/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/Problem18_label58.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 00:36:23,413 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 00:36:23,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 00:36:23,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 00:36:23,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 00:36:23,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 00:36:23,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 00:36:23,461 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 00:36:23,463 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 00:36:23,465 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 00:36:23,466 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 00:36:23,468 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 00:36:23,468 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 00:36:23,469 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 00:36:23,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 00:36:23,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 00:36:23,474 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 00:36:23,475 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 00:36:23,477 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 00:36:23,480 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 00:36:23,486 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 00:36:23,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 00:36:23,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 00:36:23,496 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 00:36:23,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 00:36:23,502 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 00:36:23,502 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 00:36:23,507 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 00:36:23,508 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 00:36:23,510 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 00:36:23,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 00:36:23,512 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 00:36:23,513 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 00:36:23,515 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 00:36:23,528 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 00:36:23,535 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 00:36:23,536 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 00:36:23,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 00:36:23,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 00:36:23,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 00:36:23,540 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 00:36:23,541 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 00:36:23,603 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 00:36:23,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 00:36:23,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 00:36:23,610 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 00:36:23,610 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 00:36:23,611 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 00:36:23,611 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 00:36:23,611 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 00:36:23,612 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 00:36:23,612 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 00:36:23,613 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 00:36:23,613 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 00:36:23,614 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 00:36:23,614 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 00:36:23,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 00:36:23,614 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 00:36:23,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 00:36:23,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 00:36:23,616 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 00:36:23,616 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 00:36:23,616 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 00:36:23,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 00:36:23,617 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 00:36:23,617 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 00:36:23,617 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 00:36:23,617 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 00:36:23,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 00:36:23,618 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 00:36:23,618 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 00:36:23,618 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 00:36:24,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 00:36:24,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 00:36:24,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 00:36:24,135 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 00:36:24,138 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 00:36:24,139 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label58.c [2020-10-27 00:36:24,229 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f9e119f9/9a61f633c6cf416d875229be1e11fd63/FLAGb05896063 [2020-10-27 00:36:25,209 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 00:36:25,210 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label58.c [2020-10-27 00:36:25,244 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f9e119f9/9a61f633c6cf416d875229be1e11fd63/FLAGb05896063 [2020-10-27 00:36:25,700 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f9e119f9/9a61f633c6cf416d875229be1e11fd63 [2020-10-27 00:36:25,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 00:36:25,710 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 00:36:25,712 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 00:36:25,712 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 00:36:25,716 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 00:36:25,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:36:25" (1/1) ... [2020-10-27 00:36:25,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e4918ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:36:25, skipping insertion in model container [2020-10-27 00:36:25,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:36:25" (1/1) ... [2020-10-27 00:36:25,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 00:36:25,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 00:36:27,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 00:36:27,210 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 00:36:27,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 00:36:27,948 INFO L208 MainTranslator]: Completed translation [2020-10-27 00:36:27,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:36:27 WrapperNode [2020-10-27 00:36:27,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 00:36:27,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 00:36:27,951 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 00:36:27,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 00:36:27,966 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:36:27" (1/1) ... [2020-10-27 00:36:27,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:36:27" (1/1) ... [2020-10-27 00:36:28,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:36:27" (1/1) ... [2020-10-27 00:36:28,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:36:27" (1/1) ... [2020-10-27 00:36:28,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:36:27" (1/1) ... [2020-10-27 00:36:28,205 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:36:27" (1/1) ... [2020-10-27 00:36:28,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:36:27" (1/1) ... [2020-10-27 00:36:28,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 00:36:28,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 00:36:28,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 00:36:28,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 00:36:28,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:36:27" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 00:36:28,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 00:36:28,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 00:36:28,346 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 00:36:28,346 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-27 00:36:28,347 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-27 00:36:28,348 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-27 00:36:28,348 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 00:36:28,348 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-27 00:36:28,348 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-27 00:36:28,349 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-27 00:36:28,350 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 00:36:28,350 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 00:36:28,350 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 00:36:28,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 00:36:28,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 00:36:28,351 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 00:36:28,351 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 00:36:28,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 00:36:28,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 00:36:28,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 00:36:28,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 00:36:28,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 00:36:28,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 00:36:32,938 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 00:36:32,938 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 00:36:32,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:36:32 BoogieIcfgContainer [2020-10-27 00:36:32,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 00:36:32,947 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 00:36:32,948 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 00:36:32,954 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 00:36:32,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:36:25" (1/3) ... [2020-10-27 00:36:32,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b9b842d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:36:32, skipping insertion in model container [2020-10-27 00:36:32,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:36:27" (2/3) ... [2020-10-27 00:36:32,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b9b842d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:36:32, skipping insertion in model container [2020-10-27 00:36:32,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:36:32" (3/3) ... [2020-10-27 00:36:32,958 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem18_label58.c [2020-10-27 00:36:32,971 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 00:36:32,977 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 00:36:32,991 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 00:36:33,025 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 00:36:33,025 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 00:36:33,025 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 00:36:33,025 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 00:36:33,025 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 00:36:33,025 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 00:36:33,026 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 00:36:33,026 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 00:36:33,067 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states. [2020-10-27 00:36:33,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-27 00:36:33,077 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:36:33,078 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:36:33,078 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:36:33,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:36:33,085 INFO L82 PathProgramCache]: Analyzing trace with hash -1974208840, now seen corresponding path program 1 times [2020-10-27 00:36:33,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:36:33,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [73077184] [2020-10-27 00:36:33,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:36:33,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:36:33,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:36:33,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:36:33,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 00:36:33,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:36:33,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 564 [2020-10-27 00:36:33,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:36:33,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 00:36:33,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 00:36:33,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-27 00:36:33,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 00:36:33,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:36:34,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:36:34,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:36:34,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:36:34,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:36:34,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:36:34,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-27 00:36:34,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:36:34,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:36:34,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:36:34,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 00:36:34,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:36:34,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 00:36:34,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [73077184] [2020-10-27 00:36:34,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 00:36:34,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-27 00:36:34,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78879365] [2020-10-27 00:36:34,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 00:36:34,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:36:34,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 00:36:34,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 00:36:34,112 INFO L87 Difference]: Start difference. First operand 778 states. Second operand 4 states. [2020-10-27 00:36:43,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:36:43,137 INFO L93 Difference]: Finished difference Result 2275 states and 4355 transitions. [2020-10-27 00:36:43,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 00:36:43,139 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-10-27 00:36:43,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:36:43,177 INFO L225 Difference]: With dead ends: 2275 [2020-10-27 00:36:43,177 INFO L226 Difference]: Without dead ends: 1433 [2020-10-27 00:36:43,186 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 00:36:43,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1433 states. [2020-10-27 00:36:43,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1433 to 1426. [2020-10-27 00:36:43,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1426 states. [2020-10-27 00:36:43,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2230 transitions. [2020-10-27 00:36:43,358 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2230 transitions. Word has length 47 [2020-10-27 00:36:43,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:36:43,359 INFO L481 AbstractCegarLoop]: Abstraction has 1426 states and 2230 transitions. [2020-10-27 00:36:43,359 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 00:36:43,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2230 transitions. [2020-10-27 00:36:43,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-27 00:36:43,365 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:36:43,366 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:36:43,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 00:36:43,366 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:36:43,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:36:43,367 INFO L82 PathProgramCache]: Analyzing trace with hash 918546129, now seen corresponding path program 1 times [2020-10-27 00:36:43,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:36:43,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1765209184] [2020-10-27 00:36:43,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:36:43,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:36:43,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:36:43,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:36:44,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:36:44,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 00:36:44,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 00:36:44,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1089 [2020-10-27 00:36:44,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:36:44,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 00:36:44,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 00:36:44,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-27 00:36:44,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 00:36:44,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:36:44,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:36:44,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:36:44,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:36:44,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:36:44,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:36:44,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 00:36:44,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:36:44,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:36:44,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:36:44,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 00:36:44,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 00:36:44,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:36:44,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:36:44,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:36:44,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:36:44,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-27 00:36:44,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:36:44,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-27 00:36:44,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:36:44,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:36:44,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:36:44,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 00:36:44,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:36:44,943 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 00:36:44,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1765209184] [2020-10-27 00:36:44,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 00:36:44,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 00:36:44,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856732621] [2020-10-27 00:36:44,947 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 00:36:44,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:36:44,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 00:36:44,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 00:36:44,951 INFO L87 Difference]: Start difference. First operand 1426 states and 2230 transitions. Second operand 7 states. [2020-10-27 00:36:56,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:36:56,806 INFO L93 Difference]: Finished difference Result 4341 states and 6843 transitions. [2020-10-27 00:36:56,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 00:36:56,807 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 117 [2020-10-27 00:36:56,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:36:56,830 INFO L225 Difference]: With dead ends: 4341 [2020-10-27 00:36:56,830 INFO L226 Difference]: Without dead ends: 2921 [2020-10-27 00:36:56,835 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-27 00:36:56,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2921 states. [2020-10-27 00:36:56,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2921 to 2877. [2020-10-27 00:36:56,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2877 states. [2020-10-27 00:36:56,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2877 states to 2877 states and 3976 transitions. [2020-10-27 00:36:56,971 INFO L78 Accepts]: Start accepts. Automaton has 2877 states and 3976 transitions. Word has length 117 [2020-10-27 00:36:56,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:36:56,974 INFO L481 AbstractCegarLoop]: Abstraction has 2877 states and 3976 transitions. [2020-10-27 00:36:56,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 00:36:56,974 INFO L276 IsEmpty]: Start isEmpty. Operand 2877 states and 3976 transitions. [2020-10-27 00:36:56,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-10-27 00:36:56,989 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:36:56,990 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:36:56,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 00:36:56,990 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:36:56,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:36:56,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1439829965, now seen corresponding path program 1 times [2020-10-27 00:36:56,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:36:56,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [579725894] [2020-10-27 00:36:56,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:36:57,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:36:57,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:36:57,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:36:58,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:36:58,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-27 00:36:58,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 00:36:58,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1379 [2020-10-27 00:36:58,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:36:58,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 00:36:58,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 00:36:58,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-27 00:36:58,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:36:58,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:36:58,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:36:58,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:36:58,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:36:58,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:36:58,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:36:58,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 00:36:58,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:36:58,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:36:58,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:36:58,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 00:36:58,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:36:58,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:36:58,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:36:58,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:36:58,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:36:58,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-27 00:36:58,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:36:58,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-27 00:36:58,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:36:58,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:36:58,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:36:58,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-27 00:36:58,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:36:59,046 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 00:36:59,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [579725894] [2020-10-27 00:36:59,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 00:36:59,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 00:36:59,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344252778] [2020-10-27 00:36:59,050 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 00:36:59,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:36:59,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 00:36:59,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 00:36:59,053 INFO L87 Difference]: Start difference. First operand 2877 states and 3976 transitions. Second operand 7 states. [2020-10-27 00:36:59,188 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-27 00:37:10,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:37:10,305 INFO L93 Difference]: Finished difference Result 8756 states and 12282 transitions. [2020-10-27 00:37:10,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 00:37:10,306 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 179 [2020-10-27 00:37:10,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:37:10,349 INFO L225 Difference]: With dead ends: 8756 [2020-10-27 00:37:10,349 INFO L226 Difference]: Without dead ends: 5885 [2020-10-27 00:37:10,359 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-27 00:37:10,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5885 states. [2020-10-27 00:37:10,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5885 to 5824. [2020-10-27 00:37:10,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5824 states. [2020-10-27 00:37:10,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5824 states to 5824 states and 7262 transitions. [2020-10-27 00:37:10,589 INFO L78 Accepts]: Start accepts. Automaton has 5824 states and 7262 transitions. Word has length 179 [2020-10-27 00:37:10,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:37:10,591 INFO L481 AbstractCegarLoop]: Abstraction has 5824 states and 7262 transitions. [2020-10-27 00:37:10,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 00:37:10,591 INFO L276 IsEmpty]: Start isEmpty. Operand 5824 states and 7262 transitions. [2020-10-27 00:37:10,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-10-27 00:37:10,598 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:37:10,598 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:37:10,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 00:37:10,599 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:37:10,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:37:10,603 INFO L82 PathProgramCache]: Analyzing trace with hash 905188576, now seen corresponding path program 1 times [2020-10-27 00:37:10,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:37:10,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1520887828] [2020-10-27 00:37:10,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:37:10,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:37:10,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:10,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:11,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:13,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:37:13,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 256 [2020-10-27 00:37:13,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 00:37:13,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3028 [2020-10-27 00:37:13,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:37:13,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 00:37:13,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 00:37:13,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-27 00:37:13,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:37:13,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:37:13,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:37:13,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:13,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:37:13,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:37:13,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:37:13,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 00:37:13,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:37:13,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:37:13,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:37:13,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 00:37:13,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:37:13,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:37:13,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:37:13,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:14,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:37:14,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-27 00:37:14,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:37:14,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-27 00:37:14,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:37:14,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:37:14,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:37:14,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-27 00:37:14,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:37:14,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 00:37:14,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:37:14,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:14,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:37:14,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-27 00:37:14,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:37:14,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-27 00:37:14,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:37:14,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:37:14,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-27 00:37:14,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:37:14,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:37:14,726 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 78 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-27 00:37:14,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1520887828] [2020-10-27 00:37:14,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 00:37:14,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 00:37:14,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868338858] [2020-10-27 00:37:14,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 00:37:14,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:37:14,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 00:37:14,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 00:37:14,740 INFO L87 Difference]: Start difference. First operand 5824 states and 7262 transitions. Second operand 7 states. [2020-10-27 00:37:25,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:37:25,292 INFO L93 Difference]: Finished difference Result 12508 states and 15479 transitions. [2020-10-27 00:37:25,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 00:37:25,299 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 242 [2020-10-27 00:37:25,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:37:25,333 INFO L225 Difference]: With dead ends: 12508 [2020-10-27 00:37:25,334 INFO L226 Difference]: Without dead ends: 6690 [2020-10-27 00:37:25,346 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-27 00:37:25,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6690 states. [2020-10-27 00:37:25,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6690 to 6586. [2020-10-27 00:37:25,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6586 states. [2020-10-27 00:37:25,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6586 states to 6586 states and 8057 transitions. [2020-10-27 00:37:25,556 INFO L78 Accepts]: Start accepts. Automaton has 6586 states and 8057 transitions. Word has length 242 [2020-10-27 00:37:25,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:37:25,558 INFO L481 AbstractCegarLoop]: Abstraction has 6586 states and 8057 transitions. [2020-10-27 00:37:25,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 00:37:25,558 INFO L276 IsEmpty]: Start isEmpty. Operand 6586 states and 8057 transitions. [2020-10-27 00:37:25,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2020-10-27 00:37:25,567 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:37:25,567 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:37:25,568 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 00:37:25,568 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:37:25,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:37:25,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1219702079, now seen corresponding path program 1 times [2020-10-27 00:37:25,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:37:25,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1048577006] [2020-10-27 00:37:25,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:37:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:37:25,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:25,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:25,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:28,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:30,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:37:30,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 444 [2020-10-27 00:37:30,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 00:37:30,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-27 00:37:30,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:37:30,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:37:30,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-27 00:37:30,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-27 00:37:30,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:37:30,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:37:30,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:37:30,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:30,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:37:30,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:37:30,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:37:30,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 00:37:30,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:37:30,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:37:30,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:37:30,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:37:30,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:37:30,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:37:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:37:30,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:31,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:37:31,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-27 00:37:31,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:37:31,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-27 00:37:31,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:37:31,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:37:31,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:37:31,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-27 00:37:31,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 00:37:31,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-27 00:37:31,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:37:31,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:31,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:37:31,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-27 00:37:31,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:37:31,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-27 00:37:31,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:37:31,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:37:31,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:37:31,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-27 00:37:31,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 00:37:31,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-10-27 00:37:31,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:37:31,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:31,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:37:31,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-27 00:37:31,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:37:31,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-27 00:37:31,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:37:31,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:37:31,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-27 00:37:31,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:37:31,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:37:31,735 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 240 proven. 72 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-27 00:37:31,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1048577006] [2020-10-27 00:37:31,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 00:37:31,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 00:37:31,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211993730] [2020-10-27 00:37:31,737 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 00:37:31,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:37:31,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 00:37:31,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 00:37:31,739 INFO L87 Difference]: Start difference. First operand 6586 states and 8057 transitions. Second operand 7 states. [2020-10-27 00:37:44,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:37:44,958 INFO L93 Difference]: Finished difference Result 15637 states and 19905 transitions. [2020-10-27 00:37:44,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 00:37:44,959 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 428 [2020-10-27 00:37:44,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:37:44,998 INFO L225 Difference]: With dead ends: 15637 [2020-10-27 00:37:44,999 INFO L226 Difference]: Without dead ends: 8203 [2020-10-27 00:37:45,014 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-27 00:37:45,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8203 states. [2020-10-27 00:37:45,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8203 to 8047. [2020-10-27 00:37:45,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8047 states. [2020-10-27 00:37:45,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8047 states to 8047 states and 8889 transitions. [2020-10-27 00:37:45,200 INFO L78 Accepts]: Start accepts. Automaton has 8047 states and 8889 transitions. Word has length 428 [2020-10-27 00:37:45,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:37:45,201 INFO L481 AbstractCegarLoop]: Abstraction has 8047 states and 8889 transitions. [2020-10-27 00:37:45,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 00:37:45,201 INFO L276 IsEmpty]: Start isEmpty. Operand 8047 states and 8889 transitions. [2020-10-27 00:37:45,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 890 [2020-10-27 00:37:45,231 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:37:45,233 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:37:45,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 00:37:45,233 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:37:45,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:37:45,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1715501084, now seen corresponding path program 1 times [2020-10-27 00:37:45,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:37:45,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2048870737] [2020-10-27 00:37:45,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:37:45,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:37:45,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:45,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:46,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:50,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:37:50,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 911 [2020-10-27 00:37:50,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 00:37:50,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5094 [2020-10-27 00:37:50,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:37:50,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 00:37:50,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 00:37:50,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 661 [2020-10-27 00:37:50,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:37:50,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:37:50,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:37:50,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:50,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:37:50,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:37:50,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:37:50,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 00:37:50,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:37:50,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:37:50,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:37:50,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 00:37:50,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:37:50,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:37:50,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:37:51,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:52,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:37:52,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-27 00:37:52,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:37:52,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1288 [2020-10-27 00:37:52,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:37:52,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 00:37:52,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:37:52,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 532 [2020-10-27 00:37:52,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:37:52,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:37:52,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:37:52,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:52,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:37:52,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-27 00:37:52,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:37:52,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 313 [2020-10-27 00:37:52,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:37:52,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 00:37:52,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:37:52,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-27 00:37:52,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:37:52,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-27 00:37:52,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:37:52,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:52,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:37:52,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 00:37:52,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:37:52,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 00:37:52,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:37:52,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:37:52,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:37:52,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 00:37:52,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:37:53,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-27 00:37:53,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:37:53,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:53,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:37:53,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-27 00:37:53,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:37:53,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-27 00:37:53,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:37:53,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:37:53,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:37:53,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-27 00:37:53,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:37:54,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 657 [2020-10-27 00:37:54,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:37:54,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:54,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:37:54,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-27 00:37:54,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:37:54,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-27 00:37:54,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:37:54,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:37:54,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-27 00:37:54,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:37:54,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:37:54,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 764 [2020-10-27 00:37:54,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:37:54,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:54,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:37:54,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 00:37:54,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:37:54,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 00:37:54,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:37:54,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:37:54,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-27 00:37:54,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:37:54,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 00:37:55,531 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 165 proven. 483 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2020-10-27 00:37:55,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2048870737] [2020-10-27 00:37:55,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 00:37:55,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 00:37:55,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567746741] [2020-10-27 00:37:55,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 00:37:55,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:37:55,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 00:37:55,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-27 00:37:55,536 INFO L87 Difference]: Start difference. First operand 8047 states and 8889 transitions. Second operand 8 states. [2020-10-27 00:38:02,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:38:02,916 INFO L93 Difference]: Finished difference Result 16191 states and 17901 transitions. [2020-10-27 00:38:02,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 00:38:02,918 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 889 [2020-10-27 00:38:02,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:38:02,948 INFO L225 Difference]: With dead ends: 16191 [2020-10-27 00:38:02,948 INFO L226 Difference]: Without dead ends: 8852 [2020-10-27 00:38:02,964 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-10-27 00:38:02,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8852 states. [2020-10-27 00:38:03,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8852 to 8771. [2020-10-27 00:38:03,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8771 states. [2020-10-27 00:38:03,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8771 states to 8771 states and 9615 transitions. [2020-10-27 00:38:03,144 INFO L78 Accepts]: Start accepts. Automaton has 8771 states and 9615 transitions. Word has length 889 [2020-10-27 00:38:03,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:38:03,146 INFO L481 AbstractCegarLoop]: Abstraction has 8771 states and 9615 transitions. [2020-10-27 00:38:03,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 00:38:03,146 INFO L276 IsEmpty]: Start isEmpty. Operand 8771 states and 9615 transitions. [2020-10-27 00:38:03,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 972 [2020-10-27 00:38:03,188 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:38:03,190 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:38:03,190 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 00:38:03,190 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:38:03,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:38:03,191 INFO L82 PathProgramCache]: Analyzing trace with hash 270526183, now seen corresponding path program 1 times [2020-10-27 00:38:03,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:38:03,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1887578520] [2020-10-27 00:38:03,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:38:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:03,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:03,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:07,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:07,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 993 [2020-10-27 00:38:07,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 00:38:07,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4560 [2020-10-27 00:38:07,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:07,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:38:07,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-27 00:38:07,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-27 00:38:07,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:08,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:38:08,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:08,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:08,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:08,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:38:08,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:08,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 00:38:08,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:08,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:38:08,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:38:08,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:38:08,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:08,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:38:08,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:08,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:08,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:08,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-27 00:38:08,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:08,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-27 00:38:08,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:08,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:38:08,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:38:08,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:38:08,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:08,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:38:08,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:08,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:08,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:08,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-27 00:38:08,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:08,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-27 00:38:08,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:08,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:38:08,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:38:08,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:38:08,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:08,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-27 00:38:08,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:08,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:08,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:08,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 00:38:08,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:08,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 00:38:08,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:08,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:38:08,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:38:08,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:38:08,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:08,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-27 00:38:08,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:08,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:09,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:09,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-27 00:38:09,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:09,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 325 [2020-10-27 00:38:09,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:09,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:38:09,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:38:09,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-27 00:38:09,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:09,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:38:09,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:09,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:09,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:09,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 00:38:09,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:09,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 00:38:09,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:09,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:38:09,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:38:09,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 00:38:09,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:09,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-27 00:38:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:09,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:09,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:09,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 00:38:09,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:09,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-27 00:38:09,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:09,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:38:09,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:38:09,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-27 00:38:09,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:09,950 INFO L134 CoverageAnalysis]: Checked inductivity of 604 backedges. 299 proven. 2 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2020-10-27 00:38:09,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1887578520] [2020-10-27 00:38:09,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 00:38:09,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 00:38:09,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116727190] [2020-10-27 00:38:09,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 00:38:09,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:38:09,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 00:38:09,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 00:38:09,953 INFO L87 Difference]: Start difference. First operand 8771 states and 9615 transitions. Second operand 7 states. [2020-10-27 00:38:18,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:38:18,479 INFO L93 Difference]: Finished difference Result 19946 states and 22545 transitions. [2020-10-27 00:38:18,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 00:38:18,480 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 971 [2020-10-27 00:38:18,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:38:18,534 INFO L225 Difference]: With dead ends: 19946 [2020-10-27 00:38:18,534 INFO L226 Difference]: Without dead ends: 12593 [2020-10-27 00:38:18,553 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-27 00:38:18,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12593 states. [2020-10-27 00:38:18,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12593 to 12488. [2020-10-27 00:38:18,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12488 states. [2020-10-27 00:38:18,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12488 states to 12488 states and 13901 transitions. [2020-10-27 00:38:18,811 INFO L78 Accepts]: Start accepts. Automaton has 12488 states and 13901 transitions. Word has length 971 [2020-10-27 00:38:18,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:38:18,813 INFO L481 AbstractCegarLoop]: Abstraction has 12488 states and 13901 transitions. [2020-10-27 00:38:18,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 00:38:18,813 INFO L276 IsEmpty]: Start isEmpty. Operand 12488 states and 13901 transitions. [2020-10-27 00:38:18,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1069 [2020-10-27 00:38:18,828 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:38:18,831 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:38:18,832 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 00:38:18,832 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:38:18,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:38:18,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1679048218, now seen corresponding path program 1 times [2020-10-27 00:38:18,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:38:18,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [507850671] [2020-10-27 00:38:18,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:38:18,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:19,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:19,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:20,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:24,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:24,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1092 [2020-10-27 00:38:24,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 00:38:24,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5110 [2020-10-27 00:38:24,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:24,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:38:24,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-27 00:38:24,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-27 00:38:24,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:24,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:38:24,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:24,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:24,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:24,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:38:24,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:24,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 00:38:24,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:24,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:38:24,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:38:24,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:38:24,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:24,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:38:24,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:24,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:24,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:24,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-27 00:38:24,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:24,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-27 00:38:24,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:24,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:38:24,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:38:24,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:38:24,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:24,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:38:24,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:24,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:24,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:24,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-27 00:38:24,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:24,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-27 00:38:24,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:24,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:38:24,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:38:24,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:38:24,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:24,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-27 00:38:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:24,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:24,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:24,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 00:38:24,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:24,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 00:38:24,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:24,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:38:24,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:38:24,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:38:24,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:25,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-27 00:38:25,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:25,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:25,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:25,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-27 00:38:25,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:25,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-27 00:38:25,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:25,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:38:25,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:38:25,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-27 00:38:25,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:25,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:38:25,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:25,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:25,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:25,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 00:38:25,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:25,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 00:38:25,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:25,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:38:25,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:38:25,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 00:38:25,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:25,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-27 00:38:25,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:25,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:25,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:25,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-27 00:38:25,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:25,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-27 00:38:25,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:25,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:38:25,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:38:25,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-27 00:38:25,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:25,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 918 [2020-10-27 00:38:25,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:25,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:25,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:25,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-27 00:38:25,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:25,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 00:38:25,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:25,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:38:25,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 109 [2020-10-27 00:38:25,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:38:25,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:26,263 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 318 proven. 75 refuted. 0 times theorem prover too weak. 520 trivial. 0 not checked. [2020-10-27 00:38:26,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [507850671] [2020-10-27 00:38:26,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 00:38:26,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 00:38:26,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137706512] [2020-10-27 00:38:26,265 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 00:38:26,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:38:26,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 00:38:26,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 00:38:26,266 INFO L87 Difference]: Start difference. First operand 12488 states and 13901 transitions. Second operand 7 states. [2020-10-27 00:38:35,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:38:35,049 INFO L93 Difference]: Finished difference Result 34512 states and 39605 transitions. [2020-10-27 00:38:35,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 00:38:35,050 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1068 [2020-10-27 00:38:35,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:38:35,126 INFO L225 Difference]: With dead ends: 34512 [2020-10-27 00:38:35,126 INFO L226 Difference]: Without dead ends: 23442 [2020-10-27 00:38:35,153 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-27 00:38:35,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23442 states. [2020-10-27 00:38:35,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23442 to 23363. [2020-10-27 00:38:35,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23363 states. [2020-10-27 00:38:35,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23363 states to 23363 states and 26557 transitions. [2020-10-27 00:38:35,651 INFO L78 Accepts]: Start accepts. Automaton has 23363 states and 26557 transitions. Word has length 1068 [2020-10-27 00:38:35,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:38:35,653 INFO L481 AbstractCegarLoop]: Abstraction has 23363 states and 26557 transitions. [2020-10-27 00:38:35,653 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 00:38:35,653 INFO L276 IsEmpty]: Start isEmpty. Operand 23363 states and 26557 transitions. [2020-10-27 00:38:35,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1136 [2020-10-27 00:38:35,673 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:38:35,674 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:38:35,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 00:38:35,674 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:38:35,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:38:35,675 INFO L82 PathProgramCache]: Analyzing trace with hash 315833286, now seen corresponding path program 1 times [2020-10-27 00:38:35,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:38:35,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [702558316] [2020-10-27 00:38:35,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:38:35,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:36,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:37,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:37,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1159 [2020-10-27 00:38:37,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:37,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1633 [2020-10-27 00:38:37,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:37,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:38:37,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1110 [2020-10-27 00:38:37,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-27 00:38:37,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:37,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:38:37,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:37,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:37,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:37,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:38:37,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:37,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 00:38:37,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:37,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:38:37,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:38:37,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:38:37,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:37,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:38:37,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:37,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:38,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:38,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-27 00:38:38,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:38,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-10-27 00:38:38,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:38,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:38:38,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:38:38,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:38:38,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:38,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:38:38,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:38,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:38,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:38,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-27 00:38:38,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:38,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-27 00:38:38,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:38,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:38:38,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:38:38,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:38:38,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 00:38:38,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-27 00:38:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:38,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:38,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:38,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 00:38:38,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:38,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 00:38:38,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:38,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:38:38,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:38:38,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:38:38,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:38,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-27 00:38:38,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:38,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:38,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:38,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-27 00:38:38,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:38,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-27 00:38:38,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:38,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:38:38,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:38:38,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:38:38,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:38,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:38:38,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:38,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:38,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:38,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 00:38:38,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:38,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 00:38:38,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:38,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:38:38,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:38:38,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:38:38,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:38,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-27 00:38:38,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:38,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:38,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:38,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-27 00:38:38,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:38,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-27 00:38:38,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:38,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:38:38,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:38:38,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:38:38,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:38,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-27 00:38:38,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:38,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:39,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:39,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-27 00:38:39,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:39,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-27 00:38:39,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:39,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:38:39,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:38:39,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-27 00:38:39,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:39,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1082 backedges. 161 proven. 4 refuted. 0 times theorem prover too weak. 917 trivial. 0 not checked. [2020-10-27 00:38:39,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [702558316] [2020-10-27 00:38:39,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 00:38:39,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 00:38:39,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703066267] [2020-10-27 00:38:39,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 00:38:39,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:38:39,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 00:38:39,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 00:38:39,771 INFO L87 Difference]: Start difference. First operand 23363 states and 26557 transitions. Second operand 5 states. [2020-10-27 00:38:49,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:38:49,246 INFO L93 Difference]: Finished difference Result 55260 states and 63849 transitions. [2020-10-27 00:38:49,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 00:38:49,247 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1135 [2020-10-27 00:38:49,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:38:49,360 INFO L225 Difference]: With dead ends: 55260 [2020-10-27 00:38:49,360 INFO L226 Difference]: Without dead ends: 32605 [2020-10-27 00:38:49,405 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 00:38:49,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32605 states. [2020-10-27 00:38:49,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32605 to 31891. [2020-10-27 00:38:49,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31891 states. [2020-10-27 00:38:50,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31891 states to 31891 states and 36088 transitions. [2020-10-27 00:38:50,027 INFO L78 Accepts]: Start accepts. Automaton has 31891 states and 36088 transitions. Word has length 1135 [2020-10-27 00:38:50,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:38:50,030 INFO L481 AbstractCegarLoop]: Abstraction has 31891 states and 36088 transitions. [2020-10-27 00:38:50,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 00:38:50,030 INFO L276 IsEmpty]: Start isEmpty. Operand 31891 states and 36088 transitions. [2020-10-27 00:38:50,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1227 [2020-10-27 00:38:50,053 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:38:50,056 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:38:50,056 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 00:38:50,056 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:38:50,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:38:50,057 INFO L82 PathProgramCache]: Analyzing trace with hash -648574690, now seen corresponding path program 1 times [2020-10-27 00:38:50,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:38:50,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [860681410] [2020-10-27 00:38:50,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:38:50,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:50,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:50,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:51,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:55,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:55,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1250 [2020-10-27 00:38:55,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 00:38:55,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5076 [2020-10-27 00:38:55,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:55,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:38:55,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-27 00:38:55,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-27 00:38:55,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:55,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:38:55,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:55,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:55,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:55,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:38:55,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:55,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 00:38:55,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:55,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:38:55,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:38:55,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:38:55,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:55,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:38:55,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:55,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:55,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:55,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-27 00:38:55,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:55,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-27 00:38:55,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:55,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:38:55,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:38:55,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:38:55,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:55,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:38:55,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:55,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:55,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:55,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-27 00:38:55,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:55,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-27 00:38:55,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:55,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:38:55,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:38:55,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:38:55,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:55,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-27 00:38:55,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:55,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:55,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:55,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 00:38:55,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:55,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 00:38:55,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:55,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:38:55,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:38:55,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:38:55,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:56,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-27 00:38:56,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:56,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:56,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:56,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-27 00:38:56,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:56,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-10-27 00:38:56,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:56,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:38:56,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:38:56,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-27 00:38:56,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:56,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:38:56,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:56,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:56,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:56,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 00:38:56,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:56,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 00:38:56,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:56,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:38:56,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:38:56,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 00:38:56,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:56,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-27 00:38:56,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:56,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:56,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:56,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-27 00:38:56,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:56,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-27 00:38:56,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:56,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:38:56,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:38:56,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-27 00:38:56,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:56,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-27 00:38:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:56,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:56,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:56,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-27 00:38:56,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:56,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-27 00:38:56,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:56,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:38:56,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 221 [2020-10-27 00:38:56,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:38:56,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:57,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 410 proven. 121 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2020-10-27 00:38:57,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [860681410] [2020-10-27 00:38:57,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 00:38:57,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 00:38:57,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251216656] [2020-10-27 00:38:57,753 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 00:38:57,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:38:57,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 00:38:57,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 00:38:57,754 INFO L87 Difference]: Start difference. First operand 31891 states and 36088 transitions. Second operand 7 states. [2020-10-27 00:39:12,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:39:12,474 INFO L93 Difference]: Finished difference Result 73860 states and 83933 transitions. [2020-10-27 00:39:12,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 00:39:12,476 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1226 [2020-10-27 00:39:12,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:39:12,600 INFO L225 Difference]: With dead ends: 73860 [2020-10-27 00:39:12,601 INFO L226 Difference]: Without dead ends: 42685 [2020-10-27 00:39:12,656 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-27 00:39:12,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42685 states. [2020-10-27 00:39:13,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42685 to 41884. [2020-10-27 00:39:13,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41884 states. [2020-10-27 00:39:13,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41884 states to 41884 states and 46981 transitions. [2020-10-27 00:39:13,717 INFO L78 Accepts]: Start accepts. Automaton has 41884 states and 46981 transitions. Word has length 1226 [2020-10-27 00:39:13,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:39:13,718 INFO L481 AbstractCegarLoop]: Abstraction has 41884 states and 46981 transitions. [2020-10-27 00:39:13,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 00:39:13,718 INFO L276 IsEmpty]: Start isEmpty. Operand 41884 states and 46981 transitions. [2020-10-27 00:39:13,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1295 [2020-10-27 00:39:13,744 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:39:13,745 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:39:13,745 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 00:39:13,745 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:39:13,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:39:13,746 INFO L82 PathProgramCache]: Analyzing trace with hash -2138101240, now seen corresponding path program 1 times [2020-10-27 00:39:13,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:39:13,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [43441756] [2020-10-27 00:39:13,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:39:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:14,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:15,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:15,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1318 [2020-10-27 00:39:15,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:15,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1674 [2020-10-27 00:39:15,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:15,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:39:15,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1269 [2020-10-27 00:39:15,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-27 00:39:15,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:15,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:39:15,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:15,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:15,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:15,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:39:15,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:15,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 00:39:15,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:15,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:15,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:15,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:15,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:15,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:39:15,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:15,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:16,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:16,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-27 00:39:16,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:16,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-10-27 00:39:16,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:16,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:16,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:16,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:16,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:16,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:39:16,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:16,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:16,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:16,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-27 00:39:16,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:16,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-27 00:39:16,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:16,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:16,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:16,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:16,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:16,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-27 00:39:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:16,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:16,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:16,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 00:39:16,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:16,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 00:39:16,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:16,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:16,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:16,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:16,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:16,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-27 00:39:16,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:16,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:16,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:16,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-27 00:39:16,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:16,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-27 00:39:16,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:16,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:16,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:16,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:16,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:16,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:39:16,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:16,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:16,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:16,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 00:39:16,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:16,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 00:39:16,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:16,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:16,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:16,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:16,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:16,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-27 00:39:16,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:16,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:16,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:16,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-27 00:39:16,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:16,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 00:39:16,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:16,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:16,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:16,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:16,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:16,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-27 00:39:16,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:16,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:17,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:17,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-10-27 00:39:17,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:17,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 269 [2020-10-27 00:39:17,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:17,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:39:17,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:17,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-27 00:39:17,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:17,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 161 proven. 4 refuted. 0 times theorem prover too weak. 1267 trivial. 0 not checked. [2020-10-27 00:39:17,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [43441756] [2020-10-27 00:39:17,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 00:39:17,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 00:39:17,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587286843] [2020-10-27 00:39:17,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 00:39:17,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:39:17,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 00:39:17,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 00:39:17,911 INFO L87 Difference]: Start difference. First operand 41884 states and 46981 transitions. Second operand 5 states. [2020-10-27 00:39:27,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:39:27,485 INFO L93 Difference]: Finished difference Result 91514 states and 103525 transitions. [2020-10-27 00:39:27,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 00:39:27,487 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1294 [2020-10-27 00:39:27,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:39:27,665 INFO L225 Difference]: With dead ends: 91514 [2020-10-27 00:39:27,665 INFO L226 Difference]: Without dead ends: 50346 [2020-10-27 00:39:27,733 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 00:39:27,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50346 states. [2020-10-27 00:39:28,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50346 to 50324. [2020-10-27 00:39:28,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50324 states. [2020-10-27 00:39:29,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50324 states to 50324 states and 55801 transitions. [2020-10-27 00:39:29,203 INFO L78 Accepts]: Start accepts. Automaton has 50324 states and 55801 transitions. Word has length 1294 [2020-10-27 00:39:29,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:39:29,204 INFO L481 AbstractCegarLoop]: Abstraction has 50324 states and 55801 transitions. [2020-10-27 00:39:29,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 00:39:29,205 INFO L276 IsEmpty]: Start isEmpty. Operand 50324 states and 55801 transitions. [2020-10-27 00:39:29,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1370 [2020-10-27 00:39:29,252 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:39:29,256 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:39:29,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 00:39:29,257 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:39:29,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:39:29,258 INFO L82 PathProgramCache]: Analyzing trace with hash 2078984645, now seen corresponding path program 1 times [2020-10-27 00:39:29,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:39:29,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [495471304] [2020-10-27 00:39:29,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:39:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:29,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:30,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:30,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:34,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:34,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1395 [2020-10-27 00:39:34,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 00:39:34,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5188 [2020-10-27 00:39:34,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:34,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:39:34,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 997 [2020-10-27 00:39:34,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-27 00:39:34,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:35,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:39:35,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:35,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:35,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:35,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:39:35,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:35,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 00:39:35,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:35,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:35,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:35,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:35,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:35,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:39:35,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:35,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:35,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:35,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-27 00:39:35,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:35,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-27 00:39:35,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:35,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:35,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:35,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:35,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:35,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:39:35,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:35,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:35,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:35,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-27 00:39:35,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:35,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-27 00:39:35,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:35,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:35,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:35,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:35,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:35,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-27 00:39:35,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:35,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:35,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:35,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 00:39:35,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:35,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 00:39:35,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:35,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:35,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:35,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:35,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:35,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-27 00:39:35,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:35,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:35,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:35,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-27 00:39:35,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:35,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-27 00:39:35,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:35,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:35,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:35,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:35,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:35,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:39:35,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:35,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:35,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:35,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 00:39:35,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:35,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 00:39:35,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:35,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:35,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:35,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:35,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:35,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-27 00:39:35,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:35,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:36,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:36,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-27 00:39:36,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:36,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-27 00:39:36,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:36,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:39:36,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:36,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-27 00:39:36,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:36,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-27 00:39:36,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:36,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:36,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:36,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-27 00:39:36,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:36,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-27 00:39:36,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:36,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:39:36,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:39:36,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-27 00:39:36,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:36,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1107 [2020-10-27 00:39:36,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:36,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:36,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:36,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-27 00:39:36,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:36,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-27 00:39:36,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:36,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:36,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 221 [2020-10-27 00:39:36,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:36,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:37,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1865 backedges. 574 proven. 121 refuted. 0 times theorem prover too weak. 1170 trivial. 0 not checked. [2020-10-27 00:39:37,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [495471304] [2020-10-27 00:39:37,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 00:39:37,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 00:39:37,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376291326] [2020-10-27 00:39:37,477 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 00:39:37,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:39:37,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 00:39:37,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 00:39:37,478 INFO L87 Difference]: Start difference. First operand 50324 states and 55801 transitions. Second operand 7 states. [2020-10-27 00:39:50,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:39:50,618 INFO L93 Difference]: Finished difference Result 104255 states and 116567 transitions. [2020-10-27 00:39:50,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 00:39:50,620 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1369 [2020-10-27 00:39:50,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:39:50,807 INFO L225 Difference]: With dead ends: 104255 [2020-10-27 00:39:50,807 INFO L226 Difference]: Without dead ends: 54647 [2020-10-27 00:39:51,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-27 00:39:51,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54647 states. [2020-10-27 00:39:52,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54647 to 50383. [2020-10-27 00:39:52,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50383 states. [2020-10-27 00:39:52,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50383 states to 50383 states and 55545 transitions. [2020-10-27 00:39:52,171 INFO L78 Accepts]: Start accepts. Automaton has 50383 states and 55545 transitions. Word has length 1369 [2020-10-27 00:39:52,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:39:52,173 INFO L481 AbstractCegarLoop]: Abstraction has 50383 states and 55545 transitions. [2020-10-27 00:39:52,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 00:39:52,173 INFO L276 IsEmpty]: Start isEmpty. Operand 50383 states and 55545 transitions. [2020-10-27 00:39:52,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1394 [2020-10-27 00:39:52,370 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:39:52,375 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:39:52,375 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 00:39:52,375 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:39:52,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:39:52,376 INFO L82 PathProgramCache]: Analyzing trace with hash 650506788, now seen corresponding path program 1 times [2020-10-27 00:39:52,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:39:52,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [515058065] [2020-10-27 00:39:52,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:39:52,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:52,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:53,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:56,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:57,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:57,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1421 [2020-10-27 00:39:57,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 00:39:57,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5088 [2020-10-27 00:39:57,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:57,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:39:57,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1110 [2020-10-27 00:39:57,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 00:39:57,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:58,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:39:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:58,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:58,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:58,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:39:58,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:58,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 00:39:58,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:58,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:58,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:58,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:58,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:58,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:39:58,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:58,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:58,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:58,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-27 00:39:58,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:58,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-27 00:39:58,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:58,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:58,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:58,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:58,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:58,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:39:58,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:58,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:58,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:58,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-27 00:39:58,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:58,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-27 00:39:58,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:58,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:58,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:58,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:58,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:58,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-27 00:39:58,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:58,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:58,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:58,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 00:39:58,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:58,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 00:39:58,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:58,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:58,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:58,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:58,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:58,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-27 00:39:58,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:58,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:58,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:58,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-27 00:39:58,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:58,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-27 00:39:58,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:58,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:58,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:58,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:58,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:58,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:39:58,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:58,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:58,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:58,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 00:39:58,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:58,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 00:39:58,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:58,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:58,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:58,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:58,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:58,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-27 00:39:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:58,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:58,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:58,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-27 00:39:58,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:58,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 00:39:58,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:58,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:58,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:58,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:58,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:58,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-27 00:39:58,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:58,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:58,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:58,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-27 00:39:58,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:58,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-27 00:39:58,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:58,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:39:58,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:58,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-27 00:39:58,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:58,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1096 [2020-10-27 00:39:59,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:59,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:59,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:59,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-27 00:39:59,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:59,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-27 00:39:59,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:59,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:39:59,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:39:59,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-27 00:39:59,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:59,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1204 [2020-10-27 00:39:59,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:59,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:59,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:59,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-27 00:39:59,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:59,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-27 00:39:59,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:59,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:59,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 148 [2020-10-27 00:39:59,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:59,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0