12,620 INFO L87 Difference]: Start difference. First operand 2189 states and 2831 transitions. Second operand 8 states. [2020-10-26 22:35:17,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:35:17,435 INFO L93 Difference]: Finished difference Result 5218 states and 7056 transitions. [2020-10-26 22:35:17,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-26 22:35:17,436 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 218 [2020-10-26 22:35:17,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:35:17,462 INFO L225 Difference]: With dead ends: 5218 [2020-10-26 22:35:17,462 INFO L226 Difference]: Without dead ends: 3413 [2020-10-26 22:35:17,468 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-26 22:35:17,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3413 states. [2020-10-26 22:35:17,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3413 to 3372. [2020-10-26 22:35:17,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3372 states. [2020-10-26 22:35:17,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3372 states to 3372 states and 4387 transitions. [2020-10-26 22:35:17,603 INFO L78 Accepts]: Start accepts. Automaton has 3372 states and 4387 transitions. Word has length 218 [2020-10-26 22:35:17,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:35:17,604 INFO L481 AbstractCegarLoop]: Abstraction has 3372 states and 4387 transitions. [2020-10-26 22:35:17,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:35:17,604 INFO L276 IsEmpty]: Start isEmpty. Operand 3372 states and 4387 transitions. [2020-10-26 22:35:17,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-10-26 22:35:17,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:35:17,609 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:35:17,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 22:35:17,609 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:35:17,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:35:17,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1853742635, now seen corresponding path program 1 times [2020-10-26 22:35:17,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:35:17,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1773917775] [2020-10-26 22:35:17,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:35:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:17,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:17,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:19,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:19,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-10-26 22:35:19,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:35:19,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2024 [2020-10-26 22:35:19,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:19,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:35:19,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-26 22:35:19,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:35:19,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:19,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:35:19,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:19,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:19,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:19,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:35:19,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:19,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:35:19,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:19,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:19,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:19,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:19,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:19,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:35:19,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:19,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:19,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:19,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-26 22:35:19,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:19,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-26 22:35:20,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:20,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:35:20,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:20,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-26 22:35:20,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:20,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-26 22:35:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:20,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:20,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:20,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:35:20,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:20,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-26 22:35:20,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:20,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:35:20,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:35:20,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-26 22:35:20,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:20,427 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 95 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:35:20,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1773917775] [2020-10-26 22:35:20,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:35:20,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:35:20,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405018298] [2020-10-26 22:35:20,429 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:35:20,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:35:20,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:35:20,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:35:20,430 INFO L87 Difference]: Start difference. First operand 3372 states and 4387 transitions. Second operand 7 states. [2020-10-26 22:35:23,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:35:23,879 INFO L93 Difference]: Finished difference Result 6420 states and 8460 transitions. [2020-10-26 22:35:23,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:35:23,880 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 223 [2020-10-26 22:35:23,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:35:23,900 INFO L225 Difference]: With dead ends: 6420 [2020-10-26 22:35:23,900 INFO L226 Difference]: Without dead ends: 3432 [2020-10-26 22:35:23,909 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:35:23,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3432 states. [2020-10-26 22:35:23,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3432 to 3408. [2020-10-26 22:35:24,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3408 states. [2020-10-26 22:35:24,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3408 states to 3408 states and 4425 transitions. [2020-10-26 22:35:24,013 INFO L78 Accepts]: Start accepts. Automaton has 3408 states and 4425 transitions. Word has length 223 [2020-10-26 22:35:24,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:35:24,014 INFO L481 AbstractCegarLoop]: Abstraction has 3408 states and 4425 transitions. [2020-10-26 22:35:24,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:35:24,014 INFO L276 IsEmpty]: Start isEmpty. Operand 3408 states and 4425 transitions. [2020-10-26 22:35:24,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-10-26 22:35:24,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:35:24,019 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:35:24,019 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 22:35:24,019 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:35:24,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:35:24,020 INFO L82 PathProgramCache]: Analyzing trace with hash -920310567, now seen corresponding path program 1 times [2020-10-26 22:35:24,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:35:24,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1136313991] [2020-10-26 22:35:24,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:35:24,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:24,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:24,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:24,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:25,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:27,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:27,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 247 [2020-10-26 22:35:27,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:35:27,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3460 [2020-10-26 22:35:27,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:27,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:35:27,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:35:27,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-26 22:35:27,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:27,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:35:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:27,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:27,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:27,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:35:27,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:27,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 22:35:27,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:27,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:35:27,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:27,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:35:27,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:27,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:35:27,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:27,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:27,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:28,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:28,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-26 22:35:28,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:35:28,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 345 [2020-10-26 22:35:28,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:28,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:35:28,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:35:28,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-26 22:35:28,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:28,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-26 22:35:28,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:28,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:28,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:28,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-26 22:35:28,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:28,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-26 22:35:28,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:28,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:28,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-26 22:35:28,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:28,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:28,297 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 28 proven. 75 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 22:35:28,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1136313991] [2020-10-26 22:35:28,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:35:28,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:35:28,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487407793] [2020-10-26 22:35:28,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:35:28,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:35:28,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:35:28,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:35:28,300 INFO L87 Difference]: Start difference. First operand 3408 states and 4425 transitions. Second operand 7 states. [2020-10-26 22:35:31,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:35:31,558 INFO L93 Difference]: Finished difference Result 8271 states and 11425 transitions. [2020-10-26 22:35:31,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:35:31,560 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 233 [2020-10-26 22:35:31,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:35:31,588 INFO L225 Difference]: With dead ends: 8271 [2020-10-26 22:35:31,589 INFO L226 Difference]: Without dead ends: 5247 [2020-10-26 22:35:31,599 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:35:31,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5247 states. [2020-10-26 22:35:31,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5247 to 5003. [2020-10-26 22:35:31,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5003 states. [2020-10-26 22:35:31,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5003 states to 5003 states and 6382 transitions. [2020-10-26 22:35:31,778 INFO L78 Accepts]: Start accepts. Automaton has 5003 states and 6382 transitions. Word has length 233 [2020-10-26 22:35:31,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:35:31,779 INFO L481 AbstractCegarLoop]: Abstraction has 5003 states and 6382 transitions. [2020-10-26 22:35:31,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:35:31,779 INFO L276 IsEmpty]: Start isEmpty. Operand 5003 states and 6382 transitions. [2020-10-26 22:35:31,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-10-26 22:35:31,784 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:35:31,785 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:35:31,785 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 22:35:31,785 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:35:31,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:35:31,786 INFO L82 PathProgramCache]: Analyzing trace with hash -988450842, now seen corresponding path program 1 times [2020-10-26 22:35:31,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:35:31,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [426573755] [2020-10-26 22:35:31,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:35:31,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:31,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:32,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:33,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:33,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-26 22:35:33,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:35:33,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1571 [2020-10-26 22:35:33,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:33,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:35:33,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-26 22:35:33,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-26 22:35:33,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:33,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:35:33,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:33,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:33,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:33,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:35:33,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:33,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:35:33,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:33,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:33,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:33,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:33,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 22:35:33,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:35:33,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:33,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:33,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:33,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-26 22:35:33,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:33,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-26 22:35:33,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:33,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:35:33,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:33,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-26 22:35:33,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:33,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-26 22:35:33,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:33,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:34,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:34,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-26 22:35:34,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:34,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-26 22:35:34,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:34,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:35:34,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:35:34,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-26 22:35:34,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:34,153 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 126 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:35:34,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [426573755] [2020-10-26 22:35:34,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:35:34,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:35:34,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025377601] [2020-10-26 22:35:34,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:35:34,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:35:34,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:35:34,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:35:34,156 INFO L87 Difference]: Start difference. First operand 5003 states and 6382 transitions. Second operand 7 states. [2020-10-26 22:35:37,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:35:37,966 INFO L93 Difference]: Finished difference Result 11821 states and 15552 transitions. [2020-10-26 22:35:37,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:35:37,967 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 239 [2020-10-26 22:35:37,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:35:38,003 INFO L225 Difference]: With dead ends: 11821 [2020-10-26 22:35:38,003 INFO L226 Difference]: Without dead ends: 7202 [2020-10-26 22:35:38,017 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:35:38,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7202 states. [2020-10-26 22:35:38,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7202 to 7171. [2020-10-26 22:35:38,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7171 states. [2020-10-26 22:35:38,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7171 states to 7171 states and 9290 transitions. [2020-10-26 22:35:38,232 INFO L78 Accepts]: Start accepts. Automaton has 7171 states and 9290 transitions. Word has length 239 [2020-10-26 22:35:38,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:35:38,233 INFO L481 AbstractCegarLoop]: Abstraction has 7171 states and 9290 transitions. [2020-10-26 22:35:38,233 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:35:38,233 INFO L276 IsEmpty]: Start isEmpty. Operand 7171 states and 9290 transitions. [2020-10-26 22:35:38,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-10-26 22:35:38,239 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:35:38,240 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:35:38,240 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 22:35:38,240 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:35:38,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:35:38,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1198232127, now seen corresponding path program 1 times [2020-10-26 22:35:38,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:35:38,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [255128453] [2020-10-26 22:35:38,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:35:38,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:38,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:38,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:40,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:40,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-10-26 22:35:40,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:35:40,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1959 [2020-10-26 22:35:40,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:40,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:35:40,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-26 22:35:40,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-26 22:35:40,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:40,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:35:40,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:40,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:40,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:40,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:35:40,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:40,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:35:40,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:40,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:40,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:40,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:40,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:40,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:35:40,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:40,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:40,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:40,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-26 22:35:40,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:40,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-26 22:35:40,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:40,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:35:40,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:40,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-26 22:35:40,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:35:40,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-26 22:35:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:40,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:40,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:40,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-26 22:35:40,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:40,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-10-26 22:35:40,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:40,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:35:40,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:35:40,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-26 22:35:40,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:41,071 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 117 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:35:41,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [255128453] [2020-10-26 22:35:41,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:35:41,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:35:41,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336047543] [2020-10-26 22:35:41,073 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:35:41,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:35:41,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:35:41,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:35:41,080 INFO L87 Difference]: Start difference. First operand 7171 states and 9290 transitions. Second operand 7 states. [2020-10-26 22:35:45,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:35:45,411 INFO L93 Difference]: Finished difference Result 16009 states and 21743 transitions. [2020-10-26 22:35:45,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:35:45,415 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 245 [2020-10-26 22:35:45,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:35:45,463 INFO L225 Difference]: With dead ends: 16009 [2020-10-26 22:35:45,463 INFO L226 Difference]: Without dead ends: 9222 [2020-10-26 22:35:45,483 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:35:45,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9222 states. [2020-10-26 22:35:45,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9222 to 9122. [2020-10-26 22:35:45,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9122 states. [2020-10-26 22:35:45,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9122 states to 9122 states and 11882 transitions. [2020-10-26 22:35:45,821 INFO L78 Accepts]: Start accepts. Automaton has 9122 states and 11882 transitions. Word has length 245 [2020-10-26 22:35:45,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:35:45,821 INFO L481 AbstractCegarLoop]: Abstraction has 9122 states and 11882 transitions. [2020-10-26 22:35:45,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:35:45,822 INFO L276 IsEmpty]: Start isEmpty. Operand 9122 states and 11882 transitions. [2020-10-26 22:35:45,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-10-26 22:35:45,828 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:35:45,828 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2020-10-26 22:35:45,828 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 22:35:45,829 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:35:45,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:35:45,830 INFO L82 PathProgramCache]: Analyzing trace with hash 634211895, now seen corresponding path program 1 times [2020-10-26 22:35:45,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:35:45,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1481177470] [2020-10-26 22:35:45,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:35:45,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:45,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:46,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:47,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:47,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 262 [2020-10-26 22:35:47,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:35:47,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1534 [2020-10-26 22:35:47,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:47,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-26 22:35:47,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:35:47,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-26 22:35:47,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:47,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:35:47,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:47,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:47,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:47,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:35:47,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:47,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 22:35:47,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:47,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:35:47,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:47,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:35:47,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:35:47,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:35:47,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:47,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:47,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:47,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-26 22:35:47,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:47,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-10-26 22:35:47,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:47,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:35:47,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:35:47,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-26 22:35:47,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:47,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-26 22:35:47,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:48,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:48,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:48,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-26 22:35:48,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:48,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-10-26 22:35:48,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:48,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-26 22:35:48,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:35:48,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-26 22:35:48,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:48,495 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 134 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 22:35:48,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1481177470] [2020-10-26 22:35:48,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:35:48,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:35:48,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366269947] [2020-10-26 22:35:48,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-26 22:35:48,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:35:48,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-26 22:35:48,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-26 22:35:48,498 INFO L87 Difference]: Start difference. First operand 9122 states and 11882 transitions. Second operand 9 states. [2020-10-26 22:35:50,730 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2020-10-26 22:35:53,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:35:53,725 INFO L93 Difference]: Finished difference Result 18341 states and 23921 transitions. [2020-10-26 22:35:53,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 22:35:53,726 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 248 [2020-10-26 22:35:53,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:35:53,763 INFO L225 Difference]: With dead ends: 18341 [2020-10-26 22:35:53,764 INFO L226 Difference]: Without dead ends: 11361 [2020-10-26 22:35:53,783 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-10-26 22:35:53,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11361 states. [2020-10-26 22:35:54,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11361 to 11333. [2020-10-26 22:35:54,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11333 states. [2020-10-26 22:35:54,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11333 states to 11333 states and 14593 transitions. [2020-10-26 22:35:54,065 INFO L78 Accepts]: Start accepts. Automaton has 11333 states and 14593 transitions. Word has length 248 [2020-10-26 22:35:54,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:35:54,065 INFO L481 AbstractCegarLoop]: Abstraction has 11333 states and 14593 transitions. [2020-10-26 22:35:54,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-26 22:35:54,066 INFO L276 IsEmpty]: Start isEmpty. Operand 11333 states and 14593 transitions. [2020-10-26 22:35:54,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-10-26 22:35:54,073 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:35:54,073 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2020-10-26 22:35:54,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 22:35:54,073 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:35:54,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:35:54,074 INFO L82 PathProgramCache]: Analyzing trace with hash -1350471686, now seen corresponding path program 1 times [2020-10-26 22:35:54,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:35:54,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1261231674] [2020-10-26 22:35:54,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:35:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:54,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:54,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:54,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-26 22:35:54,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:54,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 496 [2020-10-26 22:35:54,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:54,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:35:54,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 239 [2020-10-26 22:35:54,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 22:35:54,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:54,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:35:54,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:54,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:54,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:54,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:35:54,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:54,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:35:54,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:54,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:54,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:54,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:54,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:54,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:35:54,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:54,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:54,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:54,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-26 22:35:54,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:54,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-26 22:35:54,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:54,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:54,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:54,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:54,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:55,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-26 22:35:55,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:55,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:55,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:55,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-26 22:35:55,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:55,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-26 22:35:55,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:55,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:35:55,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:55,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-26 22:35:55,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:55,234 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-10-26 22:35:55,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1261231674] [2020-10-26 22:35:55,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:35:55,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:35:55,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399285202] [2020-10-26 22:35:55,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:35:55,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:35:55,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:35:55,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:35:55,237 INFO L87 Difference]: Start difference. First operand 11333 states and 14593 transitions. Second operand 5 states. [2020-10-26 22:35:57,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:35:57,667 INFO L93 Difference]: Finished difference Result 13826 states and 17815 transitions. [2020-10-26 22:35:57,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:35:57,675 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 249 [2020-10-26 22:35:57,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:35:57,719 INFO L225 Difference]: With dead ends: 13826 [2020-10-26 22:35:57,719 INFO L226 Difference]: Without dead ends: 13823 [2020-10-26 22:35:57,725 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 [2020-10-26 22:35:57,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13823 states. [2020-10-26 22:35:57,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13823 to 13241. [2020-10-26 22:35:57,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13241 states. [2020-10-26 22:35:58,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13241 states to 13241 states and 17120 transitions. [2020-10-26 22:35:58,032 INFO L78 Accepts]: Start accepts. Automaton has 13241 states and 17120 transitions. Word has length 249 [2020-10-26 22:35:58,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:35:58,033 INFO L481 AbstractCegarLoop]: Abstraction has 13241 states and 17120 transitions. [2020-10-26 22:35:58,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:35:58,033 INFO L276 IsEmpty]: Start isEmpty. Operand 13241 states and 17120 transitions. [2020-10-26 22:35:58,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-10-26 22:35:58,039 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:35:58,040 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:35:58,040 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 22:35:58,040 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:35:58,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:35:58,041 INFO L82 PathProgramCache]: Analyzing trace with hash -955453470, now seen corresponding path program 1 times [2020-10-26 22:35:58,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:35:58,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1044674824] [2020-10-26 22:35:58,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:35:58,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:58,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:58,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:58,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:58,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-26 22:35:58,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:35:58,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 805 [2020-10-26 22:35:58,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:58,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:35:58,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-10-26 22:35:58,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-26 22:35:58,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:59,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:35:59,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:59,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:59,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:59,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:35:59,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:59,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:35:59,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:59,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:59,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:59,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:59,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:59,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:35:59,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:59,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:59,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:59,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-26 22:35:59,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:59,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-26 22:35:59,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:59,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:35:59,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:59,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-26 22:35:59,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:59,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-26 22:35:59,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:59,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:59,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:59,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:59,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-26 22:35:59,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:35:59,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-26 22:35:59,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:59,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:35:59,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:35:59,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-26 22:35:59,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:59,686 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 89 proven. 14 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 22:35:59,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1044674824] [2020-10-26 22:35:59,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:35:59,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:35:59,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072540721] [2020-10-26 22:35:59,688 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:35:59,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:35:59,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:35:59,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:35:59,689 INFO L87 Difference]: Start difference. First operand 13241 states and 17120 transitions. Second operand 7 states. [2020-10-26 22:36:04,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:36:04,399 INFO L93 Difference]: Finished difference Result 29175 states and 37736 transitions. [2020-10-26 22:36:04,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:36:04,400 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 249 [2020-10-26 22:36:04,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:36:04,452 INFO L225 Difference]: With dead ends: 29175 [2020-10-26 22:36:04,453 INFO L226 Difference]: Without dead ends: 16318 [2020-10-26 22:36:04,482 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:36:04,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16318 states. [2020-10-26 22:36:04,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16318 to 16289. [2020-10-26 22:36:04,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16289 states. [2020-10-26 22:36:04,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16289 states to 16289 states and 20708 transitions. [2020-10-26 22:36:04,823 INFO L78 Accepts]: Start accepts. Automaton has 16289 states and 20708 transitions. Word has length 249 [2020-10-26 22:36:04,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:36:04,824 INFO L481 AbstractCegarLoop]: Abstraction has 16289 states and 20708 transitions. [2020-10-26 22:36:04,824 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:36:04,824 INFO L276 IsEmpty]: Start isEmpty. Operand 16289 states and 20708 transitions. [2020-10-26 22:36:04,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-10-26 22:36:04,831 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:36:04,832 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2020-10-26 22:36:04,832 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 22:36:04,832 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:36:04,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:36:04,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1791510077, now seen corresponding path program 1 times [2020-10-26 22:36:04,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:36:04,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [434052227] [2020-10-26 22:36:04,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:36:04,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:36:04,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:36:05,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:36:05,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:36:06,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:36:06,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-26 22:36:06,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:36:06,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1999 [2020-10-26 22:36:06,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:36:06,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:36:06,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-26 22:36:06,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-26 22:36:06,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:36:07,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:36:07,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:36:07,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:36:07,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:36:07,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:36:07,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:36:07,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 22:36:07,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:36:07,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:36:07,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:36:07,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:36:07,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:36:07,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:36:07,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:36:07,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:36:07,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:36:07,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-26 22:36:07,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:36:07,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-26 22:36:07,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:36:07,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:36:07,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:36:07,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-26 22:36:07,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:36:07,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-26 22:36:07,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:36:07,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:36:07,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:36:07,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-26 22:36:07,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:36:07,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-10-26 22:36:07,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:36:07,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:36:07,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:36:07,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-26 22:36:07,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:36:07,796 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 132 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:36:07,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [434052227] [2020-10-26 22:36:07,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:36:07,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:36:07,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475999196] [2020-10-26 22:36:07,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:36:07,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:36:07,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:36:07,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:36:07,801 INFO L87 Difference]: Start difference. First operand 16289 states and 20708 transitions. Second operand 7 states. [2020-10-26 22:36:11,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:36:11,220 INFO L93 Difference]: Finished difference Result 36398 states and 46496 transitions. [2020-10-26 22:36:11,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:36:11,222 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 260 [2020-10-26 22:36:11,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:36:11,286 INFO L225 Difference]: With dead ends: 36398 [2020-10-26 22:36:11,286 INFO L226 Difference]: Without dead ends: 20505 [2020-10-26 22:36:11,316 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:36:11,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20505 states. [2020-10-26 22:36:11,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20505 to 20289. [2020-10-26 22:36:11,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20289 states. [2020-10-26 22:36:11,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20289 states to 20289 states and 25687 transitions. [2020-10-26 22:36:11,894 INFO L78 Accepts]: Start accepts. Automaton has 20289 states and 25687 transitions. Word has length 260 [2020-10-26 22:36:11,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:36:11,895 INFO L481 AbstractCegarLoop]: Abstraction has 20289 states and 25687 transitions. [2020-10-26 22:36:11,895 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:36:11,895 INFO L276 IsEmpty]: Start isEmpty. Operand 20289 states and 25687 transitions. [2020-10-26 22:36:11,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-10-26 22:36:11,906 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:36:11,907 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2020-10-26 22:36:11,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 22:36:11,907 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:36:11,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:36:11,908 INFO L82 PathProgramCache]: Analyzing trace with hash -875086380, now seen corresponding path program 1 times [2020-10-26 22:36:11,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:36:11,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1221006070] [2020-10-26 22:36:11,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:36:11,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:36:12,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:36:12,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:36:12,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-26 22:36:12,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:36:12,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 452 [2020-10-26 22:36:12,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:36:12,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:36:12,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-26 22:36:12,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-26 22:36:12,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:36:12,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:36:12,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:36:12,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:36:12,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:36:12,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:36:12,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:36:12,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:36:12,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:36:12,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:36:12,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:36:12,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:36:12,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:36:12,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:36:12,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:36:12,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:36:12,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:36:12,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-26 22:36:12,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:36:12,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-26 22:36:12,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:36:12,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:36:12,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:36:12,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-26 22:36:12,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:36:12,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-26 22:36:12,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:36:12,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:36:13,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:36:13,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-26 22:36:13,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:36:13,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-10-26 22:36:13,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:36:13,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:36:13,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:36:13,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-26 22:36:13,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:36:13,308 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 135 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:36:13,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1221006070] [2020-10-26 22:36:13,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:36:13,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:36:13,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214602914] [2020-10-26 22:36:13,309 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:36:13,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:36:13,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:36:13,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:36:13,311 INFO L87 Difference]: Start difference. First operand 20289 states and 25687 transitions. Second operand 7 states. [2020-10-26 22:36:16,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:36:16,985 INFO L93 Difference]: Finished difference Result 37696 states and 48012 transitions. [2020-10-26 22:36:16,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:36:16,986 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 263 [2020-10-26 22:36:16,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:36:17,054 INFO L225 Difference]: With dead ends: 37696 [2020-10-26 22:36:17,054 INFO L226 Difference]: Without dead ends: 21081 [2020-10-26 22:36:17,081 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:36:17,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21081 states. [2020-10-26 22:36:17,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21081 to 21047. [2020-10-26 22:36:17,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21047 states. [2020-10-26 22:36:17,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21047 states to 21047 states and 26577 transitions. [2020-10-26 22:36:17,524 INFO L78 Accepts]: Start accepts. Automaton has 21047 states and 26577 transitions. Word has length 263 [2020-10-26 22:36:17,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:36:17,524 INFO L481 AbstractCegarLoop]: Abstraction has 21047 states and 26577 transitions. [2020-10-26 22:36:17,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:36:17,525 INFO L276 IsEmpty]: Start isEmpty. Operand 21047 states and 26577 transitions. [2020-10-26 22:36:17,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2020-10-26 22:36:17,532 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:36:17,533 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:36:17,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 22:36:17,533 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:36:17,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:36:17,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1484772115, now seen corresponding path program 1 times [2020-10-26 22:36:17,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:36:17,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1076731452] [2020-10-26 22:36:17,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:36:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:36:17,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:36:18,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:36:18,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:36:18,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 301 [2020-10-26 22:36:18,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:36:18,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1005 [2020-10-26 22:36:18,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:36:18,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:36:18,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 195 [2020-10-26 22:36:18,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:36:18,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:36:18,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:36:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:36:18,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:36:18,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:36:18,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:36:18,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:36:18,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:36:18,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:36:18,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:36:18,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:36:18,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:36:18,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:36:18,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:36:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:36:18,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:36:19,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:36:19,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-26 22:36:19,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:36:19,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-10-26 22:36:19,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:36:19,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:36:19,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:36:19,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-26 22:36:19,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:36:19,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-26 22:36:19,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:36:19,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:36:19,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:36:19,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-26 22:36:19,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:36:19,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-26 22:36:19,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:36:19,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:36:19,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:36:19,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-26 22:36:19,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:36:19,363 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 105 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:36:19,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1076731452] [2020-10-26 22:36:19,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:36:19,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:36:19,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650248144] [2020-10-26 22:36:19,365 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:36:19,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:36:19,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:36:19,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:36:19,366 INFO L87 Difference]: Start difference. First operand 21047 states and 26577 transitions. Second operand 7 states. [2020-10-26 22:36:23,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:36:23,628 INFO L93 Difference]: Finished difference Result 41404 states and 53136 transitions. [2020-10-26 22:36:23,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:36:23,629 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 287 [2020-10-26 22:36:23,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:36:23,695 INFO L225 Difference]: With dead ends: 41404 [2020-10-26 22:36:23,696 INFO L226 Difference]: Without dead ends: 20753 [2020-10-26 22:36:23,729 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:36:23,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20753 states. [2020-10-26 22:36:24,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20753 to 20245. [2020-10-26 22:36:24,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20245 states. [2020-10-26 22:36:24,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20245 states to 20245 states and 25115 transitions. [2020-10-26 22:36:24,174 INFO L78 Accepts]: Start accepts. Automaton has 20245 states and 25115 transitions. Word has length 287 [2020-10-26 22:36:24,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:36:24,174 INFO L481 AbstractCegarLoop]: Abstraction has 20245 states and 25115 transitions. [2020-10-26 22:36:24,174 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:36:24,175 INFO L276 IsEmpty]: Start isEmpty. Operand 20245 states and 25115 transitions. [2020-10-26 22:36:24,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2020-10-26 22:36:24,182 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:36:24,183 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2020-10-26 22:36:24,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-26 22:36:24,183 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:36:24,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:36:24,184 INFO L82 PathProgramCache]: Analyzing trace with hash 405020890, now seen corresponding path program 1 times [2020-10-26 22:36:24,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:36:24,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [727310627] [2020-10-26 22:36:24,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:36:24,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 22:36:24,258 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-26 22:36:24,258 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-26 22:36:24,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-26 22:36:24,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:36:24 BoogieIcfgContainer [2020-10-26 22:36:24,313 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 22:36:24,315 INFO L168 Benchmark]: Toolchain (without parser) took 95864.37 ms. Allocated memory was 125.8 MB in the beginning and 1.4 GB in the end (delta: 1.3 GB). Free memory was 98.0 MB in the beginning and 658.0 MB in the end (delta: -560.0 MB). Peak memory consumption was 717.9 MB. Max. memory is 8.0 GB. [2020-10-26 22:36:24,316 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 125.8 MB. Free memory is still 85.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 22:36:24,317 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1021.03 ms. Allocated memory was 125.8 MB in the beginning and 154.1 MB in the end (delta: 28.3 MB). Free memory was 97.5 MB in the beginning and 116.0 MB in the end (delta: -18.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 8.0 GB. [2020-10-26 22:36:24,317 INFO L168 Benchmark]: Boogie Preprocessor took 188.12 ms. Allocated memory is still 154.1 MB. Free memory was 116.0 MB in the beginning and 108.4 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. [2020-10-26 22:36:24,318 INFO L168 Benchmark]: RCFGBuilder took 2359.63 ms. Allocated memory is still 154.1 MB. Free memory was 107.9 MB in the beginning and 69.2 MB in the end (delta: 38.7 MB). Peak memory consumption was 69.7 MB. Max. memory is 8.0 GB. [2020-10-26 22:36:24,318 INFO L168 Benchmark]: TraceAbstraction took 92282.81 ms. Allocated memory was 154.1 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 68.7 MB in the beginning and 658.0 MB in the end (delta: -589.3 MB). Peak memory consumption was 659.6 MB. Max. memory is 8.0 GB. [2020-10-26 22:36:24,321 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 125.8 MB. Free memory is still 85.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1021.03 ms. Allocated memory was 125.8 MB in the beginning and 154.1 MB in the end (delta: 28.3 MB). Free memory was 97.5 MB in the beginning and 116.0 MB in the end (delta: -18.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 188.12 ms. Allocated memory is still 154.1 MB. Free memory was 116.0 MB in the beginning and 108.4 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2359.63 ms. Allocated memory is still 154.1 MB. Free memory was 107.9 MB in the beginning and 69.2 MB in the end (delta: 38.7 MB). Peak memory consumption was 69.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 92282.81 ms. Allocated memory was 154.1 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 68.7 MB in the beginning and 658.0 MB in the end (delta: -589.3 MB). Peak memory consumption was 659.6 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 inputA = 1; [L10] int inputD = 4; [L11] int inputB = 2; [L12] int inputE = 5; [L13] int inputF = 6; [L14] int inputC = 3; [L17] int a29 = 130; [L18] int a4 = 1; [L19] int a23 = 312; [L20] int a8 = 15; [L21] int a25 = 10; [L22] int a3 = 1; [L1033] int output = -1; [L1036] COND TRUE 1 [L1039] int input; [L1040] input = __VERIFIER_nondet_int() [L1041] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L1044] CALL, EXPR calculate_output(input) [L25] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==10)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L28] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L31] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==9)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L34] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==10)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L37] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==9)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L40] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L43] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==13)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L46] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==11)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L49] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==10)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L52] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L55] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==9)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L58] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==12)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L61] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==13)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L64] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L67] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L70] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==11)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L73] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L76] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L79] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==11)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L82] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L85] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L88] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==9)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L91] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L94] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L97] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==13)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L100] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L103] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L106] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L109] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==13)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L112] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L115] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L118] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==9)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L121] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==12)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L124] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L127] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L130] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==11)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L133] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L136] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==11)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L139] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==10)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L142] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==10)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L145] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==12)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L148] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L151] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L154] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==12)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L157] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L160] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L163] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L166] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L169] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==12)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L172] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==12)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L175] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==9)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L178] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==11)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L181] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==10)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L184] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==9)) && (a3==1)) && 306 < a23 ) && (a8==15))) [L187] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==13)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L190] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L193] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L196] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L199] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L202] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==13)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L205] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L209] COND FALSE !((( ((140 < a29) && (245 >= a29)) && ((a25==12) && ( a23 <= -43 && ((a8==15) && ((input == 6) && (a3==1)))))) && !(a4==1))) [L216] COND FALSE !((!(a4==1) && (((a3==1) && ((((((a25==13) && ((140 < a29) && (245 >= a29)) ) || ((a25==9) && ((245 < a29) && (277 >= a29)) )) || ( ((245 < a29) && (277 >= a29)) && (a25==10))) && (input == 4)) && a23 <= -43 )) && (a8==15)))) [L223] COND FALSE !(((a25==11) && (!(a4==1) && (((((input == 2) && (a3==1)) && a23 <= -43 ) && (a8==15)) && ((245 < a29) && (277 >= a29)) )))) [L229] COND FALSE !(((( a29 <= 140 && ((a3==1) && (((input == 5) && (a25==13)) && (a4==1)))) && (a8==15)) && 306 < a23 )) [L235] COND FALSE !((((a8==15) && (((((((a4==1) && 277 < a29 ) && (a25==12)) && 306 < a23 ) || ( 306 < a23 && (((a4==1) && 277 < a29 ) && (a25==13)))) || ((( a29 <= 140 && !(a4==1)) && (a25==9)) && a23 <= -43 )) && (input == 6))) && (a3==1))) [L242] COND FALSE !(((((input == 4) && (( a23 <= -43 && ((a25==9) && (!(a4==1) && a29 <= 140 ))) || (((( 277 < a29 && (a4==1)) && (a25==12)) && 306 < a23 ) || ( 306 < a23 && ((a25==13) && ( 277 < a29 && (a4==1))))))) && (a8==15)) && (a3==1))) [L249] COND FALSE !((((a3==1) && (!(a4==1) && (( a29 <= 140 && ((input == 1) && ((a25==12) || ((a25==10) || (a25==11))))) && ((-43 < a23) && (138 >= a23)) ))) && (a8==15))) [L256] COND FALSE !(((( ((245 < a29) && (277 >= a29)) && (( a23 <= -43 && (!(a4==1) && (input == 1))) && (a25==11))) && (a8==15)) && (a3==1))) [L262] COND FALSE !(((((a4==1) && (((input == 1) && (( ((245 < a29) && (277 >= a29)) && (a25==10)) || (((a25==13) && ((140 < a29) && (245 >= a29)) ) || ((a25==9) && ((245 < a29) && (277 >= a29)) )))) && (a8==15))) && 306 < a23 ) && (a3==1))) [L267] COND FALSE !((( 277 < a29 && (((a8==15) && ( a23 <= -43 && ((input == 2) && (a3==1)))) && !(a4==1))) && (a25==13))) [L270] COND FALSE !(( a29 <= 140 && ((((a8==15) && ((a3==1) && ((input == 1) && ((a25==12) || (a25==13))))) && !(a4==1)) && a23 <= -43 ))) [L277] COND FALSE !((((a4==1) && ((a8==15) && (((a3==1) && (((a25==9) || (a25==10)) && (input == 5))) && ((140 < a29) && (245 >= a29)) ))) && 306 < a23 )) [L282] COND FALSE !(((a3==1) && (((((input == 5) && (( ((245 < a29) && (277 >= a29)) && (a25==10)) || (( ((140 < a29) && (245 >= a29)) && (a25==13)) || ( ((245 < a29) && (277 >= a29)) && (a25==9))))) && (a8==15)) && !(a4==1)) && a23 <= -43 ))) [L289] COND FALSE !(((a8==15) && ((((!(a4==1) && (((a25==12) || (a25==13)) && (input == 4))) && a23 <= -43 ) && a29 <= 140 ) && (a3==1)))) [L296] COND FALSE !(((a8==15) && (!(a4==1) && ( a23 <= -43 && ((a3==1) && ( 277 < a29 && (((a25==12) || ((a25==10) || (a25==11))) && (input == 6)))))))) [L301] COND FALSE !(( 306 < a23 && (((a8==15) && ((a3==1) && ((a4==1) && (((a25==11) || (a25==12)) && (input == 6))))) && ((140 < a29) && (245 >= a29)) ))) [L307] COND FALSE !(((((a8==15) && ( a29 <= 140 && ( a23 <= -43 && ((input == 2) && ((a25==10) || (a25==11)))))) && !(a4==1)) && (a3==1))) [L312] COND FALSE !(((a3==1) && ( ((245 < a29) && (277 >= a29)) && (((a4==1) && ((a8==15) && ((((a25==11) || (a25==12)) || (a25==13)) && (input == 5)))) && 306 < a23 )))) [L319] COND FALSE !(((((a8==15) && (((a4==1) && ((input == 2) && ((a25==13) || ((a25==11) || (a25==12))))) && ((245 < a29) && (277 >= a29)) )) && 306 < a23 ) && (a3==1))) [L324] COND FALSE !((( 306 < a23 && ((a8==15) && ((((input == 6) && ((a25==9) || (a25==10))) && ((140 < a29) && (245 >= a29)) ) && (a3==1)))) && (a4==1))) [L331] COND FALSE !(((((a8==15) && (((((a25==11) || (a25==12)) && (input == 4)) && 306 < a23 ) && (a3==1))) && (a4==1)) && ((140 < a29) && (245 >= a29)) )) [L336] COND FALSE !(( a23 <= -43 && ( ((140 < a29) && (245 >= a29)) && (((a8==15) && (((input == 4) && ((a25==11) || ((a25==9) || (a25==10)))) && !(a4==1))) && (a3==1))))) [L342] COND FALSE !((((((((((a25==12) && ((245 < a29) && (277 >= a29)) ) || ((a25==13) && ((245 < a29) && (277 >= a29)) )) || ( 277 < a29 && (a25==9))) && (input == 1)) && a23 <= -43 ) && (a8==15)) && !(a4==1)) && (a3==1))) [L348] COND FALSE !((!(a4==1) && ( a29 <= 140 && ((((((a25==12) || (a25==13)) && (input == 2)) && a23 <= -43 ) && (a3==1)) && (a8==15))))) [L355] COND FALSE !(((a8==15) && (( 306 < a23 && ((a3==1) && ((input == 4) && (( ((245 < a29) && (277 >= a29)) && (a25==10)) || (( ((140 < a29) && (245 >= a29)) && (a25==13)) || ((a25==9) && ((245 < a29) && (277 >= a29)) )))))) && (a4==1)))) [L360] COND FALSE !(((((input == 3) && (( a23 <= -43 && ((!(a4==1) && a29 <= 140 ) && (a25==9))) || (( 306 < a23 && (( 277 < a29 && (a4==1)) && (a25==12))) || ((((a4==1) && 277 < a29 ) && (a25==13)) && 306 < a23 )))) && (a3==1)) && (a8==15))) [L367] COND FALSE !(( 306 < a23 && ((a4==1) && (((((((a25==11) || (a25==12)) || (a25==13)) && (input == 3)) && (a8==15)) && (a3==1)) && ((245 < a29) && (277 >= a29)) )))) [L372] COND FALSE !(( ((245 < a29) && (277 >= a29)) && (((((!(a4==1) && (input == 6)) && (a3==1)) && (a25==11)) && (a8==15)) && a23 <= -43 ))) [L379] COND FALSE !((( ((-43 < a23) && (138 >= a23)) && (((a8==15) && ((input == 2) && ((( a29 <= 140 && (a25==13)) || ( ((140 < a29) && (245 >= a29)) && (a25==9))) || ((a25==10) && ((140 < a29) && (245 >= a29)) )))) && (a3==1))) && !(a4==1))) [L386] COND FALSE !(( a29 <= 140 && ((a8==15) && ((((((a25==10) || (a25==11)) && (input == 3)) && a23 <= -43 ) && (a3==1)) && !(a4==1))))) [L393] COND FALSE !((((((a8==15) && (((input == 3) && (((a25==10) || (a25==11)) || (a25==12))) && (a3==1))) && a23 <= -43 ) && !(a4==1)) && 277 < a29 )) [L400] COND FALSE !(((!(a4==1) && ((a25==9) && ((a8==15) && ((a3==1) && ( ((-43 < a23) && (138 >= a23)) && (input == 1)))))) && a29 <= 140 )) [L413] COND FALSE !(((a8==15) && ((( 306 < a23 && (((((a25==11) || (a25==12)) || (a25==13)) && (input == 6)) && ((245 < a29) && (277 >= a29)) )) && (a4==1)) && (a3==1)))) [L419] COND FALSE !((((((!(a4==1) && ((a8==15) && (input == 2))) && (a3==1)) && ((140 < a29) && (245 >= a29)) ) && (a25==12)) && a23 <= -43 )) [L424] COND FALSE !(( a23 <= -43 && (( a29 <= 140 && ((a8==15) && (!(a4==1) && (((a25==12) || (a25==13)) && (input == 3))))) && (a3==1)))) [L431] COND FALSE !(((((((input == 6) && ((((a25==13) && a29 <= 140 ) || ( ((140 < a29) && (245 >= a29)) && (a25==9))) || ( ((140 < a29) && (245 >= a29)) && (a25==10)))) && (a8==15)) && (a3==1)) && !(a4==1)) && ((-43 < a23) && (138 >= a23)) )) [L438] COND FALSE !(((!(a4==1) && (((((a3==1) && (input == 4)) && (a25==11)) && ((245 < a29) && (277 >= a29)) ) && a23 <= -43 )) && (a8==15))) [L445] COND FALSE !(((a3==1) && ( ((140 < a29) && (245 >= a29)) && ( a23 <= -43 && ((a8==15) && (!(a4==1) && ((((a25==9) || (a25==10)) || (a25==11)) && (input == 3)))))))) [L452] COND FALSE !(((((!(a4==1) && (((((a25==10) || (a25==11)) || (a25==12)) && (input == 4)) && 277 < a29 )) && a23 <= -43 ) && (a8==15)) && (a3==1))) [L458] COND FALSE !(( ((140 < a29) && (245 >= a29)) && ((a8==15) && (((a25==12) && (!(a4==1) && ( a23 <= -43 && (input == 4)))) && (a3==1))))) [L465] COND FALSE !(((a3==1) && ((((((( 277 < a29 && (a4==1)) && (a25==12)) && 306 < a23 ) || ( 306 < a23 && (((a4==1) && 277 < a29 ) && (a25==13)))) || (((a25==9) && (!(a4==1) && a29 <= 140 )) && a23 <= -43 )) && (input == 2)) && (a8==15)))) [L472] COND FALSE !(((((input == 5) && (((((a25==12) && ((a4==1) && 277 < a29 )) && 306 < a23 ) || ((( 277 < a29 && (a4==1)) && (a25==13)) && 306 < a23 )) || ((( a29 <= 140 && !(a4==1)) && (a25==9)) && a23 <= -43 ))) && (a8==15)) && (a3==1))) [L479] COND FALSE !(((a25==12) && (((a3==1) && ((((input == 1) && a23 <= -43 ) && ((140 < a29) && (245 >= a29)) ) && !(a4==1))) && (a8==15)))) [L489] COND FALSE !((((a8==15) && (( ((-43 < a23) && (138 >= a23)) && ((input == 1) && (( ((140 < a29) && (245 >= a29)) && (a25==10)) || (((a25==13) && a29 <= 140 ) || ((a25==9) && ((140 < a29) && (245 >= a29)) ))))) && (a3==1))) && !(a4==1))) [L502] COND FALSE !(((a3==1) && ((a8==15) && (((((( ((140 < a29) && (245 >= a29)) && (a25==13)) || ((a25==9) && ((245 < a29) && (277 >= a29)) )) || ( ((245 < a29) && (277 >= a29)) && (a25==10))) && (input == 3)) && !(a4==1)) && a23 <= -43 )))) [L509] COND FALSE !((( a29 <= 140 && ( ((-43 < a23) && (138 >= a23)) && ((a3==1) && ((a8==15) && (((a25==12) || ((a25==10) || (a25==11))) && (input == 2)))))) && !(a4==1))) [L516] COND FALSE !((((a4==1) && ( 306 < a23 && ((((input == 3) && ((a25==9) || (a25==10))) && ((140 < a29) && (245 >= a29)) ) && (a3==1)))) && (a8==15))) [L528] COND FALSE !(((a4==1) && ((((a3==1) && ( 306 < a23 && (((a25==12) || ((a25==10) || (a25==11))) && (input == 4)))) && a29 <= 140 ) && (a8==15)))) [L533] COND FALSE !((((( ((-43 < a23) && (138 >= a23)) && ((!(a4==1) && (input == 5)) && (a3==1))) && (a25==9)) && a29 <= 140 ) && (a8==15))) [L539] COND FALSE !(( 306 < a23 && (((a8==15) && ((((input == 1) && ((a25==11) || (a25==12))) && (a4==1)) && (a3==1))) && ((140 < a29) && (245 >= a29)) ))) [L544] COND FALSE !(((((a8==15) && ( a23 <= -43 && (((input == 1) && ((a25==10) || (a25==11))) && a29 <= 140 ))) && !(a4==1)) && (a3==1))) [L551] COND FALSE !(((( a23 <= -43 && (!(a4==1) && ((a3==1) && (((a25==11) || ((a25==9) || (a25==10))) && (input == 5))))) && (a8==15)) && ((140 < a29) && (245 >= a29)) )) [L557] COND FALSE !(((a3==1) && ( ((-43 < a23) && (138 >= a23)) && ((a8==15) && ((((((a25==10) || (a25==11)) || (a25==12)) && (input == 5)) && a29 <= 140 ) && !(a4==1)))))) [L563] COND FALSE !(( 306 < a23 && (((a3==1) && ( 277 < a29 && (((input == 4) && (((a25==9) || (a25==10)) || (a25==11))) && (a8==15)))) && (a4==1)))) [L568] COND FALSE !((!(a4==1) && ( a23 <= -43 && ((a8==15) && (((((a25==12) || ((a25==10) || (a25==11))) && (input == 1)) && (a3==1)) && 277 < a29 ))))) [L574] COND FALSE !(( 277 < a29 && (((a25==13) && ( a23 <= -43 && (!(a4==1) && ((input == 1) && (a3==1))))) && (a8==15)))) [L577] COND FALSE !(((( ((-43 < a23) && (138 >= a23)) && (((a25==9) && ((input == 4) && !(a4==1))) && a29 <= 140 )) && (a3==1)) && (a8==15))) [L583] COND FALSE !(((a8==15) && ((((a3==1) && (((((a25==10) || (a25==11)) || (a25==12)) && (input == 3)) && (a4==1))) && 306 < a23 ) && a29 <= 140 ))) [L588] COND FALSE !((( ((-43 < a23) && (138 >= a23)) && ((a3==1) && (!(a4==1) && ((input == 4) && (((a25==10) && ((140 < a29) && (245 >= a29)) ) || (((a25==13) && a29 <= 140 ) || ( ((140 < a29) && (245 >= a29)) && (a25==9)))))))) && (a8==15))) [L600] COND FALSE !(((((a8==15) && ((!(a4==1) && (((a25==11) || ((a25==9) || (a25==10))) && (input == 6))) && (a3==1))) && a23 <= -43 ) && ((140 < a29) && (245 >= a29)) )) [L605] COND TRUE ( a29 <= 140 && (((a4==1) && ((a8==15) && (((input == 6) && (((a25==10) || (a25==11)) || (a25==12))) && 306 < a23 ))) && (a3==1))) [L606] COND TRUE (a4==1) [L607] a29 = ((((a29 % 15)+ 262) - -1) + -3) [L608] a23 = ((((a23 - 600285) - 8) + 385102) + -384893) [L609] a4 = 0 [L610] a25 = 12 [L616] return 24; [L1044] RET, EXPR calculate_output(input) [L1044] output = calculate_output(input) [L1036] COND TRUE 1 [L1039] int input; [L1040] input = __VERIFIER_nondet_int() [L1041] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L1044] CALL, EXPR calculate_output(input) [L25] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==10)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L28] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L31] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==9)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L34] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==10)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L37] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==9)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L40] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L43] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==13)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L46] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==11)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L49] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==10)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L52] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L55] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==9)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L58] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==12)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L61] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==13)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L64] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L67] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L70] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==11)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L73] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L76] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L79] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==11)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L82] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L85] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L88] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==9)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L91] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L94] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L97] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==13)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L100] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L103] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L106] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L109] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==13)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L112] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L115] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L118] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==9)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L121] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==12)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L124] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L127] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L130] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==11)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L133] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L136] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==11)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L139] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==10)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L142] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==10)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L145] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==12)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L148] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L151] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L154] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==12)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L157] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L160] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L163] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L166] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L169] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==12)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L172] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==12)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L175] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==9)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L178] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==11)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L181] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==10)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L184] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==9)) && (a3==1)) && 306 < a23 ) && (a8==15))) [L187] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==13)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L190] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L193] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L196] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L199] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L202] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==13)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L205] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L209] COND FALSE !((( ((140 < a29) && (245 >= a29)) && ((a25==12) && ( a23 <= -43 && ((a8==15) && ((input == 6) && (a3==1)))))) && !(a4==1))) [L216] COND FALSE !((!(a4==1) && (((a3==1) && ((((((a25==13) && ((140 < a29) && (245 >= a29)) ) || ((a25==9) && ((245 < a29) && (277 >= a29)) )) || ( ((245 < a29) && (277 >= a29)) && (a25==10))) && (input == 4)) && a23 <= -43 )) && (a8==15)))) [L223] COND FALSE !(((a25==11) && (!(a4==1) && (((((input == 2) && (a3==1)) && a23 <= -43 ) && (a8==15)) && ((245 < a29) && (277 >= a29)) )))) [L229] COND FALSE !(((( a29 <= 140 && ((a3==1) && (((input == 5) && (a25==13)) && (a4==1)))) && (a8==15)) && 306 < a23 )) [L235] COND FALSE !((((a8==15) && (((((((a4==1) && 277 < a29 ) && (a25==12)) && 306 < a23 ) || ( 306 < a23 && (((a4==1) && 277 < a29 ) && (a25==13)))) || ((( a29 <= 140 && !(a4==1)) && (a25==9)) && a23 <= -43 )) && (input == 6))) && (a3==1))) [L242] COND FALSE !(((((input == 4) && (( a23 <= -43 && ((a25==9) && (!(a4==1) && a29 <= 140 ))) || (((( 277 < a29 && (a4==1)) && (a25==12)) && 306 < a23 ) || ( 306 < a23 && ((a25==13) && ( 277 < a29 && (a4==1))))))) && (a8==15)) && (a3==1))) [L249] COND FALSE !((((a3==1) && (!(a4==1) && (( a29 <= 140 && ((input == 1) && ((a25==12) || ((a25==10) || (a25==11))))) && ((-43 < a23) && (138 >= a23)) ))) && (a8==15))) [L256] COND FALSE !(((( ((245 < a29) && (277 >= a29)) && (( a23 <= -43 && (!(a4==1) && (input == 1))) && (a25==11))) && (a8==15)) && (a3==1))) [L262] COND FALSE !(((((a4==1) && (((input == 1) && (( ((245 < a29) && (277 >= a29)) && (a25==10)) || (((a25==13) && ((140 < a29) && (245 >= a29)) ) || ((a25==9) && ((245 < a29) && (277 >= a29)) )))) && (a8==15))) && 306 < a23 ) && (a3==1))) [L267] COND FALSE !((( 277 < a29 && (((a8==15) && ( a23 <= -43 && ((input == 2) && (a3==1)))) && !(a4==1))) && (a25==13))) [L270] COND FALSE !(( a29 <= 140 && ((((a8==15) && ((a3==1) && ((input == 1) && ((a25==12) || (a25==13))))) && !(a4==1)) && a23 <= -43 ))) [L277] COND FALSE !((((a4==1) && ((a8==15) && (((a3==1) && (((a25==9) || (a25==10)) && (input == 5))) && ((140 < a29) && (245 >= a29)) ))) && 306 < a23 )) [L282] COND FALSE !(((a3==1) && (((((input == 5) && (( ((245 < a29) && (277 >= a29)) && (a25==10)) || (( ((140 < a29) && (245 >= a29)) && (a25==13)) || ( ((245 < a29) && (277 >= a29)) && (a25==9))))) && (a8==15)) && !(a4==1)) && a23 <= -43 ))) [L289] COND FALSE !(((a8==15) && ((((!(a4==1) && (((a25==12) || (a25==13)) && (input == 4))) && a23 <= -43 ) && a29 <= 140 ) && (a3==1)))) [L296] COND FALSE !(((a8==15) && (!(a4==1) && ( a23 <= -43 && ((a3==1) && ( 277 < a29 && (((a25==12) || ((a25==10) || (a25==11))) && (input == 6)))))))) [L301] COND FALSE !(( 306 < a23 && (((a8==15) && ((a3==1) && ((a4==1) && (((a25==11) || (a25==12)) && (input == 6))))) && ((140 < a29) && (245 >= a29)) ))) [L307] COND FALSE !(((((a8==15) && ( a29 <= 140 && ( a23 <= -43 && ((input == 2) && ((a25==10) || (a25==11)))))) && !(a4==1)) && (a3==1))) [L312] COND FALSE !(((a3==1) && ( ((245 < a29) && (277 >= a29)) && (((a4==1) && ((a8==15) && ((((a25==11) || (a25==12)) || (a25==13)) && (input == 5)))) && 306 < a23 )))) [L319] COND FALSE !(((((a8==15) && (((a4==1) && ((input == 2) && ((a25==13) || ((a25==11) || (a25==12))))) && ((245 < a29) && (277 >= a29)) )) && 306 < a23 ) && (a3==1))) [L324] COND FALSE !((( 306 < a23 && ((a8==15) && ((((input == 6) && ((a25==9) || (a25==10))) && ((140 < a29) && (245 >= a29)) ) && (a3==1)))) && (a4==1))) [L331] COND FALSE !(((((a8==15) && (((((a25==11) || (a25==12)) && (input == 4)) && 306 < a23 ) && (a3==1))) && (a4==1)) && ((140 < a29) && (245 >= a29)) )) [L336] COND FALSE !(( a23 <= -43 && ( ((140 < a29) && (245 >= a29)) && (((a8==15) && (((input == 4) && ((a25==11) || ((a25==9) || (a25==10)))) && !(a4==1))) && (a3==1))))) [L342] COND FALSE !((((((((((a25==12) && ((245 < a29) && (277 >= a29)) ) || ((a25==13) && ((245 < a29) && (277 >= a29)) )) || ( 277 < a29 && (a25==9))) && (input == 1)) && a23 <= -43 ) && (a8==15)) && !(a4==1)) && (a3==1))) [L348] COND FALSE !((!(a4==1) && ( a29 <= 140 && ((((((a25==12) || (a25==13)) && (input == 2)) && a23 <= -43 ) && (a3==1)) && (a8==15))))) [L355] COND FALSE !(((a8==15) && (( 306 < a23 && ((a3==1) && ((input == 4) && (( ((245 < a29) && (277 >= a29)) && (a25==10)) || (( ((140 < a29) && (245 >= a29)) && (a25==13)) || ((a25==9) && ((245 < a29) && (277 >= a29)) )))))) && (a4==1)))) [L360] COND FALSE !(((((input == 3) && (( a23 <= -43 && ((!(a4==1) && a29 <= 140 ) && (a25==9))) || (( 306 < a23 && (( 277 < a29 && (a4==1)) && (a25==12))) || ((((a4==1) && 277 < a29 ) && (a25==13)) && 306 < a23 )))) && (a3==1)) && (a8==15))) [L367] COND FALSE !(( 306 < a23 && ((a4==1) && (((((((a25==11) || (a25==12)) || (a25==13)) && (input == 3)) && (a8==15)) && (a3==1)) && ((245 < a29) && (277 >= a29)) )))) [L372] COND FALSE !(( ((245 < a29) && (277 >= a29)) && (((((!(a4==1) && (input == 6)) && (a3==1)) && (a25==11)) && (a8==15)) && a23 <= -43 ))) [L379] COND FALSE !((( ((-43 < a23) && (138 >= a23)) && (((a8==15) && ((input == 2) && ((( a29 <= 140 && (a25==13)) || ( ((140 < a29) && (245 >= a29)) && (a25==9))) || ((a25==10) && ((140 < a29) && (245 >= a29)) )))) && (a3==1))) && !(a4==1))) [L386] COND FALSE !(( a29 <= 140 && ((a8==15) && ((((((a25==10) || (a25==11)) && (input == 3)) && a23 <= -43 ) && (a3==1)) && !(a4==1))))) [L393] COND FALSE !((((((a8==15) && (((input == 3) && (((a25==10) || (a25==11)) || (a25==12))) && (a3==1))) && a23 <= -43 ) && !(a4==1)) && 277 < a29 )) [L400] COND FALSE !(((!(a4==1) && ((a25==9) && ((a8==15) && ((a3==1) && ( ((-43 < a23) && (138 >= a23)) && (input == 1)))))) && a29 <= 140 )) [L413] COND FALSE !(((a8==15) && ((( 306 < a23 && (((((a25==11) || (a25==12)) || (a25==13)) && (input == 6)) && ((245 < a29) && (277 >= a29)) )) && (a4==1)) && (a3==1)))) [L419] COND FALSE !((((((!(a4==1) && ((a8==15) && (input == 2))) && (a3==1)) && ((140 < a29) && (245 >= a29)) ) && (a25==12)) && a23 <= -43 )) [L424] COND FALSE !(( a23 <= -43 && (( a29 <= 140 && ((a8==15) && (!(a4==1) && (((a25==12) || (a25==13)) && (input == 3))))) && (a3==1)))) [L431] COND FALSE !(((((((input == 6) && ((((a25==13) && a29 <= 140 ) || ( ((140 < a29) && (245 >= a29)) && (a25==9))) || ( ((140 < a29) && (245 >= a29)) && (a25==10)))) && (a8==15)) && (a3==1)) && !(a4==1)) && ((-43 < a23) && (138 >= a23)) )) [L438] COND FALSE !(((!(a4==1) && (((((a3==1) && (input == 4)) && (a25==11)) && ((245 < a29) && (277 >= a29)) ) && a23 <= -43 )) && (a8==15))) [L445] COND FALSE !(((a3==1) && ( ((140 < a29) && (245 >= a29)) && ( a23 <= -43 && ((a8==15) && (!(a4==1) && ((((a25==9) || (a25==10)) || (a25==11)) && (input == 3)))))))) [L452] COND FALSE !(((((!(a4==1) && (((((a25==10) || (a25==11)) || (a25==12)) && (input == 4)) && 277 < a29 )) && a23 <= -43 ) && (a8==15)) && (a3==1))) [L458] COND FALSE !(( ((140 < a29) && (245 >= a29)) && ((a8==15) && (((a25==12) && (!(a4==1) && ( a23 <= -43 && (input == 4)))) && (a3==1))))) [L465] COND FALSE !(((a3==1) && ((((((( 277 < a29 && (a4==1)) && (a25==12)) && 306 < a23 ) || ( 306 < a23 && (((a4==1) && 277 < a29 ) && (a25==13)))) || (((a25==9) && (!(a4==1) && a29 <= 140 )) && a23 <= -43 )) && (input == 2)) && (a8==15)))) [L472] COND FALSE !(((((input == 5) && (((((a25==12) && ((a4==1) && 277 < a29 )) && 306 < a23 ) || ((( 277 < a29 && (a4==1)) && (a25==13)) && 306 < a23 )) || ((( a29 <= 140 && !(a4==1)) && (a25==9)) && a23 <= -43 ))) && (a8==15)) && (a3==1))) [L479] COND FALSE !(((a25==12) && (((a3==1) && ((((input == 1) && a23 <= -43 ) && ((140 < a29) && (245 >= a29)) ) && !(a4==1))) && (a8==15)))) [L489] COND FALSE !((((a8==15) && (( ((-43 < a23) && (138 >= a23)) && ((input == 1) && (( ((140 < a29) && (245 >= a29)) && (a25==10)) || (((a25==13) && a29 <= 140 ) || ((a25==9) && ((140 < a29) && (245 >= a29)) ))))) && (a3==1))) && !(a4==1))) [L502] COND FALSE !(((a3==1) && ((a8==15) && (((((( ((140 < a29) && (245 >= a29)) && (a25==13)) || ((a25==9) && ((245 < a29) && (277 >= a29)) )) || ( ((245 < a29) && (277 >= a29)) && (a25==10))) && (input == 3)) && !(a4==1)) && a23 <= -43 )))) [L509] COND FALSE !((( a29 <= 140 && ( ((-43 < a23) && (138 >= a23)) && ((a3==1) && ((a8==15) && (((a25==12) || ((a25==10) || (a25==11))) && (input == 2)))))) && !(a4==1))) [L516] COND FALSE !((((a4==1) && ( 306 < a23 && ((((input == 3) && ((a25==9) || (a25==10))) && ((140 < a29) && (245 >= a29)) ) && (a3==1)))) && (a8==15))) [L528] COND FALSE !(((a4==1) && ((((a3==1) && ( 306 < a23 && (((a25==12) || ((a25==10) || (a25==11))) && (input == 4)))) && a29 <= 140 ) && (a8==15)))) [L533] COND FALSE !((((( ((-43 < a23) && (138 >= a23)) && ((!(a4==1) && (input == 5)) && (a3==1))) && (a25==9)) && a29 <= 140 ) && (a8==15))) [L539] COND FALSE !(( 306 < a23 && (((a8==15) && ((((input == 1) && ((a25==11) || (a25==12))) && (a4==1)) && (a3==1))) && ((140 < a29) && (245 >= a29)) ))) [L544] COND FALSE !(((((a8==15) && ( a23 <= -43 && (((input == 1) && ((a25==10) || (a25==11))) && a29 <= 140 ))) && !(a4==1)) && (a3==1))) [L551] COND FALSE !(((( a23 <= -43 && (!(a4==1) && ((a3==1) && (((a25==11) || ((a25==9) || (a25==10))) && (input == 5))))) && (a8==15)) && ((140 < a29) && (245 >= a29)) )) [L557] COND FALSE !(((a3==1) && ( ((-43 < a23) && (138 >= a23)) && ((a8==15) && ((((((a25==10) || (a25==11)) || (a25==12)) && (input == 5)) && a29 <= 140 ) && !(a4==1)))))) [L563] COND FALSE !(( 306 < a23 && (((a3==1) && ( 277 < a29 && (((input == 4) && (((a25==9) || (a25==10)) || (a25==11))) && (a8==15)))) && (a4==1)))) [L568] COND FALSE !((!(a4==1) && ( a23 <= -43 && ((a8==15) && (((((a25==12) || ((a25==10) || (a25==11))) && (input == 1)) && (a3==1)) && 277 < a29 ))))) [L574] COND FALSE !(( 277 < a29 && (((a25==13) && ( a23 <= -43 && (!(a4==1) && ((input == 1) && (a3==1))))) && (a8==15)))) [L577] COND FALSE !(((( ((-43 < a23) && (138 >= a23)) && (((a25==9) && ((input == 4) && !(a4==1))) && a29 <= 140 )) && (a3==1)) && (a8==15))) [L583] COND FALSE !(((a8==15) && ((((a3==1) && (((((a25==10) || (a25==11)) || (a25==12)) && (input == 3)) && (a4==1))) && 306 < a23 ) && a29 <= 140 ))) [L588] COND FALSE !((( ((-43 < a23) && (138 >= a23)) && ((a3==1) && (!(a4==1) && ((input == 4) && (((a25==10) && ((140 < a29) && (245 >= a29)) ) || (((a25==13) && a29 <= 140 ) || ( ((140 < a29) && (245 >= a29)) && (a25==9)))))))) && (a8==15))) [L600] COND FALSE !(((((a8==15) && ((!(a4==1) && (((a25==11) || ((a25==9) || (a25==10))) && (input == 6))) && (a3==1))) && a23 <= -43 ) && ((140 < a29) && (245 >= a29)) )) [L605] COND FALSE !(( a29 <= 140 && (((a4==1) && ((a8==15) && (((input == 6) && (((a25==10) || (a25==11)) || (a25==12))) && 306 < a23 ))) && (a3==1)))) [L617] COND FALSE !(((((((a3==1) && ((input == 5) && ((a25==11) || (a25==12)))) && (a4==1)) && 306 < a23 ) && ((140 < a29) && (245 >= a29)) ) && (a8==15))) [L623] COND FALSE !(((((a4==1) && ( 306 < a23 && ((a8==15) && (((a25==11) || (a25==12)) && (input == 2))))) && ((140 < a29) && (245 >= a29)) ) && (a3==1))) [L630] COND FALSE !(((((a8==15) && ( a23 <= -43 && (!(a4==1) && ((a25==11) && (input == 5))))) && (a3==1)) && ((245 < a29) && (277 >= a29)) )) [L637] COND FALSE !((((((((input == 2) && ((a25==9) || (a25==10))) && (a8==15)) && ((140 < a29) && (245 >= a29)) ) && 306 < a23 ) && (a3==1)) && (a4==1))) [L644] COND FALSE !(((a8==15) && (((( 277 < a29 && ((input == 2) && ((a25==11) || ((a25==9) || (a25==10))))) && (a4==1)) && (a3==1)) && 306 < a23 ))) [L649] COND FALSE !(((((( ((-43 < a23) && (138 >= a23)) && ((input == 3) && ((a25==12) || ((a25==10) || (a25==11))))) && !(a4==1)) && (a8==15)) && a29 <= 140 ) && (a3==1))) [L660] COND FALSE !((((!(a4==1) && ((((input == 6) && ((a25==12) || ((a25==10) || (a25==11)))) && (a8==15)) && ((-43 < a23) && (138 >= a23)) )) && (a3==1)) && a29 <= 140 )) [L665] COND FALSE !(((a25==9) && (( a29 <= 140 && ((a3==1) && (!(a4==1) && ( ((-43 < a23) && (138 >= a23)) && (input == 2))))) && (a8==15)))) [L672] COND FALSE !((!(a4==1) && ( a23 <= -43 && (((a8==15) && (((((a25==12) && ((245 < a29) && (277 >= a29)) ) || ( ((245 < a29) && (277 >= a29)) && (a25==13))) || ((a25==9) && 277 < a29 )) && (input == 3))) && (a3==1))))) [L677] COND TRUE (((!(a4==1) && ((a3==1) && ((input == 5) && ((( ((245 < a29) && (277 >= a29)) && (a25==12)) || ((a25==13) && ((245 < a29) && (277 >= a29)) )) || ((a25==9) && 277 < a29 ))))) && a23 <= -43 ) && (a8==15)) [L678] a29 = (((((a29 / 5) % 52)- -147) - 494611) + 494614) [L679] a4 = 1 [L680] a25 = 13 [L682] return -1; [L1044] RET, EXPR calculate_output(input) [L1044] output = calculate_output(input) [L1036] COND TRUE 1 [L1039] int input; [L1040] input = __VERIFIER_nondet_int() [L1041] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L1044] CALL calculate_output(input) [L25] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==10)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L28] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L31] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==9)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L34] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==10)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L37] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==9)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L40] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L43] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==13)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L46] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==11)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L49] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==10)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L52] COND TRUE ((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && a23 <= -43 ) && (a8==15)) [L53] CALL reach_error() [L4] __assert_fail("0", "Problem11_label08.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 296 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 92.1s, OverallIterations: 16, TraceHistogramMax: 3, AutomataDifference: 57.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 727 SDtfs, 10176 SDslu, 1322 SDs, 0 SdLazy, 22837 SolverSat, 3205 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 39.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 246 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21047occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.6s AutomataMinimizationTime, 15 MinimizatonAttempts, 1908 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 28.4s InterpolantComputationTime, 3377 NumberOfCodeBlocks, 3377 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3070 ConstructedInterpolants, 0 QuantifiedInterpolants, 2015094 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 2 PerfectInterpolantSequences, 1110/1361 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...